TRS8 B+C

Type 1+2 Surge Protective Device TRS8 B+C

Main Features

Lightning impulse current(10/350 μs) Iimp: 12.5kA
Nominal discharge current (8/20μs) In: 30kA
Maximum discharge current (8/20μs) Imax: 60kA
Network Systems: TN-S, TT, TN-C-S
Mode of Protection: L-PE, N-PE
IEC/EN Category: Type 1+2 / Class I+II / Class B+C
Protective Elements: High Energy MOV and GDT
Housing: Pluggable design
Application: Sub-Distribution Board
Compliance: EN 61643-11:2012, IEC 61643-11:2011/T2

The TRS8-B+C is a combined Type 1+2 AC Surge Protective Device(SPD) designed to provide both lightning current protection and surge protection in low-voltage power distribution systems. Using a hybrid MOV + GDT (gas discharge tube) architecture, it offers high discharge capability and excellent voltage protection for residential, commercial, and industrial electrical installations.

With a 12.5 kA (10/350 µs) lightning impulse current, 30 kA nominal discharge current (8/20 µs), and 60 kA maximum discharge current, the TRS8-B+C is suitable for installations exposed to direct lightning energy as well as switching transients. Its low protection level (Up ≤ 1.5 kV) ensures effective limitation of overvoltages to safeguard downstream electrical equipment.

The device includes visual fault indication and supports optional remote signaling via potential-free changeover contacts, enabling monitoring through building management or control systems. Designed for DIN rail mounting, it is ideal for main distribution boards or sub-distribution panels.

Applications

Main and sub-distribution boards
Residential, commercial, and industrial electrical systems
Buildings with or without external LPS
Incoming power supply protection
Areas with moderate lightning exposure
Systems requiring monitoring via remote signaling

Model	TRS8-B+C
Nominal volatge (U_n)	230 V AC
Maximum operating voltage (U_c)	275 V AC
Lightning impulse current (10/350 μs) (I_imp)	12,5 kA
Nominal discharge current (8/20μs) (I_n)	30 kA
Maximum discharge current (8/20μs) (I_max)	60 kA
Voltage protection level (U_p)	≤ 1,5 kV
Response time( t_a)	< 25ns
Cross-section of connected conductors solid (min/max)	16 mm² / 35 mm²
Cross-section of connected conductors stranded (min/max)	16 mm² / 35 mm²
Fault indication	red indication field
Remote indication	potential-free change-over contact
Remote indication contacts	250 V / 0,5 A AC, 250 V / 0,1 A DC
Cross-section of remote indication conductors	1,5 mm²
Degree of protection	IP20
Range of operating temperatures (min/max)	-40℃~+70℃
Humidity range	5%~95%
Mounting	DIN rail 35 mm
According to standard	EN 61643-11:2012, IEC 61643-11:2011 / T1+T2
Remarks	Other Uc can be customized.(420V AC, 385V AC, 320V AC, etc.)