K2-4P275-M Mersen Surge Protector Type 2 SPD 4 Pole 230/400 Volt 20KA TNS Remote Indication

Why Choose the IR K2-4P275-M SPD?

The IR K2-4P275-M is a Type 2, four-pole surge protective device designed for three-phase systems up to 275Vac, providing robust protection against transient overvoltages and ensuring operational continuity of critical electrical infrastructure.

Engineered for reliable performance, this SPD features fast response time and easy installation, making it ideal for industrial and commercial applications where safeguarding equipment integrity and minimising downtime are paramount.

Technical Specifications

• Item number: 44020405
• Catalogue No: K2-4P275-M
• Description: SPD, T2, 4P, Uc 275Vac, IR
• EAN/UPC Code: 8435297889946
• RoHS Compliant: Yes
• IEC SPD Type: Class II
• UL SPD Type: Type 1 Component Assembly
• Format: Pluggable
• Nominal Operating Volt Rating (Un): 230/400
• AC or DC: AC
• Nominal Discharge Current (In) (8/20): 20 kA
• Max Discharge Current : Imax (8/20): 50 kA
• Protection Modes: L-PE / N-PE
• System Configuration: TNS
• 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
• MOV Response Time: ≤25
• Installation Mounting: DIN rail
• MCOV L-G: 275 V
• MCOV L-L: 550 V
• MCOV N-G: 275 V
• MCOV L-N: 550 V
• VPR L-G: 1000 V
• VPR L-L: 1800 V
• VPR N-G: 1000 V
• VPR L-N: 1800 V
• Replacement Plug L1: 44020001
• Product Width: 72 mm
• Product Length: 74.4 mm
• Product Height: 90 mm
• Sell Pack Quantity: 1 EA
• Sell Pack Weight: 0.48 kg
• Sell Pack Width: 78 mm
• Sell Pack Length: 97 mm
• Sell Pack Height: 118 mm
• Product group: Power Line SPDs
• Product Weight: 0.435 kg

Product Code: 44020405

Key Benefits

• Provides reliable surge protection for three-phase systems up to 275Vac.
• Fast MOV response time (≤25 ns) minimises risk of equipment damage.
• Pluggable format allows for easy installation and maintenance.
• Visual and microswitch indication system for quick status monitoring.
• High nominal discharge current capacity (20 kA) ensures robust protection.
• Suitable for TNS system configurations with multiple protection modes (L-PE / N-PE).

Compatibility

The IR K2-4P275-M SPD is compatible with three-phase electrical systems operating at 230/400 V AC and is designed for use in TNS system configurations. It fits standard DIN rail mounting and can be integrated with backup fuses up to 315 A [gG]. Replacement plugs such as the 44020001 are available for maintenance and upgrades.

Applications

• Industrial power distribution panels
• Commercial building electrical protection
• Critical infrastructure surge protection
• Renewable energy systems requiring surge mitigation
• Data centres and IT equipment protection
• Manufacturing and process control facilities

Common Search Terms

surge protector, SPD, Type 2 SPD, four-pole surge protector, three-phase surge protection, DIN rail SPD, industrial surge protector, IR K2-4P275-M, transient voltage protection, power line SPD