Type 2 AC Surge Protective Device TRS4-D40
Main Features
- Nominal discharge current (8/20μs) In: 20kA
- Maximum discharge current (8/20μs) Imax: 40kA
- 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 TRS4-C40 is a robust Type 2 surge arrester engineered for installations needing high-capacity transient protection.
Delivering 20 kA nominal and 40 kA maximum discharge capability, it is suitable for commercial and industrial sites subject to elevated surge energy, long cable runs, or frequent switching operations.
Its pluggable module structure enables efficient on-site replacement, reducing system downtime. The bright red fault window provides clear visual alert when replacement is necessary.
With a low protection level and rapid response time, the TRS4-C40 helps safeguard sensitive loads such as automation controllers, industrial machinery, and electronic equipment.
Applications
Industrial AC distribution networks
Commercial buildings with extensive cabling or outdoor feeders
Protection of mission-critical or sensitive electrical loads
Facilities with frequent switching transients or unstable grid co
| Parameter/Type | TRS4-D10 | TRS4-D20 | TRS4-C40 | TRS4-B60 |
| Nominal volatge Un | 230 V AC | |||
| Maximum operating voltage Uc | 275 V AC | |||
| Nominal discharge current (8/20μs) In | 5 kA | 10 kA | 20 kA | 30 kA |
| Maximum discharge current (8/20μs) Imax | 10 kA | 20 kA | 40 kA | 60 kA |
| Voltage protection level Up | ≤ 0,7 kV | ≤ 1,0 kV | ≤ 1,3 kV | ≤ 1,5 kV |
| Response time ta | < 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 / T2 | |||
| Remarks | Other Uc can be customized.(420V AC, 385V AC, 320V AC, et | |||



Related Products
| Uocstc | 1000v, 1250v |
|---|---|
| Ucpv | 1200v, 1500 |
| Iimp | 5kA, 7kA |
| Z0 | 50 Ohm |
|---|---|
| IL | ≤0.3dB |
| Freq. | DC-2.5GHz |
| VSWR | <1.2 |
| Uocstc | 110v, 24v, 48v, 75v |
|---|---|
| Ucpv | 180v, 36v, 65v, 80v |



