AEG Miniature Circuit Breaker ELFA-E81S-D3 240/415V Allis-Chalmers

Used in DIN rail panel assemblies and machine control enclosures, the AEG Elfa E81S-D3 is a 1-pole miniature circuit breaker rated at 3 amps with a D-curve trip characteristic. The nameplate confirms a voltage rating of 240/415V AC, consistent with the E81S series standard specification for single-pole IEC-type breakers. The D-curve designation indicates a high instantaneous trip threshold, typically 10 to 20 times the rated current, making this unit appropriate for loads exhibiting high inrush at startup such as transformers, solenoids, and certain motor applications.

The single-pole body design follows standard IEC 60898 form factor, with a 35mm DIN rail mounting clip integrated into the base for tool-free installation and removal. Screw-type terminal connections are accessible at the top and bottom of the housing. The toggle handle provides manual on/off switching in addition to automatic overcurrent protection.

The E81S series was produced by AEG under its Elfa product line for European and international industrial markets. Part number ELFA-E81S-D3 reflects the series (E81S), trip curve (D), and rated current (3A). The unit carries VDE certification as indicated by the marking visible on the nameplate label. Physical dimensions conform to the standard narrow single-module DIN rail MCB profile.

Stock # 0226-729