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Mersen Surge Protector Type 1+2 SPD 4 Pole 230/400 Volt 25KA TNS Remote Indication
MPN: 83120161
Alt. SKU: STPT12-25K275V-4PM
Why Choose the Surge Protection Device Type 1+2, 25kA Iimp (10/350), 230/400V, 4+0 TNS, 4 Poles, Pluggable, 8 Modules, Remote Indication STPT12-25K275V-4PM?
This advanced surge protection device provides robust defence against direct and indirect lightning currents with a high Iimp rating of 25kA (10/350 µs), ensuring optimal safety for 230/400V, 4+0 TNS networks. Its four-pole, pluggable design allows for easy installation and rapid module replacement, minimising downtime during maintenance.
Featuring remote indication for real-time status monitoring, this unit guarantees enhanced reliability and convenience for critical applications. The STPT12-25K275V-4PM is ideal for main power distribution boards, combining superior protection, modular flexibility, and operational efficiency in an eight-module format.
Product Code: 83120161
Key Benefits
- High lightning impulse current rating of 25 kA ensures superior protection against surges.
- Pluggable 8-module design allows for quick and easy maintenance or replacement.
- Remote indication feature enables real-time monitoring of device status, reducing downtime.
- Suitable for 230/400V 4+0 TNS systems, providing comprehensive protection across all poles.
- Compact dimensions and DIN rail mounting simplify installation in power distribution boards.
Compatibility
This surge protection device is compatible with 230/400V AC power systems configured in TNS arrangements. It supports 4-pole installations and is designed for use with standard DIN rail mounting systems. The device can be integrated seamlessly into main power distribution boards requiring Class I+II surge protection.
Applications
- Main power distribution boards in commercial and industrial buildings.
- Protection of sensitive electrical and electronic equipment from lightning and switching surges.
- Use in facilities with critical power supply requirements needing reliable surge protection.
- Installation in renewable energy systems and electrical infrastructure with TNS configuration.
Technical Specifications
- Item number: 83120161
- Catalogue No: STPT12-25K275V-4PM
- Description: Surge Protection Device Type 1+2, 25kA Iimp (10/350), 230/400V, 4+0 TNS, 4 Poles, Pluggable, 8 Modules, Remote indication
- EAN/UPC Code: 8435297859147
- 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): 100 kA
- Protection Modes: L-PE / N-PE
- System Configuration: TNS
- Lightning Impulse Current (10/350) (LIMP): 25 kA
- Short Circuit Withstand (ISCCR): 25 kA
- Indication System: Yes
- Indication System Type: Green (OK) / Not green (replace) Microswitch
- Number of Poles: 4-Pole
- Torque Rating: 3 Nm
- Max. Back-Up Fuse: 315 A [gG]
- Housing Material: PA66 CT1
- MOV Response Time: ≤25
- Installation Mounting: DIN rail
- Replacement Plug L1: 83120007
- Product Width: 144 mm
- Product Length: 76 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 1.459 kg
- Sell Pack Width: 136 mm
- Sell Pack Length: 145 mm
- Sell Pack Height: 86 mm
- Product group: Power Line SPDs
- Product Weight: 1.364 kg
Frequently Asked Questions
What type of surge protection does this device provide?
This device provides Type 1+2 surge protection, offering defence against direct lightning strikes and switching surges.
Can this device be used in a TN-C or TT system?
No, this device is specifically designed for TNS system configurations and is not suitable for TN-C or TT systems.
How does the remote indication feature work?
The remote indication uses a microswitch that changes state when the device requires replacement, allowing remote monitoring of the SPD status.
Is the device easy to replace or maintain?
Yes, the pluggable 8-module design allows for quick replacement without the need to disconnect wiring, minimising downtime.
Common Search Terms
Surge protection device, SPD Type 1+2, 25kA surge protector, 4 pole surge protector, pluggable SPD, remote indication surge protector, DIN rail SPD, lightning protection device, 230/400V surge protection, power line SPD
| Manufacturer Part Number | 83120161 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297859147 |
| Manufacturer | Mersen |
| Number of Poles | 4 Pole |
| Voltage | 230/400V |
| Maximum Continuous Voltage | 275V |
| Nominal Discharge Current | 25Ka |
| Remote Indication | Yes |
| System Type | TNS |
| Alternative Product SKU | STPT12-25K275V-4PM |

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.

