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Mersen Surge Protector Type 1+2 SPD 4 Pole 230/400 Volt 20KA TNS
MPN: 83120144
Alt. SKU: STPT12-12K275V-4P
This product is discontinued. Please view this replacement item.
Why Choose the STPT12-12K275V-4P Surge Protection Device?
This Type 1+2 surge protection device delivers robust protection against both direct lightning strikes and transient overvoltages, rated for 12.5kA Iimp (10/350) per pole. Suitable for 3-phase+N systems (230/400V, TNS), it features a 4-pole, pluggable design optimised for easy installation and rapid maintenance.
Engineered for critical industrial and commercial environments, it ensures high reliability and system integrity. Compact 4-module width allows straightforward integration into standard DIN rail panels, making it a dependable choice for enhanced electrical safety.
Technical Specifications
- Item number: 83120144
- Catalogue No: STPT12-12K275V-4P
- Description: Surge Protection Device Type 1+2, 12.5kA Iimp (10/350), 3Ph+N, 230/400V, 4+0 TNS, 4 Poles, Pluggable, 4 Modules
- EAN/UPC Code: 8435297851592
- 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): 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: 83120002
- Replacement Plug L-N: 83120002
- Product Width: 72 mm
- Product Length: 76 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.69 kg
- Sell Pack Width: 78 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.646 kg
Product Code: STPT12-12K275V-4P
Key Benefits
- High surge current capacity of 12.5kA Iimp per pole for superior protection.
- Pluggable 4-pole design enables quick installation and easy maintenance.
- Compact 4-module width fits standard DIN rail panels, saving space.
- Visual indication system for easy status monitoring and timely replacement.
- Suitable for 3-phase+N TNS systems, ensuring broad compatibility.
- Robust housing material (PA66 CT1) for durability in industrial environments.
Compatibility
This surge protection device is compatible with 3-phase plus neutral (3Ph+N) electrical systems operating at 230/400V in TNS configurations. It is designed for DIN rail mounting and integrates seamlessly with standard industrial and commercial electrical panels requiring Class I+II surge protection.
Applications
- Industrial power distribution boards
- Commercial building electrical installations
- Critical infrastructure requiring lightning and surge protection
- Renewable energy systems with grid connection
- Data centres and telecommunication facilities
Frequently Asked Questions
What is the maximum surge current this device can handle?
The device can handle a maximum discharge current (Imax) of 50 kA (8/20 µs waveform) and a lightning impulse current (Iimp) of 12.5 kA (10/350 µs) per pole.
Is this SPD suitable for outdoor installations?
This SPD is designed for installation inside electrical panels mounted on DIN rails. For outdoor use, additional appropriate enclosures or devices should be considered.
How can I tell when the device needs to be replaced?
The device includes a visual indication system that shows green when operational and changes colour when replacement is required.
Can this device be used in DC systems?
No, this surge protection device is designed specifically for AC systems.
Common Search Terms
Type 1+2 SPD, 4-pole surge protector, 12.5kA lightning arrester, 3-phase surge protection, DIN rail SPD, industrial surge protector, TNS system surge device, pluggable surge protection module.
| Manufacturer Part Number | 83120144 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297851592 |
| Height | 76mm |
| Width | 72mm |
| 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 | 20Ka |
| System Type | TNS |
| Alternative Product SKU | STPT12-12K275V-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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