MERSEN FUSE Handle red 145mm IP65 NEMA 3R HR145

MERSEN FUSE Handle red 145mm IP65 NEMA 3R HR145

Mersen HR145 red 145 mm external operating handle, reference M1043383, with IP65 and NEMA 3R ratings for compatible Mersen low-voltage disconnect switches.

SKU: HR145MPN: HR145
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Why Choose the Mersen HR145 External Disconnect Switch Handle?

The Mersen HR145 is a robust external operating handle designed for compatible Mersen low-voltage disconnect switches. Its highly visible red finish, ergonomic design and 145 mm length provide a practical interface for operating enclosure-mounted switches in industrial machinery, control panels and electrical distribution equipment.

Designed for front operation from outside an electrical enclosure, the HR145 allows the connected disconnect switch to be operated without opening the panel door. When installed with the appropriate compatible switch, operating shaft and mounting components, it supports clear and dependable control of electrical isolation.

The handle provides an IP65 and NEMA 3R rated installation when correctly fitted to a suitable enclosure. Its durable PA66/6 polyamide construction makes it suitable for demanding industrial environments, while locking capability can help prevent unauthorised or accidental switch operation.

Key Advantages

  • External front operation allows switching without opening the enclosure.
  • Highly visible red handle supports clear equipment identification.
  • 145 mm operating length provides a secure manual grip.
  • IP65 and NEMA 3R ratings support demanding panel installations.
  • Suitable for compatible Mersen fusible and non-fusible disconnect switch arrangements.
  • Genuine Mersen accessory for dependable mechanical compatibility.

Key Features

  • Mersen low-voltage disconnect switch accessory.
  • External enclosure-mounted operating handle.
  • Red 145 mm handle.
  • Designed for front operation of compatible disconnect switches.
  • IP65 environmental protection rating.
  • NEMA 3R enclosure rating.
  • Durable PA66/6 polyamide construction.
  • Supports padlocking where required by the compatible installation.
  • Mersen product reference M1043383.

Reliable External Operation of Disconnect Switches

Disconnect switches provide a controlled means of isolating machinery and electrical equipment from an incoming power supply. An external operating handle allows the connected switch to be moved between its operating positions while the electrical enclosure remains closed.

The Mersen HR145 is designed to connect to a compatible disconnect switch through the appropriate operating shaft and mounting arrangement. Its visible red finish, robust construction and environmental protection make it suitable for industrial panels where dependable external switching is required.

Typical Applications

  • Industrial machinery isolation.
  • Electrical control panels.
  • Motor control centres.
  • Low-voltage switchboards.
  • Automation and process-control cabinets.
  • Manufacturing and processing equipment.
  • OEM machinery and switchgear assemblies.

Technical Specifications

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IP Rating IP65
Device Type Accessory
Manufacturer Mersen
Model HR145
Manufacturer reference M1043383
Product type Disconnect switch operating handle
Accessory type External handle
Operating position External front operation
Handle colour Red
Handle length 145 mm
Body material PA66/6 polyamide
Protection rating IP65
NEMA rating NEMA 3R
Operating method Manual
Application Low-voltage disconnect switch operation
Mounting arrangement Enclosure door mounting with a compatible shaft
Accessory supplied External operating handle
Disconnect switch included No
GTIN-13 3605340558654

Frequently Asked Questions

What is the Mersen HR145 used for?

The Mersen HR145 is an external red handle used to operate a compatible Mersen low-voltage disconnect switch from the front of an electrical enclosure.

Is the HR145 a complete disconnect switch?

No. The HR145 is an external operating handle accessory. The compatible disconnect switch, operating shaft and any other required mounting components must be selected separately.

What protection ratings does the Mersen HR145 have?

The HR145 is specified with IP65 and NEMA 3R ratings when correctly installed as part of a suitable enclosure and switch assembly.

How long is the Mersen HR145 handle?

The HR145 has a nominal handle length of 145 mm, providing a practical grip for manual switch operation.

Which disconnect switches are compatible with the HR145?

The HR145 is intended for selected Mersen low-voltage disconnect switches. Compatibility depends on the switch model, operating shaft and enclosure arrangement, so these components should be checked before installation.

Trusted by Electrical Panel Builders

Mersen disconnect switch handles are used by electrical engineers, machinery manufacturers and panel builders to provide dependable external switching and isolation in industrial electrical systems.