Page 472 - Din prodcuts 2020

5/28 ELECTRICAL INSTALL ATION SOLUTIONS FOR BUILDINGS 2CHC 420 001 C0201

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Protection and safety
OVR Type 2 surge protective devices for 57 V networks

Technical features
Types OVR T2 20-75 P OVR T2 2 20-75 P
with auxiliary contact (TS) OVR T2 20-75 P TS OVR T2 2 20-75 P TS
5
Technology Varistor Varistor
Electrical features
Standard IEC 61643-1/EN 61643-11 IEC 61643-1/EN 61643-11
Type/test class T2/II T2/II
Protected lines 1 2
Types of networks TT-TNS-TNC TT-TNS-TNC
Type of current AC - DC AC - DC
Nominal AC voltage Un [V] 57 57
Max. cont. operating AC voltage Uc [V] 75 75
Maximum discharge current Imax (8/20) [kA] 20 20
Nominal discharge current In (8/20) [kA] 5 5
Voltage protection level Up at In [kV] 0.3 0.3
Voltage protection level Up at 3 kA [kV] 0.25 0.25
TOV (Temporary overvoltage) withstand Ut [V] 75/- 75/-
(L-N: 5s/N-PE: 200ms)
Response time [ns] ≤ 25 ≤ 25
Residual current IPE [μA] ≤110 ≤10
Short-circuit withstand capability Isccr [kA] 50 50
Backup protection fuse (gG) [A] ≤ 16 ≤ 16
maximum rating circuit breaker [A] ≤ 16 ≤ 16
(B or C curve)
Pluggable cartridge Yes Yes
Integrated thermal disconnector Yes Yes
State indicator Yes Yes
Safety reserve No No
Auxiliary contact (TS) Yes (TS option) Yes (TS option)
Installation
Wire range (L, N, PE) solid wire [mm²] 2.5 … 25 2.5 … 25
stranded wire [mm²] 2.5 … 16 2.5 … 16
Stripping length (L, N, PE) [mm] 12.5 12.5
Tightening torque (L, N, PE) [Nm] 2.5 2.5
Auxiliary contact (TS)
Contact complement 1 NO - 1 NC 1 NO - 1 NC
Min. load 12 V DC - 10 mA 12 V DC - 10 mA
Max. load 250 V AC - 1 A 250 V AC - 1 A
Connection cross-section [mm²] 1.5 1.5
Miscellanous characteristics
Stocking and operating temperature [°C] -40 to +80 -40 to +80
Maximal Altitude [m] 5000 5000
Degree of protection IP 20 IP 20
Fire resistance according to UL 94 V-0 V-0
Dimensions
height x width x depth [mm] 88 x 17.8 x 65 88 x 35.6 x 65
[in] 3.46 x 0.7 x 2.56 3.46 x 1.4 x 2.56
Dimensions with auxilary contact (TS)
height x width x depth [mm] 96 x 17.8 x 65 96 x 35.6 x 65
[in] 3.78 x 0.7 x 2.56 3.78 x 1.4 x 2.56
Replacement Cartridges
Phase Product ID OVR T2 20-75 C OVR T2 20-75 C
2CTB803854R1400 2CTB803854R1400