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The SCHNEIDER ELECTRIC XB5AG21 is a 2-position maintained key selector switch with integrated contact blocks, designed for use in industrial control panels and machine operator stations. The switch features a normally open (NO) contact configuration and requires a key for operation, providing a physical layer of access control. The key can only be removed in the left position. With a 22mm round mounting hole and an IP69K ingress protection rating, this selector switch is built to perform in washdown, high-pressure, and high-temperature cleaning environments. Licensed electricians and control panel builders are the typical installers.
The XB5AG21 is suited for industrial and commercial applications where operator access control is required at a machine or process control station. The maintained action holds the selected position without the operator holding the switch, making it appropriate for mode selection, lockout functions, and circuit enabling across a range of automated equipment. The plastic bezel and shock-resistant, vibration-resistant, water-resistant construction support reliable service in demanding plant environments.
Designed as an OEM-style replacement or new-installation selector switch for 22mm industrial control panel cutouts meeting NEMA 13 or NEMA 4X enclosure requirements.
Installation should be performed by a licensed electrician in accordance with NEC requirements and the equipment manufacturer's wiring diagrams. De-energize the control panel and lock out all power sources before mounting or wiring the switch. Screw terminals require proper torque and conductor sizing per the panel's electrical design. Confirm key removal position and contact logic against the machine's control circuit before commissioning.
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