Schneider Electric ZB5AG4 Key Selector Switch Maintained

Product Description

The SCHNEIDER ELECTRIC ZB5AG4 is a maintained-action key-type selector switch operator designed for industrial and commercial control panel applications. The round head fits a standard 22mm panel cutout and accepts a black key for operation, with key removal allowed in any position. The unit carries an IP69K ingress protection rating, making it suitable for environments that require high-pressure washdown resistance. This operator head is the switch-only component and pairs with a contact block assembly for a complete switching circuit. Licensed electricians and control panel builders are the typical installers.

The ZB5AG4 is used in industrial control stations, machine panels, and process equipment where a maintained selector position is required and key-controlled access adds a layer of operational security. Its vibration-resistant and water-resistant construction suits demanding plant-floor environments. The NEMA 4X and NEMA 13 ratings extend its suitability to food processing, chemical, and outdoor enclosure applications where corrosion and fluid ingress are ongoing concerns.

Key Features

• Maintained (MA) operation holds the selected position without continuous operator input
• Key removal allowed in any switch position for access control flexibility
• IP69K rated for high-pressure, high-temperature washdown environments
• NEMA 4X and NEMA 13 rated for corrosion and fluid-ingress resistance
• Round head fits standard 22mm panel cutout
• Vibration-resistant construction for high-cycle and mobile equipment installations

Compatibility

Designed as an OEM-style operator head for 22mm modular selector switch assemblies requiring a maintained key-type operator. This is the operator head only and requires a compatible contact block for a complete switching unit.

Installation Notes

Installation should be performed by a licensed electrician in accordance with NEC and applicable local codes. De-energize and lock out the control panel before mounting or wiring any switch components. The operator head mounts into a 22mm panel cutout and secures with the corresponding mounting hardware before the contact block is attached. Do not apply torque or force beyond what is required to seat the mounting nut flush against the panel surface.