K2-3P440 Mersen Surge Protector Type 2 SPD 3 Pole 400/690 Volt 20KA IT

Why Choose the K2-3P440 SPD, T2, 3P, Uc 440Vac?

The K2-3P440 is a robust Type 2 surge protection device engineered for reliable three-phase systems, providing superior defence against transient overvoltages up to 440Vac. Its high-performance MOV technology ensures stable operation and enhances equipment longevity in industrial and commercial electrical installations.

Compact and DIN-rail mountable, the unit supports straightforward integration into new or existing panels. The K2-3P440 is the optimal choice to safeguard mission-critical assets, minimise downtime and ensure compliance with current surge protection standards.

Product Code: 44020308

Key Benefits

• High surge current capacity with 20 kA nominal discharge current and 50 kA maximum discharge current.
• Reliable three-pole protection suitable for three-phase systems.
• Compact design with DIN rail mounting for easy installation and integration.
• Visual indication system for quick status checks (Green = OK, Not green = replace).
• Compliant with IEC and UL standards ensuring safety and performance.
• Robust housing materials (PA6 CT1 & PA66 CT1) for durability in industrial environments.
• Supports system configurations with TNC grounding.

Compatibility

The K2-3P440 SPD is compatible with three-phase electrical systems operating at nominal voltages of 400/690 V AC. It is designed for TNC system configurations and can be integrated into panels with DIN rail mounting. The device supports use with backup fuses up to 315 A [gG], making it suitable for a wide range of industrial and commercial installations.

Applications

• Industrial three-phase power distribution systems.
• Commercial electrical panels requiring surge protection.
• Protection of sensitive equipment from transient overvoltages.
• Renewable energy installations with three-phase inverters.
• Data centres and mission-critical infrastructure.
• Manufacturing plants and processing facilities.

Technical Specifications

• Item number: 44020308
• Catalogue No: K2-3P440
• Description: SPD, T2, 3P, Uc 440Vac
• EAN/UPC Code: 8435297889915
• RoHS Compliant: Yes
• IEC SPD Type: Class II
• UL SPD Type: Type 1 Component Assembly
• Format: Pluggable
• Nominal Operating Volt Rating (Un): 400/690
• 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)
• System Configuration: TNC
• Short Circuit Withstand (ISCCR): 25 kA
• Indication System: Yes
• Indication System Type: Green (OK) / Not green (replace)
• Number of Poles: 3-Pole
• Torque Rating: 3 Nm
• Max. Back-Up Fuse: 315 A [gG]
• Housing Material: PA6 CT1 & PA66 CT1
• Installation Mounting: DIN rail
• MCOV L-G: 440 V
• MCOV L-L: 880 V
• VPR L-G: 1500 V
• VPR L-L: 2500 V
• Replacement Plug L1: 44020005
• Product Width: 54 mm
• Product Length: 74.4 mm
• Product Height: 90 mm
• Sell Pack Quantity: 1 EA
• Sell Pack Weight: 0.406 kg
• Sell Pack Width: 59 mm
• Sell Pack Length: 97 mm
• Sell Pack Height: 118 mm
• Product group: Power Line SPDs
• Product Weight: 0.37 kg

Common Search Terms

Type 2 SPD, three-phase surge protector, DIN rail surge protection device, 440Vac surge protector, industrial surge protection, power line SPD, transient voltage suppressor, K2-3P440, Class II surge protection, pluggable SPD.