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Mersen Surge Protector Type 1+2 SPD 4 Pole 230/400 Volt 20KA TT Remote Indication
MPN: 83120139
Alt. SKU: STPT12-12K275V-4PGM
This product is discontinued. Please view this replacement item.
Why Choose the STPT12-12K275V-4PGM Surge Protection Device?
The STPT12-12K275V-4PGM offers robust combined Type 1+2 protection, delivering a rated impulse current of 12.5kA (10/350µs) per pole for comprehensive defence against transient overvoltages in low-voltage 3Ph+N TT systems (230/400V). Its 3+1 configuration across 4 poles ensures reliability in demanding industrial and commercial environments.
Featuring pluggable modules for swift replacement and remote indication for real-time monitoring, this device streamlines maintenance and system integration. Compact at 4 modules wide and conforming to high safety standards, it is an optimal solution for safeguarding critical installations against lightning and switching surges.
Technical Specifications
- Item number: 83120139
- Catalogue No: STPT12-12K275V-4PGM
- Description: Surge Protection Device Type 1+2, 12.5kA Iimp (10/350), 3Ph+N, 230/400V, 3+1 TT, 4 Poles, Pluggable, 4 Modules, Remote indication
- EAN/UPC Code: 8435297849162
- 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-N / N-PE
- System Configuration: TT, TNS
- Lightning Impulse Current (10/350) (LIMP): 12.5 kA
- Following Current (Ifi): 100 A
- Short Circuit Withstand (ISCCR): 25 kA
- Indication System: Yes
- Indication System Type: Green (OK) / Not green (replace) Microswitch
- Number of Poles: 4-Pole
- Torque Rating: 3 Nm
- 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): ≤1,3 kV
- Replacement Plug N-PE: 83120006
- 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: 0.66 kg
- Sell Pack Width: 78 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.62 kg
Product Code: 83120139
Key Benefits
- High impulse current rating of 12.5kA (10/350µs) per pole for superior surge protection
- Combined Type 1+2 protection ensures comprehensive defence against lightning and switching surges
- Pluggable modules enable quick and easy replacement, reducing downtime
- Remote indication system provides real-time status monitoring for proactive maintenance
- Compact 4-module width design saves installation space on DIN rail
- Suitable for TT and TNS system configurations, enhancing versatility
Compatibility
This surge protection device is designed for use in low-voltage 3-phase plus neutral (3Ph+N) TT and TNS electrical systems operating at 230/400V AC. It is compatible with DIN rail mounting systems and integrates seamlessly with industrial and commercial electrical installations requiring high-level surge protection.
Applications
- Industrial power distribution boards and panels
- Commercial building electrical installations
- Critical infrastructure requiring reliable surge protection
- Renewable energy systems with grid connection
- Data centres and telecommunications facilities
Frequently Asked Questions
What does the 3+1 pole configuration mean?
The 3+1 configuration refers to three phase conductors plus one neutral conductor, providing surge protection across all four poles for comprehensive system coverage.
Can this device be used in TN-C systems?
This device is specified for TT and TNS systems. It is not recommended for TN-C systems due to different earthing arrangements.
How does the remote indication work?
The remote indication uses a microswitch that changes state when the SPD condition changes, allowing connection to a remote monitoring system for status alerts.
Is the device RoHS compliant?
Yes, the STPT12-12K275V-4PGM is fully RoHS compliant, ensuring it meets environmental and safety standards.
Common Search Terms
surge protection device, SPD Type 1+2, 12.5kA surge protector, 3 phase surge protector, pluggable SPD, remote indication SPD, DIN rail surge protector, TT system SPD, 230/400V surge protection
| Manufacturer Part Number | 83120139 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297849162 |
| 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 |
| Remote Indication | Yes |
| System Type | TT |
| Alternative Product SKU | STPT12-12K275V-4PGM |
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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