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Mersen Surge Protector Type 2 SPD 1 Pole 277 Volt 20KA L-N
MPN: 83020108
Alt. SKU: STPT2-40K320V-1P
This product is discontinued.
Please view this replacement item.
Why Choose the STPT2-40K320V-1P Surge Protection Device?
The STPT2-40K320V-1P offers robust Type 2 surge protection for single-phase systems, safeguarding equipment from transient overvoltages with a peak discharge current (Imax) of 40kA (8/20 μs) and a nominal voltage of 277V L-N. Designed for reliability, it ensures operational continuity and compliance with IEC standards in demanding industrial and commercial environments.
This compact, single-pole, pluggable module facilitates quick installation and replacement, helping minimise downtime. Its 1-module width saves valuable DIN rail space, making it an efficient choice for modern low-voltage distribution boards.
Technical Specifications
- Item number: 83020108
- Catalogue No: STPT2-40K320V-1P
- Description: Surge Protection Device Type 2, 40kA Imax (8/20), 1Ph, 277V, L-N, 1 Pole, Pluggable, 1 Module
- EAN/UPC Code: 8435297850663
- RoHS Compliant: Yes
- IEC SPD Type: Class II
- UL SPD Type: Type 2 Component Assembly
- Format: Pluggable
- Nominal Operating Volt Rating (Un): 277
- AC or DC: AC
- Nominal Discharge Current (In) (8/20): 20 kA
- Max Discharge Current : Imax (8/20): 40 kA
- Protection Modes: L - N / L-PE / N-PE
- System Configuration: TNS, TNC, TT (only L-N)
- Short Circuit Withstand (ISCCR): 25 kA
- Indication System: Yes
- Indication System Type: Green (OK) / Not green (replace)
- Number of Poles: 1-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-N: 1000 V
- Replacement Plug L1: 83020003
- Product Width: 18 mm
- Product Length: 70 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.14 kg
- Sell Pack Width: 24 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.117 kg
Product Code: 83020108
Key Benefits
- High surge current capacity with 40kA peak discharge current for effective transient overvoltage protection.
- Compact, single-module design saves DIN rail space in distribution boards.
- Pluggable module allows quick and easy installation or replacement, reducing downtime.
- Visual indication system (green/replace) for easy status monitoring.
- Complies with IEC and UL standards ensuring reliable and safe operation.
- Suitable for multiple system configurations including TNS, TNC, and TT (L-N only).
Compatibility
The STPT2-40K320V-1P is compatible with single-phase low-voltage AC systems rated at 277V L-N. It supports system configurations including TNS, TNC, and TT (L-N only) and can be installed on standard DIN rails. It is designed to work with backup fuses up to 125 A [gG]. Replacement plugs are available under code 83020003.
Applications
- Industrial and commercial low-voltage electrical distribution boards.
- Protection of sensitive electrical and electronic equipment from transient surges.
- Single-phase power supply systems requiring Type 2 surge protection.
- Buildings with TNS, TNC, or TT earthing systems.
- Environments demanding compliance with IEC and UL surge protection standards.
Frequently Asked Questions
What is the maximum surge current this device can handle?
The STPT2-40K320V-1P can handle a maximum peak discharge current (Imax) of 40kA (8/20 μs waveform).
Can this SPD be used in three-phase systems?
This device is designed for single-phase systems only. For three-phase systems, a suitable multi-pole SPD should be selected.
How does the indication system work?
The device features a visual indication system that shows green when the SPD is operational. If the indicator is not green, the module should be replaced.
Is this SPD compliant with relevant standards?
Yes, it complies with IEC SPD Type Class II and UL Type 2 Component Assembly standards.
What is the mounting method for this device?
The SPD is designed for DIN rail mounting, allowing easy installation in standard distribution boards.
Common Search Terms
Surge protection device, Type 2 SPD, single-phase surge protector, 40kA surge protector, 277V surge protection, pluggable SPD, DIN rail SPD, transient voltage suppressor, IEC compliant SPD, industrial surge protector.
| Manufacturer Part Number | 83020108 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297850663 |
| Height | 70mm |
| Width | 18mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 1 pole |
| Voltage | 277V |
| Maximum Continuous Voltage | 320V |
| Nominal Discharge Current | 20Ka |
| System Type | L-N |
| Alternative Product SKU | STPT2-40K320V-1P |
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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