Omron D4BL Series Door Switch, Power to Unlock

Omron D4BL Series Door Switch, IP67, Metal Housing - D4BL-1CRA-A

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.

Features & Benefits

• 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

**Applications**

• 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

What enclosure material is used to withstand mechanical wear?

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

Which approvals indicate acceptance for various markets?

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

How is the switch mounted electrically to plant wiring?

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

Does the unit support power-operated locking mechanisms?

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

What are the installation depth and footprint considerations?

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.

Notes

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

Standards

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