Universal MCB Lockout Cup Screw Orange Cirlock
Cirlock universal MCB lockout features a cupped screw for delicate toggles, 8mm max toggle clamp and 8mm padlock hole in orange. Ideal for lockout/tagout.
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Alternatively Known As: Universal Miniature Circuit Breaker Lockout, MCB Lockout Device, Circuit Breaker Lock Dog, UCL-3 Lockout
- Part Number: UCL-3
- Application: Miniature circuit breakers
- Material: Nylon plastic with zinc-plated metal cup set screw
- Maximum Toggle Thickness: 8 mm
- Padlock Hole: 1 x 8 mm
- Colour: Orange
- Pack Size: Single pack
- Manufacturing: Made in Australia
- Dimensions (H x L x W): 10mm x 42mm x 25mm
- Weight: 0.1 kg
- Cupped screw protects delicate miniature circuit breaker toggles
- Universal clamp design suits most MCBs and 1–4 pole circuit breakers
- Mechanically prevents unauthorised or unintended re-energisation when secured with a padlock
- Bright orange colour provides clear lockout identification
- Compact, reusable design for electrical lockout/tagout procedures
- Locking miniature circuit breakers in the OFF position
- Electrical maintenance and service isolation procedures
- Commercial, industrial and facilities-management lockout/tagout programmes
- Use with a compatible safety padlock and danger tag
- AS/NZS 4836:2023 is relevant to safe working and electrical isolation procedures involving lockout/tagout; Cirlock does not separately state that the UCL-3 itself is certified to this standard. ([buildinginformationgateway.com.au](https://www.buildinginformationgateway.com.au/library/as-nzs-4836-2023-safe-working-on-or-near-low-voltage-and-extra-low-voltage-electrical-installations-and-equipment?utm_source=openai))
- Durable, reusable construction can reduce replacement waste compared with single-use isolation aids
- Nylon plastic construction is lightweight, reducing material and transport demand
- Supports safer maintenance practices that can extend the service life of electrical equipment
No fixed product warranty period was located. Cirlock’s published terms state that warranties are subject to any written warranty provided and applicable statutory rights; where a remedy applies, Cirlock may repair, replace, supply an equivalent product or reimburse the replacement or repair cost. ([cirlock.com.au](https://www.cirlock.com.au/wp-content/uploads/2025/09/Cirlock-Catlog-Version25-FULL-Catalogue.pdf?utm_source=openai))
Available through Cirlock and authorised Australian distributors; the manufacturer lists the UCL-3 as in stock in Buderim, Queensland. ([cirlock.com.au](https://cirlock.com.au/products-shopping/ucl-3-universal-lockout-for-mcbs-cup-screw-orange?utm_source=openai))
