Find answers to frequently asked questions.
While every effort has been made to make this FAQ as informative as possible , if you have any questions that are not answered below, or you require clarification on any points arising, please feel free to contact us.
General
Some of your more normal general and commercial questions answered.
You can buy direct from ourselves, or in countries where we have representation thru any of our authorised resale partners.
In the UK, if you prefer for ease of transaction, you can also purchase thru the following national electrical wholesalers , however we suggest you talk to us first to ensure you know exactly what you require before asking the wholesaler for a price quotation.
All requests for a Quote or Price should be made directly to ourselves.
Upon receipt of your enquiry if we have an authorised resale partner in your region, who is 'best suited' to deal with your exact requirements, we will introduce you to them and working together we will present a formal proposal for your consideration.
| Requests can be made in the following way - | |
| Email: | Drop us an e-mail advising your exact requirements and also full contact details. |
| Online Form: | Complete our Online Request for Quotation Form. |
| Telephone: | and of course, you could just simply give us a call! |
At Sinalda UK we always strive to turn around quotations within 2 to 3 working days, but at certain times this may take slightly longer, especially if multiple options and / or additional freight costs are requested.
Please check-out the World Voltages Report in the Resources Section of this site for details on the voltages to be found in the various countries of the world. As well as advising the relevant Single and Three Phase voltages to be found, we also try to give you a bit of an insight into the typical voltage problems that you can, in our experience, expect to witness in the country.
Yes. While traditionally the need for the regulation and control of the incoming mains supply has been considered the province of business and government organisations our Voltage Stabilizers and Power Line Conditioners can also be used in a domestic / home environment. To learn more please check-out the Home Voltage Stabilizer white paper in the Resources section of this website. If you are not familiar with choosing the right AC Voltage Stabilizer or Power Line Conditioner for your needs it can be a daunting and at times frustrating task. Over engineer the solution and it can be very expensive. Select a system that does not address all your identified power problems, or consider locally available resources, and you can so easily waste money. To ensure you select the right solution please check-out our Buyers Guide in the Resources section of this website.
The various design technologies utilised to deliver voltage stabilisation can often be confusing and it is not always clear as to which technology is best suited for a particular application. As one of the world’s leading specialist Quality manufacturers and suppliers of Voltage Stabilizers and Power Line Conditioners we offer probably the widest choice and cross section of alternative design types and models. To learn more about the various design types and their advantages and disadvantages check-out our Design Topology Overview in the Resources section of our site.Strict company policy does not permit the issue of product Price Lists other than to authorized resellers / distributors or for specific client project requirements.
If you would like to give us details of your specific requirement we would be happy to quote you accordingly. Learn more about our Competitive Pricing Strategy.
With numerous other companies out there offering Voltage Stabilizers and associated Power Conditioning solutions . . . . Why buy from us? Find out why you should always insist on Sinalda UK - check-out the Top 10 Reasons for Buying from our Company. After all, no one likes paying more for less! All our product is of UK design. 
Sinalda UK is a formally registered trademarked UK and European Brand and all our product is of innovative UK design. Over 10 years ago now, with the ever increasing costs of manufacturing in the UK and given that our prime customer base tended to be overseas, we decided to move our manufacturing operation to the Far East. Today, our latest generation “mSVR Series” Servo Electronic, “ESR Series & FCL Series” Static Electronic / Digital solutions are manufactured in Shenzhen, China, just over the border from Hong Kong and our traditional Variable Transformers, Servo Electronic & Industrial Magnetic Induction Voltage Stabilisers are manufactured in Taiwan. Our shift to overseas production has enabled us to ensure we are able to continue to deliver quality product at competitive prices. Only by delivering Quality in product and service have we been able to consistently grow our client base year on year. Today we are an approved supplier to many well-known major international corporations and public organisations.
Sinalda UK is a formally registered trademarked UK and European Brand and all our product is of innovative UK design. Over 10 years ago now, with the ever increasing costs of manufacturing in the UK and given that our prime customer base tended to be overseas, we decided to move our manufacturing operation to the Far East. Today, our latest generation “mSVR Series” Servo Electronic, “ESR Series & FCL Series” Static Electronic / Digital solutions are manufactured in Shenzhen, China, just over the border from Hong Kong and our traditional Variable Transformers, Servo Electronic & Industrial Magnetic Induction Voltage Stabilisers are manufactured in Taiwan. Our shift to overseas production has enabled us to ensure we are able to continue to deliver quality product at competitive prices. Only by delivering Quality in product and service have we been able to consistently grow our client base year on year. Today we are an approved supplier to many well-known major international corporations and public organisations. 
We offer probably the best availability on Voltage Stabilisers and associated Power Line Conditioners. Many of our most popular ratings are readily available from stock at the factory or from one of our strategically located Service and Distribution Hubs. Where a solution is not readily available, due to our considerable investment in component inventory and fine-tuned accredited build processes, we are able to ensure very short lead times on deliveries - even for the largest of models. To place an order we would request that you simply send us a formal Purchase Order, or if more appropriate an email accepting the proposal we have made. Upon receipt of your instructions, if you do not have prior agreed credit facilities with ourselves, we will send you a Proforma Sales Invoice requesting payment in accordance with terms stipulated in our proposal. A speedy settlement is recommended so we can confirm the build order on our factory or stock allocation at the relevant distribution centre. Our standard preferred payment method is Electronic Funds / Bank Transfer, however should you prefer to make payment using a Debit / Credit Card (VISA / MasterCard, or alternatively via the PayPal eWallet online payment system, this can be done via our secure online payment portal. Within 2 to 3 working days of getting this payment, or receiving an order from an approved credit account holder, we will send you a formal Order Acknowledgement detailing our interpretation of your requirements and confirming the anticipated dispatch / delivery date. If you do not agree with our interpretation of your requirements we would request that you advise us of the discrepancies within 24 hours.
We accept payments in GBP £, Euro € and US $.
| Payments can be made using the following methods - | |
| EFT: | Ideally all payments should be made by Electronic Bank Transfer (EFT/BACS). |
| Details of the account to which payment should be made are clearly identified on our Sales Invoices. | |
| Debit / Credit Card: | We accept Debit and Credit Card payment via our secure Online Payment Portal - being fully PCI Compliant (Payment Card Industry Data Security Standard) |
 | The credit cards accepted on our Online Portal are VISA or MasterCard. |
| The price we quote is the price you pay - there are no hidden Credit Card charges! | |
| NB: If you require to make payment by this method please advise at time of ordering so we can send you the unique secure URL link you should use to make the online payment. | |
 | Payments can now also be accepted thru the PayPal eWallet online payment system using the services of our secure Online Payment Portal. |
| NB: If you require to make payment by this method please advise at time of ordering so we can send you the unique secure URL link you should use to make the online payment. | |
| Cheque: | Cheque payment is an option, but only when drawn on a UK Clearing Bank and in GBP £. |
| NB: It should be noted that our bank insist on 5 to 7 working days to process such payments and we will not release orders until the funds have cleared our account. | |
| Letter of Credit: | As a general rule we do not accept payment by Letter of Credit unless the order value is in excess of US $250,000. |
| NB: When using this form of payment we advise that the Letter of Credit must be confirmed by a UK Clearing Bank, being 100% payable at sight with all bank charges to the openers account. | |
One of the most common questions we get asked is what exactly is the difference between a Voltage Stabiliser and a Power Line Conditioner. In essence both protect against voltage transients, spikes, sags and brownouts, but a Power Conditioner also offers additional protection against Electrical Noise and higher level defence against transients and spikes.
Every year we are contacted with many requests from prospective resellers wishing to market our Voltage Stabilizer Solutions. We are very careful as to whom we choose to represent the Sinalda UK brand and associated solutions. Businesses must be prepared to demonstrate a high level of commitment to our solutions and be suitably qualified to sell, support and ideally ultimately stock appropriate Stabilizer solutions. To learn more about our Authorised Reseller Programmes please check-out the Resellers section of this site.| No. If you are looking for a UPS system then we normally recommend you talk to Computer Power Protection (CPP) of Chichester in the UK - a leading independent Quality supplier with unrivalled experience in the market. |  | |||
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At Sinalda UK we are committed to the highest of standards in Corporate Governance - being regarded as central in ensuring the continuing strong performance of our business and in maintaining the confidence of all internal and external stakeholders. For us, good governance is about managing the business effectively and responsibly and in a way which is honest, transparent and shows accountability. To learn more please check out the Corporate Governance pages on our site. As a merchant we are not advised by our online payment processor as to the reason why a transaction payment may have been declined. There could be a number of reasons why the payment was not authorised, including perhaps the card details entered are no longer valid or there was insufficient funds available on your card to cover the required amount at the time of the payment attempt. However, the most the common reason that we encounter is that because our transaction values tend to be on the somewhat large size, when compared to "normal run of the mill" general card payment values, the card issuer will not authorise the payment unless they get your express permission. As such, we would suggest you speak to your card issuer and advise them of the payment you wish to make to us so that when you attempt to make the payment again they are in a position to authorise the transaction accordingly. Due to inbuilt security features on our payment portal, when you are ready to make payment again the web payment link that you previously used will be shown as expired. This is not a major problem! - Simply drop us an email requesting a new payment link and we will send one over to you. Of course if you do not want to make payment by card you can always simply pay us by EFT (Electronic Bank Transfer). All the details you need to make such a payment are clearly shown on sales invoice we will have sent you when we emailed you the card payment link.
Terminology
We appreciate that understanding some of the terms and jargon used on this site, and in our support documentation, can be an issue for those less au-fait with our market sector.
Below you’ll find a list of some of the more common terms we refer to, along with an explanation of what each means.
Through our Servo Electronic design we are able to harness the advantages of a fusion of motor-driven Variable Transformers and modern-day electronics to deliver protection against the vagaries of voltage irregularities on the input utility supply. Utilising this cost effective compact design, our Servo Electronic Voltage Stabilisers and Power Line Conditioners deliver negligible waveform distortion and extremely low harmonic distortion (<1%). With extremely high reliability (MTBF >125,000 Hours), long-life expectancy and an efficiency of 98%, or better, ensures low running costs and cost of ownership.
Inbuilt protection against all too common sudden or momentary overvoltage conditions, such as voltage spikes and transients, which can cause damage to the Voltage Stabiliser, Power Line Conditioner or load equipment.
On the three phase products each phase is independently controlled with the precise method of control depending upon the stated supply requirements but each method will ensure that the output voltage of each phase will remain within its specified accuracy irrespective of the changes in load conditions, even with 100% load imbalance.
Ability to support electrical and electronic equipment with inherent initial high current draws on start up. Surge ratings – 10 x max current rating for 2 seconds, 3 x for 1 minute and 2 x for 5 minutes
At the moment of switch on the voltage stabiliser / conditioner will provide a controlled lower output voltage that will then smoothly rise to the pre-set output voltage - thereby avoiding any momentary over voltage situations which could possibly damage the connected load.
Power Module Protection - Protection on the variable transformer power modules to safeguard against excessive wear on the brush gear. A unique feature that, in the absence of effective routine maintenance, greatly minimises the risk of power module malfunction.
By closely following the instructions in the Operator's Manual, operation of the switch allows the electronic regulation control to be removed from circuit whilst still allowing the unit to support the load with an unregulated voltage supply.
Offering an exceptionally low level of annual (or biennial) ongoing maintenance required, being deliverable by universally available skill sets held by most competent electricians.
Ability to configure the voltage stabiliser / power conditioner, if required, to shutdown in the event of the incoming voltage supply going outside the normal input window or, via the optional ‘no-volt’ interface - notification for any on-site building BMS or monitoring system.
Any failure of phases on a three phase supply will be immediately detected and alarmed accordingly. The system will automatically power down to protect the load side equipment.
Delivers over current input protection - fitted as standard on all Servo & Static Electronic models and alternative IP54 solutions.
Through the inclusion of a shielded isolation transformer, provides enhanced spike and electrical noise (common & normal interference) suppression and neutral ground bonding. Delivers what is commonly referred to as a ‘CLEAN’ supply.
Ensures over current output protection - available as an option on all systems.
Inclusion of Type 2 Surge Arrestors to offer protection against extremely high voltage surges and transients typically caused by lightning strikes on the supply line. Available as a standard feature on all outdoor IP54 / NEMA 3 solutions and as an option /add-on for indoor IP20 / NEMA 1 systems.
An optional add-on switch / breaker, not to be confused with the Bypass Control Switch, which will allow the operational components of the unit to be isolated from the incoming mains supply and the load. Useful when performing deep maintenance on a system, or in the highly unlikely event of a major system malfunction.
Logistics
Answers to common questions we are asked about the packing of items and their transportation.
When quoting UK or European clients our prices are normally either on a DAP basis - delivered their offices (Kerbside) - or Ex-Works / Export Packed our UK Distribution Centre in Sunbury-On-Thames, Middlesex, UK (14 miles from London Heathrow Airport) - being either in GBP £ or Euros € (as applicable). For all Other Customers prices are general quoted in US $ on an Ex-Works / Export Packed basis - with air or sea freighting charges to the clients local sea or airport being quoted as billable additions. For US and Canadian mainland clients we are also able to offer pricing on a DDP basis - delivered their offices (kerbside) with all duties and taxes paid. Should any of our customers wish to handle their own freighting, with their nominated shipping agents collecting the goods from our factory this is not a problem and most of our quotes show the anticipated packing case sizes and weights. For a full understanding of the terms on which we are able to delivery our products please check-out the list below. | Abbreviation | Description | ||
| EXW | Ex-Works / Packed (named place of collection in country of export) | ||
| Sinalda UK makes the goods available at our factory or distribution hub for collection. Goods are supplied export packed, being suitable for sea or airfreight. The buyer is responsible for uploading. | |||
| The buyer is responsible for clearing the goods for export and pays all transportation costs and also bears the risks for bringing the goods to their final destination. | |||
| Sinalda UK does not load the goods on the collecting vehicles and doesn't clear them for export. If we do load the goods we would do so at buyer's risk and cost. If parties wish us to be responsible for the loading of the goods on departure and to bear the risk and all costs of such loading, this must be made clear in writing at the time of purchase. | |||
| FCA | Free Carrier (named place of delivery in country of export) | ||
| Sinalda UK delivers the goods, cleared for export, to the buyer's designated carrier / freight handling agents at a named and defined location in the country of export. Offloading of the goods is the responsibility of the buyer. | |||
| FOB | Free on Board (named sea port in country of export) | ||
| Sinalda UK is responsible for clearing the goods for export and loading the goods on board a vessel designated by the buyer. | |||
| Basically Sinalda UK arranges for the transportation of goods to the port and pays for uploading onto the vessel. The passing of risk from Sinalda UK to the buyer occurs when the goods pass the ship's rail at the port of shipment. | |||
| The buyer pays for all subsequent costs - i.e. marine freight transportation, insurance and DDP Charges (Clearance, Handling, Import Duties/Taxes & Local Delivery Charges). | |||
| CPT | Carriage Paid To (named destination Airport) | ||
| Sinalda UK pays for carriage to the named destination airport. | |||
| Insurance for the goods is NOT included and is the responsibility of the buyer. Risk transfers to the buyer upon the handing over of goods to the first freight handling agent / courier at the place of shipment in the country of export. | |||
| On arrival at the destination airport the buyer is responsible for clearing and arranging delivery of the goods to the final destination and is responsible for paying all DDP Charges (Clearance, Handling, Import Duties/Taxes & Local Delivery Charges). | |||
| CFR | Cost and Freight (named destination Seaport or Container Freight Station ) | ||
| Sinalda UK pays for carriage to the named destination sea port or container freight station. | |||
| Insurance for the goods is NOT included and is the responsibility of the buyer. Risk is transferred to the buyer once the goods are loaded on the vessel. | |||
| On arrival at the destination sea port or container freight station the buyer is responsible for clearing and arranging delivery of the goods to the final destination and is responsible for paying all arising DDP Charges (Clearance, Handling, Import Duties/Taxes & Local Delivery Charges). | |||
| CIP | Carriage and Insurance Paid to (named destination seaport / container freight station or airport) | ||
| Exactly the same as CPT or CFR except that Sinalda UK in addition procures and pays for the insurance to the destination port (sea/air) or container freight station. | |||
| On arrival the buyer is responsible for clearing and arranging delivery of the goods to the final destination and is responsible for paying all arising DDP Charges (Clearance, Handling, Import Duties/Taxes & Local Delivery Charges). | |||
| DAP | Delivered at Place (named place of destination) | ||
| Sinalda UK pays for carriage to the named destination place and assumes all risks prior to the point that the goods are ready for offloading by the buyer. Customs Clearance, Import Duties & Taxes and any applicable local Sales Taxes are the responsibility of the Buyer. | |||
| DDU | Delivered Duty Unpaid (named place of destination) | ||
| Sinalda (UK) pays for carriage to the named destination place and covers any associated Customs Clearance costs. Sinalda assumes all risks prior to the point that the goods are ready for offloading by the buyer. Any Import Duties / Taxes & local Sales Taxes applicable on importation would be for the account of the Buyer. | |||
| NB: These are the terms typically utilised / applied when shipping via DHL Express, FedEx or UPS. | |||
| DDP | Delivered Duty Paid (named place of destination) | ||
| Sinalda UK is responsible for delivering the goods to the named destination place in the country of the buyer, and pays all costs in bringing the goods to the destination - including import duties and taxes. Sinalda UK is not responsible for offloading at the destination. | |||
| Generally in accordance with the International Commercial Terms / Incoterms Rules - Eighth Edition | |||
When shipping from our Distribution Hubs in China or Taiwan there are two ways either by Sea or Air freight. We are more than happy to quote for such freighting services - with our charges normally being based on volume of the consignment for sea freight and weight for air freight. If you wish to advise details of your preferred / most convenient international air or sea port, we will be pleased to quote for additional freight costs as appropriate. Should you prefer to organise your own freighting arrangements, with your nominated local freighting agent collecting the goods from our Distribution Hubs, our quotes normally advise the anticipated packed sizes and weights of the goods. NB: European countries are normally supplied thru our UK Distribution Centre and orders are generally shipped overland via truck (on a 3 to 7 Day Service) from the UK. What method should I choose? Air freight is usually the more expensive, but speedier option (typically 3 to 7 Days). Sea freight is normally cheaper, but can take longer (see - Typical Sea Freight Transit Times). The choice really depends on any budget constraints and also how quickly you want the goods. Please Note that with larger systems (i.e. where the packed height of an item exceeds 155 cm - the usual cargo height restriction for cargo on a normal passenger aircraft) air freight may not be an available option if the destination airport is not serviced by a dedicated air cargo freighter service. 
For typical sea freight transit times when shipping from our Distribution Hubs please see Typical Sea Freight Transit Times. Alternative air freight transit times are usually 3 to 7 Days. NB: European countries are normally supplied thru our UK Distribution Centre and orders are generally shipped overland via truck (on a 3 to 7 Day Service) from the UK.
The Harmonized Commodity Description and Coding System (HS) of tariff nomenclature is an internationally standardized system of names and numbers for classifying traded products developed and maintained by the World Customs Organization (WCO) (formerly the Customs Co-operation Council), an independent intergovernmental organization with over 170 member countries based in Brussels, Belgium. Sinalda (UK) products are normally classified under the following HS Codes | Product | HS Code | HS Description | ||
| Voltage Stabilisers and Power Line Conditioners | 8504.40.9590 | Standard | ||
| US HTS Code = 9032.89.4000 - Automatic Voltage And Voltage - Current Regulators | ||||
| Variable Transformers | 8504.33.0000 | Electrical Transformers – Above 1 kVA, but not exceeding 16 kVA | ||
| 8504.33.0020 | Electrical Transformers – Above 16 kVA, but not exceeding 50 kVA | |||
| 8504.33.0040 | Electrical Transformers – Above 50 kVA, but not exceeding 500 kVA | |||
| Static Variable Voltage and Frequency Converters | 8504.40.3090 | Static Converters - Other | ||
| Volt Drop Compensators (Constant Voltage Compensators) | 8504.40.9590 | Standard | ||
| US HTS Code = 9032.89.4000 - Automatic Voltage And Voltage - Current Regulators | ||||
| Automatic Voltage Optimisers | 8504.40.9590 | Standard | ||
| US HTS Code = 9032.89.4000 - Automatic Voltage And Voltage - Current Regulators | ||||
Normal standard commercial international shipping documentation includes - Commercial Invoice, Packing List and Airway Bill or Bill of Lading. Any Third Party Conformance Certification, Certification of Origin or Legalisation / Attestation of any documents can be provided on request - being subject to additional charge.
Yes. Should a client require a formal Heat Treatment / Fumigation Certificate for a particular shipment this can be arranged with due notice - being subject to additional charge. International Standards For Phytosanitary Measures No. 15 (ISPM 15 known as NIMF15 in Spanish speaking countries) is an International Phytosanitary Measure developed by the International Plant Protection Convention (IPPC) that directly addresses the need to treat wood materials of a thickness greater than 6mm, used to ship products between countries. Its main purpose is to prevent the international transport and spread of disease and insects that could negatively affect plants or ecosystems. ISPM 15 affects all wood packaging material (pallets, crates, dunnages, etc.) requiring that they be debarked and then heat treated or fumigated with methyl bromide and stamped or branded, with a mark of compliance. Products exempt from the ISPM 15 are made from alternative material, like paper, plastic or wood panel products (i.e. OSB, hardboard, and plywood). Below we list the various container types and sizes we utilise when shipping via sea on a FCL (Full Container Load) basis.
| AVAILABLE CONTAINER TYPES | ||||||
| Length | Type | Dimensions L x W x H (cms) | Door Size W x H (cms) | Roof Aperature (cms) | Approx Volume (Cubic Metres) | Max Weight (Kgs) |
| 20 ft | General Purpose | 589 x 235 x 239 | 234 x 258 | 33.2 | 22,000 kg | |
| 40 ft | General Purpose | 1203 x 235 x 239 | 234 x 258 | 67.7 | 27,000 kg | |
| 20 ft | High Cube | 589 x 235 x 269 | 234 x 258 | 37.2 | 24,800 kg | |
| 40 ft | High Cube | 1203 x 235 x 269 | 234 x 258 | 76.4 | 30,480 kg | |
| 20 ft | Open Top | 588 x 235 x 235 | 234 x 258 | 549 x 216 | 32.4 | 21,823 kg |
| 40 ft | Open Top | 1202 x 235 x 232 | 234 x 258 | 1187 x 218 | 65.7 | 28,280 kg |
Troubleshooting
Some basic front line troubleshooting techniques to assist in swiftly identifying any problems that may have occurred with your equipment and how to speedily resolve them.
Please note, these procedures should only be carried out by duly qualified competent electricians with due regard to standard applicable safety practices.
At Sinalda UK the uncompromising quality of our products allows us to offer standard and extended warranty provisions that are market leading in all aspects. For spares required under valid warranty claim situations, spares are supplied free of charge. Delivery of these spares is normally arranged through the express door to door courier services of DHL or FedEx. We have strategic inventory locations and accurate process and stock control to deliver near total availability on commonly requested spares. For most request we are able to offer delivery direct from inventory and strive to offer in emergency situations a 24 to 48 hour turn around on shipment.
