Page 474 - Din prodcuts 2020

5/30 ELECTRICAL INSTALL ATION SOLUTIONS FOR BUILDINGS 2CHC 420 001 C0201

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Protection and safety
OVR Type 2 surge protective devices non pluggable

Technical features
Types OVR T2 20-275 OVR T2 40-275
with auxiliary contact (TS) - -
5
Technology Varistor Varistor
Electrical features
Standard IEC 61643-11/EN 61643-11 IEC 61643-11/EN 61643-11
Type/test class T2/II T2/II
Protected lines 1 1
Types of networks TT(L-N)-TNS-TNC TT(L-N)-TNS-TNC
Type of current AC 47-63 Hz AC 47-63 Hz
Voltage regulation of the system network ± 20 % ± 20 %
Nominal AC voltage Un [V] 230 230
Max. cont. operating AC voltage Uc [V] 275 275
Maximum discharge current Imax (8/20) [kA] 20 40
Nominal discharge current In (8/20) [kA] 5 20
Voltage protection level Up at In [kV] 1 1.4
Voltage protection level Up at 3 kA [kV] 0.9 0.9
TOV (Temporary overvoltage) withstand Ut [V] 337/- 337/-
(L-N: 5s/N-PE: 200ms)
Response time [ns] ≤ 25 ≤ 25
Residual current IPE [μA] ≤110 ≤110
Short-circuit withstand capability Isccr [kA] 50 50
Backup protection fuse (gG) [A] ≤ 50 ≤ 50
maximum rating circuit breaker [A] ≤ 50 ≤ 50
(B or C curve)
Pluggable cartridge No No
Integrated thermal disconnector Yes Yes
State indicator Yes Yes
Safety reserve No No
Auxiliary contact (TS) No No
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] 12.2 12.2
Tightening torque (L, N, PE) [Nm] 2.5 2.5
Auxiliary contact (TS)
Contact complement – –
Min. load – –
Max. load – –
Connection cross-section [mm²] – –
Miscellanous characteristics
Stocking and operating temperature [°C] -40 to +80 -40 to +80
Maximal Altitude [m] 2000 2000
Degree of protection IP 20 IP 20
Fire resistance according to UL 94 V-0 V-0
Dimensions
height x width x depth [mm] 85 x 17.8 x 64.8 85 x 17.8 x 64.8
[in] 3.35 x 0.70 x 2.55 3.35 x 0.70 x 2.55