Custom Power Design

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Custom Power Design Profile

Custom Power Design, SMET Ltd.’s division, is a UK-based corporation that provides customised manufacturing services for global users. The company is a small corporation yet has a remarkable reputation for manufacturing and designing converters, inverters, and car chargers. The company also provides custom manufacturing services and builds units (handy mains) from scratch. Custom Power Design’s DC/DC converters, AC/AC inverters, and automotive and PC chargers and adapters are extensively used in various automotive and industrial markets. The company’s convenient platform provides product selection and customisation based on users’ requirements.

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Timmy Matley

18 Jan, 2023

They are doing a great job. They go out of their way to keep us informed about what is happening and how things are progressing. I say it's a great company to work for, they do an AMAZING JOB! KEEP IT UP!

Don’t hesitate to ask questions for better clarification.

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SM4273, Custom Power Design

Modified Sine Wave, 700 & 1500W 3-Pin UK & Schuko Output Sockets The Custom Power Design SM3508 Series is a family...

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SM2802, Custom Power Design

Modified Sine Wave, 200W 'Handy Mains' 3-Pin IEC Output Socket Output connection via 3-pin IEC outlet socket Over-temperature and over-current p...

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SM3754, Custom Power Design

Portable 35W & 48W Switch Mode, Notebook Computer Converter/Charger Portable switch mode battery voltage DC...

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SM4458, Custom Power Design

Portable 35W & 48W Switch Mode, Notebook Computer Converter/Charger Portable switch mode battery voltage DC to DC converters suitable for poweri...

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SM2710, Custom Power Design

Modified Sine Wave, 200W 'Handy Mains' 3 Pin UK Output Socket 11 to 15Vdc or 22 to 30Vdc input Input connec...

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SM3215, Custom Power Design

Modified Sine Wave, 700W 'Handy Mains' 3 Pin UK & Schuko Output Sockets The SM3185 and SM3215 are part of a...

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SM3752, Custom Power Design

Portable 35W & 48W Switch Mode, Notebook Computer Converter/Charger Portable switch mode battery voltage DC...

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SM2711, Custom Power Design

Modified Sine Wave, 200W 'Handy Mains' 3 Pin UK Output Socket 11 to 15Vdc or 22 to 30Vdc input Input connection via...

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SM2730, Custom Power Design

Modified Sine Wave, 200W 'Handy Mains' 3 Pin UK Output Socket 11 to 15Vdc or 22 to 30Vdc input Input connection via...

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SM1760, Custom Power Design

Battery to 300Vdc Converter 120W - 3 Pin IEC Output Socket The SM1760 provides a mains level DC output whic...

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SM3703, Custom Power Design

138W & 440W Switch Mode, DC to DC Battery Voltage Converters Robust switch mode battery voltage DC to DC co...

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SM2715, Custom Power Design

Modified Sine Wave, 200W 'Handy Mains' 3-Pin IEC Output Socket Output connection via 3-pin IEC outlet socke...

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Popular Categories For Custom Power Design

Power Inverters (12)

DC-DC Converters (3)

Car Chargers (6)

Power Inverter Accessories (1)

Categories For Custom Power Design

Power Supplies & Transformers (3)

DC-DC Converters (3)

Popular Items

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SM2802, Custom Power Design

Modified Sine Wave, 200W 'Handy Mains' 3-Pin IEC Output Socket Output connection via 3-pin IEC outlet socket Over-temperature and over-current protection Neon power indicator Ideal for powering personal computers, fax machines, printers, small power tools, domestic equipment and low energy lighting Note Suitable for negative earth battery systems only . Fluorescent lights should have any power factor correction capacitor removed. Maximum load capacitance: 0.5μF, 1.0μF for stock no 243-1737 . When used with cigar lighter plugs, the vehicle socket must have a rating of 1A for every 10W of supplied power. Caution The user is responsible for ensuring the suitability of any equipment connected to these power adaptors - protect from moisture. For inside use only.

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SM4273, Custom Power Design

Modified Sine Wave, 700 & 1500W 3-Pin UK & Schuko Output Sockets The Custom Power Design SM3508 Series is a family of small floor mounting DC/AC converters which are able to power most small office or laboratory equipment from any 12 or 24 V battery system. This DC/AC converter allows up to 700W of continuous power, with short surges of up to 1200W. Ideal applications are with small refrigerators and microwave ovens. Input connection via 2 x M5mm studs Output connection via 3-pin UK and Schuko sockets Output is 50Hz modified sine wave Very high conversion efficiency High surge handling capability accommodating disk drive run-up, motor start etc. Over-temperature and overcurrent protection Integral cooling fan Neon power indicator Remote on/off control facility Mounting flanges Designed for hard-wired fixed installations Optional heavy duty wiring kit SM2793 (stock no. 322-1890 ) recommended Ideal for powering personal computers, fax machines, printers, light industrial power tools, domestic equipment (such as microwave ovens and small refrigerators) and low energy lighting Note Only use with heavy duty (high discharge rate) batteries. Fluorescent lights should have any power factor correction capacitor removed. Maximum load capacitance: 2μF, 3μF for stock nos. 431-5508 & 431-5514 . Caution The user is responsible for ensuring the suitability of any equipment connected to these power adaptors - protect from moisture. For inside use only.

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SM3754, Custom Power Design

Portable 35W & 48W Switch Mode, Notebook Computer Converter/Charger Portable switch mode battery voltage DC to DC converters suitable for powering notebook computers (charge time controlled by computer) and a wide range of other low voltage, low power mobile electronic equipment. Electrically isolated from the vehicle chassis Constant current limited output rated for continuous battery charging Input lead (0.7m approx.) fitted with cigar lighter plug Output lead (0.6m approx.) fitted with 2.5mm DC power plug (centre positive) Supplied with user guide and safety leaflet Additional Information O/P Voltage adjustment range ±5% (internal preset) Input current 1A per 10W loading Current limit (continuous) 125% ±17% Input/Output isolation 500kΩ at ±63Vdc max. Unit is designed to run warm at maximum power. Allow adequate ventilation. Caution The user is responsible for ensuring the suitability of any equipment connected to these vehicle power adaptors. For in vehicle use only. Protect from moisture.

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SM4458, Custom Power Design

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SM2710, Custom Power Design

Modified Sine Wave, 200W 'Handy Mains' 3 Pin UK Output Socket 11 to 15Vdc or 22 to 30Vdc input Input connection via cigar plug (except model SM2711 stock no. 597-481 which is 3 wire) Output connection via 3-pin UK outlet socket Audible battery discharge warning Auto shutdown at low battery voltage Model SM2711 (stock no. 597-481 ) is designed for direct wired installations (low current control wire for on/off switching) Model SM2730 (stock no. 597-497 ) can also be direct wired by removing the plug Fluorescent lights should have any power capacitor removed when used with these units Some colour televisions and monitors designed for universal mains input (90 to 264Vac) may not operate with the 230Vac inverters. Use model SM2802 (stock no. 243-1737 ) 115Vac output, to reduce the initial surge These units only have their RMS output voltage closely regulated. For equipment sensitive to the crest of the mains voltage the SM1791 (stock no. 593-344 ) is recommended Optional mounting kit SM2791 (stock no. 597-510 ) and direct wiring kit SM2797 (stock no. 512-8147 ) available. The direct wiring kit is used with cigar plug models, it consists of a cigar socket on 2m of cable Ideal for powering personal computers, fax machines, printers, small power tools, domestic equipment and low energy lighting Load Capacitance 0.5μF max. Load capacitance must not exceed value shown. Dimensions L. (mm) W. (mm) H. (mm) Wt. (kg) Fixing Centres 141 94 45 0.8 155 x 70mm M3.5 holes (SM2791 mounting kit) Note Suitable for negative earth battery systems only. When used with cigar lighter plugs, the vehicle socket must have a rating of 1A (0.5A for 24V units) for every 10W of supplied power. Caution The user is responsible for ensuring the suitability of any equipment connected to these power adaptors - protect from moisture. For inside use only.

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SM3215, Custom Power Design

Modified Sine Wave, 700W 'Handy Mains' 3 Pin UK & Schuko Output Sockets The SM3185 and SM3215 are part of a range of Handy Mains adaptors which convert battery power into a nominal 230 V ac rms 50 Hertz supply, suitable for operating small power tools, domestic appliances, etc. Please note that only heavy duty batteries are suitable. These power inverters have a nominal continuous power rating into resistive load of 700 Watts. An audible warning indicates when the battery is becoming discharged. The SM3185 and SM3215 are packaged in a powder coated folded metal box. Input wires enter on one side face and the outlet socket is mounted on the top face. 11 to 15Vdc or 22 to 30Vdc input Input connection via 2 x M5mm studs and 2.8mm push on crimp low current switch wire Output voltage 230Vac ±15V 50Hz modified sine wave Output connection via 3-pin UK and Schuko sockets Low battery alarm and shutdown Over temperature and overcurrent protection Neon power indicator Mounting flanges and integral fan Designed for direct wired fixed installations (low current control wire for on/off switching) Only use with heavy duty (high discharge rate) batteries Fluorescent lights should have any power factor correction capacitor removed Optional heavy duty wiring kit SM2793 (stock no. 322-1890 ) recommended Ideal for powering personal computers, fax machines, printers, small power tools, domestic equipment and low energy lighting Load Capacitance 2.0μF max. Load capacitance must not exceed value shown. Note These units are suitable for negative earth battery systems only, but they can be isolated for marine use by removing grounding screws. Caution The user is responsible for ensuring the suitability of any equipment connected to these power adaptors - protect from moisture. For inside use only.

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SM2711, Custom Power Design

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SM3752, Custom Power Design

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SM2730, Custom Power Design

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SM1760, Custom Power Design

Battery to 300Vdc Converter 120W - 3 Pin IEC Output Socket The SM1760 provides a mains level DC output which is the most efficient means of supplying power to equipment employing switch mode type power conversion (most modern electric equipment).,To check compatibility: Measure the resistance between the live and the neutral pins of the equipments connector (with equipment mains switch in 'on' position). If the resistance is greater than 10KΩ (no mains transformer evident) the equipment should be compatible. Wide input voltage range (11-32Vdc) In line input connectors (supplied) Shuttered IEC output socket Ignition or remote on/off control by logic compatible input Inbuilt RFI filter for low noise High efficiency (84% typical) High output surge rating Output short circuit protection Rugged metal case construction Input Voltage 11-32Vdc continuous 25A peak (10-38Vdc for 10 secs.) Output Voltage 300Vdc ±5% Power Rating 120W continuous, 200W peak @ 12V input, 30 sec. max for any one surge Note Suitable for negative earth battery systems only.,Not suitable for use with equipment employing a 50Hz mains transformer or AC motors. Caution The user is responsible for ensuring the suitability of any equipment connected to these vehicle power adaptors. For inside use only. Protect from moisture. Battery to Mains Level DC Output

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SM3703, Custom Power Design

138W & 440W Switch Mode, DC to DC Battery Voltage Converters Robust switch mode battery voltage DC to DC converters for use when operating 12Vdc or 24Vdc equipment (communications, alarms, lighting, etc.) from either a 12V or 24V battery system (coaches, HGV and agricultural vehicles utilise 24Vdc). Wide input voltage range Ignition or remote on/off control Inbuilt RFI filter for low noise High efficiency (86% typical) High output surge rating Overvoltage/Overcurrent protection 12V or 24V lead acid battery charging Rugged metal case construction Supplied with user guide and safety leaflet Technical Specification Stock no. Vin range (Vdc) Vout nom. (Vdc) Vout max. (Vdc) Pout Cont. (W) Iout Cont. (A) 593-726 19-32 12 13.8 ±0.1 138 10 431-5479 11-16 24 27.7 ±0.3 440 17 431-5485 21.6-32 12 13.8 ±0.2 440 33 Technical Specification Stock no. Line Reg % Load Reg % Ripple (mV) Op. Temperature (°C) L. (mm) W. (mm) H. (mm) Wt. (Kg) 593-726 5 5 50 -20 to +50 142 94 39 0.6 431-5479 7 7 200 -20 to +50 247 103 63 1.2 431-5485 7 7 200 -20 to +50 247 103 63 1.2 Note The SM2430 is suitable for negative earth systems only but the SM3702 and SM3703 may be isolated for marine use. Caution The user is responsible for ensuring the suitability of any equipment connected to these vehicle power adaptors. For in vehicle use only. Protect from moisture.

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SM2911, Custom Power Design

Portable 100W Battery to 330Vdc Converters IEC Output Socket Suitable for powering notebook computers and cam-corders (via their chargers), and other equipment employing switch mode power conversion (most modern electronic equipment).,To check compatibility: Measure the resistance between live and neutral pins of the chargers mains connector (with no mains connected). If the resistance is greater than 10KΩ (no mains transformer primary) the equipment should be compatible. Audible battery discharge warning Auto shutdown at low battery voltage Input lead (0.7m approx.) fitted with cigar lighter plug Output lead (1.4m approx.) fitted with 2 pin (cassette) or 3 pin IEC connector Supplied with user guide and safety leaflet Optional direct wiring kit SM2797, stock no. 512-8147 (consisting of cigar lighter socket and 2m of cable) Technical Specification Stock No Input Vdc Input Connection Mains Output Output Connection 243-1686 11-15 Cigar plug 330Vdc 3-pin IEC lead (C13) 243-1692 11-15 Cigar plug 330Vdc 2-pin IEC lead (C7) 243-1709 22-30 Cigar plug 330Vdc 3-pin IEC lead (C13) 243-1715 22-30 Cigar plug 330Vdc 2-pin IEC lead (C7) Power Rating 100W continuous max. 120W for 1 minute from cold Operating Temp. Range -20 to +40°C Dimensions L. 111, W.60, H. 30mm, Wt. 400g Note Suitable for negative earth battery systems only.,Not suitable for use with equipment employing a 50Hz mains transformer.,When using 12V models with cigar lighter plugs, the vehicle socket must have a rating of 1A (0.5A for 24V units) for every 10W of supplied power.,Unit is designed to run warm at maximum power, allow adequate ventilation. Caution The user is responsible for ensuring the suitability of any equipment connected to these vehicle power adaptors. For inside use only. Protect from moisture. Batter...

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