George Risk Industries S2020-T-BL Magnetic Reed Switch

Product Description

The George Risk Industries S2020-T-BL is a magnetic reed switch supplied as a single unit in a black finish. Magnetic reed switches are used to sense the presence or position of a magnet, opening or closing an electrical circuit when the magnetic field is applied or removed. This type of switch is a common component in security systems, door and window monitoring circuits, and other low-voltage detection applications. Licensed electricians and security system technicians are the typical installers. The black finish allows the switch to blend into dark-colored surfaces and trim in both residential and light commercial environments.

The S2020-T-BL is suited for use in miscellaneous contact and sensing applications where a compact, magnetically actuated switch is required. Its single-unit packaging makes it appropriate for service replacement, small-scale installations, and control panel integration. The black color variant is commonly selected when aesthetics matter or when the switch must be discretely mounted on dark door frames, window sashes, or equipment enclosures.

Key Features

• Magnetic reed switch design for reliable contactless actuation
• Black finish for low-visibility mounting on dark surfaces
• Sold as a single unit for replacement or individual installation use
• Compact form factor suitable for door, window, and panel contact applications
• Categorized as a miscellaneous contact component for broad application flexibility

Compatibility

Designed as an OEM-style replacement or supplemental component for low-voltage magnetic contact sensing circuits in residential and light commercial security and monitoring systems.

Installation Notes

Installation is typically performed by licensed electricians or certified security system technicians. De-energize the circuit and verify zero voltage before handling or wiring the switch. Follow applicable NEC guidelines for low-voltage wiring and secure the switch firmly to the mounting surface to ensure consistent magnetic actuation. Do not exceed the switch rated electrical parameters, which should be confirmed against the manufacturer data sheet prior to installation.