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Mersen Surge Protector Type 2+3 SPD 4 Pole 230/400: 277/480 Volt 10KA TT
MPN: 83230128
Alt. SKU: STPT23-20K320V-4PG
Special Price
£105.61
£88.01
Regular Price
£140.81
Why Choose the Surge Protection Device Type 2+3, 20kA Imax (8/20), 3Ph+N, 230/400; 277/480V, 3+1 TT, 4 Poles, Pluggable, 4 Modules STPT23-20K320V-4PG?
This pluggable surge protection device safeguards critical three-phase installations against transient overvoltages, delivering robust protection with a maximum discharge current of 20kA (8/20µs) across 4 poles for 3Ph+N systems. Its 3+1 TT configuration ensures comprehensive protection suitable for both 230/400V and 277/480V networks.
Designed for ease of maintenance and rapid modular replacement, the STPT23-20K320V-4PG is ideal for industrial environments requiring reliable Type 2+3 SPD performance. Its compact 4-module design streamlines installation in new or retrofit panels, ensuring ongoing system integrity and equipment safety.
Technical Specifications
- Item number: 83230128
- Catalogue No: STPT23-20K320V-4PG
- Description: Surge Protection Device Type 2+3, 20kA Imax (8/20), 3Ph+N, 230/400; 277/480V, 3+1 TT, 4 Poles, Pluggable, 4 Modules
- EAN/UPC Code: 8435297850793
- RoHS Compliant: Yes
- IEC SPD Type: Class II + III
- Format: Pluggable
- Nominal Operating Volt Rating (Un): 230/400
- AC or DC: AC
- Max Discharge Current : Imax (8/20): 20 kA
- Protection Modes: L-N / N-PE
- System Configuration: TT, TNS
- Combined Discharge Voltage (1,2/50) (Uoc): 10 kV
- 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: 63 A [gG]
- Housing Material: PA66 CT1
- Installation Mounting: DIN rail
- Uc (L-N): 320 V
- Uc (N-PE): 255 V
- Up at In (N-PE): ≤1,5 kV
- Up at In (L-N): ≤1,4 kV
- MCOV L-G: 175 V
- MCOV L-L: 350 V
- MCOV N-G: 277 V
- MCOV L-N: 175 V
- Replacement Plug N-PE: 83230000
- Replacement Plug L-N: 83230002
- Product Width: 72 mm
- Product Length: 70 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.389 kg
- Sell Pack Width: 78 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.344 kg
Product Code: 83230128
Key Benefits
- High surge current capacity of 20kA ensures robust protection against transient overvoltages.
- Pluggable modular design allows for easy maintenance and quick replacement of components.
- Suitable for both 230/400V and 277/480V three-phase systems with neutral.
- Integrated indication system provides clear visual status for operational reliability.
- Compact 4-module size optimises panel space and simplifies installation.
- Compatible with TT and TNS system configurations for versatile application.
Compatibility
The STPT23-20K320V-4PG is compatible with three-phase plus neutral (3Ph+N) electrical systems operating at nominal voltages of 230/400V and 277/480V. It supports TT and TNS earthing configurations and is designed for DIN rail mounting, making it suitable for integration into a wide range of industrial and commercial electrical distribution panels.
Applications
- Industrial electrical distribution boards requiring surge protection.
- Commercial buildings with three-phase electrical installations.
- Renewable energy systems needing transient overvoltage protection.
- Data centres and critical infrastructure to safeguard sensitive equipment.
- Retrofit projects where modular and pluggable SPD solutions are preferred.
Frequently Asked Questions
What is the maximum surge current this device can handle?
The device can handle a maximum discharge current (Imax) of 20kA with an 8/20µs waveform.
Is this surge protection device suitable for TN-S systems?
Yes, it supports both TT and TNS system configurations for flexible installation options.
How does the indication system work?
The device features a green indicator when operational; if the indicator is not green, the module should be replaced.
Can this SPD be mounted on a DIN rail?
Yes, the STPT23-20K320V-4PG is designed for DIN rail mounting for easy installation.
Are replacement plugs available for this device?
Replacement plugs are available with part numbers 83230000 for N-PE and 83230002 for L-N connections.
Common Search Terms
Surge protection device, SPD Type 2+3, 20kA surge protector, 3 phase plus neutral SPD, pluggable surge protector, DIN rail SPD, industrial surge protection, transient voltage suppressor, STPT23-20K320V-4PG, power line SPD.
| Manufacturer Part Number | 83230128 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297850793 |
| Height | 70mm |
| Width | 72mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 4 Pole |
| Voltage | 230/400 and 277/480V |
| Maximum Continuous Voltage | 320V |
| Nominal Discharge Current | 10Ka |
| System Type | TT |
| Alternative Product SKU | STPT23-20K320V-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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