Schneider Electric Harmony 2-position Key Switch Head, Latching, 22 mm Cutout ZB4BG420

Schneider Electric ZB4BG420 is a Harmony series 2-position key switch head designed with a latching operation and a standard 22 mm cutout diameter. This black key switch head equipped with two 3131A type keys provides a secure interface for controlling machine operation modes at industrial, infrastructure, or commercial sites. It is engineered for long-term durability with a mechanical life of 1,000,000 cycles and offers reliable performance in harsh environments.

The device features a robust IP67, IP66, and IP69K ingress protection rating, making it resistant to dust, water jets, and high-pressure washdowns, and is vibration resistant due to its metal bezel design. Its 90° angle of throw and two-position operation allow precise control and easy key withdrawal in both positions, ensuring secure authorized operation.

Certified to meet CE, IEC, CSA, and UL standards, it is suitable for applications including automotive manufacturing, energy distribution systems, public works infrastructure, and control panel assembly. The switch head includes a snap-fit locking mechanism for simple mounting on XB4 compatible bodies and can be tightened securely with a single screw.

Operating temperature versatility from -40°C to 70°C expands its usability across various industrial and service sector settings. The key switch head supports safe machine operation requiring authorized key access, preventing unauthorized mode changes or operation.

This product also complements the broad range of Harmony ZB4 selector switch heads available, allowing customization of switch configurations with different positions and operators.

The key switch head features a durable black bezel with a 22 mm cutout diameter for easy installation. It operates with a latching switch operation having 2 positions and a 90° angle of throw. Equipped with two keys (type 3131A) for secure authorized operation.

Provides high mechanical life of up to 1,000,000 cycles ensuring long-lasting reliability. Robust IP67, IP66, and IP69K ratings offer excellent protection against dust, water, and vibration. Conforms to major standards including CE, EN/IEC 60947 series, CSA C22.2 No 14 and UL 508 suitable for industrial use.

Wide operating temperature range from -40°C to 70°C allowing versatile application environments. Ideal for industrial control panel builders, automotive, energy distribution and public works sectors. Features an ingenious snap-fit locking system for secure and simple mounting on compatible switch bodies.

Metal bezel construction ensures impact and vibration resistance in demanding industrial conditions.

Explore Schneider Electric Key Switch Heads and related industrial switches in EnvMart’s Electronics & Electricals Switches & Sockets category for a wide selection of quality control solutions.