B&R X20DO4F49 2NO 2CO Relay Module

X20DO4F49 Mixed Relay Output Module

B&R X20DO4F49 offers four relay outputs with mixed contact types. Two channels provide normally open contacts. Two channels provide changeover contacts (CO). Each output handles up to 250 VDC or 240 VAC. Single-channel isolation ensures independent operation. Ideal for applications requiring both simple switching and selectable NO/NC logic.

Technical Specifications

• Outputs: 4 relay, mixed contact configuration
• Contact Types: 2 normally open (NO) + 2 changeover (CO)
• AC Voltage: Up to 240 VAC
• DC Voltage: Up to 250 VDC
• Isolation: Single-channel isolated outputs
• Changeover Contacts: Common, normally open, normally closed terminals
• Temperature: -25 to 60°C horizontal, -25 to 50°C vertical
• Certifications: CE, UL, ATEX Zone 2, DNV, CCS, LR, KR, ABS, BV

Package Contents

• 1x X20DO4F49 mixed relay module
• Quick start guide
• Shipping via FedEx, UPS, DHL
• Terminal block sold separately

FAQ

Q: What is a changeover (CO) contact?

It has one common terminal that switches between normally open and normally closed positions.

Q: Why choose X20DO4F49 over standard relay modules?

The mixed NO and CO contacts provide flexibility for both simple and complex switching logic.

Q: Can it switch DC loads higher than 30V?

Yes. It handles up to 250 VDC for industrial DC applications.