Technical information

1.2.3 Motor Starter “Type E” and “Type F”

The motor starter Type “E” consists of:

•Self protected combination motor starter 140M with 140-M-CTE

The motor starter Type “F” consists of:

•Motor protector 140M with 140-M-CTE

•Contactor

In the IEC area the motor protectors are considered, for all practical purposes, as

automatic switches which are able to protect against over-currents as well as

against short-circuits.

On the contrary in North America there is a clear difference between “Circuit

Breaker” UL 489 automatic switches and “Combination Motor Controller” UL508

motor protectors.

Within the standard UL 508 there are two different certification procedures of the

motor protectors such as:

• “manual motor controller”: It has the function to “disconnect” (load

sectioning), “motor control” (load switching), “motor overload” (protection

against over-loads) and it does not perform the magnetic protection.

• “manual self-protected combination motor controller (Type E)”: It performs

the same functions as the manual motor controller and it also guarantees

“branch circuit protection” (protection against short-circuit).

BRANCH CIRCUIT

480V/277V, 60 Hz, 3-Phase Type E480V/277V, 60 Hz, 3-Phase Type F