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Mersen Surge Protector Type 2+3 SPD 2 Pole 24 Volt 3KA TT/TNS
Mersen STMT23-6K30V-SP-S Type 2+3 slim monobloc surge protection device with 6 kA discharge capacity, 30 V AC maximum continuous operating voltage and SP TT/TNS configuration.
£55.16
Why Choose the Mersen STMT23-6K30V-SP-S Surge Protection Device?
The Mersen 83230504 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 protects connected equipment against voltage spikes caused by lightning activity, switching operations and electrical disturbances. Its slim one-module construction makes it ideal for compact control panels, machinery cabinets and distribution boards.
With a maximum discharge current of 6 kA (8/20 μs), a 30 V AC maximum continuous operating voltage (Uc) and a 24 V AC nominal operating voltage, the Mersen 83230504 is ideal for protecting low voltage control circuits, automation equipment, communication systems and instrumentation.
Key Advantages
- Compact Type 2+3 surge protection device.
- 6 kA maximum discharge current for effective surge protection.
- 30 V AC maximum continuous operating voltage.
- Slim monobloc design for installations with limited DIN rail space.
- 1 phase + neutral configuration for TT and TNS systems.
- Suitable for controls, communication equipment and power supplies.
Key Features
- Mersen Surge-Trap® Monobloc STMT23 Series.
- Model: STMT23-6K30V-SP-S.
- Type 2+3 / Class II+III surge protection device.
- 6 kA Imax (8/20 μs).
- 3 kA nominal discharge current (In).
- 30 V AC maximum continuous operating voltage (Uc L-N).
- Two-pole, 1Ph+N SP TT/TNS configuration.
- Slim one-module monobloc format.
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 costly downtime. Compact Type 2+3 devices provide fine protection close to sensitive electrical equipment where dependable performance is essential.
The Mersen Surge-Trap® Monobloc STMT23 Series is suitable for both AC and corresponding DC voltage applications, making it ideal for protecting control circuits, instrumentation, communication systems, power supplies and compact electrical panels.
Typical Applications
- Industrial control panels.
- PLC and automation systems.
- 24 V AC control circuits.
- Power supplies.
- Communication and IT equipment.
- Instrumentation and monitoring systems.
Technical Specifications
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| 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 | No | |
| Manufacturer | Mersen | |
| Series | Surge-Trap® Monobloc STMT23 Series | |
| Model | STMT23-6K30V-SP-S | |
| SKU | 83230504 | |
| 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 | |
| Combined voltage pulse (Uoc) | 6 kV | |
| Nominal operating voltage (Un) | 24 V AC | |
| Maximum continuous operating voltage (Uc L-N) | 30 V AC | |
| Typical DC operating voltage | 48 V DC | |
| 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 | |
| Protection modes | L-N / L-PE | |
| Protection rating | IP20 | |
| Short circuit withstand (ISCCR) | 10 kA | |
| Maximum back-up fuse | 63 A gG | |
| Response time | 25 ns | |
| EAN | 8435297850434 | |
| RoHS compliant | Yes | |
| HS Code | 85363090 | |
| Country of Manufacture | Spain |
Frequently Asked Questions
What is the Mersen 83230504 used for?
It protects sensitive low voltage electrical equipment from transient overvoltages caused by lightning activity and electrical switching events.
What type of surge protection device is the Mersen 83230504?
The Mersen 83230504 is a Type 2+3 / Class II+III surge protection device.
What operating voltage is this SPD designed for?
It is designed for 24 V AC systems with a maximum continuous operating voltage of 30 V AC.
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.
How is the Mersen 83230504 installed?
It features a slim one-module DIN rail mounted monobloc 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, machine builders and maintenance professionals to protect sensitive electrical systems against damaging transient overvoltages.
