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MERSEN FUSE IEC UL508 Switch 80A 3p M803

MPN: M803

Special Price £66.23 £55.19 Regular Price £101.88

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Why Choose the UL508 Switch 600VAC Non-Fused 80A 3-Pole Direct Screw Mount?

This industrial-grade switch is engineered for reliable control and isolation in demanding environments, offering a robust 600VAC rating and supporting up to 80A across three poles. Direct screw mounting ensures fast, secure installation, minimising downtime during panel assembly or maintenance.

Fully compliant with UL508 standards, this non-fused switch delivers trusted electrical safety and consistent performance, making it ideal for use in heavy-duty machinery, motor control circuits, and panel construction applications.

Technical Specifications

  • Item number: M803
  • Description: UL508 Switch 600VAC Non-Fused 80A 3-Pole Direct Screw Mount
  • EAN/UPC Code: 3605340557459
  • Rated voltage AC UL: 600 V
  • Ampere Rating: 80 A
  • RoHS Compliant: Yes
  • AC or DC: AC
  • Short Circuit Current Rating (SCCR): Up to 100 kA with fuses
  • Short Circuit Rating (Class J): 100 kA w/100A kA
  • Short Circuit Rating (Class RK5): 10 kA w/100A kA
  • Number of Poles: 3-Pole
  • Wiring range: #14-4
  • Connection/Terminal Type: Box
  • Torque Rating: 2.034 Nm
  • Max Horsepower Rating/FLA: 3-Phase: 240V 20HP, 480V 40HP, 600V 40HP; 1-Phase 120V 2HP, 240V 10HP
  • Rated Insulation Voltage: 750 V
  • Installation Mounting: Direct Screw Mount
  • Product Width: 52.6 mm
  • Product Length: 71.9 mm
  • Product Height: 61.5 mm
  • Sell Pack Quantity: 1 EA
  • Sell Pack Weight: 0.2858 kg
  • Sell Pack Width: 84.8 mm
  • Sell Pack Length: 64 mm
  • Sell Pack Height: 103.1 mm
  • Product group: UL/CSA Switches
  • Product Weight: 0.2722 kg

Product Code: M803

Key Benefits

  • High 600VAC rating ensures suitability for heavy industrial applications.
  • Supports 80A current with 3-pole design for comprehensive circuit control.
  • Direct screw mounting enables quick and secure installation.
  • UL508 compliance guarantees safety and reliability in electrical systems.
  • Non-fused design allows for flexible integration with various protection devices.
  • Compact dimensions facilitate space-saving panel layouts.

Compatibility

This switch is compatible with standard UL508 panels and can be integrated with Class J and RK5 fuses to achieve short circuit current ratings up to 100 kA. It supports wiring ranges from #14 to #4, making it suitable for a wide range of industrial wiring configurations.

Applications

  • Heavy-duty machinery control panels
  • Motor control circuits and starters
  • Industrial panel construction and assembly
  • Electrical isolation in manufacturing plants
  • Power distribution systems requiring UL508 compliance

Frequently Asked Questions

What does non-fused mean for this switch?

Non-fused means the switch does not include internal fuses for overcurrent protection. External fuses or circuit breakers must be used to protect the circuit.

Can this switch be used in DC applications?

No, this switch is rated for AC applications only, as specified in the technical specifications.

What is the significance of the short circuit current rating?

The short circuit current rating (SCCR) indicates the maximum fault current the switch can safely interrupt without damage. This switch supports up to 100 kA with appropriate fusing.

Is this switch RoHS compliant?

Yes, the switch is RoHS compliant, ensuring it meets environmental and safety standards for hazardous substances.

Common Search Terms

UL508 switch, 600VAC switch, 80A industrial switch, 3-pole switch, non-fused switch, direct screw mount switch, motor control switch, panel mount switch, electrical isolation switch, heavy-duty switch

More Information
Manufacturer Part Number M803
Packed Quantity 1
Barcode 3605340557459
Height 71.9mm
Width 52.6mm
Depth 61.5mm
HS Code 85363090
Country of Manufacture Finland
Manufacturer Mersen
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