TRSS-75

Type 3 AC Surge Protection Device TRSS-75

Main Features

Type: Type 3 / Class III / Class D
Nominal Voltage (Un): 230V
Maximum Continuous Operating Voltage (Uc): 255V
Nominal Load Current (IL): 25A
Voltage Protection Level (Up): ≤400V [1-2], ≤730V [1/2-PE]
Standard: IEC/EN 61643-11

TRSS-75 is a Type 3 AC surge protection device designed for final-stage protection of sensitive electrical equipment in low-voltage power systems. Compliant with IEC/EN 61643-11, this Class III SPD provides effective protection against transient overvoltages with a nominal voltage of 230V AC and a low voltage protection level.

The compact Type 3 SPD is suitable for installation near terminal equipment, including control systems, electronic devices, communication equipment, and other sensitive loads. Manufactured by THOR, it offers reliable surge protection performance for residential, commercial, and industrial electrical applications.

Applications

Terminal equipment protection
Control panels and automation systems
Residential, commercial, and industrial electrical systems
Sensitive electronic equipment
Low-voltage electrical installations
Final-stage surge protection after Type 1 or Type 2 SPDs

Parameter/Type	TRSS-75
SPD Classification	Type 3 / Class III / Class D
Nominal Voltage (Un)	230 V AC
Maximum Continuous Operating Voltage (Uc)	255 V AC
Nominal Load Current (IL)	25 A
Nominal Discharge Current (In, 8/20μs)	2 kA
Total Discharge Current (Itotal, 8/20μs) [1+2-PE]	4 kA
Open Circuit Voltage (Uoc, 1.2/50μs)	4 kV
Voltage Protection Level (Up) [1-2]	≤ 400 V
Voltage Protection Level (Up) [1/2-PE]	≤ 730 V

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.

Type 1+2 PV Surge Protective Device TRS8 1500v

Uocstc	1000v, 1250v
Ucpv	1200v, 1500
Iimp	5kA, 7kA

TRSW-N N-Type Coaxial Surge Arrester 50 Ohm Male to Female

Z0	50 Ohm
IL	≤0.3dB
Freq.	DC-2.5GHz
VSWR	<1.2

Type 2 DC Surge Protective Device TRS3-C40

Uocstc	110v, 24v, 48v, 75v
Ucpv	180v, 36v, 65v, 80v

Type 1+2 AC Surge Protective Device TRS30 B+C

Uc	275v
In	30kA
Imax	60kA
Iimp	4.5kA