WAGO 787-3664 Electronic Circuit Breaker 4-Channel 24 V DC

The WAGO 787-3664 is a 4-channel electronic circuit breaker designed for 24 V DC applications. It provides selective overcurrent protection for each output channel, with adjustable current limits from 0.5 A to 6 A per channel and a total output current of up to 24 A. This device is ideal for protecting control circuits, sensors, actuators, and other DC loads in industrial automation and building infrastructure.

Advantages

• Selective protection: Each channel trips independently, minimizing downtime.
• Adjustable current per channel: Flexible configuration for different loads.
• Remote reset and manual reset: Convenient operation and integration.
• Push-in CAGE CLAMP® connection: Fast, tool-free wiring.
• Compact DIN-rail mount: Saves space in control cabinets.

Suitable for

• Industrial control panels
• Building automation systems
• Machine building
• Process control
• 24 V DC distribution boards

Key specifications

• Number of channels: 4
• Nominal input voltage: 24 V DC
• Nominal output voltage: 24 V DC
• Output current range per channel: 0.5 A ... 6 A (adjustable)
• Total output current: Max. 24 A
• Protection principle: Electronic, selective
• Mounting type: DIN-rail (TS 35)
• Connection technology: Push-in CAGE CLAMP®
• Wire size: 0.25 - 6 mm² (24 - 10 AWG)
• Operating temperature: -25 ... +70 °C
• Status indication: LED per channel (green/red)
• Reset function: Manual button, remote input
• Max. power loss: 12 W (at 24 A total)
• Short-circuit current rating (SCCR): 100 A
• Degree of protection: IP20
• Approvals: CE, cULus (UL 508, CSA C22.2 No. 14)

Recommendations

For optimal performance, use an external 25 A fuse on the input side when operating at 24 V DC. Ensure adequate ventilation and do not exceed the total output current of 24 A.