K2-2P320 Mersen Surge Protector Type 2 SPD 2 Pole 277 Volt 20KA TNS

Why Choose the K2-2P320 Surge Protection Device?

The K2-2P320 is a Type 2, two-pole surge protection device designed to safeguard electrical installations against transient overvoltages. Engineered for systems with a maximum continuous operating voltage (Uc) of 320 V AC, it ensures reliable suppression of surges caused by lightning strikes or switching events.

With robust construction and high discharge capacity, the K2-2P320 offers dependable protection for industrial and commercial environments. Its quick installation design and compliance with international safety standards make it an essential choice for critical power distribution panels and sensitive electronic equipment.

Product Code: 44020210

Key Benefits

• Effective surge protection for electrical installations up to 320 V AC
• High nominal discharge current of 20 kA and maximum discharge current of 50 kA for robust defence against surges
• Pluggable format allows for quick and easy installation and replacement
• Clear indication system with green (OK) / not green (replace) status for maintenance ease
• Compliance with IEC Class II and UL Type 1 standards ensures safety and reliability
• Compact dimensions (36 mm width) suitable for DIN rail mounting in power distribution panels

Compatibility

The K2-2P320 is compatible with TNS system configurations and designed for use in AC electrical networks with a nominal operating voltage of 277 V. It supports protection modes L-PE and N-PE and can be integrated into systems requiring a maximum backup fuse of up to 315 A [gG]. Replacement plugs such as the 44020003 are available for maintenance.

Applications

• Industrial and commercial power distribution panels
• Protection of sensitive electronic equipment from transient voltage surges
• Lightning and switching surge suppression in building electrical installations
• Use in systems requiring compliance with IEC and UL surge protection standards
• DIN rail mounting in control cabinets and switchboards

Technical Specifications

• Item number: 44020210
• Catalogue No: K2-2P320
• Description: SPD, T2, 2P, Uc 320Vac
• EAN/UPC Code: 8435297889809
• RoHS Compliant: Yes
• IEC SPD Type: Class II
• UL SPD Type: Type 1 Component Assembly
• Format: Pluggable
• Nominal Operating Volt Rating (Un): 277
• 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: 2-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 N-G: 320 V
• MCOV L-N: 640 V
• VPR L-G: 1200 V
• VPR N-G: 1200 V
• VPR L-N: 2000 V
• Replacement Plug L1: 44020003
• Product Width: 36 mm
• Product Length: 74.4 mm
• Product Height: 90 mm
• Sell Pack Quantity: 1 EA
• Sell Pack Weight: 0.256 kg
• Sell Pack Width: 38 mm
• Sell Pack Length: 97 mm
• Sell Pack Height: 118 mm
• Product group: Power Line SPDs
• Product Weight: 0.232 kg

Common Search Terms

Surge protection device, SPD 320V, Type 2 SPD, two-pole surge protector, DIN rail SPD, transient voltage suppressor, power line surge protector, industrial surge protection, K2-2P320, Class II SPD, lightning surge protector.