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Mersen Surge Protector Type 2 SPD 4 Pole 120/208 Volt 20KA TT
MPN: 83020144
Alt. SKU: STPT2-40K150V-4PG
Special Price
£133.49
£111.24
Regular Price
£180.62
Why Choose the STPT2-40K150V-4PG Surge Protection Device?
The STPT2-40K150V-4PG Surge Protection Device offers robust Type 2 protection for three-phase+neutral, 120/208V TT systems, delivering a maximum discharge current (Imax) of 40kA (8/20 μs waveform) across 4 poles. Designed to safeguard sensitive industrial equipment, it ensures continuous operation by reliably diverting transient surges and voltage spikes.
Featuring a pluggable, four-module construction for straightforward replacement and maintenance, this SPD is ideal for panel boards and distribution circuits. Its compact design supports space efficiency, while compliance with IEC standards ensures proven performance and safety for demanding electrical environments.
Technical Specifications
- Item number: 83020144
- Catalogue No: STPT2-40K150V-4PG
- Description: Surge Protection Device Type 2, 40kA Imax (8/20), 3Ph+N, 120/208V, 3+1 TT, 4 Poles, Pluggable, 4 Modules
- EAN/UPC Code: 8435297850809
- RoHS Compliant: Yes
- IEC SPD Type: Class II
- UL SPD Type: Type 2 Component Assembly
- Format: Pluggable
- Nominal Operating Volt Rating (Un): 120/208
- 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)
- Number of Poles: 4-Pole
- Torque Rating: 3 Nm
- Max. Back-Up Fuse: 125 A [gG]
- Housing Material: PA66 CT1
- Installation Mounting: DIN rail
- Uc (L-N): 175 V
- Uc (N-PE): 277 V
- Up at In (N-PE): ≤1,5 kV
- Up at In (L-N): ≤1 kV
- VPR L-G: 1200 V
- VPR L-L: 1200 V
- VPR N-G: 700 V
- VPR L-N: 700 V
- Replacement Plug N-PE: 77707664
- Replacement Plug L-N: 77707653
- Product Width: 72 mm
- Product Length: 70 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.415 kg
- Sell Pack Width: 78 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.373 kg
Product Code: STPT2-40K150V-4PG
Key Benefits
- High surge current capacity with 40kA maximum discharge current ensures reliable protection against transient surges.
- Pluggable four-module design allows easy replacement and maintenance, reducing downtime.
- Compact size saves panel space and simplifies installation on DIN rail.
- Visual indication system (green/red) provides quick status verification.
- Compliant with IEC and UL standards for assured safety and performance.
- Suitable for TT and TNS system configurations, providing versatile application.
Compatibility
The STPT2-40K150V-4PG is compatible with industrial three-phase plus neutral 120/208V TT and TNS electrical systems. It integrates seamlessly with panel boards and distribution circuits requiring Type 2 surge protection. Replacement plugs for N-PE and L-N connections ensure continued operation and ease of maintenance.
Applications
- Industrial power distribution panels
- Commercial building electrical systems
- Protection of sensitive electronic equipment from transient overvoltages
- Renewable energy installations requiring surge protection
- Manufacturing facilities with critical machinery
Frequently Asked Questions
What is the maximum surge current this SPD can handle?
The STPT2-40K150V-4PG can handle a maximum discharge current (Imax) of 40kA using an 8/20 µs waveform.
Is this device suitable for both TT and TNS systems?
Yes, this surge protection device is designed for use in both TT and TNS system configurations.
How does the indication system work?
The device features a green indicator when operating correctly and changes from green to another colour to signal replacement is needed.
Can the modules be replaced individually?
Yes, the four-module pluggable design allows for straightforward replacement of individual modules, minimising downtime.
Common Search Terms
Surge protection device, SPD Type 2, 40kA surge protector, 120/208V surge protector, 4-pole SPD, pluggable surge protector, industrial surge protection, DIN rail SPD, TT system surge protector, TNS system SPD.
| Manufacturer Part Number | 83020144 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297850809 |
| Height | 70mm |
| Width | 72mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 4 Pole |
| Voltage | 120/208V |
| Maximum Continuous Voltage | 150V |
| Nominal Discharge Current | 20Ka |
| System Type | TT |
| Alternative Product SKU | STPT2-40K150V-4PG |
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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