Alarm Cable
Alarm cable is a multicore, low-voltage cable that connects an alarm control panel to detectors, keypads, door contacts and sounders. We stock white security alarm cable in 4, 6, 8 and 12 core on 100mt coils, plus Kilflam Enhanced 3000 4 core fire alarm cable for life-safety systems.
Pick the core count that covers each device with spares. On a trade account you get trade pricing, and in-stock coils ordered before the 5pm weekday cut-off arrive next working day in NI and ROI.
How to choose the right alarm cable
Alarm cable comes in two very different families: security (intruder) alarm cable and fire alarm cable. They are not interchangeable, so the first step is always to confirm which type of system you are wiring.
Security alarm cable
Multicore security cable carries power and signal between the panel and devices. Choosing the core count is a matter of adding up what each device needs:
- 4 core – simple devices such as door contacts or basic sensors (power plus one signal pair).
- 6 core – PIR detectors with alarm and tamper circuits.
- 8 core – keypads, sounders or detectors with extra outputs, leaving spare cores.
- 12 core – trunk runs between the panel and multiple devices, or complex keypads.
Always leave spare cores in case a device needs changing later; it costs little at first fix and saves a re-run.
Fire alarm cable
Fire detection and alarm circuits must keep working during a fire, so they need fire resistant cable such as Kilflam Enhanced 3000. Standard and enhanced grades are specified for different system categories, so check the system design and the applicable fire alarm standard (BS 5839-1 in the UK) before buying. Use metal clips or fixings that will not fail in a fire, and see our full fire resistant cable range for 2 core and earth options.
Installation tips
Keep alarm cables segregated from mains wiring to reduce interference and false alarms, and never share a compartment unless the cables are suitably rated. Conceal runs where possible, as exposed cable is easier to tamper with. Use mini trunking on solid walls, and connect to panels and detectors following the manufacturer's diagrams. For the system hardware itself, browse our fire alarm systems.
Meteor Electrical is a family-run wholesaler with 5,000+ products in stock. Orders over £30 / €35 ex VAT ship free, and credit accounts are available subject to approval. Call 028 8675 1515 (048 from ROI) for help.
FAQ's
- How many cores do I need for a PIR detector?
- Can I use security alarm cable for a fire alarm system?
- Is alarm cable screened?
- Can alarm cable run in the same trunking as mains cables?
- Can I use alarm cable for CCTV or access control?
- How should alarm cable be fixed?




