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BR-25M 3+1 Type 1 25kA Surge Arrester For TT And TNS

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Description

Product characteristics:

Specification BR-25M 150 3+1 BR-25M 275 3+1 BR-25M 320 3+1
SPD classification according to EN61643-11 Type 1 + 2 + 3 Type 1 + 2 + 3 Type 1 + 2 + 3
SPD classification according to IEC61643-11 Class I + II + III Class I + II + III Class I + II + III
Nominal operating voltage Un 120V/240V(50/60Hz) 230V/400V(50/60Hz) 250V/440V(50/60Hz)
Max. continuous operating a.c. voltage Uc (L-N/N-PE) 150V/255V(50/60Hz) 275V/255V(50/60Hz) 320V/255V(50/60Hz)
Lightning impulse current (10/350μs) Iimp (L-N/N-PE) 25kA/100kA 25kA/100kA 25kA/100kA
Total discharge current (10/350μs) Itotal 100kA 100kA 100kA
Nominal discharge current (8/20μs) In (L-N/N-PE) 25kA/100kA 25kA/100kA 25kA/100kA
Max. discharge current (8/20μs) Imax (L-N/N-PE) 120kA/200kA 120kA/200kA 120kA/200kA
Quantity of electric charge (L-N, N-PE) Q 12.5As, 50As 12.5As, 50As 12.5As, 50As
Specific energy (L-N, N-PE) W/R 156kJ/Ω, 2500kJ/Ω 156kJ/Ω, 2500kJ/Ω 156kJ/Ω, 2500kJ/Ω
Voltage protection level Up (L-N/N-PE) ≤0.8kV/≤1.5kV ≤1.3kV/≤1.5kV ≤1.3kV/≤1.5kV
Short-circuit current rating a.c. Isccr (L-N/N-PE) 25kA rms/100A rms 25kA rms/100A rms 25kA rms/100A rms
Max. backup fuse 200A gG 200A gG 200A gG
Temporary overvoltage TOV-withstand UT(L-N) 175V/5sec. 335V/5sec. 350V/5sec.
Temporary overvoltage TOV-safe failure UT(L-N) 250V/120min. 440V/120min. 550V/120min.
Temporary overvoltage TOV-withstand UT(N-PE) 1200V/200ms 1200V/200ms 1200V/200ms
Leakage current Ipe <2mA <2mA <2mA
Response time tA ≤25ns/≤100ns ≤25ns/≤100ns ≤25ns/≤100ns
Operating temperature range Tu -40℃-80℃ -40℃-80℃ -40℃-80℃
Cross-section area (Min.) 4mm² 4mm² 4mm²
Cross-section area (Max.) 35mm² 35mm² 35mm²
For mounting on 35mm Din rail
Enclosure material Thermoplastic UL94-V0
Degree of protection IP20 IP20 IP20
Order Code B17208 B18163 B17221
Order Code (With remote signaling) B17209 B18164 B17222

Features:

The surge arrestors BR-25M meet the Class I and Class II requirement class according to IEC 61643-11.

Labeled connections.

Electrical surge protector work by diverting the extra energy in the electrical surge away from the main circuit, usually to “earth”.

Surge protection devices (SPD) which is connected at the main distribution board is constantly monitoring the supply voltage.

Application:

These devices protect low-voltage consumer systems from overvoltage.

Applied in Class I + Class II (Class B + C) for TT and TN-S power supply system.
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