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Mersen Surge Protector Type 1+2 SPD 1 Pole 230 Volt 25KA L-N
MPN: 83120152
Alt. SKU: STPT12-25K275V-1P
Special Price
£126.67
£105.56
Regular Price
£171.41
Why Choose the STPT12-25K275V-1P Surge Protection Device?
The STPT12-25K275V-1P delivers reliable Type 1+2 surge protection with a robust impulse current rating of 25kA (10/350μs), ideal for safeguarding single-phase 230V installations. Its precise L-N configuration ensures superior defence against transient overvoltages originating from lightning strikes or switching events.
This compact, 1-pole, pluggable SPD fits neatly into 2 standard DIN modules, streamlining installation and future maintenance. Trusted for commercial and industrial applications, it offers enhanced operational continuity and effective protection for sensitive equipment.
Product Code: STPT12-25K275V-1P
Key Benefits
- High impulse current rating of 25kA (10/350μs) ensures robust surge protection.
- Compact 2-module pluggable design simplifies installation and maintenance.
- Indication system with green OK signal for easy status monitoring.
- Suitable for single-phase 230V systems with L-N protection mode.
- Complies with IEC Class I+II standards for comprehensive surge defence.
Compatibility
This surge protection device is compatible with TNS, TNC, and TT system configurations, specifically providing L-N protection. It fits standard DIN rail mounting systems and supports a maximum backup fuse rating of 315 A [gG]. Replacement plug L1 is available under code 83120007.
Applications
- Commercial and industrial electrical installations requiring Type 1+2 surge protection.
- Protection of sensitive equipment from transient overvoltages caused by lightning or switching.
- Single-phase 230V power distribution boards and control panels.
- Buildings with TNS, TNC, or TT earthing systems.
Technical Specifications
- Item number: 83120152
- Catalogue No: STPT12-25K275V-1P
- Description: Surge Protection Device Type 1+2, 25kA Iimp (10/350), 1Ph, 230V, L-N, 1 Pole, Pluggable, 2 Modules
- EAN/UPC Code: 8435297859055
- 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): 100 kA
- Protection Modes: L - N / L-PE / N-PE
- System Configuration: TNS, TNC, TT (only L-N)
- 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)
- Number of Poles: 1-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: 36 mm
- Product Length: 76 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.38 kg
- Sell Pack Width: 42 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.345 kg
Frequently Asked Questions
What type of surge protection does the STPT12-25K275V-1P provide?
It provides Type 1+2 surge protection, suitable for both direct lightning strikes and switching surges.
Can this SPD be used in three-phase systems?
No, this model is designed for single-phase 230V systems only.
How do I know when the device needs replacing?
The SPD features an indication system with a green light signalling normal operation; if the light is not green, replacement is necessary.
Is the device RoHS compliant?
Yes, the STPT12-25K275V-1P is RoHS compliant.
Common Search Terms
surge protection device, SPD 230V, Type 1+2 SPD, pluggable surge protector, DIN rail SPD, single-phase surge protection, lightning surge protector, industrial SPD
| Manufacturer Part Number | 83120152 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297859055 |
| Height | 76mm |
| Width | 36mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 1 pole |
| Voltage | 230V |
| Maximum Continuous Voltage | 275V |
| Nominal Discharge Current | 25Ka |
| System Type | L-N |
| Alternative Product SKU | STPT12-25K275V-1P |
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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