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Product
Switch-Mode Power Supply
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Toellner Electronic Instrumente GmbH
Supplies incorporate a simple full-wave rectifier connected to a large energy-storing capacitor.
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Product
P Series Panel Meters
ST-60
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Standard Electric Works Co., Ltd
● DC up to 30A● AC up to 30A● Case and Composition: Acrylic resin front. Bakelite case. ABS case. Four studs mounting.● Accuracy :DC : Class 2.0 AC : Class 2.5 Rectifier : Class 2.0● Color：Black case, white scale plate.● Pointer：Tube type, color in black or red.
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Product
P Series Panel Meters
ST-38N
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Standard Electric Works Co., Ltd
● DC up to 15A● Case and Composition: Acrylic resin front. ABS case. Four studs mounting. Two studs mounting.● Accuracy :DC : Class 2.0 AC : Class 2.5 Rectifier : Class 2.0● Color：Black case, white scale plate.● Pointer：Tube type, color in black or red.
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Product
Selenium Voltage Doubler Rectifier P/N 6063C
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Selenium Voltage Doubler Rectifier, P/N 6063CPlate size: 1.6” x 1.6”Each plate is rated for 33 Volts, 9 AmpsNumber of plates: 24
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Product
Ammeter
AC Rectifier Type Coil Meter
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measures the alternating voltage and current with the help of rectifying elements and permanent magnet moving coil type of instruments. However the primary function of rectifier type of instruments work as voltmeter. Now one question must arises in our mind why we use rectifier type of instruments widely in the industrial world though we have various other AC voltmeter like electrodynamometer type instruments, thermocouple type instruments etc? The answer to this question is very simple and is written as follows.
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Product
High Voltage Power Supplies
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FuG high-voltage power supplies of all types except HYN are primary switched-mode power supplies with pulse width modulation . The rectified mains voltage is chopped into square pulses of constant frequency, transformed, rectified and smoothed. The square-wave voltage is pulse-width modulated for regulation.
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Product
Stationary Industrial And Railway Power Supply
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For decades, Gustav Klein has been supplying safe power supplies for industry and railways, such as rectifiers, inverters, DC converters, UPS and BSV systems, as well as frequency converters with a fixed output frequency.
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Product
Turns Ratio Testers
TRT Standard Series
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When it comes to choosing a transformer turns ratio tester, TRT Standard series offers some of the most advanced instruments with LCD display out in the market. Each model measures transformer excitation current and phase shift performs automatic vector group detection and magnetic balance on three-phase transformers and three-phase autotransformers. Furthermore, they have a built-in true three-phase power source. Because of that, TRT Standard instruments can test transformers with special configurations, such as phase-shifting, rectifier, arc-furnace, traction transformers, etc.The instruments can output test voltages from 1 V AC to 250 V AC, depending on the chosen model. High test voltage of 250 V AC provides more accurate turns ratio testing compared to other turns ratio testers on the market and extremely low test voltage of 1 V AC enables turns ratio verification of current transformers.TRT Standard series consists of:TRT03 Models (TRT03A, TRT03B, TRT03C) – single-phase voltage up to 100 VTRT3x Models (TRT30A, TRT30B, TRT30C, TRT33A, TRT33B, TRT33C) – single and true three-phase voltage up to 100 VTRT63 Models (TRT63A, TRT63B, TRT63C) – single and true three-phase voltage up to 250 VMore about models differences can be found under the downloads tab, in brochures and comparison sheets.A user can create test templates using the DV Win software and store them in the PC’s memory for later use when in the field.TRT Standard series models have a built-in tap changer control unit. Consequently, it enables remote control of an on-load tap changer (OLTC) directly from the tester. In order to make the most out of this feature, the DV-Win software can be programmed to do everything automatically – running turns ratio tests, changing OLTC tap positions and saving results. This option, especially in combination with test templates, significantly facilitates and shortens the turns ratio testing time.
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Product
Field Effect Rectifiers
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ST field-effect rectifier diodes (FERD) help improve designs with new versions focusing on trade-off upgrades. Field-effect rectifier diodes belong to our STPOWER family. The design of the FERDs has allowed both a decrease in the voltage drop and a decrease in the leakage current temperature coefficient. As a result, the runaway safety margin is improved and maybe beyond the typical safety margin of Schottky barrier diodes.
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Product
4kW Electronic Load
PT04-48
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For Telecom Rectifier and Power Supply testing. This model has been developed to accommodate testing of both 48V and 24V telecommunications power systems or Power Supplies. It is also useful as a general-purpose variable Load. Its founding principle is simplicity – ease of use, enhanced reliability, greater value for money and wider applicability.
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Product
Analog Power Supply
Type NPS-2412
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National RF's Type NPS-2412 analog power supply was designed to be used in communication equipment where radiated switching inverter noise from conventional “switching type” supplies is not acceptable. The power supply consists of a standard rectified transformer output driving a pair of voltage regulators and filtering networks. The 2412 offers an adjustable voltage output between 2 and 24 volts as well as a fixed voltage output of 12 volts. A maximum of 20 Watts of DC power can be supplied from the unit. As the voltage regulators dissipate power in the regulation process, the power to the load is derated accordingly, dependent on the set voltage to the load. The adjustable regulator is a standard LM-317T integrated circuit device. The fixed regulator is a standard LM 7812 device. Upon customer request, the LM 7812 device may be changed to any voltage rating within the the LM-78xx series of regulators. Contact National RF for this modification if desired.
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Product
W Series Panel Meter
ST-100R
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Standard Electric Works Co., Ltd
● Accuracy : Moving Coil Type DC, Class 2.0 Moving Iron Type AC, Class 2.5 Rectifier Type AC, Class 2.0● Case and Composition : Acrylic resin front and bakelite case. Bevel mounting.● Color : Black case and white scale plate.● Pointer Shape：Tube type, color in black or red
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Product
Switch Mode Power Supplies-Water Cooled
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The MSW Rectifiers are based on Switch Mode Technology. This reliable technology assures excellent quality DC currents with a ripple of < 3% and a control accuracy of less than 1%.The MS-Series features constant voltage and current control with easy, quick installation and maintenance. Modular versions easily increase the output by means of series or parallel connection. All models have DC short circuit protection. With forced air-cooled models, the cooling air quantity is controlled in relation to the load reducing contamination and noise levels.
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Product
Diode Tester
FEC VF40CM
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Frothingham Electronics Corporation
The VF40CM is intended for testing VF, HALF CYCLE SURGE, and THERMAL RESPONSE/RESISTANCE on small- and medium-power diodes and rectifiers. It can also measure THERMAL RESPONSE/RESISTANCE on NPN and PNP bipolar transistors using an external user-supplied VCB supply.The VF40CM also is sometimes used to measure VZ of low-voltage zener diodes up to the compliance voltage limit of the tester. 20V at 20A is possible.
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Product
S Series Panel Meter
ST-670B
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Standard Electric Works Co., Ltd
● DC up to 50A● AC up to 30A● Case and Composition: Acrylic resin front and Bakelite case. Four studs mounting.● Accuracy : Moving coil type：Class 2.0 Moving lron type：Class 2.5 Rectifier : Class 2.0● Color：Black case. white scale plate.● Pointer：Tube or knife-type, color in black or red.
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Product
M Series Panel Meters
ST-118
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Standard Electric Works Co., Ltd
● M Series all up to 15A● Case and Composition：Acrylic resin front and ABS resin case. Four studs mounting.● Accuracy：Moving coil type : Class 2.0 Rectifier type : Class 2.0● Color：Black case, white scale plate.● Pointer：Tube type, color in black or red.
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Product
230V / 36 Amp Load
EL08-230M
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For High Voltage UPS Battery Testing and Power Supply testing. This particular Load has been designed to operate with UPS Battery Systems and Telecom Rectifiers and Power Supplies with output Voltages in the range of 153V to 230V and is extremely cost effective.
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Product
M Series Panel Meters
ST-118T
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Standard Electric Works Co., Ltd
M Series all up to 15A. Case and Composition：Acrylic resin front and ABS resin case. Four studs mounting.Accuracy：Moving coil type : Class 2.0. Rectifier type : Class 2.0. Color：Black case, white scale plate. Pointer：Tube type, color in black or red.
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Product
Ultrafast Rectifiers
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The ST rectifier diode designs deliver performance for applications with very different VF/Qrr trade-offs depending on targeted functions. The minimal power losses of the ST rectifiers range is totally adapted to mains rectification, bypass, boost, bootstrap, freewheel and HF rectification functions. Inside these generic functions, the topology evolution in e.g. resonance or multilevel is followed constantly by suited designs. Ultrafast rectifiers are belonging to the STPOWER family.
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Product
SCR, Diodes & Assemblies
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SCR and Diodes are available as assemblies or discrete parts. Most assemblies are encapsulated. CEHCO stocks a variety of rectification products such as Diodes, SCR’s (silicon-controlled rectifiers), and Encapsulated Assemblies. We SCR and diodes replacement specialist. We specialize in obsolete and hard-to-find SCR and diode assemblies. We can offer an equivalent replacement for most obsolete rectification devices.
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Product
AC Hipot Test Set
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Weshine Electric Manufacturing Co., Ltd
AC Hipot Test Equipment for Dielectric Withstand Test are suitable for 50 / 60 Hz AC testing of low capacity test objects. Optionally, these units can also be upgraded to function as DC test sets by mounting the rectifier attachment on top of the transformer.Weshine® AC Hipot Test Set for AC hipot test can be equipped with a rectifier attachment for DC voltage testing.Typical application areas:Testing of cables Testing of switchgearTesting of transformersTesting of CP & PTTesting of MV systems
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Product
Custom DC to DC Converters
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CEHCO is manufacturer, re-seller, and distributor of Power Rectification products such as DC Rectifiers, Transformer Rectifier Assemblies, and Custom Power Supplies since 1945.
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Product
F Series Panel Meter
ST-70U (Three studs mounting)
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Standard Electric Works Co., Ltd
● Hz Meter : Measuring Ranges : 45~56 Hz, 45~55 Hz, 55~65 Hz Rated Voltage : 110V, 220V Accuracy : Class 2.0 Consumption : Max. 15mA Test Voltage : 2kV. 50-60 Hz● Case and Composition: Polycarbonate front and Polybutylene Terephthalate(PBT). Three studs mounting.● Accuracy : AC class 2.5 DC class 2.0 Rectifier class 2.0● Color：Black case and white scale plate.● Pointer：Sword type color in black.
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Product
Power Discrete Tester
Mostrak-2
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M2 test system has multiple test generators which cover static and dynamic test procedures. It is our first truly modular tester which allows for the system to be upgraded and expanded when needed. M2 are designed to get the tester as close as possible to the handler interface and operator at the highest possible speeds. M2 is capable of HV (3 kV) and LV (600A) testing and has dynamic switching capabilities up to 1200V. MOSTRAK systems can test the following device types: MOSFET, IGBT, Bipolar transistor, Diode - rectifiers, Thyristor (SCR) - Triac, Linear voltage regulator (VReg), Transient voltage suppressor (TVS).
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Product
AC/DC Power Supplies
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At ABSOPULSE Electronics, we specialize in the design and manufacture of heavy-duty custom and semi-custom AC-DC switching power supplies, rectifiers and battery chargers.We can meet any AC to DC input/output configuration requirement, with output power ranging from a few watts to several kilowatts.ABSOPULSE's rugged power supplies are typically designed and built for an operational life of 20 to 30 years in harsh environments.
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Product
Miller 400D
44550
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No need to select ranges or adjust dials – the Miller 400D provides a direct read-out of resistance with the push of a button• Bluetooth interface allows optional data-logging via a Bluetooth-enabled PC (or PDA)**• Rugged, hard plastic case - safe to use on wet ground – IP67 rating for dust and water intrusion• Resistance measurement range from 0.01Ω to 10MΩ (auto-ranging) • High resolution digital display• Resistance measurements are unaffected by any stray interference signals that may be present in the earth during readings, due to the use of narrow band-pass filters centered at 82.2Hz (the unit’s operating frequency)• Runs on a set of replaceable D-cell alkaline batteries...no need to periodically recharge the unit or to plug it into a power source• Performs 10,000 single readings on a fresh set of batteries• Integrates with Universal Rectifiers’ Soil Depth Selector/Multi-Pin Cable Harness System (please see Integration with Universal Rectifiers’ Cable Harness)
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Product
48V / 300 Amp Load
EL18-48M
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For Telecom Rectifier and Power Supply testing. This particular Load has been designed to operate with Telecom 48V Rectifiers and Power Supplies with output Voltages in the range of 38V to 60V and is extremely cost effective.
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Product
AC-DC Rectifier Unit
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Supreme Instrument Laboratories
Continuously variable/manually variable D.C. Rectifier unit to be used in the Electrical Engineering Laboratories, with the following technical specifications
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Product
Portable Current Supply 10 AMP output
CS-10
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The CS-10, Sure beats carrying around a rectifier and generator...
