Front view of Thor TRS-B80, a Type 1 AC surge protective device.

TRS-B80

Type 2 AC Surge Protective Device TRS-B80

Main Features

Nominal discharge current (8/20μs) In: 60kA
Maximum discharge current (8/20μs) Imax: 100kA
Network Systems: TN-S, TT
Mode of Protection: L-PE, N-PE
IEC/EN Category: Class II / Type 2
Protective Elements: High Energy MOV
Housing: Pluggable design
Application: Sub-Distribution Board
Compliance: EN 61643-11:2012, IEC 61643-11:2011/T2

The TRS-B80 is a high-capacity Type 2 Surge Protective Device (SPD) designed for robust protection in industrial and commercial AC power distribution systems. Utilizing high-performance Metal Oxide Varistor (MOV) technology, it delivers a 40 kA nominal discharge current and an impressive 80 kA maximum discharge capability (8/20µs), making it suitable for primary protection in sub-distribution boards exposed to medium-to-high surge risks.

The device provides an ultra-fast response time of less than 25 ns and maintains a low voltage protection level Up of ≤1.8kV, effectively safeguarding sensitive downstream equipment connected to 230 V AC networks. Its pluggable module design ensures quick, tool-free replacement during maintenance, while the visual red fault indicator provides an immediate and clear operational status. With a robust housing and standard DIN-rail mounting structure, the TRS-B80 integrates seamlessly into control panels and distribution boards.

Applications

Primary protection in industrial and large commercial sub-distribution boards.
Protection of critical equipment in areas with medium-to-high surge exposure.
AC distribution systems requiring high-capacity Type 2 SPD (80 kA $I_{max}$).
Installations demanding ultra-fast response time and low residual voltage protection.
Systems where convenient maintenance via pluggable modules is required.

Model	TRS-D10	TRS-D20	TRS-C40	TRS-B60	TRS-B80	TRS-B100
Nominal volatge (U_n)	230 V AC
Maximum operating voltage (U_c)	275 V AC
Nominal discharge current (8/20μs)(I_n)	5 kA	10 kA	20 kA	30 kA	40 kA	60 kA
Maximum discharge current (8/20μs) (I_max)	10 kA	20 kA	40 kA	60 kA	80 kA	100 kA
Voltage protection level (U_p)	≤ 0,7 kV	≤ 1,0 kV	≤ 1,3 kV	≤ 1,5 kV	≤ 1,8 kV	≤ 2,0 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
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 / T2
Remarks	Other Uc can be customized.(420V AC, 385V AC, 320V AC, etc.)

Rotate the 3D model to inspect the surge protective device from different angles. For detailed technical specifications, electrical ratings and installation information, please refer to the other tabs.