M3SS1-20B

The M3SS1-20B requires a Ø29 mm (1.14") cutout in the control panel. The bezel diameter is 30 mm (1.18"), and the total depth is 48.5 mm (1.91").

The M3SS1-20B is a 3-position maintained switch, meaning each position (Left, Center, Right) remains engaged until manually switched to another position.

The M3SS1-20B weighs 0.015 kg per unit. It is packaged in quantities of 10.

No, the M3SS1-20B is a non-illuminated switch. For illuminated variants, select ABB’s M3SS series with LED-compatible contact blocks.

The M3SS1-20B is compatible with ABB’s modular contact blocks (sold separately), such as those in the M3SS series. Refer to ABB’s catalog for specific part numbers.

The M3SS1-20B supports up to three separate circuits—one per position (Left, Center, Right)—using a combination of NO and NC contacts in the left and right positions.

The M3SS1-20B is designed for panel mounting with a Ø29 mm cutout. It does not include DIN rail mounting hardware; use appropriate panel mounting methods.

The M3SS1-20B is designed for indoor industrial environments. For outdoor or harsh conditions, additional protection (e.g., enclosures) is required.

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