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Mersen Surge Protector Type 1+2 SPD 4 Pole 230/400 Volt 25KA TNS
MPN: 83120160
Alt. SKU: STPT12-25K275V-4P
Special Price
£493.66
£411.38
Regular Price
£658.20
Why Choose the STPT12-25K275V-4P Surge Protection Device?
The STPT12-25K275V-4P delivers robust Type 1+2 protection with a high Iimp of 25kA (10/350 μs) for TNS 3-phase+N (4+0) networks at 230/400V. Designed for critical industrial and commercial installations, it ensures reliable safeguarding against direct lightning strikes and switching surges.
This 4-pole, pluggable SPD features a compact 8-module form factor for easy DIN rail installation and straightforward maintenance. Engineered to maximise system uptime and operational safety, it is ideal for main distribution boards requiring proven surge protection performance.
Technical Specifications
- Item number: 83120160
- Catalogue No: STPT12-25K275V-4P
- Description: Surge Protection Device Type 1+2, 25kA Iimp (10/350), 3Ph+N, 230/400V, 4+0 TNS, 4 Poles, Pluggable, 8 Modules
- EAN/UPC Code: 8435297859130
- 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)
- 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: 1.444 kg
- Sell Pack Width: 136 mm
- Sell Pack Length: 145 mm
- Sell Pack Height: 86 mm
- Product group: Power Line SPDs
- Product Weight: 1.352 kg
Product Code: STPT12-25K275V-4P
Key Benefits
- High lightning impulse current capacity of 25kA (10/350 μs) ensures superior protection against direct lightning strikes.
- Type 1+2 classification provides comprehensive surge protection for critical industrial and commercial installations.
- Compact 8-module, 4-pole pluggable design enables easy installation and maintenance on DIN rails.
- Visual indication system for quick status checks reduces downtime and maintenance effort.
- Robust construction with PA66 CT1 housing material for enhanced durability and safety.
Compatibility
The STPT12-25K275V-4P is compatible with TNS system configurations operating at 230/400V AC. It is designed for use in main distribution boards with 4-pole (3-phase + neutral) setups and supports L-PE and N-PE protection modes. Replacement plugs such as the 83120007 model ensure easy servicing and component replacement.
Applications
- Industrial power distribution boards requiring high-level surge protection.
- Commercial buildings with critical electrical infrastructure.
- Facilities exposed to frequent lightning activity or switching surges.
- Renewable energy installations needing reliable surge protection devices.
- Data centres and control rooms demanding system uptime and safety.
Frequently Asked Questions
What type of surge protection does the STPT12-25K275V-4P provide?
It provides Type 1+2 surge protection, suitable for both direct lightning strikes and switching surges.
Can this device be installed on any electrical system?
This SPD is designed specifically for TNS 3-phase+N (4+0) systems at 230/400V AC.
How do I know when the device needs replacement?
The device features a green indication system; if the indicator is not green, it signals that replacement is necessary.
Is the device easy to install and maintain?
Yes, its pluggable 8-module design allows for straightforward DIN rail installation and easy replacement of components.
Common Search Terms
surge protection device, SPD 25kA, Type 1+2 SPD, 4-pole surge protector, DIN rail SPD, industrial surge protection, lightning protection device, TNS system SPD, pluggable surge protector, 230/400V surge protection
| Manufacturer Part Number | 83120160 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297859130 |
| 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 | TNS |
| Alternative Product SKU | STPT12-25K275V-4P |
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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