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

MPN: 44020304

Alt. SKU: K2-3P320

Special Price £100.94 £84.12 Regular Price £134.59

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Why Choose the SPD, T2, 3P, Uc 320Vac K2-3P320?

The SPD, T2, 3P, Uc 320Vac K2-3P320 provides robust Type 2 surge protection for three-phase electrical systems, ensuring equipment reliability against transient overvoltages. Its nominal voltage rating of 320Vac makes it ideal for industrial and commercial power distribution networks.

Engineered for rapid installation and long-term durability, this surge protective device delivers consistent performance and safety compliance. Choose K2-3P320 to minimise downtime, protect valuable assets, and maintain essential operational continuity.

Product Code: 44020304

Key Benefits

  • Provides reliable Type 2 surge protection for three-phase systems.
  • High nominal operating voltage rating of 277/480 Vac suitable for industrial applications.
  • Pluggable format allows for easy installation and maintenance.
  • Integrated indication system for quick status checks (Green = OK, Not green = replace).
  • Robust construction with PA6 CT1 & PA66 CT1 housing materials for durability.
  • Complies with IEC and UL standards ensuring safety and performance.

Compatibility

This SPD is compatible with TN-C system configurations and designed for use with three-pole electrical distribution systems operating at nominal voltages of 277/480 Vac. It supports connection to systems with a maximum back-up fuse rating of 315 A [gG]. Replacement plugs such as 44020003 are available for maintenance and upgrades.

Applications

  • Industrial power distribution networks requiring surge protection.
  • Commercial electrical installations with three-phase supply.
  • Protection of sensitive equipment in manufacturing plants.
  • Power line surge protection in critical infrastructure.
  • Electrical panels and switchgear installations on DIN rails.

Technical Specifications

  • Item number: 44020304
  • Catalogue No: K2-3P320
  • Description: SPD, T2, 3P, Uc 320Vac
  • EAN/UPC Code: 8435297889892
  • 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)
  • 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

Frequently Asked Questions

What type of surge protection does this device provide?

This device provides Type 2 surge protection, suitable for three-phase electrical systems to guard against transient overvoltages.

Can this SPD be installed on a DIN rail?

Yes, the SPD, T2, 3P, Uc 320Vac K2-3P320 is designed for easy installation on standard DIN rails.

What indication system does the SPD use?

It features a green indicator light signalling normal operation; if the indicator is not green, the device should be replaced.

Is this product RoHS compliant?

Yes, the device complies with RoHS standards, ensuring it meets environmental and safety regulations.

Common Search Terms

Type 2 surge protector, three-phase SPD, 320Vac surge protection, pluggable surge protective device, industrial surge protector, DIN rail SPD, K2-3P320, power line surge protection device.

More Information
Manufacturer Part Number 44020304
Packed Quantity 1
Barcode 8435297889892
Height 74.4mm
Width 54mm
Depth 90mm
HS Code 85363090
Country of Manufacture Spain
Manufacturer Mersen
Number of Poles 3 Pole
Voltage 480V
Maximum Continuous Voltage 320V
Nominal Discharge Current 20Ka
Alternative Product SKU K2-3P320
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