KLS-1/3 Keylock Switch

About KLS-1/3 Keylock Switch

The KLS-1/3 Keylock Switch is an electromechanical switching component manufactured by Elcom International Pvt. Ltd. It is designed for applications where electrical switching needs to be controlled through a physical key rather than a conventional push button or toggle switch. Its key-operated mechanism helps restrict operation to personnel who have access to the appropriate key, making it suitable for control panels, electronic instruments, security-related equipment, and other low-voltage control applications.

The KLS-1/3 belongs to the KLS-1 series and features a three-position key-removal arrangement. This allows the key to be removed in three designated positions, depending on the mechanism's configuration. The key-operated mechanism can be incorporated into an equipment control circuit to provide authorized switching or selection between operating states. The precise contact operation should be confirmed using the manufacturer's terminal diagram before connecting it to a circuit.

The switch is designed for panel mounting with a screw-mounted fixing arrangement. Its body is made from engineering thermoplastic, while the key and key lever are steel with nickel plating. The terminals are brass with silver plating, providing conductive connection points for soldered wiring. This construction is intended for compact installation in electronic equipment and control panels.

The manufacturer's series specification lists a nominal rating of 12 V DC at 25 mA, making the switch appropriate for low-current control and signal circuits within its specified electrical limits. It should not be assumed suitable for directly switching high-current loads, motors, heaters, or mains-powered equipment unless the exact product rating and circuit design permit such use.

The KLS-1/3 is suitable for equipment that requires key-controlled access, repeatable switching, and a compact panel-mounted interface. Typical uses include instrument panels, control consoles, electronic equipment, access-control circuits, and machinery control systems where the switch is used within its verified electrical rating.

Key Features

• Three-position key-removal arrangement

• Key-operated electromechanical switching mechanism

• Compact panel-mount design with screw fixing

• Engineering thermoplastic body

• Steel key and key lever with nickel plating

• Brass terminals with silver plating

• Solder-type electrical terminals

• Initial contact resistance of 10 m maximum

• Minimum electrical life of 10,000 cycles

• Designed for low-current control and signal applications

• Manufacturer reference standard: IEC 61058-1 series

Applications

• Electronic instrument panels

• Low-voltage control circuits

• Industrial equipment control interfaces

• Security and restricted-access equipment

• Control consoles and selector panels

• Electronic devices requiring key-controlled operation

• Equipment enable/disable and mode-selection circuits, where compatible with the actual contact arrangement