We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
Mersen Surge Protector Type 1+2 SPD 4 Pole 230/400 Volt 25KA TT Remote Indication
MPN: 83120151
Special Price
£537.42
£447.85
Regular Price
£727.21
Why Choose the STPT12-25K275V-4PGM Surge Protection Device?
Engineered for robust protection in 3-phase+N, 230/400V TT installations, this Type 1+2 SPD offers 25kA Iimp (10/350) lightning impulse capability, ensuring compliance with demanding industrial standards. Its 4-pole, 8-module pluggable design enables straightforward maintenance and rapid replacement, minimising downtime.
Featuring remote indication for effective status monitoring, the STPT12-25K275V-4PGM supports enhanced site reliability and operational continuity. Select this SPD for advanced surge mitigation in critical electrical systems where safety and performance are paramount.
Technical Specifications
- Item number: 83120151
- Catalogue No: STPT12-25K275V-4PGM
- Description: Surge Protection Device Type 1+2, 25kA Iimp (10/350), 3Ph+N, 230/400V, 3+1 TT, 4 Poles, Pluggable, 8 Modules, Remote indication
- EAN/UPC Code: 8435297857891
- 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-N / N-PE
- System Configuration: TT, TNS
- Lightning Impulse Current (10/350) (LIMP): 25 kA
- Following Current (Ifi): 100 A
- 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
- Housing Material: PA66 CT1
- Installation Mounting: DIN rail
- Uc (L-N): 275 V
- Uc (N-PE): 255 V
- Up at In (N-PE): ≤1,5 kV
- Up at In (L-N): ≤1,5 kV
- Replacement Plug N-PE: 83120009
- Replacement Plug L-N: 83120007
- Product Width: 144 mm
- Product Length: 76 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 1.369 kg
- Sell Pack Width: 136 mm
- Sell Pack Length: 145 mm
- Sell Pack Height: 86 mm
- Product group: Power Line SPDs
- Product Weight: 1.278 kg
Product Code: STPT12-25K275V-4PGM
Key Benefits
- High lightning impulse current capacity of 25kA (10/350 µs) for superior surge protection.
- Pluggable 8-module design allows easy maintenance and quick replacement, reducing downtime.
- Remote indication feature enables effective monitoring of device status from a distance.
- Compatible with 3-phase + Neutral TT systems at 230/400V, ensuring broad application coverage.
- Robust construction with PA66 CT1 housing and DIN rail mounting for reliable installation.
Compatibility
This SPD is designed for use in TT and TNS system configurations with nominal operating voltages of 230/400V AC. It supports protection modes L-N and N-PE, making it suitable for industrial and commercial electrical installations requiring Type 1+2 surge protection.
Applications
- Industrial electrical distribution boards in TT and TNS systems.
- Commercial buildings requiring high-level surge protection.
- Critical infrastructure installations needing remote status monitoring.
- Systems exposed to high lightning activity or electrical surges.
- Facilities prioritising quick maintenance and minimal operational disruption.
Frequently Asked Questions
What is the maximum discharge current of the STPT12-25K275V-4PGM?
The maximum discharge current (Imax) is 100 kA (8/20 µs waveform).
Does this SPD provide remote indication?
Yes, it features a green (OK) / not green (replace) microswitch for remote status indication.
Which system configurations is this device compatible with?
It is compatible with TT and TNS system configurations.
Can the modules be replaced individually?
Yes, the 8-module pluggable design allows for straightforward replacement of individual modules.
What is the nominal operating voltage rating?
The nominal operating voltage rating is 230/400V AC.
Common Search Terms
surge protection device, SPD Type 1+2, 25kA lightning impulse, 3-phase surge protector, 230/400V SPD, pluggable surge protector, DIN rail SPD, remote indication SPD, TT system surge protection, industrial surge protector
| Manufacturer Part Number | 83120151 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297857891 |
| Manufacturer | Mersen |
| Number of Poles | 4 Pole |
| Voltage | 230/400V |
| Maximum Continuous Voltage | 275V |
| Nominal Discharge Current | 25Ka |
| Remote Indication | Yes |
| System Type | TT |
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.
Related Products
Check items to add to the cart or
