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Mersen Surge Protector Type 2+3 SPD 4 Pole 230/400:277/480 Volt 10KA TNS
MPN: 83230133
Alt. SKU: STPT23-20K320V-4PM
Why Choose the STPT23-20K320V-4PM Surge Protection Device?
Engineered for robust protection in industrial and commercial three-phase systems, the STPT23-20K320V-4PM Type 2+3 Surge Protection Device offers 20kA Imax (8/20) safeguarding for 230/400V and 277/480V networks with 4+0 TNS configuration. Its four-pole, pluggable design ensures swift installation and easy module replacement without system downtime.
Remote indication functionality enables real-time status monitoring, supporting proactive maintenance and enhanced system reliability. Suited for demanding environments, this SPDs compact four-module format offers efficient panel integration and long-term operational security.
Technical Specifications
- Item number: 83230133
- Catalogue No: STPT23-20K320V-4PM
- 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, Remote indication
- EAN/UPC Code: 8435297849346
- 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) Microswitch
- 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: 0.41 kg
- Sell Pack Width: 78 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.366 kg
Product Code: 83230133
Key Benefits
- High surge current capacity with 20kA Imax (8/20) for reliable protection.
- Four-pole pluggable design allows quick installation and easy maintenance.
- Remote indication for real-time status monitoring and proactive maintenance.
- Compact four-module format ideal for efficient panel integration.
- Suitable for both 230/400V and 277/480V three-phase systems with TNS configuration.
- Durable PA66 CT1 housing ensures long-term operational security.
Compatibility
The STPT23-20K320V-4PM SPD is compatible with industrial and commercial three-phase electrical systems configured as 4+0 TNS, supporting nominal operating voltages of 230/400V and 277/480V. It integrates seamlessly with DIN rail mounting systems and is designed to work with backup fuses rated up to 63 A [gG]. Replacement plugs such as the 83230002 ensure easy module swaps without system downtime.
Applications
- Industrial power distribution panels
- Commercial building electrical installations
- Three-phase motor control centres
- Renewable energy systems requiring surge protection
- Data centres and critical infrastructure protection
Frequently Asked Questions
What is the maximum surge current this device can handle?
The STPT23-20K320V-4PM can handle a maximum discharge current (Imax) of 20 kA (8/20 µs waveform).
Does this SPD provide remote status indication?
Yes, it features a remote indication system with a green (OK) / not green (replace) microswitch for real-time monitoring.
Can this device be installed on a DIN rail?
Yes, the device is designed for DIN rail mounting, facilitating easy integration into existing panels.
Is the housing material suitable for industrial environments?
Yes, the housing is made from PA66 CT1, a durable material suitable for demanding industrial conditions.
Common Search Terms
surge protection device, SPD, Type 2+3 SPD, 20kA surge protector, 4-pole surge protector, pluggable SPD, 3-phase surge protection, DIN rail SPD, remote indication SPD, industrial surge protector
| Manufacturer Part Number | 83230133 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297849346 |
| 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-4PM |

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.

