Page 502 - Din prodcuts 2020

5/58 ELECTRICAL INSTALL ATION SOLUTIONS FOR BUILDINGS 2CHC 420 001 C0201

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Protection and safety
OVR Type T2-T3 QuickSafe® surge protective devices
TNS/TT - 230 V 1Ph+N networks

Technical features
Types OVR T2-T3 1N 20-275 P QS
with auxiliary contact (TS) OVR T2-T3 1N 20-275 P TS QS
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Electrical features
Standard IEC 61643-11/EN 61643-11
Type/test class T2-T3/II-III
Protected lines 1+1
System network TT - TNS
Type of current AC 47-63 Hz
Voltage regulation of the system network ± 20 %
Nominal system voltage Un [V] 230
Max. cont. operating voltage Uc [V] 275
Maximum discharge current Imax (8/20) [kA] 20
Nominal discharge current In (8/20) [kA] 5
Total Current [kA] 40
Voltage protection level Up at In (L-N/N-PE/L-PE) [kV] 0.9/1.4/1.4
Voltage protection level Ures at 3kA (L-N/N-PE /L-PE) [kV] 0.8/1.4/0.85
Voltage protection level Ures at 5kA(L-N/N-PE /L-PE) [kV] 0.85/1.4/0.95
Voltage protection level Ures at 10kA (L-N/N-PE /L-PE) [kV] 1/1.4/1.15
TOV (Temporary overvoltage) withstand Ut (L-N: 5s./N-PE: [V] 337/1200
200ms)
Uoc [kV] 6
Response time [ns] ≤ 25
Residual current IPE [µA] ≤ 10
Short-circuit withstand capability Isccr [kA] 100
Backup protection maximum fuse (gG) [A] ≤ 125
rating circuit breaker (B or C curve) [A] ≤ 125
Pluggable cartridge Yes
Integrated QuickSafe® technology Yes
State indicator Yes
Safety reserve No
Auxiliary contact Yes (TS option)
Installation
Wire range (L, N, PE) solid wire [mm²] 2.5 ... 35
stranded wire [mm²] 2.5 ... 25
Stripping length (L, N, PE) [mm] 12.5
Tightening torque (L, N, PE) [Nm] 2.8
Auxiliary contact (TS)
Contacts information 1 NO - 1 NC
Min. load 12 DC - 10 mA
Max. load 250 V AC - 1A
Connection cross-section [mm²] 1.5
Miscellanous characteristics
Stocking and operating temperature [°C] -40 to +80
Maximal Altitude [m] 5000
Degree of protection IP 20
Fire resistance according to UL 94 V0