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Mersen Surge Protector Type 2 SPD 4 Pole 277/480 Volt 20KA TNS
MPN: 83020154
Alt. SKU: STPT2-40K320V-4P
This product is discontinued. Please view this replacement item.
Why Choose the STPT2-40K320V-4P Surge Protection Device?
The STPT2-40K320V-4P Surge Protection Device offers reliable Type 2 protection for three-phase+neutral systems, with a maximum discharge current (Imax) of 40kA (8/20µs), making it ideal for safeguarding industrial and commercial electrical installations operating at 277/480V in TNS configurations.
Engineered for efficiency and safety, this pluggable, four-pole device fits neatly into four modules, providing quick installation, easy maintenance, and robust protection against transient overvoltages, thereby minimising equipment downtime and ensuring ongoing operational resilience.
Technical Specifications
- Item number: 83020154
- Catalogue No: STPT2-40K320V-4P
- Description: Surge Protection Device Type 2, 40kA Imax (8/20), 3Ph+N, 277/480V, 4+0 TNS, 4 Poles, Pluggable, 4 Modules
- EAN/UPC Code: 8435297851240
- 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-PE / N-PE
- System Configuration: TNS
- 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
- MOV Response Time: ≤25
- Installation Mounting: DIN rail
- VPR L-G: 1000 V
- VPR L-L: 2000 V
- VPR N-G: 1000 V
- VPR L-N: 2000 V
- Replacement Plug N-PE: 77707671
- 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: 0.444 kg
- Sell Pack Width: 78 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.399 kg
Product Code: STPT2-40K320V-4P
Key Benefits
- High surge current capacity with 40kA maximum discharge current for robust protection.
- Pluggable design allows for quick installation and easy maintenance.
- Four-pole configuration supports three-phase plus neutral TNS systems.
- Visual indication system for easy status monitoring and timely replacement.
- Compact size fits into four modules, optimising panel space.
- Complies with IEC Class II and UL Type 2 standards ensuring quality and safety.
Compatibility
This surge protection device is compatible with industrial and commercial electrical installations operating at 277/480V in TNS system configurations. It is designed to be mounted on standard DIN rails and works effectively with backup fuses up to 125 A [gG]. Replacement plugs for N-PE and L-N connections are available under part number 77707671.
Applications
- Industrial power distribution boards
- Commercial building electrical systems
- Three-phase motor control centres
- Renewable energy installations requiring surge protection
- Data centres and critical infrastructure protection
Frequently Asked Questions
What system configurations does the STPT2-40K320V-4P support?
It is designed for TNS system configurations with three-phase plus neutral wiring.
How does the indication system work?
The device features a green indicator when functioning correctly; if the indicator is not green, the device should be replaced.
Can this device be used with backup fuses?
Yes, it supports backup fuses up to 125 A [gG] as per the technical specifications.
Is the device RoHS compliant?
Yes, the STPT2-40K320V-4P is fully RoHS compliant.
Common Search Terms
Surge protection device, Type 2 SPD, 40kA surge protector, 3-phase surge protector, pluggable SPD, DIN rail surge protector, industrial surge protection, TNS system SPD, transient voltage suppressor.
| Manufacturer Part Number | 83020154 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297851240 |
| 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 |
| System Type | TNS |
| Alternative Product SKU | STPT2-40K320V-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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