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Mersen Surge Protector Type 1+2 SPD 2 Pole 230 Volt 20KA TNS Remote Indication
MPN: 83120121
Alt. SKU: STPT12-12K275V-2PM
This product is discontinued. Please view this replacement item.
Why Choose the STPT12-12K275V-2PM Surge Protection Device?
This Type 1+2 surge protection device provides robust protection against lightning and switching surges, featuring a high Iimp of 12.5kA (10/350) for direct and indirect strike resilience in 1Ph+N, 230V TN-S systems. Its 2-pole, pluggable design facilitates straightforward installation and replacement, minimising downtime and ensuring consistent safety for low voltage equipment.
With remote indication capability, the STPT12-12K275V-2PM simplifies status monitoring and integration into building management systems. Its compact 2-module form factor conserves space in electrical panels, delivering dependable, long-term protection for critical installations where power continuity is paramount.
Technical Specifications
- Item number: 83120121
- Catalogue No: STPT12-12K275V-2PM
- Description: Surge Protection Device Type 1+2, 12.5kA Iimp (10/350), 1Ph+N, 230/-V, 2+0 TNS, 2 Poles, Pluggable, 2 Modules, Remote indication
- EAN/UPC Code: 8435297849131
- RoHS Compliant: Yes
- IEC SPD Type: Class I+II
- Format: Pluggable
- Nominal Operating Volt Rating (Un): 230
- AC or DC: AC
- Max Discharge Current : Imax (8/20): 50 kA
- Protection Modes: L-PE / N-PE
- System Configuration: TNS
- 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: 2-Pole
- Torque Rating: 3 Nm
- Max. Back-Up Fuse: 200 A [gG]
- Housing Material: PA66 CT1
- MOV Response Time: ≤25
- Installation Mounting: DIN rail
- Replacement Plug N-PE: 83120028
- Replacement Plug L-N: 83120028
- Product Width: 36 mm
- Product Length: 76 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.37 kg
- Sell Pack Width: 42 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.36 kg
Product Code: STPT12-12K275V-2PM
Key Benefits
- High lightning impulse current capacity of 12.5kA (10/350 µs) ensures superior protection against direct and indirect lightning strikes.
- Pluggable 2-pole design allows for easy installation and quick replacement, reducing maintenance time.
- Remote indication feature enables real-time monitoring and integration with building management systems.
- Compact 2-module width saves valuable space within electrical distribution boards.
- Complies with IEC Class I+II standards for reliable surge protection performance.
- Robust construction with PA66 CT1 housing material ensures durability and long service life.
Compatibility
The STPT12-12K275V-2PM is designed for use in 230V TN-S electrical systems with 1Ph+N configuration. It is suitable for integration with standard DIN rail mounting panels and compatible with backup fuses up to 200 A [gG]. Replacement plugs (part number 83120028) are available for both N-PE and L-N connections, ensuring seamless maintenance and part replacement.
Applications
- Protection of low voltage electrical installations in commercial and industrial buildings.
- Surge protection for critical infrastructure requiring continuous power supply.
- Use in electrical distribution boards for lightning and switching surge mitigation.
- Integration in building management systems for remote status monitoring.
- Suitable for residential, commercial, and light industrial environments.
Frequently Asked Questions
What is the maximum discharge current of this surge protection device?
The maximum discharge current (Imax) is 50 kA (8/20 µs), providing strong protection against high-energy surges.
Can the device be used in three-phase systems?
This model is designed for single-phase plus neutral (1Ph+N) systems. For three-phase applications, a different SPD model should be selected.
Does the device provide remote status indication?
Yes, it features a remote indication system with a microswitch that signals the device status for easy monitoring.
How is the device installed?
The SPD is mounted on a standard DIN rail and features a pluggable design for straightforward installation and replacement.
Common Search Terms
surge protection device, SPD Type 1+2, 12.5kA surge protector, 230V TN-S SPD, pluggable surge protector, remote indication SPD, lightning surge protection, DIN rail SPD, electrical panel surge protector
| Manufacturer Part Number | 83120121 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297849131 |
| Height | 76mm |
| Width | 36mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 2 Pole |
| Voltage | 230V |
| Maximum Continuous Voltage | 275V |
| Nominal Discharge Current | 20Ka |
| Remote Indication | Yes |
| System Type | TNS |
| Alternative Product SKU | STPT12-12K275V-2PM |
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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