Mersen STPT2-40K60V-2P Type 2 surge protection device with 40 kA Imax, 48 V AC nominal operating voltage, 60 V AC Uc, 2+0 TNS configuration and pluggable DIN rail design.
Original price was: £90.68.£67.01Current price is: £67.01.
The Mersen STPT2-40K60V-2P is a high-performance Type 2 surge protection device (SPD) designed to protect low-voltage electrical installations against transient overvoltages caused by lightning activity and electrical switching events. As part of the Mersen Surge-Trap® Pluggable STPT2 Series, it provides reliable surge protection for industrial, commercial and infrastructure electrical systems.
This surge protection device features a 40 kA maximum discharge current (Imax), 60 V AC maximum continuous operating voltage and a compact pluggable design for straightforward installation and maintenance. Its modular construction supports quick replacement of protection cartridges without disturbing the complete installation.
Designed for 48 V AC nominal systems with a 2+0 TNS configuration, the STPT2-40K60V-2P is suitable for protecting control circuits, signalling equipment, automation panels, telecommunications systems and low-voltage electrical infrastructure.
Type 2 surge protection devices are used within electrical distribution systems to reduce transient overvoltages before they reach sensitive connected equipment. This helps minimise electrical damage, improve system reliability and reduce unplanned downtime.
The Mersen STPT2 pluggable range is designed for practical panel installation, combining high surge discharge capability with replaceable modules and clear device status indication for simpler preventative maintenance.
| Phase | Single Phase |
|---|---|
| Manufacturer | Mersen |
| Series | Surge-Trap® Pluggable STPT2 Series - 40kA |
| Model | STPT2-40K60V-2P |
| Item number | 83020128 |
| Product type | Surge protection device |
| SPD type | Type 2 / Class II |
| Maximum discharge current | 40 kA Imax (8/20 μs) |
| Nominal operating voltage | 48 V AC |
| Maximum continuous operating voltage | 60 V AC |
| System configuration | 2+0 TNS |
| Protection mode | L-PE |
| Number of poles | 2 poles |
| Module width | 2 modules |
| Format | Pluggable |
| Mounting type | DIN rail |
| Short circuit withstand | 25 kA |
| Maximum back-up fuse | 125 A gG |
| RoHS compliant | Yes |
| EAN / UPC | 8435297851097 |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
It is used to protect low-voltage electrical installations and connected equipment against transient overvoltages caused by lightning activity and switching events.
The STPT2-40K60V-2P is a Type 2 / Class II surge protection device for electrical distribution and control systems.
This SPD has a 40 kA Imax maximum discharge current rating using an 8/20 μs waveform.
It is designed for 48 V AC nominal systems with a 60 V AC maximum continuous operating voltage.
The device is designed for DIN rail mounting and uses a pluggable modular format for straightforward installation and maintenance.
Mersen Surge-Trap® surge protection devices are trusted by panel builders, electrical contractors and maintenance engineers to protect critical low-voltage installations from damaging transient overvoltages.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...