K2-4P440 Mersen Surge Protector Type 2 SPD 4 Pole 230/400 Volt 20KA IT

Why Choose the K2-4P440 Surge Protection Device?

The K2-4P440 SPD offers reliable Type 2 surge protection for three-phase systems, handling continuous operating voltage up to 440 V AC. Its four-pole configuration ensures comprehensive protection against transient overvoltages, safeguarding sensitive equipment in industrial and commercial environments.

Engineered for ease of installation and long-term durability, the K2-4P440 minimises downtime and ensures compliance with IEC 61643-11 standards. Choose this device to enhance system resilience and maintain operational integrity.

Technical Specifications

• Item number: 44020420
• Catalogue No: K2-4P440
• Description: SPD, T2, 4P, Uc 440Vac
• EAN/UPC Code: 8435297890003
• 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-PE
• System Configuration: TNS
• Short Circuit Withstand (ISCCR): 25 kA
• Indication System: Yes
• Indication System Type: Green (OK) / Not green (replace)
• 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
• MCOV L-G: 440 V
• MCOV L-L: 880 V
• MCOV N-G: 440 V
• MCOV L-N: 880 V
• VPR L-G: 1500 V
• VPR L-L: 2500 V
• VPR N-G: 1500 V
• VPR L-N: 2500 V
• Replacement Plug L1: 44020005
• Product Width: 72 mm
• Product Length: 74.4 mm
• Product Height: 90 mm
• Sell Pack Quantity: 1 EA
• Sell Pack Weight: 0.463 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: 44020420

Key Benefits

• Reliable Type 2 surge protection for three-phase systems.
• Four-pole design ensures comprehensive protection across all lines.
• High nominal discharge current of 20 kA with max discharge up to 50 kA.
• Clear visual indication system for easy status monitoring.
• Compact pluggable format for quick and easy installation on DIN rail.
• Compliant with IEC 61643-11 standards for safety and performance.
• Durable housing materials (PA6 CT1 & PA66 CT1) ensure long service life.

Compatibility

The K2-4P440 SPD is compatible with TN-S electrical systems operating at nominal voltages of 400/690 V AC. It fits standard DIN rail mounting systems and is suitable for use with backup fuses up to 315 A [gG]. Replacement plugs such as the 44020005 ensure easy maintenance and component replacement.

Applications

• Industrial power distribution panels.
• Commercial building electrical systems.
• Protection of sensitive electronic and electrical equipment.
• Renewable energy installations requiring surge protection.
• Data centres and critical infrastructure facilities.

Common Search Terms

Type 2 surge protector, 4-pole SPD, 440V surge protection device, three-phase surge protection, DIN rail SPD, industrial surge protector, K2-4P440, power line SPD, IEC 61643-11 compliant surge device.