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Mersen Surge Protector Type 1+2 SPD 4 Pole 277/480 Volt 20KA TT Remote Indication
MPN: 83120141
Alt. SKU: STPT12-12K320V-4PGM
This product is discontinued. Please view this replacement item.
Why Choose the STPT12-12K320V-4PGM Surge Protection Device?
Engineered for robust protection in 3-phase+N 277/480V TT and TN systems, this pluggable Type 1+2 SPD offers a high impulse current rating of 12.5kA Iimp (10/350) per pole across 4 poles. Its innovative 3+1 configuration safeguards critical equipment against direct and indirect lightning surges as well as transient overvoltages.
Featuring remote indication for real-time status monitoring and a modular pluggable design for rapid maintenance, this SPD is ideal for demanding industrial and commercial installations requiring maximum uptime and compliance. Ensure reliable, future-proof surge protection with the STPT12-12K320V-4PGM.
Product Code: STPT12-12K320V-4PGM
Key Benefits
- High impulse current rating of 12.5kA per pole for superior surge protection
- Pluggable modular design enables quick and easy maintenance
- Remote indication system for real-time operational status monitoring
- Suitable for 3-phase+N 277/480V TT and TN systems ensuring broad compatibility
- Complies with IEC Class I+II standards for reliable surge suppression
- Compact size with DIN rail mounting for easy installation in industrial panels
Compatibility
This surge protection device is compatible with 3-phase plus neutral (3Ph+N) electrical systems operating at 277/480V, specifically designed for TT and TNS system configurations. It supports protection modes L-N and N-PE and can be integrated seamlessly into industrial and commercial electrical distribution boards with DIN rail mounting.
Applications
- Industrial electrical distribution panels
- Commercial building power protection
- Lightning and transient overvoltage protection in TT and TN systems
- Critical infrastructure requiring high reliability and uptime
- Renewable energy installations with sensitive electronics
Technical Specifications
- Item number: 83120141
- Catalogue No: STPT12-12K320V-4PGM
- Description: Surge Protection Device Type 1+2, 12.5kA Iimp (10/350), 3Ph+N, 277/480V, 3+1 TT, 4 Poles, Pluggable, 4 Modules, Remote indication
- EAN/UPC Code: 8435297851547
- RoHS Compliant: Yes
- IEC SPD Type: Class I+II
- Format: Pluggable
- Nominal Operating Volt Rating (Un): 277/480
- 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
- Max. Back-Up Fuse: 200 A [gG]
- Housing Material: PA66 CT1
- Installation Mounting: DIN rail
- Uc (L-N): 320 V
- Uc (N-PE): 255 V
- Up at In (N-PE): ≤1,5 kV
- Up at In (L-N): ≤1,4 kV
- Replacement Plug N-PE: 83120006
- Replacement Plug L-N: 83120003
- Product Width: 72 mm
- Product Length: 76 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.675 kg
- Sell Pack Width: 78 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.63 kg
Frequently Asked Questions
What type of electrical systems is this SPD suitable for?
The STPT12-12K320V-4PGM is designed for 3-phase plus neutral (3Ph+N) systems operating at 277/480V, specifically compatible with TT and TNS system configurations.
Does this device provide remote status indication?
Yes, it features a remote indication system with a microswitch that signals green when operational and not green when replacement is needed.
Can this SPD be easily maintained or replaced?
Yes, its pluggable modular design allows for quick replacement of modules without rewiring, minimizing downtime.
What is the maximum discharge current of this SPD?
The maximum discharge current (Imax) is 50 kA (8/20 µs waveform), providing robust surge protection.
Common Search Terms
surge protection device, SPD 12.5kA, 3-phase surge protector, 277/480V SPD, pluggable surge protector, Type 1+2 SPD, industrial surge protection, remote indication SPD, DIN rail SPD, lightning surge protector
| Manufacturer Part Number | 83120141 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297851547 |
| Height | 76mm |
| Width | 72mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 4 Pole |
| Voltage | 277/480V |
| Maximum Continuous Voltage | 320V |
| Nominal Discharge Current | 20Ka |
| Remote Indication | Yes |
| System Type | TT |
| Alternative Product SKU | STPT12-12K320V-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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