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Mersen Surge Protector Type 2+3 SPD 4 Pole 230/400:277/480 Volt 10KA TNS
MPN: 83230132
Alt. SKU: STPT23-20K320V-4P
Special Price
£104.63
£87.19
Regular Price
£139.50
Why Choose the Surge Protection Device Type 2+3 STPT23-20K320V-4P?
Engineered for robust protection in three-phase applications, the STPT23-20K320V-4P offers reliable surge suppression for 230/400V and 277/480V TN-S power systems. Its 20kA Imax (8/20) discharge capacity ensures effective defence against transient overvoltages, minimising downtime and equipment damage.
This pluggable, four-pole device is designed for straightforward replacement and maintenance, with a compact 4-module footprint suitable for modern distribution boards. Compliant with the latest standards, it delivers proven performance and long-term durability in demanding industrial environments.
Product Code: 83230132
Key Benefits
- High surge current capacity of 20kA ensures superior protection against transient surges.
- Pluggable design allows for easy installation and quick replacement, reducing maintenance time.
- Compact 4-module footprint saves space in distribution boards.
- Visual indication system clearly shows device status for timely maintenance.
- Complies with IEC Class II + III standards for reliable performance.
- Suitable for TN-S system configurations, providing versatile application.
Compatibility
The STPT23-20K320V-4P is compatible with three-phase TN-S power systems operating at 230/400V and 277/480V. It fits standard DIN rail mounting systems and supports up to 63 A back-up fuses, making it suitable for a wide range of industrial and commercial electrical installations.
Applications
- Industrial power distribution boards
- Commercial building electrical panels
- Renewable energy systems requiring surge protection
- Data centres and IT infrastructure protection
- Manufacturing plants and heavy machinery protection
Technical Specifications
- Item number: 83230132
- Catalogue No: STPT23-20K320V-4P
- Description: Surge Protection Device Type 2+3, 20kA Imax (8/20), 3Ph+N, 230/400; 277/480V, 4+0 TNS, 4 Poles, Pluggable, 4 Modules
- EAN/UPC Code: 8435297851141
- RoHS Compliant: Yes
- IEC SPD Type: Class II + III
- Format: Pluggable
- Nominal Operating Volt Rating (Un): 277/480
- AC or DC: AC
- Max Discharge Current : Imax (8/20): 20 kA
- Protection Modes: L-PE / N-PE
- System Configuration: TNS
- Combined Discharge Voltage (1,2/50) (Uoc): 10 kV
- 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
- MOV Response Time: ≤25
- Installation Mounting: DIN rail
- Replacement Plug L1: 83230002
- Product Width: 72 mm
- Product Length: 70 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.404 kg
- Sell Pack Width: 78 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.36 kg
Frequently Asked Questions
What type of electrical systems is this surge protection device suitable for?
The STPT23-20K320V-4P is designed for three-phase TN-S power systems operating at 230/400V and 277/480V.
How does the indication system work?
The device features a green indicator showing 'OK' status; if the indicator is not green, it signals that the unit needs replacement.
Can this device be installed on a DIN rail?
Yes, the device is designed for DIN rail mounting, facilitating easy installation in standard distribution boards.
What is the maximum back-up fuse rating for this SPD?
The maximum back-up fuse rating is 63 A [gG].
Common Search Terms
Surge protection device, SPD Type 2+3, 20kA surge arrester, pluggable SPD, 4-pole surge protector, TN-S system surge protection, DIN rail SPD, industrial surge protection, power line SPD, STPT23-20K320V-4P.
| Manufacturer Part Number | 83230132 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297851141 |
| 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 | TNS |
| Alternative Product SKU | STPT23-20K320V-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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