Here are some key features of the AB safety switch 440G-T27127:

Interlock Switch: It is an electromechanical switch that uses positive-opening contacts to detect the position of a guard or gate.

Dual Channel: The switch has two separate signal paths or channels to increase safety by providing redundancy. Both channels must be activated for the machine to operate.

Tamper Detection: It has built-in tamper detection to signal when someone attempts to defeat or tamper with the switch.

Mechanical Key: The switch uses a mechanical key to allow access for authorized personnel. The machine cannot be restarted until the key is removed.

LED Indication: It includes built-in LED indicators to provide visual feedback on the status of the switch, such as the guard being closed or open.

Easy Installation: The 440G-T27127 is designed for easy installation on a variety of guards and doors and can be mounted in different orientations.