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The Phoenix Contact 0903022 is an electronic miniature circuit-breaker from the CLIPLINE EC-E... series, designed to selectively protect 24V DC load circuits. It features active electronic current limitation for short circuits and an overload shutdown function that activates from 1.1 times the nominal current (IN). This design ensures faster reaction to overloads than the power supply unit, restricting residual current to 1.3-1.8 times IN.
This circuit-breaker supports capacitive loads up to 20,000 µF, allowing for inrush current without tripping. It provides clear signaling via a multi-color LED and an integrated status output. The device has a design width of 12.5 mm and is equipped with screw connections for easy wiring. It can be snapped onto NS 35 DIN rails using a modular approach.
Key properties include selective load protection with an electronic shutdown characteristic curve, active current limitation, and a manual on/off slide switch. It also features an electronic reset input option and an integrated fail-safe element adapted to the nominal current. Wiring tasks can be simplified using power rails and plug-in bridges.
24 VDC.
DIN Rail.
0.5 A (500 mA).
1 pole.
Solid state.
From 1.1 x IN.
Up to 20,000 µF.