| Category | |
| Manufacturer Name | |
| Actuator Type | |
| Breaker Type | |
| Current Rating | |
| Current Rating (Amps) | |
| Mounting Type | |
| Number of Poles | |
| Voltage Rating | |
| Width |
The Phoenix Contact 0903037 is an electronic miniature circuit-breaker designed to selectively protect 24V DC load circuits. It features active electronic current limitation for short circuits and an overload shutdown function starting from 1.1 times the nominal current (I_N). This ensures faster reaction to overloads than the power supply unit, restricting residual current to 1.3 - 1.8 times the nominal current.
This circuit breaker supports capacitive loads up to 20,000 µF and provides clear signaling through an LED, SF status output, or F alarm output. It can be reset manually via a slide switch or electronically using the RE reset input. The device has a compact design width of 12.5 mm and is suitable for DIN rail mounting (NS 35) using screw connections.
Key properties include selective load protection with an electronic shutdown characteristic curve, active current limitation, and a nominal current of 8A. It is designed for safe overload shutdown and features an integrated fail-safe element adapted to the nominal current. Wiring is simplified using power rails and plug-in bridges.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The current rating is 8A.
The voltage rating is 24V.
It is a solid state circuit breaker.
It is mounted on a DIN rail.
Safe overload shutdown occurs from 1.1 times the nominal current (I_N) upwards.
It can handle capacitive loads of up to 20,000 µF.