Schneider Electric ZB4BD28 2-position Selector Switch 22mm

Product Description

The SCHNEIDER ELECTRIC ZB4BD28 is a 2-position maintained-action selector switch head designed for industrial control panel and machine operator interface applications. It features a black toggle operator in a round, metal-bezel head that mounts through a 22 mm panel hole. The maintained (MA) action means the switch stays in the selected position until physically moved. Rated IP66 and NEMA 4X and 13, it resists water ingress, shock, and vibration, making it suitable for demanding environments where the operator interface is exposed to washdowns or harsh conditions. Licensed electricians and industrial control technicians are the primary installers.

This selector switch head is used in industrial and commercial control panel assemblies where a durable, non-illuminated toggle operator is required. Typical applications include machine control stations, process control panels, and motor control circuits in manufacturing, marine, and infrastructure settings. The metal bezel and IP66-rated construction make it appropriate for both indoor and outdoor enclosures. It is sold as an individual operator head unit, quantity one per package.

Key Features

• 2-position maintained action keeps the switch in the selected position without spring return
• Black toggle operator on a round metal-bezel head for clear tactile identification
• 22 mm panel cutout fits standard 22 mm control station enclosures and panel holes
• IP66 and NEMA 4X and 13 rated for water, shock, and vibration resistance
• Non-illuminated design for straightforward selector applications without indicator lighting
• Certified to UL 508, CSA C22.2 No. 14, EN/IEC 60947-5-1, and multiple international standards including DNV, GL, and RINA

Compatibility

Designed as a 22 mm-class toggle selector switch operator head for use with compatible ZB4 series contact blocks and body assemblies in standard industrial control station configurations.

Installation Notes

Installation should be performed by a qualified electrician or industrial controls technician following applicable NEC and local electrical codes. De-energize and lock out the control panel circuit before installing or replacing any operator head or contact block assembly. Verify that the panel cutout is 22 mm and that the mating contact block is rated for the intended circuit voltage and current before completing the assembly. Do not overtighten the panel-mount nut, as this can crack the bezel or distort the enclosure wall.