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Refurbished Rectifiers
CEHCO has a large inventory of used and refurbished rectifiers in stock. All include 3 month part warranty.
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SCR Rectifiers
SCR-controlled rectifiers are electronically controlled via analog signals for constant voltage and current control. The compact and service-friendly design complies with high industrial requirements and guarantees excellent operational reliability.The input voltage can be from 208 VAC to 600 VAC, 3 PH, 50/60 Hz. Maximum output voltage can be from 6 VDC to 600 VDC. Maximum output can be from 1000 Amps to 100000 Amps. These units can be air cooled, water cooled or oil cooled.
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Replacement Selenium Rectifiers
Selenium rectifier stacks are made up of selenium cells, which are mounted together and circuited as required for each application. They are available in configurations to suit all of the rectifier circuits.
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M Series Panel Meters
ST-66
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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Bridge Rectifier Diodes
ST’s portfolio of bridge rectifier diodes is intended for primary bridges. In input primary bridge applications, ST's 1200V bridge diodes achieve very low conduction losses thanks to very low forward voltage characteristics. They can operate at up to +175 °C junction temperature, as a result of reduced leakage currents. Bridge rectifier diodes are belonging to the STPOWER family.
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High Voltage EMC Surge Generator
TM510
TM510 Surge Generator is mainly used for testing power cable high-resistance and arc-over fault whose grade range is 0-10kV, co-operating with cable fault tester and locating devices to test and locate faults. If the user choose the professional digital milli-ampere-meter, as for cable with grade range about 0- 6kV, the instrument can also be used to do DC&voltage resistance test and current leakage test after the fault is repaired. The instrument is internally equipped with voltage-rise rectifying and discharging device, has complete functions, and is also convenient and safe to be wired and operated.
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Profiling Systems
ICK profiling systems measure, detect, classify, count, and check vehicles in 3D. They determine the number of axles on heavy goods trucks for vehicle classification and measure vehicle dimensions to rectify loading errors. The systems recognize overheated vehicles approaching tunnels and other entrances and activate diversions. They also monitor external train contours. If a limit value is exceeded, the system triggers an alarm. All this contributes to safety on roads and railroads.
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SparkFun Energy Harvester Breakout
LTC3588
This breakout board uses the LTC3588 Piezoelectric Energy Harvester from Linear Technologies. This board can be used not only for harvesting piezoelectric energy, but solar energy as well. There is a bridge rectified input for piezo elements (PZ1 and PZ2) and a direct input (VIN) for DC sources. Both are clamped to 20V. In addition, the board can simply be used as a standalone nanopower buck regulator.
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Portable System for High-Boltage Solid Dielectrics Testing
HVTS-70/50
Portable system HVTS-70/50 is designed for carrying out high-voltage withstand testing of cable insulation and other solid dielectrics with DC (rectified) voltage up to 70 kV and AC voltage up to 50 kV RMS at industrial frequency (f = 50 Hz).
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Rectifier/Modular PSUs
The rectifier families are housed in either 19" racks or provided as compact modules. The rack mounting rectifiers are aimed at telecoms applications. This range of robust rectifiers start at 250W and have a life time of more than 8 years and an MTBF of over 50 years. For even greater security these hot swap modules can be configured to provide a redundant DC output. Up to 2 additional AC inputs with automatic switchover are provided on a number of these telecoms rectifiers.
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Cable Test Van
ETL-10M
ETL-10M is a cable test van with three-phase connection designed for testing cable insulation with DC (rectified) voltage up to 60 kV and testing other electrical objects with up to 50 kV AC voltage of industrial frequency.
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Thyristors (SCR)
Featuring immunity to surges and transients in static states and commutations, our silicon-controlled rectifiers (SCR), also known as thyristors, are ideal for single- and three-phase power line networks, even in harsh environments up to 150°C. Thyristors (SCR) belong to our STPOWER family.
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M Series Panel Meters
ST-86
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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Regenerative AC load function
61800 Series Optional Function
The regenerative AC load function consists of various modes such as CC Rectified mode, CP Rectified mode, CR mode, CC Phase lead/lag mode and CP Phase lead/ lag mode. The Rectified Mode is capable of simulating non-linear rectified loads with characteristics similar to Chroma 63800 series AC load where the voltage and current operate at the 1st and 3rd quadrant. The Rectified Mode supports both CC and CP functions with current, power and CF as parameter settings.
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Battery Charger Meters
A range of ammeters and voltmeters with tough moving magnet or polarised moving iron movements designed for low cost indication of d.c. or rectified a.c.
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M Series Panel Meters
ST-115
Standard Electric Works Co., Ltd
● M Series all up to 15A● Case and Composition：Acrylic resin front and ABS resin case. Four studs mounting. Two 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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Earth Ground Meters
The earth tester determines ground resistance for both specific and ohm resistances. The earth tester is powered by batteries and have a clock timer function (3 minutes), Data-Hold function, a 3 ½ positions LCD display and their dimensions are 163 x 100 x 50 mm. Resistance ranges come from 20, 200 to 2000 ohms. They have a resolution of 10 / 100 mΩ / 1 Ω. The earth tester measure resistance by means of a constant reverse current (approx. 800 Hz, 2 mA). To measure ground voltage a rectifier is used (5 kΩ/V aprox. 40...500 Hz). The earth tester PKT-2630 series have a small format as well as multiple functions.
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P Series Panel Meters
ST-60
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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40kw High Efficiency AC/DC Power Supply Charger 100-750VDC Charging Rectifier 100A Battery Charger
SD750100G
Zhejiang Sandi Electric Co., Ltd
40kw High Efficiency AC/DC Power Supply Charger 100-750VDC Charging Rectifier 100A Battery Charger is for DC battery system charging station. With three-phase non neutral conductor AC input, it has the advantages of high efficiency, high power density and low harmonic. 50-500Vdc output voltage range optional, suitable for all types of batteries.
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High Voltage Power Supplies
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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F Series Panel Meter
ST-123U
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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Stationary Industrial And Railway Power Supply
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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Delta DC Rectifier Repair/Refurbishment
Delta DC Rectifiers are used by original equipment manufacturers to build On-Site Sodium Hypochlorite Generator Systems. These power supplies are generally operated at full load for 24/7 operations at high temperatures. Hence, these power supplies must be extremely rugged and must be de-rated significantly to achieve long operating life.
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Online UPS
BOXER SERIES 10 - 120 kVA
Equipped with its new IGBT rectifier Boxer series keeps your critical loads protected while its space-saving compact design and front access for maintenance successfully reduce mean time to repair (MTTR).
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Hall Effect Proximity Switches/Sensors
ChenYang Technologies GmbH & Co. KG
A Hall Effect proximity switch is a non-contact electronic switch, which consist of a permanent magnet or ferromagnetic part as trigger intermediary and a Hall Effect sensor IC. The Hall sensor IC detects the change of the magnet field when the permanent magnet comes in the close proximity to it and generates an electric signal. This signal is amplified and rectified to control the output signal of the switch.
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Rectifier Diodes
Chip Diodes from Bourns has emerged that offers the capability to provide a silicon diode with minimal packaging overhead. The small signal 0603, 1005 and 1206 Chip Diodes are lead free with Cu/Ni/Au plated terminations while the other packages (SMA, SMB, SMC, 1408, 1607, 2010, 2419, 8L NSOIC, 16L NSOIC, SOT23, SOT23-6, 16L WSOIC) use 100% Tin terminations. All Bourns® diodes are compatible with lead free manufacturing processes, conforming to many industry and government regulations on lead free components.
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F Series Panel Meter
ST-70U (Three studs mounting)
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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Selenium Voltage Doubler Rectifier P/N 6063C
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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Analog Power Supply
Type NPS-2412
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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150KW AC/DC Rectifier Battery Charger
SD750250G
Zhejiang Sandi Electric Co., Ltd
AC-DC Power Rectifier Battery Charger Customized for Lead Acid AGM Gel LiFePO4 Lithium Battery is for DC battery system charging station. With single-phase or 3 phase non neutral conductor AC input, it has the advantages of high efficiency, high power density and low harmonic. 50-750Vdc output voltage range optional, suitable for all types of batteries.
