Eb Miniature Circuit Breaker

Modular DIN Rail-Miniature Circuit Breaker

1.1 Function

Protection of circuits against short-circuit currents,

Protection of circuits against overload currents,

Switch, isolation.

1.2 Selection

Technical data of the network at the point considered:

The earthing systems (TNS, TNC),

Short-circuit current at the circuit-breaker installation point,

which must always be less than the breaking capacity of

this device, network normal voltage.

Tripping curves:

B curve (3-5In)

Protection for people and big length cables in TN and IT systems.

C curve (5-10In)

Protection for resistive and inductive loads with low inrush current.

D curve(10-20In)

Protection for circuits which supply loads with high inrush

current at the circuit closing

(LV/LV transformers, breakdown lamps).