Bosch Solution 2000 Reed Switches

A magnetic contact has two aligned parts: the wired switch and a separate magnet. The switch is normally installed on the fixed frame and the magnet on the moving door or window.

When the opening is closed, the magnet holds the contact in its expected state. Opening the door or window moves the magnet away, changes the circuit state and allows the alarm panel to recognise the zone event.

Reliable operation depends on correct alignment, suitable spacing, secure fixing, protected cabling and the correct zone programming.

• Surface-mounted contacts are fitted to the face of the frame and moving section. They are generally easier to install, inspect and replace, and are available in colours suited to common frames.
• Recessed contacts fit into drilled holes in the door and frame for a discreet finish. They require suitable frame depth and careful drilling.
• Roller-ball contacts operate mechanically when the door closes and must be positioned for reliable movement without binding.

Before drilling, check for glass, metal reinforcement, wiring, narrow frame sections and manufacturer restrictions that could make recessed installation unsuitable.

Reed switches in this collection include normally closed, normally open and SPDT contact arrangements. These descriptions refer to the switch’s electrical state and must be matched to the intended alarm-zone circuit.

• Normally closed or closed-loop contacts are commonly used in alarm installations, but the complete zone design must still be confirmed.
• Normally open contacts are not a direct substitute where the system requires a normally closed circuit.
• SPDT contacts provide changeover terminals that may support different wiring arrangements when installed correctly.
• End-of-line resistors and tamper monitoring must be wired and programmed to suit the Solution 2000 zone configuration.

Do not select a contact by physical size alone; confirm the required electrical output before purchase.

The published gap is the maximum separation at which a contact may operate under the manufacturer’s stated conditions. Actual performance can change with alignment, mounting material, magnet orientation and movement in the opening.

• Install the switch and magnet closer than the maximum rated gap.
• Keep both parts aligned in the specified orientation.
• Allow for door sag, frame movement, vibration and seasonal expansion.
• Use a steel-door contact where surrounding metal may affect the magnetic field.
• Test the zone repeatedly from fully closed through the normal opening movement.

A larger advertised gap does not compensate for poor alignment or an unsuitable contact type.

Metal doors and moving commercial openings need contacts designed for the installation environment.

• Steel-door contacts use suitable housings and magnet arrangements for metal-frame installations.
• Roller and overhead-door contacts provide wider gaps and stronger housings for garage doors and shutters.
• Armoured leads help protect exposed cabling near moving or high-use doors.
• Track-mounted contacts must be positioned clear of rollers, hinges, guides and other moving parts.

Confirm the product’s environmental rating before using it in a damp, exposed or outdoor location.

Compatible hard-wired reed switches connect to available Bosch Solution 2000 alarm zones using suitable alarm cable and the required zone-circuit configuration.

• Confirm an available zone input and the intended zone type.
• Use the correct normally closed, normally open or SPDT contact terminals.
• Install the required end-of-line resistor arrangement.
• Protect and secure cables at hinges, frames and moving doors.
• Program the zone for the required entry, perimeter, instant or other supported response.
• Complete closed, open, tamper and alarm testing after installation.

Wireless alarm keyfobs may be supported through a compatible receiver, but wireless reed-switch detectors are not supported on Bosch Solution 2000.

• Identify whether the existing contact is surface-mounted, recessed, steel-door or roller-door style.
• Record the model, contact output and wiring arrangement.
• Measure the available mounting space, cut-out diameter and installation depth.
• Check the approximate closed gap and expected door movement.
• Confirm whether the magnet, cable, terminals, screws or mounting accessories are included.
• Choose a suitable colour and housing material for the opening.

Photographs of the existing contact, magnet, wiring and door frame can help CTC Communications identify a suitable replacement.

• Wired or wireless reed switches for Bosch alarm systems
• The top three reed switches
• Browse all security alarm reed switches
• Compare Bosch Solution 3000 alarm systems

CTC Communications provides professional alarm installation across Sydney. A technician can select the correct contact, route the cable, configure the zone and test the protected opening.

Compatible reed switches and installation accessories are available for delivery Australia-wide. Review the individual product listing for contact output, measurements, gap rating, environmental suitability and supplied inclusions.

CTC Communications is a Bosch Certified Platinum Partner and has supplied security products and installation services since 1993.