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Mersen Surge Protector Type 2+3 SPD 2 Pole 120 Volt 3KA TT/TNS Remote Indication
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.
£61.88
Why Choose the Mersen 83230503 Surge Protection Device?
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.
Key Advantages
- Compact Type 2+3 surge protection device for sensitive low voltage equipment.
- 6 kA maximum discharge current for effective transient overvoltage protection.
- 150 V AC maximum continuous operating voltage for 120 V AC systems.
- Remote indication contact for convenient status monitoring.
- Slim monobloc design ideal for limited DIN rail space.
- Suitable for controls, power supplies, communications and instrumentation.
Key Features
- Mersen Surge-Trap® Monobloc STMT23 Series.
- Model: STMT23-6K150V-SP-SM.
- Type 2+3 / Class II+III surge protection device.
- 6 kA Imax (8/20 μs).
- 3 kA nominal discharge current (In).
- 150 V AC maximum continuous operating voltage (Uc).
- Two-pole, 1Ph+N SP TT/TNS configuration.
- Slim one-module monobloc format with remote indication.
Reliable Protection for Sensitive Low Voltage Equipment
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.
Typical Applications
- Control panels and machinery cabinets.
- Power supply protection.
- Communication systems.
- Instrumentation and monitoring equipment.
- 120 V AC control circuits.
- Compact distribution boards with limited DIN rail space.
Technical Specifications
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| Voltage | 120 V | |
|---|---|---|
| Phase | Single Phase | |
| Poles | 2-pole | |
| Device Type | Surge protection device | |
| SPD Type | Type 2+3 | |
| Earthing System | TN-S, TT | |
| Nominal Discharge Current (In) | 3 kA | |
| Remote Signal | Yes | |
| 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 | TN-S, TT | |
| Network type | TN-S, TT | |
| 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 |
Frequently Asked Questions
What is the Mersen 83230503 used for?
It is used to protect sensitive low voltage electrical equipment from transient overvoltages caused by lightning activity, switching events and electrical disturbances.
What type of surge protection device is the Mersen 83230503?
The Mersen 83230503 is a Type 2+3 / Class II+III surge protection device.
What is the maximum discharge current?
The device provides a maximum discharge current of 6 kA (8/20 μs) with a nominal discharge current of 3 kA.
Does the Mersen 83230503 include remote indication?
Yes. The device includes remote indication, allowing its status to be monitored from a control panel or monitoring system.
How is the Mersen 83230503 installed?
It features a slim one-module monobloc DIN rail design, making it ideal for compact electrical panels and control cabinets.
Trusted by Electrical Professionals Worldwide
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.
