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Mersen Surge Protector Type 2+3 SPD 2 Pole 230/277 Volt 10KA TNS
MPN: 83230116
Alt. SKU: STPT23-20K320V-2P
Special Price
£53.41
£44.51
Regular Price
£71.21
Why Choose the Surge Protection Device Type 2+3, STPT23-20K320V-2P?
This high-performance, pluggable surge protection device offers reliable protection for single-phase TN-S systems at 230/277V, effectively safeguarding sensitive equipment against transient overvoltages with a maximum discharge current of 20kA (8/20 μs). Its compact, two-module design ensures easy installation and seamless integration into new or existing electrical switchboards.
Engineered for professional use, the STPT23-20K320V-2P provides robust two-pole coverage and fast, tool-free replacement thanks to its pluggable modules, minimising downtime and maintenance costs. Ideal for industrial, commercial, and critical infrastructure applications requiring dependable surge mitigation.
Technical Specifications
- Item number: 83230116
- Catalogue No: STPT23-20K320V-2P
- Description: Surge Protection Device Type 2+3, 20kA Imax (8/20), 1Ph+N, 230/-; 277/-V, 2+0 TNS, 2 Poles, Pluggable, 2 Modules
- EAN/UPC Code: 8435297851011
- RoHS Compliant: Yes
- IEC SPD Type: Class II + III
- Format: Pluggable
- Nominal Operating Volt Rating (Un): 277
- 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: 2-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: 36 mm
- Product Length: 70 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.218 kg
- Sell Pack Width: 42 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.188 kg
Product Code: STPT23-20K320V-2P
Key Benefits
- High surge current capacity of 20kA (8/20 μs) for effective transient overvoltage protection.
- Pluggable two-module design allows for quick and easy replacement, reducing downtime.
- Suitable for single-phase TN-S systems at 230/277V, ensuring broad compatibility.
- Robust green/red indication system for clear status monitoring.
- Compact size with DIN rail mounting for seamless integration into electrical switchboards.
- Complies with IEC Class II + III standards for reliable surge protection.
Compatibility
The STPT23-20K320V-2P surge protection device is designed for use in single-phase TN-S electrical systems operating at nominal voltages of 230/277V AC. It is compatible with standard DIN rail mounting switchboards and can be integrated with backup fuses up to 63 A [gG]. Replacement plugs are available to ensure easy maintenance and continuity of protection.
Applications
- Industrial electrical installations requiring surge protection.
- Commercial buildings with sensitive electronic equipment.
- Critical infrastructure facilities needing reliable transient overvoltage mitigation.
- Electrical switchboards and distribution panels in single-phase TN-S systems.
- New installations and retrofitting existing electrical systems.
Frequently Asked Questions
What is the maximum discharge current of this device?
The maximum discharge current (Imax) is 20 kA (8/20 μs waveform).
Can this device be used in three-phase systems?
This device is designed specifically for single-phase TN-S systems and is not suitable for three-phase configurations.
How is the device status indicated?
The device features a green indication when operational and a non-green indication signalling the need for replacement.
Is the device easy to replace?
Yes, the pluggable two-module format allows for fast, tool-free replacement to minimise downtime.
Common Search Terms
Surge protection device, SPD Type 2+3, pluggable surge protector, 20kA surge arrester, TN-S system SPD, DIN rail surge protection, electrical transient protection, industrial surge protector, commercial surge protection device.
| Manufacturer Part Number | 83230116 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297851011 |
| Height | 70mm |
| Width | 36mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 2 Pole |
| Voltage | 230/277V |
| Maximum Continuous Voltage | 320V |
| Nominal Discharge Current | 10Ka |
| System Type | TNS |
| Alternative Product SKU | STPT23-20K320V-2P |
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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