Cell Isolation Boxes
What Is A Cell Box
Cell Boxes
Our Cell Isolation Boxes provide prisons with a secure and efficient way to isolate cell lighting and power using a key-controlled system. Designed specifically for custodial environments, they ensure staff safety, compliance, and reliable operation every day.
Single Cell Boxes
A secure, key-operated solution designed to isolate power in individual cells while maintaining safety and compliance.
- Isolates a single cell’s power with a key
- Maintains essential lighting supply
- Compact, durable, and easy to fit
Dual Cell Boxes
Engineered for paired cells or wings, offering two key-operated circuits with clear indicator lamps for safe control.
- Independently isolate two cells
- Safe reset status indicator
- High security design
Our Cell Box Benefits
Why Choose Our Cell Boxes?
Our Cell Isolation Boxes deliver secure, compliant, and reliable power control, purpose-built for the demanding needs of UK prisons.
Secure Access
Key-controlled operation ensures only authorised staff can isolate or reset power, reducing risk and improving safety.
Full Compliance
Designed to meet UK custodial standards, with certification and testing for reliable operation in prison environments.
Built to Last
Heavy-duty components including RCBOs, relays, and breakers provide long-term durability under constant use.
Clear & Reliable Operation
Indicator lamps and separated keys for isolation/reset make control straightforward and error-free for staff.
info & FAQ
Questions & Key Information
Our Cell Isolation Boxes provide secure, compliant control of prison lighting circuits. Explore the differences, key benefits, and FAQs to find the right option.
Single Cell Box
- Standard cells with one circuit
- 1 × ON/OFF keys
- 1 × Reset keys
- 1 × LED (ON status)
- Smaller enclosure
- BS 7671, MoJ standards
- 230V AC
Dual Cell Box
- Cells requiring independent control
- 2 × ON/OFF keys
- 2 × Reset keys
- 2 × LEDs (one per circuit)
- Larger enclosure
- BS 7671, MoJ standards
- 230V AC
Single Cell Box
- Standard cells with one circuit
- 1 × ON/OFF keys
- 1 × Reset keys
- 1 × LED (ON status)
- Smaller enclosure
- BS 7671, MoJ standards
- 230V AC
Dual Cell Box
- Cells requiring independent control
- 2 × ON/OFF keys
- 2 × Reset keys
- 2 × LEDs (one per circuit)
- Larger enclosure
- BS 7671, MoJ standards
- 230V AC
What is the difference between a single and dual cell box?
A single cell box isolates one lighting circuit, while a dual box provides two separate isolations (e.g., general and night lighting).
Are your cell boxes compliant with prison regulations?
Yes. They are built to BS 7671 and relevant BS EN standards, with anti-tamper fixings and keyed isolation suited to secure environments.
Can cell boxes be retrofitted into existing prisons?
Yes. They are available in both surface- and flush-mount options, making them suitable for new builds and retrofit projects.
How long does delivery and installation take?
Standard lead times are 5–10 working days from approval. Installation time depends on site access and number of units required.
Do cell boxes support emergency lighting circuits?
Yes. They can be configured to work with emergency lighting and low-level night lighting, depending on site requirements.
What guarantee comes with your cell boxes?
Every installation includes a 12-month workmanship guarantee plus full manufacturer warranty on all components.
Do your engineers have clearance to work in prisons?
Yes. Our team is EL1-cleared and has extensive experience working in prisons, courts, and secure healthcare environments.
Can I get technical drawings or a spec sheet before ordering?
Absolutely. We provide full technical documentation, including wiring diagrams, dimensions, and enclosure specifications, on request.
Accreditation & Guarantee
Our Standards & Guarantee
BS EN standards
Cell isolation boxes are built to BS 7671 and BS EN safety standards, ensuring every installation meets strict UK custodial electrical compliance requirements.
NICEIC Approved
As a NICEIC accredited contractor, our installations are assessed for safety, compliance, and quality—delivering full confidence to secure-site facility managers.
Secure Site Clearance
Our EL1-cleared engineers have proven prison, court, and secure-facility experience, ensuring installation is safe, compliant, and seamless in restricted environments.
Workmanship Guarantee
Every installation includes a 12-month workmanship guarantee plus full manufacturer cover, giving total peace of mind and reliable aftercare for your system.
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