Why Choose the Mersen HB145S Right-Side Operating Handle?
The Mersen HB145S is a genuine external right-side operating handle designed for compatible Mersen low-voltage disconnect switches. Featuring a durable black finish and a 145 mm pistol-style handle, it enables safe and convenient operation of a disconnect switch mounted inside an industrial electrical enclosure.
Unlike standard front-operated handles, the HB145S is intended for applications requiring the switch to be operated from the right-hand side of a cabinet or enclosure. This configuration provides panel builders and machinery manufacturers with greater installation flexibility where enclosure layout, access or equipment positioning prevents conventional front operation.
Manufactured as part of Mersen's disconnect switch accessory range, the HB145S provides reliable mechanical operation and robust performance in industrial control panels, switchboards and machinery. Its manufacturer-matched design helps ensure correct integration with compatible Mersen switch mechanisms and operating shafts.
Key Advantages
Genuine Mersen right-side operating handle.
145 mm black pistol-style handle.
Enables external operation from the right-hand side of an enclosure.
Provides safe isolation without opening the cabinet.
Durable construction for demanding industrial environments.
Designed for compatible Mersen low-voltage disconnect switches.
Key Features
Mersen disconnect switch accessory range.
External right-side operation.
145 mm operating handle.
Black pistol-style design for secure manual operation.
Suitable for compatible shaft-operated disconnect switches.
Supports flexible switch installation within electrical enclosures.
Robust design for industrial panel-building applications.
Suitable for isolation, maintenance and machine safety systems.
Safe Right-Side Disconnect Switch Operation
External operating handles allow disconnect switches to be operated without opening the associated electrical enclosure. The Mersen HB145S is designed specifically for right-side operation, making it suitable for installations where the front of the cabinet is unavailable or where machinery layout requires side access.
When combined with the correct compatible switch and operating mechanism, the HB145S provides dependable manual isolation for maintenance, servicing and emergency switching. Its robust pistol-style design offers a secure grip and clear switch operation in industrial environments.
Typical Applications
Industrial machinery enclosures.
Electrical control panels.
Motor control centres.
OEM production equipment.
Side-operated switchboards.
Machine safety and maintenance isolation systems.
Technical Specifications
Manufacturer
Mersen
Model
HB145S
Product type
External operating handle
Handle style
Pistol type
Operating position
Right-side operation
Handle length
145 mm
Colour
Black
Operation
Manual external operation
Compatible equipment
Selected Mersen low-voltage disconnect switches
Installation
Electrical enclosure or control-panel side
Frequently Asked Questions
What is the Mersen HB145S?
The Mersen HB145S is a black 145 mm external pistol-style handle designed for right-side operation of compatible Mersen low-voltage disconnect switches.
How does the HB145S differ from the HB145?
The HB145S is configured for right-side operation, while the standard HB145 is intended for external front operation.
What is the length of the Mersen HB145S handle?
The HB145S has an operating handle length of 145 mm.
Is the HB145S a complete disconnect switch?
No. The HB145S is an external operating handle. The compatible disconnect switch, shaft and any additional mounting components are supplied separately unless included in a complete assembly.
Where is the Mersen HB145S typically installed?
It is typically mounted on the right-hand side of an industrial enclosure, control panel, switchboard or machinery cabinet requiring safe external isolation.
Trusted by Panel Builders Worldwide
Mersen disconnect switch handles and accessories are specified by panel builders, OEM manufacturers and electrical engineers for dependable operation, installation flexibility and reliable circuit isolation in industrial electrical systems.
Manufacturer
Mersen
Model
HB145S
Product type
External operating handle
Handle style
Pistol type
Operating position
Right-side operation
Handle length
145 mm
Colour
Black
Operation
Manual external operation
Compatible equipment
Selected Mersen low-voltage disconnect switches
Installation
Electrical enclosure or control-panel side
No documents available for this product.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...