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Mersen Surge Protector Type 2+3 SPD 2 Pole 12 Volt 3KA TT/TNS
MPN: 83230500
Alt. SKU: STMT23-6K20V-SP-S
Why Choose the STMT23-6K20V-SP-S Surge Protection Device?
This slim Type 2+3 surge protection device is engineered for single-phase TT and TNS systems, delivering robust protection with a maximum surge current of 6kA (8/20 μs) across 1Ph+N arrangements. The monobloc, 2-pole design ensures reliable performance, while its compact 1-module width enables easy integration into space-constrained panels.
With a 12/-V operating range, the STMT23-6K20V-SP-S is ideal for safeguarding sensitive installations against transients, ensuring system longevity and operational safety. Select this device for dependable, efficient surge protection in professional electrical environments.
Technical Specifications
- Item number: 83230500
- Catalogue No: STMT23-6K20V-SP-S
- Description: Surge Protection Device Type 2+3, 6kA Imax (8/20), 1Ph+N, 12/-V, Slim, SP TT/TNS, 2 Poles, Monobloc, 1 Module
- EAN/UPC Code: 8435297850410
- RoHS Compliant: Yes
- IEC SPD Type: Class II + III
- Format: Slim Monobloc
- Nominal Operating Volt Rating (Un): 12
- AC or DC: AC
- Nominal Discharge Current (In) (8/20): 3 kA
- Max Discharge Current : Imax (8/20): 6 kA
- Protection Modes: L-N / L-PE
- System Configuration: TT, TNS
- Combined Discharge Voltage (1,2/50) (Uoc): 6 kV
- Short Circuit Withstand (ISCCR): 10 kA
- Design Details: Slim
- Number of Poles: 2-Pole
- Torque Rating: 0.7 Nm
- Max. Back-Up Fuse: 63 A [gG]
- Installation Mounting: DIN rail
- Uc (L-N): 20 V
- Up at In (N-PE): ≤0,7 kV
- Up at In (L-N): ≤0,22 kV
- Up at In (L-PE): ≤0,7 kV
- MCOV L-N: 175 V
- Product Width: 18 mm
- Product Length: 65 mm
- Product Height: 85 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.083 kg
- Sell Pack Width: 24 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.062 kg
Product Code: STMT23-6K20V-SP-S
Key Benefits
- Compact slim monobloc design for easy installation in limited space.
- High surge current capacity of 6 kA ensures robust protection against transient overvoltages.
- Suitable for single-phase TT and TNS systems, providing versatile application.
- Reliable 2-pole protection covering L-N and L-PE modes.
- DIN rail mounting simplifies integration into existing electrical panels.
- Complies with IEC Class II + III standards for assured quality and safety.
Compatibility
The STMT23-6K20V-SP-S is compatible with single-phase TT and TNS electrical systems operating at 12 V nominal voltage. It integrates seamlessly with standard DIN rail-mounted distribution boards and can be used alongside other protective devices with a maximum back-up fuse rating of 63 A [gG].
Applications
- Protection of residential and commercial electrical installations.
- Safeguarding sensitive electronic equipment from transient voltage spikes.
- Use in industrial control panels requiring compact surge protection solutions.
- Installation in power distribution boards for enhanced system reliability.
Frequently Asked Questions
What type of systems is this surge protection device suitable for?
The STMT23-6K20V-SP-S is designed for single-phase TT and TNS systems.
What is the maximum surge current this device can handle?
It can handle a maximum surge current of 6 kA (8/20 μs waveform).
How is the device installed?
The device is mounted on a standard DIN rail, allowing for easy installation within electrical panels.
Is this surge protector RoHS compliant?
Yes, the STMT23-6K20V-SP-S complies with RoHS standards.
Common Search Terms
surge protector, SPD, Type 2+3 surge protection, 6kA surge device, single-phase surge protector, DIN rail SPD, slim surge protection device, TT system SPD, TNS system SPD, electrical transient protection
| Manufacturer Part Number | 83230500 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297850410 |
| Height | 65mm |
| Width | 18mm |
| Depth | 85mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 2 Pole |
| Voltage | 12V |
| Maximum Continuous Voltage | 20V |
| Nominal Discharge Current | 3Ka |
| System Type | TT/TNS |
| Alternative Product SKU | STMT23-6K20V-SP-S |

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.

