K2-4PG320-M Mersen Surge Protector Type 2 SPD 4 Pole 277/480 Volt 20KA TT Remote Indication

Why Choose the IR K2-4PG320-M SPD?

The IR K2-4PG320-M is a robust Type 2 surge protection device (SPD) designed for reliable safeguarding of electrical installations against transient overvoltages. Rated for 4 poles and a continuous operating voltage (Uc) of 320Vac, it ensures optimal protection in industrial and commercial environments.

Engineered for ease of installation and consistent performance, this SPD delivers high discharge capacity and durability, reducing system downtime and enhancing overall equipment lifespan. Ideal for critical power systems requiring dependable surge mitigation.

Technical Specifications

• Item number: 44020409
• Catalogue No: K2-4PG320-M
• Description: SPD, T2, 4PG, Uc 320Vac, IR
• EAN/UPC Code: 8435297887676
• RoHS Compliant: Yes
• IEC SPD Type: Class II
• UL SPD Type: Type 1 Component Assembly
• Format: Pluggable
• Nominal Operating Volt Rating (Un): 277/480
• 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
• 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: 4-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 L-L: 640 V
• MCOV N-G: 305 V
• MCOV L-N: 320 V
• VPR L-G: 1500 V
• VPR L-L: 2000 V
• VPR N-G: 900 V
• VPR L-N: 1200 V
• Replacement Plug N-PE: 44020000
• Replacement Plug L-N: 44020003
• Product Width: 72 mm
• Product Length: 74.4 mm
• Product Height: 90 mm
• Sell Pack Quantity: 1 EA
• Sell Pack Weight: 0.487 kg
• Sell Pack Width: 78 mm
• Sell Pack Length: 97 mm
• Sell Pack Height: 118 mm
• Product group: Power Line SPDs
• Product Weight: 0.442 kg

Product Code: 44020409

Key Benefits

• High discharge capacity of up to 50 kA (Imax) for effective surge mitigation.
• Pluggable format enables quick and easy installation and maintenance.
• Visual and microswitch indication system ensures clear status monitoring.
• Suitable for TT and TNS system configurations, providing versatile application.
• Compact design with DIN rail mounting saves space in electrical panels.
• Robust housing materials (PA6 CT1 & PA66 CT1) ensure durability and safety.

Compatibility

The IR K2-4PG320-M SPD is compatible with industrial and commercial AC power systems rated at 277/480 V nominal operating voltage. It supports TT and TNS system configurations and can be integrated with backup fuses up to 315 A [gG]. Replacement plugs for N-PE and L-N connections are available for seamless maintenance.

Applications

• Protection of industrial power distribution boards against transient overvoltages.
• Surge protection in commercial buildings and facilities.
• Safeguarding critical power systems and sensitive electronic equipment.
• Use in renewable energy installations requiring reliable surge mitigation.
• Integration in control panels and automation systems.

Common Search Terms

Type 2 SPD, surge protection device, 4-pole surge protector, 320Vac surge protector, industrial SPD, DIN rail SPD, transient overvoltage protection, power line SPD, IR K2-4PG320-M, pluggable surge protector.