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WRB7Z Smart Circuit Breaker
WRB7Z intelligent circuit breaker adopts the core circuit board independently developed and produced by our company, and integrates eight functional modules: main control, metering, storage, reclosing, tripping, location, temperature and communication; The new dual built-in power supply design scheme escorts the functional stability and performance improvement of the product.
Functional structure features
It supports up to 6KA super breaking current
It is designed with silver dynamic and static contacts
Support remote closing, opening, and leakage self-test.
It adopts high-grade arc extinguishing material structure
Over-under-voltage protection, leakage protection, over-temperature protection, and overload protection are realized according to the threshold
0.01s power-off protection in case of short circuit
Performance parameters

Main technical parameters:


Parameters and characteristics description
Rated operating current 6A~100A
Number of poles 1P+N/3P+N
Rated insulation voltage UI 500V
Depth of connection (effective contact surface) 15mm
Rated Operating Voltage (Uc) AC220/AC380V
Withstand voltage 2,000VAC for 1 min
Action process Remote control, can be long-distance opening and closing.
Rated to withstand impulse voltage Uimp 6kV
Insulation resistance The insulation resistance is not less than 5MΩ
Mechanical life 10000 times, 3 times/min
Electrical life 6000 times
Breaking capacity 6KA
Overload protection Electronic (non-double gold)
Overvoltage and undervoltage alarm and threshold protection Over-voltage protection range value: 255V~380V, under-voltage protection range value: 100V~180V, action time≤1S, over-voltage recovery value: 250±5V, under-voltage recovery value: 190±5V, all alarm values and opening thresholds can be set
Self-retest over-voltage protection The self-relieving over-voltage and under-voltage protection can be turned on or off by command
Leakage alarm and threshold protection 30mA~300mA adjustable, action less than 100ms
Overload alarm and threshold protection Soft adjustment of overload protection can be achieved by modifying the rated current value by command
Over-temperature alarm and threshold protection Protection range value: -40°C~120°C, detection accuracy meets ±10°C
power consumption Not more than 2W
Metrological accuracy Grade A or greater
Ingress protection IP20
Pollution level Level 2
Operating ambient temperature -25℃~+60℃
Store ambient air temperature -40℃~+70℃
Relative humidity of the air ≤90%(55℃)
Installation: It is installed with TH35mm standard mounting rails
Manual/automatic operation By turning [Manual/Auto] to automatic mode, you can control it remotely.
If you dial [Manual/Auto] to manual mode, you can manually open or close, and will not close automatically
Security padlocks When the opening state can be padlocked, the lock diameter is Φ4mm, and the product will not be closed after padlocking.
Power indicator Solid green: Normal operation in automatic stateFlashing green indicator: Normal operation in manual mode
Solid red indicator: Flashing red for device overvoltage and undervoltage alarm: Solid orange for device leakage alarm: Flashing orange for device overtemperature alarm: Alarm for device overload
Indicator light off: No power
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