PULS PISA-M-402 Electronic Circuit Breaker, 4-Channel, 24 VDC, 8 A per Channel, DIN Rail

Control panel builders and machine integrators use the PULS PISA-M-402 to distribute and protect 24 VDC loads across four independent channels. Each channel's current limit is selectable from 2 A to 8 A, allowing precise matching to connected devices. The module mounts on a DIN rail and provides electronic overcurrent and short-circuit protection with fast response times, reducing downtime and wiring complexity compared to multiple single-channel breakers.

Key specifications

• Nominal input voltage: 24 VDC (range 18–30 VDC)
• 4 output channels, each selectable: 2 A, 4 A, 6 A, or 8 A
• Maximum total output current: 32 A
• Electronic overcurrent and short-circuit protection
• Response time on short circuit: < 10 ms
• LED status indication per channel and collective alarm output
• Screw terminals for input and output connections
• DIN rail mounting
• Efficiency: > 99%
• Operating temperature: -25 °C to +70 °C

Why choose it

The PISA-M-402 replaces multiple single-channel circuit breakers with one compact module, saving space and installation time. Its selectable current limits allow one part number to cover various load requirements. The electronic trip mechanism reacts faster than thermal-magnetic breakers, protecting sensitive electronics from damage.

Ideal use cases

• Protecting sensors, actuators, and controllers in industrial control panels
• Distributing 24 VDC power in machinery and automation systems
• Retrofitting existing installations to add selective protection

Good to know

The module is approved for use in hazardous locations (ATEX, IECEx) and marine applications (GL). An external 35 A fuse or circuit breaker is recommended for the input. The housing combines metal and plastic for durability.