MERSEN FUSE Handle black145mm IP65 NEMA 3R HB145

Q: What protection rating does the HB145 provide?

The handle provides IP65 and NEMA 3R / NEMA 12 protection when correctly installed on compatible equipment.

Q: What is the handle length?

The Mersen HB145 features a 145 mm operating handle.

Mersen HB145 external front-operation pistol handle with a 145 mm black handle, IP65 and NEMA 3R / NEMA 12 protection for compatible low-voltage disconnect switches.

SKU: HB145MPN: HB145

List Price £79.79 ex VAT

Your Price (ex VAT)

£79.79

Manufacturer Lead Time Please contact us for a delivery time before you order

Get the best trade prices Trade exclusive

Create a trade account to unlock exclusive pricing, special offers and more.

Quantity:

SUBTOTAL (EX VAT) £79.79

Trade pricing is personalised to your account

Manufacturer Lead Time

£79.79

Why Choose the Mersen HB145 External Operating Handle?

The Mersen HB145 is a genuine external front-operation pistol handle designed for compatible Mersen low-voltage disconnect switches. Featuring a robust black finish, a 145 mm operating handle and an IP65 / NEMA 3R / NEMA 12 protection rating, it enables the safe external operation of disconnect switches installed within electrical enclosures.

Manufactured for demanding industrial environments, the HB145 provides smooth, reliable mechanical operation while helping maintain enclosure integrity against dust and water ingress. It is designed for use with compatible shaft-operated disconnect switches, allowing operators to isolate electrical circuits safely without opening the enclosure door.

Ideal for industrial control panels, switchboards and OEM machinery, the Mersen HB145 combines durable construction with dependable operation, making it an excellent choice for industrial power isolation and machine safety applications.

Key Advantages

Genuine Mersen external operating handle.
145 mm black pistol-style handle.
IP65 / NEMA 3R / NEMA 12 environmental protection.
Provides safe external operation of disconnect switches.
Durable PA66/6 and stainless steel construction.
Compatible with selected Mersen low-voltage disconnect switches.

Key Features

Manufacturer: Mersen.
Model: HB145.
External front-operation pistol handle.
145 mm handle length.
Black PA66/6 with stainless steel components.
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 operated safely from outside an enclosure, reducing the need to access live electrical equipment during normal switching. The Mersen HB145 is engineered to provide dependable mechanical operation while maintaining the enclosure's environmental protection.

Designed specifically for compatible Mersen shaft-operated disconnect switches, the HB145 is widely used by panel builders, OEM manufacturers and electrical engineers to provide safe circuit isolation across industrial installations.

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	HB145
EAN	3605340558562
Product type	External operating handle
Handle style	Pistol type
Operation	External front operation
Length	145 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
Device Type	Accessory

Frequently Asked Questions

What is the Mersen HB145?

The Mersen HB145 is an external front-operation pistol handle for compatible Mersen low-voltage disconnect switches.

What protection rating does the HB145 provide?

The handle provides IP65 and NEMA 3R / NEMA 12 protection when correctly installed on compatible equipment.

What is the handle length?

The Mersen HB145 features a 145 mm operating handle.

What type of disconnect switches is it designed for?

The HB145 is designed for compatible Mersen shaft-operated low-voltage disconnect switches requiring external front operation.

Where is the Mersen HB145 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.

UK delivery

Delivery options

Free UK delivery on orders over £200 ex VAT. Order in-stock items before 2pm Monday to Friday for next-day delivery.

This product Lead time on request

Please contact us for a delivery time before you order

Standard delivery

£8 ex VAT · free over £200

UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.

Heavier items may be charged at a weight-based or pallet rate, shown at checkout.

Collect from our showroom

Mon–Fri, 8am–5pm

Order and pay online, then collect from our showroom.

Please allow 15–30 minutes after ordering for us to prepare your order.

Northern Ireland, ROI & export

Priced at checkout

We deliver to Northern Ireland, the Republic of Ireland and overseas.

Delivery is calculated at checkout based on your destination.

Orders with mixed availability

Shipped complete

If part of your order is on a lead time, we hold it and send everything together.

Need the in-stock items sooner? Ask us and we can split the delivery.

Business customer returns

Returns & order support

Need to return an item? Find the guidance for your order below, then contact our team before sending anything back.

Stocked items

Request within 30 days

Changed your mind or ordered the wrong item? Request a return within 30 days of receipt. There is no restocking charge.

Items must be unused, in resalable condition and in their original packaging, and returns need our approval first. Return carriage is at your cost, and the original delivery charge is not refunded.

Faulty or damaged items

Tell us as soon as possible

Faulty, damaged on delivery or the wrong product supplied? Contact our team as soon as possible with the details.

We will review the issue and arrange an appropriate resolution under our terms and conditions and your statutory rights.

Made-to-order items

Manufacturer approval needed

Manufactured, configured and special-order products can only be returned with the manufacturer’s approval. Any handling charge is agreed with you when you request the return.

This does not affect claims for faulty goods or items that do not meet the agreed specification.

LED Controls showroom with electrical products on display

Let’s get your return sorted.

Send your order number, product details and reason for return. For faults or delivery damage, include photographs if available. We will confirm the next steps.

Email returns team 01706 242050

The 30-day return request period applies to change-of-mind returns for stocked items. It does not limit your statutory rights for faulty or non-conforming goods.

● Service Agreements

Credit Accounts

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?

What are your delivery times and costs?

What about warranties, returns and faulty items?

● latest blog

Discover our latest insights and
expert advice

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

by admin | Aug 11, 2026 | News

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.

LED Controls: Danfoss Drives Authorised Partner

by admin | Jan 17, 2026 | Product Spotlight

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...

LED Controls: Your Complete Control Panel Solution