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Mersen Surge Protector Type 2 SPD 4 Pole 230/400 Volt 20KA TT
MPN: 83020146
Alt. SKU: STPT2-40K275V-4PG
This product is discontinued.
Please view this replacement item.
Why Choose the STPT2-40K275V-4PG Surge Protection Device?
The STPT2-40K275V-4PG is a Type 2 surge protection device engineered for robust defence against transient overvoltages in 3-phase+neutral, TT systems (230/400V). With a maximum discharge current (Imax) of 40kA (8/20μs), this 4-pole, 4-module pluggable unit ensures reliable protection of sensitive industrial and commercial equipment.
Its modular, pluggable design guarantees quick installation and straightforward maintenance, enabling minimal downtime. Suitable for integration into distribution boards, it is ideal for safeguarding installations against lightning-induced and switching surges in critical infrastructure.
Technical Specifications
- Item number: 83020146
- Catalogue No: STPT2-40K275V-4PG
- Description: Surge Protection Device Type 2, 40kA Imax (8/20), 3Ph+N, 230/400V, 3+1 TT, 4 Poles, Pluggable, 4 Modules
- EAN/UPC Code: 8435297850823
- RoHS Compliant: Yes
- IEC SPD Type: Class II
- UL SPD Type: Type 2 Component Assembly
- Format: Pluggable
- Nominal Operating Volt Rating (Un): 230/400
- 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): 275 V
- Uc (N-PE): 277 V
- Up at In (N-PE): ≤1,5 kV
- Up at In (L-N): ≤1,3 kV
- VPR L-G: 1500 V
- VPR L-L: 1800 V
- VPR N-G: 700 V
- VPR L-N: 900 V
- Replacement Plug N-PE: 77707664
- Replacement Plug L-N: 77707654
- Product Width: 72 mm
- Product Length: 70 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.41 kg
- Sell Pack Width: 78 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.37 kg
Product Code: STPT2-40K275V-4PG
Key Benefits
- High surge current capacity of 40kA ensures robust protection against transient overvoltages.
- Modular and pluggable design allows for quick installation and easy maintenance.
- Visual indication system provides clear status for operational safety and timely replacement.
- Compatible with TT and TNS system configurations, enhancing versatility.
- Compact DIN rail mounting saves space in distribution boards.
- Complies with IEC Class II and UL Type 2 standards for assured quality and reliability.
Compatibility
The STPT2-40K275V-4PG is designed for use in 3-phase plus neutral TT and TNS electrical systems operating at 230/400V AC. It integrates seamlessly with standard distribution boards featuring DIN rail mounting and is suitable for installations requiring Type 2 surge protection devices compliant with IEC and UL standards.
Applications
- Industrial facilities requiring protection of sensitive equipment from surges.
- Commercial buildings with critical electrical infrastructure.
- Distribution boards in residential complexes with TT or TNS systems.
- Renewable energy installations needing reliable surge protection.
- Data centres and IT rooms where surge protection is critical for uptime.
Frequently Asked Questions
What is the maximum surge current this device can handle?
The STPT2-40K275V-4PG can handle a maximum discharge current (Imax) of 40kA (8/20µs waveform).
Is this device suitable for both TT and TNS systems?
Yes, it is compatible with both TT and TNS system configurations.
How does the indication system work?
The device features a green indicator to show operational status. If the indicator is not green, the module should be replaced.
Can this SPD be installed on a DIN rail?
Yes, the STPT2-40K275V-4PG is designed for DIN rail mounting, facilitating easy installation in distribution boards.
Common Search Terms
Type 2 surge protection device, 40kA SPD, 3-phase surge protector, pluggable SPD, DIN rail surge protector, TT system surge protection, 230/400V SPD, industrial surge protection, commercial surge protector, lightning surge protector
| Manufacturer Part Number | 83020146 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297850823 |
| Height | 70mm |
| Width | 72mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 4 Pole |
| Voltage | 230/400V |
| Maximum Continuous Voltage | 275V |
| Nominal Discharge Current | 20Ka |
| System Type | TT |
| Alternative Product SKU | STPT2-40K275V-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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