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Two-Wire Fire Alarm Systems
Two-wire fire alarm systems are an evolution of conventional fire systems. Using the same principal technology as conventional systems with one key difference, they allow all field devices such as detectors, manual call points and sounders to be installed on the same set of cables without the need to install separate circuits for the sounder devices. This allows for cost savings as less cabling is required and installation time is quicker.
Two-wire fire alarm systems are often the preferred choice for use in smaller applications or where there are more budget restrictions.
We stock a wide range of two-wire fire alarm panels, detection devices, sounders, interfaces and peripherals from industry leading brands.
Two-wire fire alarm panels (also known as bi-wire, sav-wire or twin-wire) offer a distinct benefit over standard conventional systems. They allow fire alarm sounder devices to be installed on the same pair of cables as fire detectors and manual call points which reduces installation costs. Most two-wire fire panels require the use of specifically compatible devices to operate correctly.
Two-wire fire detectors are designed to operate on a two-wire circuit and are used alongside a compatible two-wire fire alarm panel (also known as bi-wire, sav-wire or twin-wire). The two-wire design allows for the fire detectors to be installed on the same pair of cables as the sounder devices, reducing installation costs compared to standard conventional systems.
Unlike most conventional systems, two-wire detectors require the use of a specifically compatible two-wire fire panel and supporting devices, usually from the same brand or range.
From £3.64 Inc VATTwo-wire manual call points are a fire alarm activation device which are installed to allow building users to manually trigger the fire alarm system from various points in the building. The two-wire design allows for the manual call points to be installed on the same pair of cables as detectors and sounders, reducing installation costs.
Two-wire manual call points are only compatible with specific two-wire fire alarm panels and fire detectors relative to the brand/model being used.
From £9.92 Inc VATTwo-wire fire alarm sounders and visual devices are alarm and indication devices designed to operate with specifically compatible two-wire fire alarm panels and fire detectors. They provide the primary source of alarm and indication on these systems. The two-wire design allows for the sounders and visual devices to be installed on the same pair of cables as the fire detectors and manual call points, providing cost savings on installation.
Compatibility is restricted to the specific brand/range being used on the rest of the system.
From £21.12 Inc VATWe offer a full range of accessories for two-wire fire alarm systems such as detector bases, relays, interfaces and remote indicators etc.
From £0.84 Inc VAT
