Large Circuit Breaker Lockout
FREE DELIVERY
Lockout in Confidence
- Total Isolation Solution: Engineered to secure large circuit breakers across industrial, commercial and residential settings, providing dependable energy isolation.
- Versatile Coverage: Adapts seamlessly to single-, double-, triple- and four-pole breakers without needing multiple lockout devices, delivering unmatched flexibility.
- Built to Last: Constructed from UV-resistant plastic, this lockout withstands chemical exposure, impacts and extreme temperatures, guaranteeing dependable performance.
- Effortless Setup: Secures in seconds with an internal grub screw and standard flat-blade screwdriver, eliminating complex tool kits and simplifying lockout procedures.
- Padlock Ready: Features an integrated 8 mm shackle hole to accept a standard safety padlock, providing secure, single-point lock-out and easy visual verification of isolation status.
- Everlasting Visibility: Coated in bright, fade-resistant yellow finish, this lockout device remains prominently visible by instantly signalling locked-out circuits to all personnel.
- Universal Fitment: Designed to grip large-toggle breakers with up to 23 mm internal gap, this adaptable lockout delivers consistent performance across diverse breaker models.
- Space-Saving Design: With a sleek profile, this compact lockout minimises storage while guaranteeing robust isolation where space is at a premium and ideal for mobile service.
- Overall Dimensions: 60(H) × 120(W) × 40(D) mm – compact yet substantial enough to cradle most large-toggle breakers securely under varying environmental conditions.

Dependable Protection, Simplified Safety
The Large Circuit Breaker Lockout delivers straightforward, reliable isolation for every maintenance task, ensuring peace of mind from the first fit. Its universal design and durable build mean fewer parts to manage and faster lock-out procedures on site. By streamlining safety, teams spend less time setting up and more time getting the job done.
Built to handle the demands of busy workshops, warehouses and commercial sites, this device brings consistency to every lock-out operation. With a clear visual presence and uncomplicated installation, you can trust it to keep circuits off and keep personnel safe—every time.
Versatile Fit
Its adaptable design accommodates single-, double-, triple- and four-pole breakers without any additional accessories. Whether you’re switching between different panel types or responding to unexpected circuit configurations, one device covers them all.
By fitting breakers with up to a 23 mm internal gap, it eliminates the need for multiple lock-out models and cuts down on kit bulk. Teams benefit from reduced inventory and quicker selections, making lock-out/tag-out operations more efficient.


Rugged Construction
Crafted from reinforced, UV-resistant plastic, it stands up to knocks, chemical exposure and extreme temperatures without compromising performance. This resilience ensures that the lockout maintains its shape and function, even in the toughest industrial environments.
The high-visibility yellow finish resists fading and keeps locked-out circuits clearly identifiable under fluorescent lighting or direct sunlight. As a result, workers can quickly confirm isolation status, cutting down on errors and enhancing on-the-spot safety checks.
Item Information
- Dimensions: 60 (H) × 120 (W) × 40 (D) mm
- Weight: 0.1 kg for easy handling and portability
- Padlock hole accepts 8 mm shackle diameter
- Internal gap: 23 mm accommodates large-toggle breaker toggles
- Material: reinforced, UV-resistant plastic ensures durability
- Compatible with 1–4 pole circuit breakers universally
- Bright yellow finish maintains visibility under UV exposure
- Secured via internal grub screw and flat-blade screwdriver
- Compact profile minimises obstruction in crowded electrical panels
- Supports single-padlock-only lock-out for simplified isolation
- Resistant to impact, chemicals and extreme temperatures
- Universal fit reduces inventory needs, replaces multiple lockout models

Quick-Set Installation
A simple internal grub screw and a standard flat-blade screwdriver are all you need to secure the device in seconds. This minimalist approach removes the reliance on specialised tools and lets maintenance crews lock out circuits swiftly.
With no complex assemblies or fiddly parts, every installation delivers a firm, reliable hold on large-toggle breakers. The time saved during setup translates directly into faster maintenance cycles and reduced operational downtime.


Single-Padlock Ready
Its built-in 8 mm shackle hole accepts a standard safety padlock for secure, single-point isolation. By allowing one lock to anchor the device firmly in place, it removes uncertainty and guarantees circuits stay in the off position during work.
This straightforward lock-on approach also keeps kits and training simple, as teams only need to carry and manage one type of padlock. Quick visual checks confirm lock-out status at a glance, reducing the chance of accidental re-energisation.
UV-Stable Finish
The bright, fade-resistant yellow coating maintains high visibility even after prolonged exposure to sunlight or harsh indoor lighting. This durable finish stands up to UV rays and cleaning agents without chalking or discolouring.
Keeping lock-out points clearly marked helps everyone on site spot isolated circuits immediately, cutting down on safety checks and preventing oversights. Over time, you save on replacement parts and maintain consistent visual cues across all panels.


Universal Compatibility
Designed to fit large-toggle circuit breakers with up to a 23 mm internal gap, it works across the vast majority of breaker models in use today. This broad compatibility means you don’t need multiple sizes or special adapters cluttering your toolbox.
Switching between panels becomes seamless, with one device covering single through four-pole configurations. The result is faster set-up, reduced kit complexity and fewer chances for error when selecting the right lock‐out equipment.
Compact Profile
Measuring just 60 × 120 × 40 mm, the low-bulk design tucks neatly behind breaker toggles without blocking adjacent switches. Its slim form factor ensures it won’t obstruct wiring trays or panel doors, even in cramped control cupboards.
Despite its small footprint, the device delivers robust energy isolation, providing the same reliable lock-out performance as larger, bulkier alternatives. Portability is also improved, as engineers can fit multiple units in a pocket or pouch for mobile maintenance tasks.

Full Specifications
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Free Next Day Delivery
Experience the ease of free next-working-day delivery to mainland Great Britain on orders placed before 3 pm. Whether you need routine supplies or a Large Circuit Breaker Lockout in a hurry, you can count on our rapid service to keep your operations running smoothly. This swift turnaround not only saves you time but also gives you the confidence to order exactly what you require, exactly when you need it.
No hidden fees or complicated shipping tiers—just straightforward, reliable delivery that arrives on your doorstep the following working day. By eliminating waiting periods, we help you maintain productivity and peace of mind, knowing essential equipment is never out of reach.
Dedicated Support
Our friendly team is on hand via a freephone line at 0800 012 6777, Monday to Friday from 8 am to 5 pm, to guide you through every step of your purchase. Whether you have a technical query or need advice on the right tools for the job, we provide personalised care tailored to your exact requirements. You’ll never be passed from pillar to post—our specialists stay with you until your questions are fully answered.
From order assistance to troubleshooting, you’ll experience a level of reliability and accessibility that sets us apart. We pride ourselves on building lasting relationships, ensuring you always feel supported and valued whenever you call upon us.


Guaranteed Quality
Enjoy complete peace of mind with our 1-year parts and labour warranty on all Lockout Equipment, demonstrating our unwavering faith in product performance. Should anything fall short of your expectations, we’ll cover the repair or replacement at no extra cost, so you can focus on the task at hand without worrying about unexpected expenses.
This commitment to quality underscores our dedication to your safety and satisfaction, reflecting the high standards we set for ourselves. With our warranty in place, you can trust that every purchase is backed by robust support and enduring reliability.
Warranty
1 year parts / labour
Price Promise
We match any price
Easy Returns
Return or exchange
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