DIN Rail Accessories

In complex industrial 24VDC installations, protecting individual loads from overcurrent and short-circuit faults is essential for system uptime. When multiple low-power loads are powered by a central high-current supply, a single fault can pull down the entire system or cause dangerous overcurrent in the wiring. RECOM electronic fuse solutions—also known as electronic circuit breakers—provide the precision required to protect sensitive DC power systems where traditional fuses fail.

Unlike standard thermal-magnetic breakers that can be prone to nuisance tripping or slow response times, these DC e-fuse modules offer active electronic control. They provide selective load protection, ensuring that only the faulted branch is disconnected while the rest of the system remains operational. Designed for easy integration, our industrial e-fuses feature tool-free DIN-rail mounting and a 150% power boost capability, making them ideal for automation cabinets, control systems, and distributed power architectures.

The RACPRO1-4SP four channel e-fuse module is available with 4x5A or 4x10A maximum current limits and in standard or book shape (-BS) case styles. Use the product table below to compare available e-fuse solutions by current rating, protection features, and installation requirements.

Redundancy diodes (also known as OR-ing diodes) are electrical components that allow two or more power supply outputs to be safely connected in parallel. In redundancy mode, if any power supply fails, the RD module will prevent current flowing back into the failed unit, ensuring continuous uninterrupted operation. In current share mode, two power supplies can be connected in parallel to generate double the output current. The RD module will ensure that the output current is equally split between the two sources.

Redundancy diode modules are used in mission-critical applications to prevent costly downtime and to ensure fault or supply failure tolerance. Use examples include industrial automation, servers and data centers, telecommunications and packaging plants.