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HF-WC-610 Single Phase Thermal Relay Test Set
This portable single phase thermal relay test set delivers long-term adjustable current from 0 to 200A or 2000A. It measures relay operating time, identifies contacts automatically and calibrates multiple relays in series, widely used for power, railway and petrochemical electrical testing.
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This tester is a new-generation testing instrument developed by our company based on user feedback nationwide and years of practical experience. It is mainly used for setting, calibration and verification of all types of thermal relays and motor protection devices. Featuring rational structural design, easy operation and large output power, it is widely applied in electrical test sites of power systems, railways, petrochemical, metallurgy, mining and other industrial enterprises.
Main Functions
- Capable of long-term continuous current output: 0 ~ 200 A or 0 ~ 2000 A
- Simultaneously measure the operating time of thermal relays and thermocouples
- Automatically identify normally open (NO) and normally closed (NC) contacts
- Calibrate multiple devices connected in series simultaneously to greatly improve work efficiency
Main Technical Specifications
- Input Power Supply: AC 120V ±10%, 60 Hz
- Rated Power Capacity: 3000 VA
- Meter Accuracy Class: 0.5 class (true RMS value)
- Output Current Range: 0 ~ 200 A, 0 ~ 2000 A
- Timing Range: 0 ~ 99999.999 seconds
- Net Weight: 12 kg
Operating Instructions
- Before connecting the power supply, turn off the power switch, and turn the current adjustment knob counterclockwise all the way back to the zero position.
- Connect AC 120V mains power to the input terminal. Then connect the terminals marked 50A, * and switching input terminals to the contacts of the relay under test via dedicated test leads.（Note: When testing normally open contacts, short-circuit the normally closed terminal with a test lead; otherwise the instrument cannot start up and testing will be unavailable.）
- After all wiring is completed, close the power switch and press the Start button. Slowly turn the current adjustment knob clockwise to output current from the current output terminals.（Note: When outputting current via the 50A/* terminal, shift the range switch to the 50A position.）
Packing List
| No. | Item Description | Quantity | Unit |
|---|---|---|---|
| 1 | Main Test Set Host | 1 | Set |
| 2 | Full Set of Test Cables & Test Clips | 1 | Set |
| 3 | English Operation Manual | 1 | Copy |
| 4 | Factory Calibration Certificate | 1 | Copy |
| 5 | Shockproof Portable Carrying Case | 1 | Piece |
FAQ: Single Phase Thermal Relay Test Set
Q1: What is this single phase thermal relay test set mainly used for?
A: It calibrates and verifies thermal relays and all kinds of motor protection devices. Widely adopted for electrical tests in power systems, railways, petrochemical, metallurgy and mining enterprises.
Q2: What current output ranges does this tester support?
A: It can continuously output adjustable current in two ranges: 0~200A and 0~2000A to meet different testing requirements.
Q3: What core functions does the instrument have?
A: It can test relay operating time, automatically distinguish NO/NC contacts, and calibrate several relays connected in series at once to improve working efficiency greatly.
Q4: What are the power supply and technical specifications?
A: Input power: AC 120V ±10%, 60Hz; rated power 3000VA; accuracy class 0.5 true RMS; timing range: 0 ~ 99999.999s; total weight 12kg.
Q5: Is there any key note before starting the test?
A: Turn off the power and reset current knob to zero before powering on. Short-circuit NC terminals when testing normally open contacts, otherwise the machine cannot start.
Q6: Is the equipment portable for outdoor field maintenance?
A: It weighs only 12kg with compact overall design, easy to carry to substations and industrial sites for on-site calibration work.
Q7: Can you provide OEM & customized services for bulk overseas orders?
A: Yes. We support customized operation language, logos and packaging for global distributors, wholesalers and EPC contractors.
Q8: What documents can you provide for export customs clearance?
A: We can offer commercial invoice, packing list, calibration certificate, English operation manual and other complete export documents as required.
Q9: How long is your product warranty period?
A: We provide 1-year global warranty for the whole machine, plus lifelong paid technical guidance and spare parts supply after expiration.
Q10: What’s the included standard packing accessories?
A: Main unit, complete test leads, English manual, calibration certificate and shockproof portable carrying case are all included in the standard package.
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