Mersen HB125 external front-operation pistol handle with a 125 mm black handle, IP65 and NEMA 3R protection for compatible low-voltage disconnect switches.
SKU:HB125MPN:HB125
Price
List Priceex VAT
Your Price
Manufacturer Lead TimePlease contact us for a delivery time before you order
Get the best trade pricesTrade exclusive
Create a trade account to unlock exclusive pricing, special offers and more.
Why Choose the Mersen HB125 External Operating Handle?
The Mersen HB125 is a genuine external front-operation pistol handle designed for compatible Mersen low-voltage disconnect switches. Featuring a robust black finish, a 125 mm operating handle and an IP65 / NEMA 3R environmental rating, it provides safe, reliable operation of disconnect switches mounted inside electrical enclosures.
Manufactured for demanding industrial environments, the HB125 offers smooth mechanical operation while maintaining enclosure protection against dust and water ingress. It is designed for use with compatible external shaft-operated disconnect switches, allowing operators to safely isolate electrical circuits without opening the enclosure door.
Ideal for industrial control panels, switchboards and OEM machinery, the Mersen HB125 combines durable construction with dependable switching performance, making it a trusted solution for industrial power isolation applications.
Key Advantages
Genuine Mersen external operating handle.
125 mm black pistol-style handle.
IP65 / NEMA 3R environmental protection.
Provides safe external operation of disconnect switches.
Durable industrial construction for long service life.
Compatible with selected Mersen low-voltage disconnect switches.
Key Features
Manufacturer: Mersen.
Model: HB125.
External front-operation pistol handle.
125 mm handle length.
Black PA66/6 and stainless steel construction.
IP65 / NEMA 3R / NEMA 12 protection rating.
Designed for shaft-operated disconnect switches.
Suitable for industrial electrical enclosures.
Safe External Disconnect Switch Operation
External operating handles allow disconnect switches to be safely operated from outside an enclosure, reducing the need to access live electrical equipment. The Mersen HB125 is engineered to provide reliable mechanical operation while maintaining the enclosure's environmental protection rating.
Designed for use with compatible shaft-operated Mersen disconnect switches, the HB125 is widely used by panel builders and electrical engineers to provide safe circuit isolation in industrial applications.
Typical Applications
Industrial control panels.
Electrical switchboards.
Motor control centres.
OEM machinery.
Industrial power distribution equipment.
Machine safety isolation systems.
Technical Specifications
IP Rating
IP65
Manufacturer
Mersen
Model
HB125
Product type
External operating handle
Handle style
Pistol type
Operation
External front operation
Length
125 mm
Width
66 mm
Colour
Black
Material
PA66/6 with stainless steel components
Protection rating
IP65
NEMA rating
3R / 12
Compatible equipment
Mersen low-voltage disconnect switches
Frequently Asked Questions
What is the Mersen HB125?
The Mersen HB125 is an external front-operation pistol handle for compatible Mersen low-voltage disconnect switches.
What protection rating does the HB125 provide?
The handle is rated IP65 and NEMA 3R / NEMA 12 when correctly installed on compatible equipment.
What is the handle length?
The Mersen HB125 features a 125 mm operating handle.
What type of disconnect switches is it designed for?
The HB125 is designed for compatible Mersen shaft-operated low-voltage disconnect switches requiring external front operation.
Where is the Mersen HB125 typically used?
It is commonly installed on industrial control panels, switchboards, OEM machinery and power distribution equipment requiring safe external isolation.
Trusted by Electrical Professionals Worldwide
Mersen disconnect switch accessories are trusted by panel builders, OEM manufacturers and electrical engineers for dependable operation, durable construction and reliable performance in demanding industrial environments.
IP Rating
IP65
Manufacturer
Mersen
Model
HB125
Product type
External operating handle
Handle style
Pistol type
Operation
External front operation
Length
125 mm
Width
66 mm
Colour
Black
Material
PA66/6 with stainless steel components
Protection rating
IP65
NEMA rating
3R / 12
Compatible equipment
Mersen low-voltage disconnect switches
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
What product ranges do you supply
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Can you help specify the correct part?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Do you have stock for urgent orders?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
What are your delivery times and costs?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
What about warranties, returns and faulty items?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
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...