K2-1P440-M Mersen Surge Protector Type 2 SPD 1 Pole 400 Volt 20KA L-N Remote Indication

Why Choose the IR K2-1P440-M SPD?

The IR K2-1P440-M is a Type 2, single-phase surge protection device designed for reliable safeguarding of electrical installations with a maximum continuous operating voltage (Uc) of 440V AC. Its robust construction ensures high performance and durability in demanding industrial and commercial environments.

This SPD provides efficient transient overvoltage protection, minimising the risk of equipment failure and downtime. Its compact form factor and straightforward DIN rail mounting facilitate easy integration into new or existing systems.

Technical Specifications

• Item number: 44020111
• Catalogue No: K2-1P440-M
• Description: SPD, T2, 1P, Uc 440Vac, IR
• EAN/UPC Code: 8435297889755
• RoHS Compliant: Yes
• IEC SPD Type: Class II
• UL SPD Type: Type 1 Component Assembly
• Format: Pluggable
• Nominal Operating Volt Rating (Un): 400
• AC or DC: AC
• Nominal Discharge Current (In) (8/20): 20 kA
• Max Discharge Current : Imax (8/20): 50 kA
• System Configuration: TNS, TNC, TT (only L-N)
• Short Circuit Withstand (ISCCR): 25 kA
• Indication System: Yes
• Indication System Type: Green (OK) / Not green (replace) Microswitch
• Number of Poles: 1-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-N: 440 V
• VPR L-G: 1500 V
• VPR L-N: 1500 V
• Replacement Plug L1: 44020005
• Product Width: 18 mm
• Product Length: 74.4 mm
• Product Height: 90 mm
• Sell Pack Quantity: 1 EA
• Sell Pack Weight: 0.129 kg
• Sell Pack Width: 22 mm
• Sell Pack Length: 97 mm
• Sell Pack Height: 118 mm
• Product group: Power Line SPDs
• Product Weight: 0.112 kg

Product Code: 44020111

Key Benefits

• Provides reliable transient overvoltage protection to safeguard sensitive equipment.
• Compact and pluggable design allows for easy installation and maintenance.
• Visual indication system with green (OK) and non-green (replace) microswitch for quick status checks.
• Suitable for multiple system configurations including TNS, TNC, and TT (L-N only).
• High nominal and maximum discharge current ratings ensure robust surge handling capability.
• Durable housing materials (PA6 CT1 & PA66 CT1) for long-term performance in industrial environments.

Compatibility

The IR K2-1P440-M SPD is compatible with single-phase AC electrical systems operating at nominal voltages up to 400V. It supports TNS, TNC, and TT system configurations (L-N only) and can be integrated into installations requiring DIN rail mounting. The device is designed to work with backup fuses up to 315 A [gG]. Replacement plugs are available under catalogue number 44020005.

Applications

• Industrial electrical panels requiring surge protection.
• Commercial buildings with sensitive electronic equipment.
• Renewable energy installations such as solar power systems.
• Data centres and telecommunications infrastructure.
• Manufacturing facilities to protect control and automation systems.

Common Search Terms

surge protection device, SPD, Type 2 SPD, single-phase SPD, 440V surge protector, DIN rail SPD, transient overvoltage protection, industrial surge protection, IR K2-1P440-M