This is Surge Protect Device SPD (LYD2-D) provided by China Factory Shanghai Langyi Electric Co., Ltd. from Shanghai, China.
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Surge Protect Device SPD (LYD2-D)

Surge Protect Device SPD (LYD2-D)'s photo
Description

1. 1-4 pole Pre-wired arrester blocks Simple installation via the marked terminals.

2. An extremely short response time, within 25ns.

3. No follow-up current can be registered after the surge has decayed.

4. The surge arrestor can easily be installed in any distribution box or switchgear cabinet by snap-fitting to any commercial 35 mm top-hat rail.

5. The multi-pole arresters are connected together by an earth bridge at the factory, so that there is only one earth (PE) connection to make on site.

6. Classes B, C, and D depending on their application area, accordingly to DIN VDE 0675-6.

Detail

Model: LYD2-D