Page 469 - Din prodcuts 2020

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Protection and safety
OVR Type 1+2 surge protective devices TNS/TT 400 V 1Ph+N and 3Ph+N networks

Technical features
Type codes OVR T1-T2 1N 12.5-440s P QS OVR T1-T2 3N 12.5-440s P QS OVR T1-T2 4L 12.5-440s P QS
with auxiliary contact (TS) OVR T1-T2 1N 12.5-440s P TS QS OVR T1-T2 3N 12.5-440s P TS QS OVR T1-T2 4L 12.5-440s P TS QS 5
Technology Varistor + GDT Varistor + GDT Varistor
Electrical features
Standard IEC 61643-11/EN 61643-11 IEC 61643-11/EN 61643-11 IEC 61643-11/EN 61643-11
Type/test class T1-T2/I - II T1-T2/I - II T1-T2/I - II
Protected lines 1+1 3+1 4
System network TT- TNS TT- TNS TNS
Type of current AC 47-63 Hz AC 47-63 Hz AC 47-63 Hz
Voltage regulation of the system network ± 10 % ± 10 % ± 10 %
Nominal system voltage Un [V] 400 400/690 400/690
Max. cont. operating voltage Uc [V] 440 440 440
Maximum impulse current Iimp (10/350) [kA] 12.5 12.5 12.5
Max.Imp current Tot Iimp (10/350) [kA] 25 50 50
Nominal discharge current In (8/20) [kA] 20 20 20
Maximal discharge current Imax (8/20) kA [kA] 80 80 80
Follow current interrupting rating Ifi [kA]
Voltage protection level Up at In (L-N/N-PE/L-PE) [kV] 1.9/1.9/2 1.9/1.9/2 3.8/1.9/1.9
Voltage protection level Ures at 3 kA [kV] 0.8 0.8 0.8
TOV (Temporary overvoltage) withstand Ut [V] 581/1200 581/1200 581/
(L-N: 5s./N-PE: 200ms)
Response time [ns] ≤ 25 ≤ 25 ≤ 25
Short-circuit withstand capability Isccr [kA] 100 100 100
Backup protection fuse (gG) [A] ≤ 160 ≤ 160 ≤ 160
maximum rating circuit breaker [A] ≤ 125 ≤ 125 ≤ 125
(B or C curve)
Pluggable cartridge Yes Yes Yes
Integrated thermal disconnector Yes Yes Yes
State indicator Yes Yes Yes
Safety reserve Yes Yes Yes
Auxiliary contact Yes (TS option) Yes (TS option) Yes (TS option)
Installation
Wire range (L, N, PE) solid wire [mm²] 2.5 … 35 2.5 … 35 2.5 … 35
stranded wire [mm²] 2.5 … 25 2.5 … 25 2.5 … 25
Stripping length (L, N, PE) [mm] 12.5 12.5 12.5
Tightening torque (L, N, PE) [Nm] 2.8 2.8 2.8
Auxiliary contact (TS)
Contacts information 1 NO - 1 NC 1 NO - 1 NC 1 NO - 1 NC
Min. load 12 V DC - 10 mA 12 V DC - 10 mA 12 V DC - 10 mA
Max. load 250 V AC - 1 A 250 V AC - 1 A 250 V AC - 1 A
Connection cross-section [mm²] 1.5 1.5 1.5
Miscellaneous characteristics
Stocking and operating temperature [°C] -40 to +80 -40 to +80 -40 to +80
Maximal Altitude [m] 5000 5000 5000
Degree of protection IP20 - Indoor IP20 - Indoor IP20 - Indoor
Fire resistance according to UL 94 V-0 V-0 V-0
Dimensions
height x width x depth [mm] 88 x 53.4 x 76.7 88 x 124.6 x 76.7 88 x 142.4 x 76.7
[in] 3.46 x 2.1 x 3.02 3.46 x 4.91 x 3.02 3.46 x 5.61 x 3.02
Dimensions with auxiliary contact (TS)
height x width x depth [mm] 95.8 x 53.4 x 76.7 95.8 x 124.6 x 76.7 95.8 x 142.4 x 76.7
[in] 3.77 x 2.1 x 3.02 3.77 x 4.91 x 3.02 3.77 x 5.61 x 3.02
Replacement Cartridges
Phase Product ID OVR T1-T2 12.5-440s C QS OVR T1-T2 12.5-440s C QS OVR T1-T2 12.5-440s C QS
2CTB815710R5500 2CTB815710R5500 2CTB815710R5500
Neutral Product ID OVR T1-T2 N 50-440s C QS OVR T1-T2 N 50-440s C QS
2CTB815710R5600 2CTB815710R5600