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Mersen Surge Protector Type 1+2 SPD 1 Pole 400 Volt 20KA L-N Remote Indication
MPN: 83120107
Alt. SKU: STPT12-12K440V-1PM
Special Price
£88.33
£73.61
Regular Price
£117.78
Why Choose the STPT12-12K440V-1PM Surge Protection Device?
The STPT12-12K440V-1PM Type 1+2 surge protection device delivers reliable protection against lightning currents and transient overvoltages, supporting up to 12.5kA Iimp (10/350 μs) for single-phase 400V systems (L-N). Its 1-pole, pluggable design streamlines panel installation and replacement while conserving space with a single-module footprint.
Engineered with integrated remote indication, this device enables straightforward system monitoring and fault reporting for critical infrastructure. Ideal for safeguarding sensitive equipment and electrical distribution systems in industrial environments.
Technical Specifications
- Item number: 83120107
- Catalogue No: STPT12-12K440V-1PM
- Description: Surge Protection Device Type 1+2, 12.5kA Iimp (10/350), 1Ph, 400V, L-N, 1 Pole, Pluggable, 1 Module, Remote indication
- EAN/UPC Code: 8435297851318
- RoHS Compliant: Yes
- IEC SPD Type: Class I+II
- Format: Pluggable
- Nominal Operating Volt Rating (Un): 400
- AC or DC: AC
- Max Discharge Current : Imax (8/20): 50 kA
- Protection Modes: L - N / L-PE / N-PE
- System Configuration: TNS, TNC, TT (only L-N)
- Lightning Impulse Current (10/350) (LIMP): 12.5 kA
- Short Circuit Withstand (ISCCR): 25 kA
- Indication System: Yes
- Indication System Type: Green (OK) / Not green (replace) Microswitch
- Number of Poles: 1-pole
- Torque Rating: 3 Nm
- Housing Material: PA66 CT1
- MOV Response Time: ≤25
- Installation Mounting: DIN rail
- Replacement Plug L1: 83120004
- Product Width: 18 mm
- Product Length: 76 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.235 kg
- Sell Pack Width: 24 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.19 kg
Product Code: 83120107
Key Benefits
- High surge current capacity of 12.5kA (10/350 μs) for robust lightning protection
- Compact 1-module pluggable design for easy installation and replacement
- Integrated remote indication for real-time monitoring and fault signalling
- Suitable for single-phase 400V systems with multiple protection modes (L-N, L-PE, N-PE)
- Complies with Class I+II IEC SPD standards ensuring reliable performance
- Durable housing material (PA66 CT1) and DIN rail mounting for secure installation
Compatibility
The STPT12-12K440V-1PM is compatible with TNS, TNC, and TT system configurations (only L-N for TT). It is designed for single-phase 400V AC electrical systems and can be integrated into panels with DIN rail mounting. The device supports connection to replacement plug L1 model 83120004 for maintenance and upgrades.
Applications
- Industrial electrical distribution panels
- Protection of sensitive electronic equipment from transient overvoltages
- Commercial building power installations
- Critical infrastructure requiring remote status monitoring
- Lightning protection for single-phase 400V systems
Frequently Asked Questions
What type of surge protection does this device provide?
The STPT12-12K440V-1PM provides Type 1+2 surge protection, suitable for both lightning impulse currents and transient overvoltages.
Can this device be used in three-phase systems?
No, this model is designed for single-phase 400V systems only.
Does the device offer remote indication?
Yes, it includes an integrated remote indication system with a microswitch for monitoring device status.
What is the mounting method for this SPD?
The device is designed for DIN rail mounting, allowing easy installation in standard electrical panels.
Common Search Terms
surge protection device, SPD, Type 1+2 SPD, 12.5kA surge protector, 400V single phase SPD, pluggable surge protector, DIN rail SPD, lightning protection device, remote indication SPD, industrial surge protector
| Manufacturer Part Number | 83120107 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297851318 |
| Height | 76mm |
| Width | 18mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 1 pole |
| Voltage | 400V |
| Maximum Continuous Voltage | 440V |
| Nominal Discharge Current | 20Ka |
| Remote Indication | Yes |
| System Type | L-N |
| Alternative Product SKU | STPT12-12K440V-1PM |
Write Your Own Review
Protection system of coordinated stages: Type 1, 2 and 3 SPDs
The SPDs of a surge protection system must be able to withstand the discharged current and provide a Ures level (residua l voltage) lower than the Ue peak voltage that the equipment can withstand. Most of the times it is not possible to achieve this with just one SPD, especially because the intensity of the surge is not known, and because of the induction of overvoltages when conductors exceed 10m.
The optimal system of protection is the 3-STEP approach, in which successive stages are combined in the performance of high discharge capacity devices and devices with an optimal voltage protection level (low). This is addressed by the definition of "Types" or "Classes" of SPDs according to the type of transient pulses to which each protected zone in the installation is subject to.
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