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Mersen Surge Protector Type 1+2 SPD 4 Pole 230/400 Volt 25KA TT
MPN: 83120150
Alt. SKU: STPT12-25K275V-4PG
Special Price
£500.38
£416.98
Regular Price
£667.16
Why Choose the STPT12-25K275V-4PG Surge Protection Device?
The STPT12-25K275V-4PG offers advanced Type 1+2 surge protection for 3-phase+N TT systems, ensuring robust defence against direct lightning strikes and transient overvoltages up to 25kA Iimp (10/350). Designed for 230/400V applications, this 4-pole, 8-module unit integrates seamlessly into standard industrial panels.
Featuring pluggable cartridges for rapid, tool-free replacement and clear visual status indicators, the device minimises downtime and maintenance costs. Engineered for reliability in demanding environments, it provides dependable operation and enhanced safety for sensitive equipment.
Technical Specifications
- Item number: 83120150
- Catalogue No: STPT12-25K275V-4PG
- Description: Surge Protection Device Type 1+2, 25kA Iimp (10/350), 3Ph+N, 230/400V, 3+1 TT, 4 Poles, Pluggable, 8 Modules
- EAN/UPC Code: 8435297857365
- 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)
- Number of Poles: 4-Pole
- Torque Rating: 3 Nm
- Max. Back-Up Fuse: 315 A [gG]
- 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: 1.35 kg
- Sell Pack Width: 136 mm
- Sell Pack Length: 145 mm
- Sell Pack Height: 86 mm
- Product group: Power Line SPDs
- Product Weight: 1.26 kg
Product Code: STPT12-25K275V-4PG
Key Benefits
- High surge current capacity with 25kA lightning impulse current (10/350 µs) protection.
- Type 1+2 classification ensures comprehensive protection against direct lightning strikes and switching surges.
- Pluggable cartridge design allows for quick, tool-free replacement reducing downtime.
- Clear visual indication system for easy status monitoring and maintenance planning.
- Compatible with 3-phase+N TT and TNS systems for versatile installation.
- Compact 8-module width fits standard industrial DIN rail panels.
Compatibility
The STPT12-25K275V-4PG is compatible with 230/400V AC power systems configured as TT and TNS. It supports 3-phase plus neutral wiring and is suitable for installations requiring Type 1+2 surge protection devices. The device integrates easily with standard DIN rail mounting systems and can be used in industrial and commercial electrical panels.
Applications
- Industrial power distribution panels.
- Commercial building electrical installations.
- Protection of sensitive electronic and control equipment.
- Renewable energy systems requiring surge protection.
- Lightning-prone areas needing robust surge defence.
Frequently Asked Questions
What type of systems is this SPD suitable for?
This surge protection device is suitable for 3-phase plus neutral TT and TNS systems operating at 230/400V AC.
How does the indication system work?
The device features a visual indication system that shows green when the SPD is operational and changes colour when replacement is needed, facilitating easy maintenance checks.
Can the cartridges be replaced without tools?
Yes, the STPT12-25K275V-4PG uses pluggable cartridges designed for rapid, tool-free replacement to minimise downtime.
What is the maximum discharge current this device can handle?
It can handle a maximum discharge current (Imax) of 100 kA (8/20 µs waveform).
Common Search Terms
Surge protection device, SPD Type 1+2, 25kA surge protector, 3-phase SPD, pluggable surge protector, DIN rail SPD, lightning protection device, industrial surge protection, 230/400V surge protector, power line SPD.
| Manufacturer Part Number | 83120150 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297857365 |
| Height | 76mm |
| Width | 144mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 4 Pole |
| Voltage | 230/400V |
| Maximum Continuous Voltage | 275V |
| Nominal Discharge Current | 25Ka |
| System Type | TT |
| Alternative Product SKU | STPT12-25K275V-4PG |
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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