K1-2PG275-M Mersen Surge Protector Type 1+2 SPD 2 Pole 230 Volt 20KA TT Remote Indication

Why Choose the M K1-2PG275-M SPD?

The M K1-2PG275-M is a combined Type 1+2 surge protective device (SPD), offering robust defence against transient overvoltages in industrial and commercial electrical installations. With a nominal voltage (Uc) of 275Vac and a 1+1 configuration, it is optimised for systems requiring reliable protection at the main distribution board level.

This SPD delivers rapid response and high surge current handling capacity, ensuring operational continuity and safeguarding sensitive equipment from the damaging effects of lightning strikes and switching surges. Its compact design and straightforward DIN rail mounting facilitate easy integration into existing panels, making it an essential investment for long-term asset protection and system reliability.

Product Code: 44120201

Key Benefits

• Combined Type 1+2 protection for comprehensive surge defence
• High nominal discharge current of 20 kA ensures robust performance
• Compact, pluggable design for easy installation and maintenance
• Clear status indication with green/red microswitch for quick diagnostics
• Suitable for TT and TNS system configurations
• High short circuit withstand rating of 25 kA enhances safety

Compatibility

The M K1-2PG275-M SPD is compatible with low-voltage AC electrical systems operating at 230V nominal voltage. It supports TT and TNS system configurations and is suitable for installation on DIN rails. The device integrates seamlessly with existing distribution boards and is designed to work with backup fuses up to 315 A [gG].

Applications

• Industrial and commercial main distribution boards
• Protection of sensitive electronic and electrical equipment
• Lightning and switching surge protection in power installations
• Renewable energy systems requiring surge protection
• Building automation and control panels

Technical Specifications

• Item number: 44120201
• Catalogue No: K1-2PG275-M
• Description: SPD, T1+2, 1+1, Uc 275Vac, M
• EAN/UPC Code: 8435297886631
• RoHS Compliant: Yes
• IEC SPD Type: Class I+II
• UL SPD Type: Type 1 Component Assembly
• Format: Pluggable
• Nominal Operating Volt Rating (Un): 230
• AC or DC: AC
• Nominal Discharge Current (In) (8/20): 20 kA
• Max Discharge Current : Imax (8/20): 50 kA
• Protection Modes: L-N / N-PE
• System Configuration: TT, TNS
• Lightning Impulse Current (10/350) (LIMP): 12.5 kA
• 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: 315 A [gG]
• Housing Material: PA6 CT1 & 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
• Up at In (L-PE): ≤1,8 kV
• MCOV L-G: 275 V
• MCOV N-G: 305 V
• MCOV L-N: 275 V
• VPR L-G: 1500 V
• VPR N-G: 1000 V
• VPR L-N: 1200 V
• Replacement Plug N-PE: 44120000
• Replacement Plug L-N: 44120001
• Product Width: 36 mm
• Product Length: 90.4 mm
• Product Height: 90 mm
• Sell Pack Quantity: 1 EA
• Sell Pack Weight: 0.29 kg
• Sell Pack Width: 38 mm
• Sell Pack Length: 97 mm
• Sell Pack Height: 118 mm
• Product group: Power Line SPDs
• Product Weight: 0.27 kg

Common Search Terms

surge protective device, SPD Type 1+2, combined SPD, 275Vac SPD, DIN rail SPD, industrial surge protection, lightning protection device, power line SPD, pluggable surge protector