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Mersen Surge Protector Type 2+3 SPD 2 Pole 230 Volt 10KA TT Remote Indication
MPN: 83230111
Alt. SKU: STPT23-20K275V-2PG-LFM
Why Choose the STPT23-20K275V-2PG-LFM Surge Protection Device?
The Type 2+3 SPD offers reliable overvoltage protection with a maximum discharge current of 20kA (8/20µs), making it ideal for safeguarding 1Ph+N, 230V TT installations. Its pluggable, 2-pole design in a compact 2-module format ensures straightforward retrofitting and easy maintenance.
Engineered as leakage current free, the device is well-suited for sensitive electrical systems and features remote indication for rapid status monitoring. Select the STPT23-20K275V-2PG-LFM for robust, consistent protection and operational efficiency in mission-critical environments.
Technical Specifications
- Item number: 83230111
- Catalogue No: STPT23-20K275V-2PG-LFM
- Description: Surge Protection Device Type 2+3, 20kA Imax (8/20), 1Ph+N, 230/-V, Leakage current free, 1+1 TT, 2 Poles, Pluggable, 2 Modules, Remote indication
- EAN/UPC Code: 8435297849407
- RoHS Compliant: Yes
- IEC SPD Type: Class II + III
- Format: Pluggable
- Nominal Operating Volt Rating (Un): 230
- AC or DC: AC
- Max Discharge Current : Imax (8/20): 20 kA
- Protection Modes: L-N / N-PE
- System Configuration: TT, TNS
- Combined Discharge Voltage (1,2/50) (Uoc): 10 kV
- Following Current (Ifi): 100 A
- Short Circuit Withstand (ISCCR): 25 kA
- Indication System: Yes
- Indication System Type: Green (OK) / Not green (replace) Microswitch
- Number of Poles: 2-Pole
- Torque Rating: 3 Nm
- Max. Back-Up Fuse: 63 A [gG]
- Housing Material: PA66 CT1
- Installation Mounting: DIN rail
- Uc (L-N): 275 V
- Uc (N-PE): 255 V
- Up at In (N-PE): ≤1,5 kV
- Up at In (L-N): ≤1,5 kV
- Replacement Plug N-PE: 83230000
- Replacement Plug L-N: 83230003
- Product Width: 36 mm
- Product Length: 70 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.21 kg
- Sell Pack Width: 42 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.18 kg
Product Code: STPT23-20K275V-2PG-LFM
Key Benefits
- High surge current capacity of 20kA ensures robust protection against transient overvoltages.
- Leakage current free design ideal for sensitive electrical installations.
- Pluggable 2-pole format allows easy installation and maintenance.
- Remote indication feature enables quick status monitoring and maintenance planning.
- Compact 2-module width saves space on DIN rail installations.
- Suitable for TT and TNS system configurations, providing versatile application.
Compatibility
This surge protection device is compatible with single-phase plus neutral (1Ph+N) 230V AC systems, particularly suited for TT and TNS earthing configurations. It can be integrated into existing DIN rail mounted electrical panels and is designed to work with backup fuses up to 63 A [gG]. Replacement plugs for N-PE and L-N poles are available for maintenance and servicing.
Applications
- Industrial and commercial electrical installations requiring surge protection.
- Protection of sensitive equipment in mission-critical environments.
- Electrical distribution boards in TT and TNS systems.
- Retrofitting and upgrading existing surge protection setups.
- Systems where leakage current free operation is essential.
Frequently Asked Questions
What is the maximum discharge current of the STPT23-20K275V-2PG-LFM?
The maximum discharge current is 20 kA (8/20µs), providing robust protection against surges.
Is this device suitable for sensitive electrical systems?
Yes, it is leakage current free, making it ideal for sensitive systems where leakage currents must be minimised.
Can this SPD be used in TNS systems?
Yes, it is compatible with both TT and TNS system configurations.
Does the device provide any indication of its operational status?
Yes, it features a green (OK) / not green (replace) microswitch indication system and supports remote indication for easy monitoring.
What is the mounting method for this SPD?
The device is designed for DIN rail mounting, allowing easy installation in standard electrical enclosures.
Common Search Terms
surge protection device, SPD Type 2+3, 20kA surge protector, leakage current free SPD, pluggable surge protector, 230V TT system SPD, DIN rail surge protection, remote indication SPD, industrial surge protection
| Manufacturer Part Number | 83230111 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297849407 |
| Height | 70mm |
| Width | 36mm |
| 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 |
| Alternative Product SKU | STPT23-20K275V-2PG-LFM |

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.

