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Mersen Surge Protector Type 2 SPD 2 Pole 277 Volt 20KA TT
MPN: 83020118
Alt. SKU: STPT2-40K320V-2PG
This product is discontinued.
Please view this replacement item.
Why Choose the STPT2-40K320V-2PG Surge Protection Device?
The STPT2-40K320V-2PG is a Type 2 surge protection device engineered for robust protection of single-phase + neutral (1Ph+N) TT systems, rated at 277V. With a maximum discharge current (Imax) of 40kA (8/20 μs waveform), this unit is ideal for safeguarding sensitive equipment from transient overvoltages and lightning-induced surges.
Featuring a pluggable design for fast replacement, the compact 2-pole, 2-module device is simple to install on DIN rails and is perfectly suited for industrial switchboards and control panels. The STPT2-40K320V-2PG delivers reliable, maintenance-friendly surge protection, ensuring uninterrupted system performance and enhanced equipment lifespan.
Technical Specifications
- Item number: 83020118
- Catalogue No: STPT2-40K320V-2PG
- Description: Surge Protection Device Type 2, 40kA Imax (8/20), 1Ph+N, 277/-V, 1+1 TT, 2 Poles, Pluggable, 2 Modules
- EAN/UPC Code: 8435297850755
- 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
- 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: 2-Pole
- Torque Rating: 3 Nm
- Max. Back-Up Fuse: 125 A [gG]
- 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 N-G: 700 V
- VPR L-N: 1200 V
- Replacement Plug N-PE: 83020000
- Replacement Plug L-N: 83020003
- Product Width: 36 mm
- Product Length: 70 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.244 kg
- Sell Pack Width: 42 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.194 kg
Product Code: STPT2-40K320V-2PG
Key Benefits
- High surge current capacity of 40kA ensures robust protection against transient overvoltages.
- Pluggable design allows for quick and easy replacement, reducing downtime.
- Compact 2-pole, 2-module format saves space in industrial switchboards and control panels.
- Visual indication system provides clear status of device condition for maintenance.
- Suitable for TT and TNS system configurations, offering versatile application.
- Reliable DIN rail mounting ensures secure installation.
Compatibility
The STPT2-40K320V-2PG is compatible with single-phase plus neutral (1Ph+N) TT and TNS electrical systems operating at 277V nominal voltage. It integrates seamlessly with industrial switchboards and control panels designed for DIN rail mounting, and supports coordination with backup fuses up to 125 A [gG]. Replacement plugs are available for both N-PE and L-N protection modes.
Applications
- Industrial switchboards and control panels requiring surge protection.
- Electrical installations in TT and TNS system configurations.
- Protection of sensitive equipment from lightning and switching surges.
- Commercial and industrial buildings with DIN rail mounted electrical components.
Frequently Asked Questions
What type of systems is the STPT2-40K320V-2PG designed for?
It is designed for single-phase plus neutral (1Ph+N) TT and TNS systems operating at 277V.
Can I replace the surge protection modules easily?
Yes, the device features a pluggable design allowing quick replacement of surge modules.
What is the maximum surge current the device can handle?
The device can handle a maximum discharge current (Imax) of 40kA with an 8/20 μs waveform.
Does the device provide any indication of its operational status?
Yes, it includes a green (OK) / not green (replace) indication system for easy monitoring.
Common Search Terms
surge protection device, SPD Type 2, 40kA surge protector, 277V surge protector, pluggable SPD, DIN rail surge protector, industrial surge protection, TT system SPD, TNS system surge protector
| Manufacturer Part Number | 83020118 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297850755 |
| Height | 70mm |
| Width | 36mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 2 Pole |
| Voltage | 277V |
| Maximum Continuous Voltage | 320V |
| Nominal Discharge Current | 20Ka |
| System Type | TT |
| Alternative Product SKU | STPT2-40K320V-2PG |
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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