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Mersen Surge Protector Type 2 SPD 4 Pole 277/480 Volt 20KA TT Remote Indication
MPN: 83020149
Alt. SKU: STPT2-40K320V-4PGM
This product is discontinued. Please view this replacement item.
Why Choose the STPT2-40K320V-4PGM Surge Protection Device?
Engineered for robust protection, this Type 2 Surge Protection Device safeguards three-phase plus neutral systems (277/480V, 3+1 TT) against transient overvoltages, offering Imax 40kA discharge capacity (8/20 μs). Its pluggable, four-pole, four-module design allows swift installation and straightforward maintenance in critical industrial and commercial electrical panels.
Remote indication functionality enables efficient real-time status monitoring, supporting preventative maintenance and minimising downtime. Built for reliability and compliance, the STPT2-40K320V-4PGM is an ideal choice for demanding environments requiring high-performance surge protection with ongoing monitoring capability.
Technical Specifications
- Item number: 83020149
- Catalogue No: STPT2-40K320V-4PGM
- Description: Surge Protection Device Type 2, 40kA Imax (8/20), 3Ph+N, 277/480V, 3+1 TT, 4 Poles, Pluggable, 4 Modules, Remote indication
- EAN/UPC Code: 8435297850861
- RoHS Compliant: Yes
- IEC SPD Type: Class II
- UL SPD Type: Type 2 Component Assembly
- Format: Pluggable
- Nominal Operating Volt Rating (Un): 277/480
- AC or DC: AC
- Nominal Discharge Current (In) (8/20): 20 kA
- Max Discharge Current : Imax (8/20): 40 kA
- Protection Modes: L-N / N-PE
- System Configuration: TT, TNS
- 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): 320 V
- Uc (N-PE): 277 V
- Up at In (N-PE): ≤1,5 kV
- Up at In (L-N): ≤1,5 kV
- VPR L-G: 1500 V
- VPR L-L: 2000 V
- VPR N-G: 700 V
- VPR L-N: 1200 V
- Replacement Plug N-PE: 77707664
- Replacement Plug L-N: 77707671
- Product Width: 72 mm
- Product Length: 70 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.463 kg
- Sell Pack Width: 78 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.421 kg
Product Code: STPT2-40K320V-4PGM
Key Benefits
- High surge current capacity of 40kA (8/20 μs) ensures robust protection against transient overvoltages.
- Pluggable four-pole, four-module design allows for quick installation and easy maintenance.
- Remote indication system enables real-time monitoring, reducing downtime and supporting preventative maintenance.
- Compatible with three-phase plus neutral systems (277/480V, 3+1 TT), suitable for industrial and commercial applications.
- Compliant with IEC Class II and UL Type 2 standards for reliable and safe operation.
Compatibility
The STPT2-40K320V-4PGM is designed for use in TT and TNS system configurations, specifically for three-phase plus neutral (3+1) systems operating at 277/480V AC. It is suitable for DIN rail mounting in industrial and commercial electrical panels requiring Type 2 surge protection.
Applications
- Industrial electrical distribution panels
- Commercial building electrical systems
- Critical infrastructure requiring surge protection
- Renewable energy installations with 3-phase systems
- Data centres and IT facilities needing reliable transient overvoltage protection
Frequently Asked Questions
What does the remote indication feature do?
The remote indication feature provides real-time status of the surge protection device through a microswitch, allowing for remote monitoring and timely maintenance without needing physical inspection.
Is this device suitable for all three-phase systems?
This device is specifically designed for three-phase plus neutral (3+1) TT and TNS systems at 277/480V. It may not be suitable for other system types or voltages.
Can the modules be replaced individually?
Yes, the device features pluggable modules that can be replaced individually using the specified replacement plugs (N-PE: 77707664, L-N: 77707671) to maintain protection without replacing the entire unit.
What standards does this SPD comply with?
The STPT2-40K320V-4PGM complies with IEC Class II and UL Type 2 Component Assembly standards, ensuring reliable and safe surge protection performance.
Common Search Terms
Type 2 surge protector, 40kA SPD, 3-phase surge protection, pluggable surge device, 277/480V surge protector, remote indication SPD, DIN rail SPD, industrial surge protection, commercial surge protector, transient voltage surge suppressor
| Manufacturer Part Number | 83020149 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297850861 |
| Height | 70mm |
| 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 | STPT2-40K320V-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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