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Mersen Surge Protector Type 2+3 SPD 3 Pole 400 Volt 10KA TNC Remote Indication
MPN: 83230121
Alt. SKU: STPT23-20K275V-3P-LFM
Special Price
£101.60
£84.67
Regular Price
£137.48
Why Choose the Surge Protection Device Type 2+3, 20kA Imax, 3Ph, 400V?
The STPT23-20K275V-3P-LFM offers robust surge protection for 3-phase, 400V TNC systems, delivering a maximum discharge current of 20kA (8/20 µs) across three poles. Engineered to be leakage current free, this device ensures safe, maintenance-free operation and is ideal for critical industrial installations requiring high reliability.
Its pluggable, three-module design facilitates easy installation and swift replacement, while integrated remote indication provides convenient status monitoring. Trust this surge protection solution for durable, compliant, and future-ready defence against transient overvoltages in demanding environments.
Technical Specifications
- Item number: 83230121
- Catalogue No: STPT23-20K275V-3P-LFM
- Description: Surge Protection Device Type 2+3, 20kA Imax (8/20), 3Ph, -/400V, Leakage current free, 3+0 TNC, 3 Poles, Pluggable, 3 Modules, Remote indication
- EAN/UPC Code: 8435297851202
- 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-PE(N)
- System Configuration: TNC
- 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: 3-Pole
- Torque Rating: 3 Nm
- Max. Back-Up Fuse: 63 A [gG]
- Housing Material: PA66 CT1
- MOV Response Time: ≤100 ns
- Installation Mounting: DIN rail
- Replacement Plug L1: 83230003
- Product Width: 54 mm
- Product Length: 70 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.305 kg
- Sell Pack Width: 63 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.276 kg
Product Code: 83230121
Key Benefits
- High surge current capacity of 20kA ensures reliable protection against transient overvoltages.
- Leakage current free design enhances safety and reduces maintenance requirements.
- Pluggable three-module format allows for quick installation and easy replacement.
- Integrated remote indication system provides real-time status monitoring.
- Suitable for 3-phase, 400V TNC systems, meeting industrial power distribution needs.
- Complies with IEC Class II + III standards for surge protection devices.
Compatibility
This surge protection device is compatible with 3-phase, 230/400V AC TNC electrical systems. It is designed for installation on DIN rails and works effectively with backup fuses up to 63 A [gG]. Replacement plugs are available with catalogue number 83230003 for maintenance and upgrades.
Applications
- Industrial power distribution boards and control panels.
- Protection of sensitive electronic equipment in manufacturing plants.
- Commercial buildings with 3-phase electrical supply systems.
- Renewable energy installations requiring surge protection.
- Data centres and critical infrastructure facilities.
Frequently Asked Questions
What does leakage current free mean and why is it important?
Leakage current free means the device does not allow any continuous current to flow through it during normal operation, enhancing safety and reducing energy loss. This is particularly important in sensitive installations to avoid nuisance tripping and maintain system integrity.
Can this device be used in single-phase systems?
This specific model is designed for 3-phase, 400V TNC systems. For single-phase applications, a different SPD model suited to those requirements should be selected.
How does the remote indication system work?
The remote indication system uses a microswitch that changes state when the device is functioning correctly (green) or needs replacement (not green), allowing remote monitoring of the SPD status.
What is the significance of the 8/20 µs waveform in the max discharge current rating?
The 8/20 µs waveform is a standard test impulse that simulates typical surge currents caused by lightning or switching events. The max discharge current rating of 20kA (8/20) indicates the device can safely handle surges of this magnitude.
Common Search Terms
Surge protection device, SPD 3-phase, 20kA surge protector, Type 2+3 SPD, 400V surge protection, pluggable surge protector, industrial surge protection, TNC system SPD, remote indication SPD, DIN rail surge protector.
| Manufacturer Part Number | 83230121 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297851202 |
| Height | 70mm |
| Width | 54mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 3 Pole |
| Voltage | 400V |
| Maximum Continuous Voltage | 275V |
| Nominal Discharge Current | 10Ka |
| Remote Indication | Yes |
| System Type | TNC |
| Alternative Product SKU | STPT23-20K275V-3P-LFM |
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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