Omron D4BL Series Door Switch, Power to Unlock

This door switch is a metal-housed safety interlock designed for industrial control panels and machinery access points, offering environmental protection for use where ingress resistance is required. It operates as an access-control device to detect door position and interfaces with control systems to permit or inhibit machine operation according to safety logic.

• IP67 rated enclosure protects against dust and temporary immersion for harsh settings
• 24V DC contact voltage supports low-voltage control circuits
• 300mA contact current suits signalling and interlock circuit loads
• NC and NO safety contacts provide both monitoring and switching options
• Screw terminals enable secure wiring termination for industrial installations
• Conduit entry using 1/2 inches NPT simplifies conduit and cable gland connection

• Suitable for safety interlocks on production machinery guarding
• Ideal for control cabinet door monitoring in automation systems
• Used with access control circuits requiring both normally closed and open contacts
• Can be used for machine start-permit logic in assembly lines
• Suitable for environmental enclosures in outdoor automation sites

The body is formed from metal to provide enhanced durability against impact and repeated operation in industrial environments.

It carries CSA, CCC and UL recognitions, indicating assessment to multiple regional standards.

It accepts a 1/2 inches NPT conduit entry and uses screw-type terminals for fixed, vibration-resistant connections.

Yes, it is compatible with power-to-lock and power-to-unlock arrangements for controlled access interlocks.

The housing extends to a depth of 46.3mm with a length of 116.5mm and a width of 123.5mm, allowing planners to assess panel and door clearance.

Actuators must be purchased separately. Stock no. 746-7208 incorporates an easy-to-see indicator for monitoring.

TUV EN60947-5-1, BIA GS-ET-19, SUVA, UL508, CSA C22.2, No.14.