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Mersen Surge Protector Type 1+2 SPD 4 Pole 230/400:400/690 Volt 20KA IT
MPN: 83120148
Alt. SKU: STPT12-12K440V-4P
Special Price
£300.19
£250.16
Regular Price
£400.25
Why Choose the STPT12-12K440V-4P Surge Protection Device?
Designed for robust protection in commercial and industrial power systems, the STPT12-12K440V-4P offers Type 1+2 surge protection with a high impulse discharge capability of 12.5kA (10/350 µs), making it ideal for environments susceptible to direct or indirect lightning strikes.
This 4-pole, pluggable SPD is suitable for 3-phase+Neutral applications at 230/400V or 400/690V, compatible with TNS, IT, and 4+0 systems. Compact 4-module design ensures fast installation and easy maintenance while delivering reliable safeguarding of critical equipment from transient overvoltages.
Product Code: 83120148
Key Benefits
- High impulse discharge current of 12.5kA (10/350 µs) for superior lightning protection
- Type 1+2 surge protection suitable for direct and indirect lightning strikes
- Compact 4-module pluggable design for easy installation and maintenance
- Compatible with multiple system configurations including TNS, IT, and 4+0
- Visual indication system with green (OK) / not green (replace) status display
- Robust housing material (PA66 CT1) ensures durability in industrial environments
Compatibility
The STPT12-12K440V-4P is compatible with 3-phase plus neutral power systems operating at 230/400V or 400/690V and supports TNS, IT, and 4+0 system configurations. It is designed for use with DIN rail mounting and integrates seamlessly with existing electrical distribution setups.
Applications
- Commercial and industrial power distribution boards
- Protection of critical electrical and electronic equipment from transient overvoltages
- Installation in environments prone to lightning strikes and electrical surges
- Use in manufacturing plants, data centres, and infrastructure facilities
- Suitable for new installations and retrofit projects requiring reliable surge protection
Technical Specifications
- Item number: 83120148
- Catalogue No: STPT12-12K440V-4P
- Description: Surge Protection Device Type 1+2, 12.5kA Iimp (10/350), 3Ph+N, 230/400; 400/690V, 4+0 IT; TNS, 4 Poles, Pluggable, 4 Modules
- EAN/UPC Code: 8435297851554
- RoHS Compliant: Yes
- IEC SPD Type: Class I+II
- Format: Pluggable
- Nominal Operating Volt Rating (Un): 400/690
- AC or DC: AC
- Max Discharge Current : Imax (8/20): 50 kA
- Protection Modes: L-PE / N-PE
- System Configuration: TNS
- Lightning Impulse Current (10/350) (LIMP): 12.5 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
- Housing Material: PA66 CT1
- MOV Response Time: ≤25
- Installation Mounting: DIN rail
- Replacement Plug N-PE: 83120004
- Replacement Plug L-N: 83120004
- Product Width: 72 mm
- Product Length: 76 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.728 kg
- Sell Pack Width: 78 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.683 kg
Frequently Asked Questions
What types of systems is this SPD compatible with?
The STPT12-12K440V-4P is compatible with TNS, IT, and 4+0 system configurations, suitable for 3-phase plus neutral power systems at 230/400V or 400/690V.
How does the indication system work?
The device features a visual indication system that shows green when operating correctly and changes colour when replacement is necessary, ensuring easy maintenance checks.
Can this SPD be installed on a DIN rail?
Yes, the STPT12-12K440V-4P is designed for DIN rail mounting, facilitating quick and secure installation in electrical distribution panels.
What is the maximum discharge current of this device?
The maximum discharge current (Imax) for this SPD is 50 kA (8/20 µs), providing robust protection against high surge currents.
Common Search Terms
surge protection device, SPD 12.5kA, Type 1+2 surge protector, 4-pole SPD, 3-phase surge protection, pluggable surge protector, DIN rail SPD, industrial surge protection, lightning protection device, power line SPD
| Manufacturer Part Number | 83120148 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297851554 |
| Height | 76mm |
| Width | 72mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 4 Pole |
| Voltage | 230/400 and 400/690V |
| Maximum Continuous Voltage | 440V |
| Nominal Discharge Current | 20Ka |
| System Type | IT |
| Alternative Product SKU | STPT12-12K440V-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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