ABB 2CTB803973R1200 OVR T2 3N 20-275 P QS

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Type of Low Voltage Distribution System:
TT
TN-S

Suitable For:
To protect the systems against the transient overvoltage (lightning)

Rated Voltage (Ur):
400 V AC

Nominal AC Voltage of the System (Uo):
230 / 400 V

Voltage Rating DC:
350 V

Voltage Protection Level ( Up):
1.4 kV
(L-N) 1.8 kV
(N-PE) 1.4 kV

Maximum Continuous Operating Voltage (Uc):
(L-PE) 275 V

Temporary Overvoltage Test Value (UT):
(L-N) 337 V
(N-PE) 1200 V

Rated Service Short-Circuit Breaking Capacity (Ics):
100 kA

Discharge Current:
Nominal (8 / 20 µs) 5 kA
I (max, 8 / 20 µs) 5 kA

Impulse Current:
I (imp, 10 / 350 µs) 2 kA

Short Circuit Withstand Icc:
100 kA

Power Loss:
29 mW