K2-3P320-M Mersen Surge Protector Type 2 SPD 3 Pole 480 Volt 20KA TNC Remote Indication

Why Choose the IR K2-3P320-M SPD?

The IR K2-3P320-M is a robust Type 2 Surge Protection Device engineered for three-phase systems, supporting a continuous operating voltage up to 320Vac. This SPD delivers effective protection against transient overvoltages, ensuring reliable safeguarding of equipment and critical infrastructure.

Designed for ease of installation in industrial environments, it offers high discharge capacity and proven durability. The IR K2-3P320-M is ideal for those seeking dependable surge protection with minimal maintenance in demanding applications.

Technical Specifications

• Item number: 44020305
• Catalogue No: K2-3P320-M
• Description: SPD, T2, 3P, Uc 320Vac, IR
• EAN/UPC Code: 8435297889908
• 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-PE(N)
• System Configuration: TNC
• Short Circuit Withstand (ISCCR): 25 kA
• Indication System: Yes
• Indication System Type: Green (OK) / Not green (replace) Microswitch
• Number of Poles: 3-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: 320 V
• MCOV L-L: 640 V
• VPR L-G: 1200 V
• VPR L-L: 2000 V
• Replacement Plug L1: 44020003
• Product Width: 54 mm
• Product Length: 74.4 mm
• Product Height: 90 mm
• Sell Pack Quantity: 1 EA
• Sell Pack Weight: 0.402 kg
• Sell Pack Width: 59 mm
• Sell Pack Length: 97 mm
• Sell Pack Height: 118 mm
• Product group: Power Line SPDs
• Product Weight: 0.378 kg

Product Code: 44020305

Key Benefits

• High discharge capacity with a nominal discharge current of 20 kA and maximum discharge current of 50 kA for superior surge protection.
• Compact pluggable format with DIN rail mounting for easy installation and maintenance.
• Robust indication system featuring a green (OK) / not green (replace) microswitch for clear status monitoring.
• Suitable for three-phase systems with a nominal operating voltage of 277/480 V AC.
• Durable housing made from PA6 CT1 & PA66 CT1 materials ensuring long service life in industrial environments.
• Compliant with IEC Class II and UL Type 1 standards for reliable and certified protection.

Compatibility

The IR K2-3P320-M SPD is compatible with three-phase TNC system configurations and can be integrated seamlessly into power distribution panels with DIN rail mounting. It supports systems with a nominal operating voltage of 277/480 V AC and is designed to work alongside backup fuses up to 315 A [gG]. Replacement plugs such as the 44020003 ensure easy maintenance and component renewal.

Applications

• Industrial power distribution systems requiring surge protection.
• Commercial buildings with three-phase electrical installations.
• Critical infrastructure and equipment protection against transient overvoltages.
• Manufacturing plants and factories with high electrical load demands.
• Renewable energy systems and power generation facilities.

Common Search Terms

Surge protection device, Type 2 SPD, three-phase SPD, 320Vac SPD, industrial surge protector, DIN rail SPD, power line surge protector, 3-pole surge protection, transient voltage suppression, Class II SPD.