Overview: The document describes the FB50B/4 series, a three-phase surge filter with a metal box design. It includes optional features such as remote control contacts and a lightning and surge counter function. The device is equipped with overload short-circuit protection via an MCB and an LED failure indicator.
Specifications:- Model Numbers: FB50B/4-150S, FB50B/4-255S, FB50B/4-275S, FB50B/4-320S, FB50B/4-385S
- Test Class: IEC/EN/VDE Class I/B
- Protection Mode: L1, L2, L3, N - PE
- Nominal Voltage: 110/220V~ to 220/380V~ at 50(60)Hz
- Rated Voltage (UC): 150V~ to 385V~
- Impulse Current (Iimp): 50kA
- Nominal Discharge Current (In): 50kA
- Voltage Protective Level (Up): ≤1.8kV to ≤2.0kV
- Response Time (tA): ≤100ns
- Recommended Back-up Fuse: 500A
- Isolation Resistance: >10 MΩ
- I/O Connections: L-N: 10mm ~25mm multi-core wire, PE: >16mm multi-core wire
- Mounting: Bolting
- Operating Temperature Range: -40℃ to +80℃
- Humidity: 30% to 90%
- Altitude: Up to 3000m
- Degree of Protection: IP20
- Housing Material: Metal Plate
- Disconnection Indicator: Mechanical indicator (Green: OK, Red: Fail)
- Remote Control Contact: Optional
Key Features:- Three-phase surge filter with metal housing.
- Optional remote control and surge counter functions.
- Overload and short-circuit protection with MCB.
- LED failure indicator for easy status monitoring.
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