AC Surge Protective Device T2 SLP40 series
Transient and power frequency overvoltage protection
Surge protection devices (SPD) Electrical power supply networks to IEC/EN (DIN rail)
Type 2 / Class C / Class II for use in AC power supply systems
Surge protection portfolio includes solutions for protecting systems up to 1,000 V a.c. against surges caused by atmospheric discharge and switching operations.
- – Type 2
- – AC network configuration (Single/3-Phase)
- – Discharge currents (Iimp, Imax, In)
- – Protection technology (varistors, GDT)
- – Features (plug-in, remote signaling, compact)
The AC Surge Protective Devices T2 SLP40 line is a group of Class II Surge Protective Devices. They are intended as a protection against transient overvoltage caused by fast switching operations or indirect hits of lightning strokes (residuum effects).
It is recommended to install Class II SPDs every 10 – 20 meters of cable length repetitively, typically to main and sub-distribution boards. The SLP40-440 are designed for direct coordination with Class I SPDs of line FLP25. In case of SLP40-275, the coordination with the line FLP25 is done by means of 10 m cable length.
The design of SLP40 is based on Metal Oxide Varistors. Such a design provides a very low response time. The modular design with plug-in inserts allows simple and quick replacement of function modules in case of MOV is beyond if its lifespan due to often occurrence of overvoltage peaks.