Safety-door Switch

D4BS

The Special Operation Key Activates a Direct Opening Mechanism to Open the Contacts and Shut Off Control Circuits when Protective Doors Are Opened on Machine Tools or Other Equipment

Switches

Consult with your OMRON representative when ordering any models that are not listed in this table. 

Actuator

Conduit outlet

Built-in switch mechanism

1NC/1NO
 (Slow-action)

2NC
 (Slow-action)

2NC/1NO
 (Slow-action)

Shaft

1-conduit type

Pg13.5

D4NH-1AAS

D4NH-1BAS

D4NH-1CAS

G1/2

D4NH-2AAS

D4NH-2BAS

D4NH-2CAS

M20

D4NH-4AAS

D4NH-4BAS

D4NH-4CAS

2-conduit type

G1/2

D4NH-6AAS

D4NH-6BAS

D4NH-6CAS

M20

D4NH-8AAS

D4NH-8BAS

D4NH-8CAS

Arm lever

1-conduit type

Pg13.5

D4NH-1ABC

D4NH-1BBC

D4NH-1CBC

G1/2

D4NH-2ABC

D4NH-2BBC

D4NH-2CBC

M20

D4NH-4ABC

D4NH-4BBC

D4NH-4CBC

2-conduit type

G1/2

D4NH-6ABC

D4NH-6BBC

D4NH-6CBC

M20

D4NH-8ABC

D4NH-8BBC

D4NH-8CBC

Actuator

Conduit outlet

Built-in switch mechanism

3NC
 (Slow-action)

1NC/1NO MBB
 (Slow-action)

2NC/1NO MBB
 (Slow-action)

Shaft

1-conduit type

Pg13.5

D4NH-1DAS

D4NH-1EAS

D4NH-1FAS

G1/2

D4NH-2DAS

D4NH-2EAS

D4NH-2FAS

M20

D4NH-4DAS

D4NH-4EAS

D4NH-4FAS

2-conduit type

G1/2

D4NH-6DAS

D4NH-6EAS

D4NH-6FAS

M20

D4NH-8DAS

D4NH-8EAS

D4NH-8FAS

Arm lever

1-conduit type

Pg13.5

D4NH-1DBC

D4NH-1EBC

D4NH-1FBC

G1/2

D4NH-2DBC

D4NH-2EBC

D4NH-2FBC

M20

D4NH-4DBC

D4NH-4EBC

D4NH-4FBC

2-conduit type

G1/2

D4NH-6DBC

D4NH-6EBC

D4NH-6FBC

M20

D4NH-8DBC

D4NH-8EBC

D4NH-8FBC

Note: All models have slow-action contacts with certified direct opening mechanisms on NC contacts only.