Magnasphere Corp HS-L1.5-101 UL634 Magnetic Contact Switch

Product Description

The MAGNASPHERE CORP HS-L1.5-101 is a UL634 Level 1 magnetic contact switch designed for use in burglar alarm and access control applications. It operates as a single closed-circuit device with integrated tamper protection, making it suitable for securing doors, windows, and access panels in security-grade installations. This type of device is typically installed by licensed alarm technicians and low-voltage security contractors who require components that meet recognized industry listing standards. The tamper feature provides an additional supervisory circuit, signaling the control panel if the switch housing is opened or removed from its mounting surface.

The HS-L1.5-101 is rated for overhead door contact applications, as indicated by its product category, making it well-suited for roll-up doors, commercial overhead doors, and similar large-access-point installations. It is commonly deployed in commercial and light industrial environments where UL634 Level 1 compliance is required by the alarm system specification or local authority having jurisdiction. Security integrators and alarm installation professionals will recognize this as a component appropriate for monitored intrusion detection systems.

Key Features

• UL634 Level 1 listed magnetic contact switch for security alarm applications
• Single closed-circuit configuration for standard normally-closed alarm loop wiring
• Integrated tamper protection provides supervisory circuit monitoring of the switch housing
• Designed for overhead door contact installations including commercial roll-up doors
• Sold as a single unit, suitable for individual door or access point installations

Compatibility

Designed as an OEM-style replacement or new-installation component for UL634 Level 1 compliant magnetic contact applications, particularly overhead door contact installations in commercial intrusion detection systems.

Installation Notes

Installation should be performed by a licensed low-voltage or alarm systems technician in accordance with applicable local codes and the system manufacturer guidelines. Power down or place the alarm panel in test mode before servicing any loop wiring to avoid false alarms or panel faults. Verify that the tamper circuit is properly terminated at the control panel to maintain supervisory function. Follow NEC Article 725 requirements for Class 2 or Class 3 low-voltage wiring as applicable to the installation.