K1-2PG320-M Mersen Surge Protector Type 1+2 SPD 2 Pole 277 Volt 20KA TT Remote Indication

Why Choose the M K1-2PG320-M SPD?

The M K1-2PG320-M Surge Protective Device (SPD) provides robust Type 1+2 protection for low-voltage installations, ensuring reliable defence against direct lightning strikes and transient overvoltages. Designed with a 1+1 configuration and a maximum continuous operating voltage (Uc) of 320 V AC, it is ideal for safeguarding critical industrial and commercial electrical systems.

This SPD features high discharge capacity and rapid response times, minimising downtime and maintaining equipment integrity. Its compact design facilitates straightforward DIN rail mounting, making it a versatile and essential addition to modern surge protection strategies.

Technical Specifications

• Item number: 44120209
• Catalogue No: K1-2PG320-M
• Description: SPD, T1+2, 1+1, Uc 320Vac, M
• EAN/UPC Code: 8435297888093
• RoHS Compliant: Yes
• IEC SPD Type: Class I+II
• UL SPD Type: Type 1 Component Assembly
• Format: Pluggable
• Nominal Operating Volt Rating (Un): 277
• 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): 320 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: 320 V
• MCOV N-G: 305 V
• MCOV L-N: 320 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: 44120003
• 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

Product Code: 44120209

Key Benefits

• Provides comprehensive Type 1+2 surge protection for enhanced safety.
• High discharge capacity of up to 50 kA ensures robust defence against surges.
• Compact and pluggable design allows easy DIN rail installation and maintenance.
• Visual indication system with green/red microswitch for quick status checks.
• Suitable for TT and TNS system configurations, offering versatile application.

Compatibility

The M K1-2PG320-M SPD is compatible with low-voltage AC electrical systems operating at nominal voltages up to 277 V. It is designed for use in TT and TNS earthing systems and fits standard DIN rail mounting setups. Replacement plugs for N-PE and L-N connections are available under catalogue numbers 44120000 and 44120003 respectively.

Applications

• Industrial and commercial electrical installations requiring surge protection.
• Protection of sensitive equipment from lightning-induced surges and transient overvoltages.
• Use in power distribution boards and control panels with DIN rail mounting.
• Suitable for buildings with TT and TNS earthing systems.

Common Search Terms

surge protective device, SPD, Type 1+2 surge protector, DIN rail SPD, lightning protection device, industrial surge protection, low voltage SPD, M K1-2PG320-M, power line SPD