Mersen 83230503 STMT23-6K150V-SP-SM Type 2+3 slim monobloc surge protection device with 6 kA discharge capacity, 150 V AC maximum continuous operating voltage, SP TT/TNS configuration and remote indication.
£82.51
The Mersen 83230503 is a compact Type 2+3 Surge Protection Device (SPD) designed to protect low voltage AC and DC electrical installations against transient overvoltages. Part of the Mersen Surge-Trap® Monobloc STMT23 Series, this slim SPD provides reliable protection for sensitive control, communication and power supply equipment where DIN rail space is limited.
Designed for DIN rail installation, this monobloc surge protection device helps protect connected equipment against voltage spikes caused by lightning activity, switching operations and electrical disturbances. Its slim one-module construction makes it suitable for compact control panels, machinery cabinets and distribution boards.
With a maximum discharge current of 6 kA (8/20 μs), a 150 V AC maximum continuous operating voltage (Uc) and remote indication, the Mersen 83230503 is ideal for protecting 120 V AC circuits and sensitive electrical systems requiring fine surge protection with remote status monitoring.
Surge protection devices safely divert transient overvoltages away from connected equipment before they can cause electronic damage, insulation failure or unplanned downtime. Compact Type 2+3 devices are especially useful where fine protection is required close to sensitive electrical equipment.
The Mersen Surge-Trap® Monobloc STMT23 Series is suitable for AC and corresponding DC voltage applications, making it ideal for control circuits, power supplies, communication systems, instrumentation and compact electrical panels.
| Voltage | 120 V |
|---|---|
| Phase | Single Phase |
| Manufacturer | Mersen |
| Series | Surge-Trap® Monobloc STMT23 Series |
| Model | STMT23-6K150V-SP-SM |
| SKU | 83230503 |
| Product type | Surge Protection Device (SPD) |
| SPD classification | Type 2+3 / Class II+III |
| Maximum discharge current (Imax) | 6 kA (8/20 μs) |
| Nominal discharge current (In) | 3 kA |
| Nominal operating voltage (Un) | 120 V AC |
| Maximum continuous operating voltage (Uc) | 150 V AC |
| System configuration | SP TT/TNS |
| Network type | 1 phase + neutral |
| Number of poles | 2 |
| Number of modules | 1 |
| Format | Slim monobloc |
| Mounting type | DIN rail |
| Remote indication | Yes |
| Protection rating | IP20 |
| Response time | 25 ns |
| Standards | IEC 61643-11, EN 61643-11, UL 1449 |
| EAN/UPC | 8435297850502 |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
It is used to protect sensitive low voltage electrical equipment from transient overvoltages caused by lightning activity, switching events and electrical disturbances.
The Mersen 83230503 is a Type 2+3 / Class II+III surge protection device.
The device provides a maximum discharge current of 6 kA (8/20 μs) with a nominal discharge current of 3 kA.
Yes. The device includes remote indication, allowing its status to be monitored from a control panel or monitoring system.
It features a slim one-module monobloc DIN rail design, making it ideal for compact electrical panels and control cabinets.
Mersen Surge-Trap® surge protection devices are trusted by electrical engineers, panel builders and maintenance professionals to protect sensitive electrical systems from damaging transient overvoltages.
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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...