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K2-4P320 Mersen Surge Protector Type 2 SPD 4 Pole 277/480 Volt 20KA TNS

MPN: 44020412

Alt. SKU: K2-4P320

Special Price £131.82 £109.85 Regular Price £175.75

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Why Choose the SPD, T2, 4P, Uc 320Vac K2-4P320?

The K2-4P320 surge protection device (SPD) offers reliable Type 2 protection for four-pole, 320Vac systems, safeguarding sensitive equipment from transient overvoltages. Its robust design ensures consistent performance in demanding industrial and commercial electrical installations.

Engineered for straightforward integration, this SPD features a compact form factor and durable construction, minimising downtime and maintenance. The dependable voltage withstand capability at 320Vac makes it ideal for critical power distribution applications where uninterrupted operation is essential.

Technical Specifications

  • Item number: 44020412
  • Catalogue No: K2-4P320
  • Description: SPD, T2, 4P, Uc 320Vac
  • EAN/UPC Code: 8435297889960
  • 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-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
  • MOV Response Time: ≤25
  • Installation Mounting: DIN rail
  • MCOV L-G: 320 V
  • MCOV L-L: 640 V
  • MCOV N-G: 320 V
  • MCOV L-N: 640 V
  • VPR L-G: 1200 V
  • VPR L-L: 2000 V
  • VPR N-G: 1200 V
  • VPR L-N: 2000 V
  • Replacement Plug L1: 44020003
  • Product Width: 72 mm
  • Product Length: 74.4 mm
  • Product Height: 90 mm
  • Sell Pack Quantity: 1 EA
  • Sell Pack Weight: 0.493 kg
  • Sell Pack Width: 78 mm
  • Sell Pack Length: 97 mm
  • Sell Pack Height: 118 mm
  • Product group: Power Line SPDs
  • Product Weight: 0.448 kg

Product Code: 44020412

Key Benefits

  • Reliable Type 2 surge protection for four-pole systems
  • Compact and pluggable design for easy installation and maintenance
  • Robust housing materials (PA6 CT1 & PA66 CT1) ensure durability
  • Visual indication system for quick status monitoring
  • High nominal discharge current (20 kA) and max discharge current (50 kA) for effective surge handling
  • Compatible with TNS system configurations
  • DIN rail mounting for straightforward integration into existing panels

Compatibility

This SPD is compatible with AC electrical systems rated at 277/480V nominal operating voltage, specifically designed for TNS system configurations. It supports four-pole installations and is suitable for use with backup fuses up to 315 A [gG]. The device integrates seamlessly with DIN rail mounting systems commonly used in industrial and commercial electrical panels.

Applications

  • Industrial power distribution boards
  • Commercial electrical installations requiring surge protection
  • Protection of sensitive electronic equipment in manufacturing plants
  • Power supply systems with TNS configuration
  • Critical infrastructure requiring reliable transient overvoltage protection

Frequently Asked Questions

What type of surge protection does this device provide?

The K2-4P320 provides Type 2 surge protection, suitable for installation at the distribution board level to protect against transient overvoltages.

Can this SPD be used in DC systems?

No, this device is designed specifically for AC systems with nominal operating voltages of 277/480V.

How is the device mounted?

The SPD is designed for DIN rail mounting, allowing easy integration into standard electrical panels.

Does the device have an indication system?

Yes, it features a green (OK) / not green (replace) visual indication system to monitor its operational status.

What is the maximum backup fuse rating for this SPD?

The maximum backup fuse rating is 315 A [gG].

Common Search Terms

SPD 4P 320Vac, Type 2 surge protector, DIN rail surge protection device, 20kA surge arrester, industrial surge protector, K2-4P320, power line SPD, transient overvoltage protection, TNS system SPD

More Information
Manufacturer Part Number 44020412
Packed Quantity 1
Barcode 8435297889960
Height 74.4mm
Width 72mm
Depth 90mm
HS Code 85363090
Country of Manufacture Spain
Manufacturer Mersen
Number of Poles 4 Pole
Voltage 277/480V
Maximum Continuous Voltage 320V
Nominal Discharge Current 20Ka
Alternative Product SKU K2-4P320
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