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Mersen Surge Protector Type 2+3 SPD 2 Pole 230 Volt 10KA TT/TNS EMI Remote Indication
MPN: 83230403
Alt. SKU: STET23-20K275V-SPM
Special Price
£130.69
£108.91
Regular Price
£174.25
Why Choose the STET23-20K275V-SPM Surge Protection Device?
The STET23-20K275V-SPM offers robust Type 2+3 surge protection with an Imax of 20kA (8/20µs), designed for 1Ph+N, 230V systems. Its integrated EMI filter ensures reliable suppression of electromagnetic interference in TT and TNS configurations.
This monobloc, two-pole SPD is compact across four DIN modules, providing both visual and remote status indication for proactive monitoring. Engineered for commercial and industrial panels, it delivers superior performance, easy installation, and lasting protection against transient voltages.
Product Code: 83230403
Key Benefits
- High surge current capacity of 20kA (8/20µs) ensures reliable protection against transient overvoltages.
- Integrated EMI filter effectively suppresses electromagnetic interference, enhancing system stability.
- Compact monobloc design fits within four DIN modules, saving panel space.
- Dual indication system with LED microswitch and 3-pin dry contact for both local and remote monitoring.
- Suitable for TT and TNS system configurations, providing versatile installation options.
- Easy DIN rail mounting simplifies installation and maintenance.
Compatibility
The STET23-20K275V-SPM is compatible with single-phase plus neutral (1Ph+N) 230V AC electrical systems, particularly in TT and TNS earthing configurations. It is designed to integrate seamlessly into commercial and industrial electrical distribution panels that accommodate DIN rail mounted devices.
Applications
- Commercial electrical distribution panels requiring surge protection.
- Industrial control panels exposed to transient voltage surges.
- Systems needing EMI filtering to reduce electromagnetic interference.
- Buildings with TT or TNS earthing systems.
- Protection of sensitive electronic equipment in power lines.
Technical Specifications
- Item number: 83230403
- Catalogue No: STET23-20K275V-SPM
- Description: Surge Protection Device Type 2+3, 20kA Imax (8/20), 1Ph+N, 230/-V, EMI filter, SP TT/TNS, 2 Poles, Monobloc, 4 Modules, Remote indication
- EAN/UPC Code: 8435297849292
- RoHS Compliant: Yes
- IEC SPD Type: Class II + III
- Format: Monobloc
- Nominal Operating Volt Rating (Un): 230
- AC or DC: AC
- Protection Modes: L-N / N-PE
- System Configuration: TT, TNS
- Combined Discharge Voltage (1,2/50) (Uoc): 6 kV
- EMI Filter Common Mode: 82 dB
- EMI Filter Differential Mode: 74 dB
- Design Details: EMI filter
- Indication System: Yes
- Indication System Type: LED Microswitch / 3 pin dry contact
- Number of Poles: 2-Pole
- Torque Rating: 3 Nm
- Max. Back-Up Fuse: 20 A [gG]
- Installation Mounting: DIN rail
- Uc (L-N): 275 V
- Uc (N-PE): 320 V
- Uc (L-PE): 320 V
- Up at In (L-PE): ≤1,2 kV
- Product Width: 62 mm
- Product Length: 69 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.373 kg
- Sell Pack Width: 78 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.328 kg
Frequently Asked Questions
What types of systems is the STET23-20K275V-SPM compatible with?
It is compatible with single-phase plus neutral (1Ph+N) 230V AC systems, specifically designed for TT and TNS earthing configurations.
How does the indication system work?
The device features an LED microswitch for visual status indication and a 3-pin dry contact for remote monitoring, allowing proactive maintenance.
What is the maximum surge current the device can handle?
The STET23-20K275V-SPM can handle a maximum surge current (Imax) of 20kA with an 8/20µs waveform.
Can the device be installed on a standard DIN rail?
Yes, it is designed for easy installation on standard DIN rails commonly used in electrical panels.
Common Search Terms
Surge protection device, SPD 20kA, Type 2+3 surge protector, EMI filter SPD, DIN rail SPD, 230V surge protector, TT system surge protection, TNS system SPD, industrial surge protector, commercial electrical protection.
| Manufacturer Part Number | 83230403 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297849292 |
| Height | 69mm |
| Width | 62mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 2 Pole |
| Voltage | 230V |
| Maximum Continuous Voltage | 275V |
| Nominal Discharge Current | 10Ka |
| Remote Indication | Yes |
| System Type | TT/TNS |
| Alternative Product SKU | STET23-20K275V-SPM |
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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