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Mersen Surge Protector Type 1+2 SPD 3 Pole 400 Volt 20KA TNC Remote Indication
MPN: 83120131
Alt. SKU: STPT12-12K275V-3PM
This product is discontinued. Please view this replacement item.
Why Choose the Surge Protection Device Type 1+2 STPT12-12K275V-3PM?
This high-performance SPD delivers robust protection for three-phase (-/400V TNC) installations, effectively safeguarding equipment against transient overvoltages from both direct lightning strikes and switching events. With a 12.5kA Iimp (10/350) per pole and a three-pole, three-module pluggable design, it ensures reliable, maintenance-friendly operation in demanding industrial environments.
Featuring remote indication for real-time status monitoring, the STPT12-12K275V-3PM streamlines integration into automated control systems, maximising uptime and ensuring compliance with the latest surge protection standards.
Product Code: 83120131
Key Benefits
- High surge current capacity of 12.5kA (10/350) per pole for superior protection
- Three-pole, three-module pluggable design enables easy installation and maintenance
- Remote indication system provides real-time status monitoring to prevent downtime
- Complies with IEC SPD Type Class I+II standards ensuring reliable performance
- Compact dimensions (54 mm width, 76 mm length, 90 mm height) save panel space
- Robust PA66 CT1 housing material for durability in industrial environments
Compatibility
The STPT12-12K275V-3PM is compatible with three-phase electrical systems configured as TNC (-/400V) and is suitable for installation on standard DIN rails. It integrates seamlessly with control systems requiring remote status indication, making it ideal for industrial and commercial power distribution boards.
Applications
- Industrial power distribution panels
- Commercial three-phase electrical installations
- Buildings with high lightning exposure risk
- Automation and control systems requiring surge protection and monitoring
- Renewable energy systems with three-phase inverters
Technical Specifications
- Item number: 83120131
- Catalogue No: STPT12-12K275V-3PM
- Description: Surge Protection Device Type 1+2, 12.5kA Iimp (10/350), 3Ph, -/400V, 3+0 TNC, 3 Poles, Pluggable, 3 Modules, Remote indication
- EAN/UPC Code: 8435297849148
- RoHS Compliant: Yes
- IEC SPD Type: Class I+II
- Format: Pluggable
- Nominal Operating Volt Rating (Un): 230/400
- AC or DC: AC
- Max Discharge Current : Imax (8/20): 50 kA
- Protection Modes: L-PE(N)
- System Configuration: TNC
- 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: 3-Pole
- Torque Rating: 3 Nm
- Housing Material: PA66 CT1
- MOV Response Time: ≤25
- Installation Mounting: DIN rail
- Replacement Plug L1: 83120002
- Product Width: 54 mm
- Product Length: 76 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.537 kg
- Sell Pack Width: 63 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.498 kg
Frequently Asked Questions
What type of electrical systems is this SPD suitable for?
The STPT12-12K275V-3PM is designed for three-phase TNC systems with a nominal voltage of 230/400V AC.
Does this device provide remote status indication?
Yes, it features a green (OK) / not green (replace) microswitch for remote indication, allowing real-time monitoring of the SPD's status.
Can this SPD be installed on a DIN rail?
Yes, the device is designed for DIN rail mounting, facilitating easy installation and replacement.
What is the maximum discharge current rating?
The maximum discharge current (Imax 8/20 µs) is 50 kA, providing robust protection against high surge events.
Common Search Terms
Surge protection device, SPD Type 1+2, 12.5kA surge protector, three-phase SPD, pluggable surge protector, DIN rail SPD, remote indication SPD, industrial surge protection, TNC system SPD, power line surge protector.
| Manufacturer Part Number | 83120131 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297849148 |
| Height | 76mm |
| Width | 54mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 3 Pole |
| Voltage | 400V |
| Maximum Continuous Voltage | 275V |
| Nominal Discharge Current | 20Ka |
| Remote Indication | Yes |
| System Type | TNC |
| Alternative Product SKU | STPT12-12K275V-3PM |
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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