Промышленное автоматическое устройство безопасности Sie-mens 5SY5 DC Миниатюрный автоматический выключатель 5SY5106-7CC

product name

Sie-mens circuit breaker

product application

Electrical system protection

product type

5SY5 DC miniature circuit breaker

product model

5SY5106-7CC 5SY5206-6CC 5SY5208-6

Level of segmentation

S:66kA N:55kA

Control voltage

AC/DC220V AC/DC110V DC24V

Rated current In(A)

0.5 1 1.6 10 23 4 50 6 8 13 16

release

ETU35WT [LSI with LCD]
ETU37WT [LSIG with LCD]
ETU45WT [LSIN with LCD]
ETU47WT [LSING with LCD]
NA [disconnector]

secondary contact

none/1 normally open contact + 1 normally closed contact

life cycle

Delivery Release (PM300)

parts of a circuit breaker

Frame or external casing
Operating mechanism
Electrical contacts
Arc extinguisher
Trip unit

Working of Circuit Breaker

Circuit breakers are made up of pairs of stationary and moving metal contacts, in addition to an operating coil. Under normal
cases, when the circuit is closed, these contacts touch each other, allowing an electric current to flow.

For example, these moving contacts are held together due to mechanical pressure exerted by some other mechanism such as a spring
or compressed air. Beneath a closed circuit breaker, current-carrying contacts known as electrodes engage each other due to the
pressure of a spring.

Switching and maintenance of the system are done either by opening or closing the circuit breaker arms. These devices are opened
by applying pressure to the trigger. When there is a fault in the current flowing through any part of the system, the breaker’s
trip coil is energized, pulling one away from the other, thereby opening the circuit.

Types of Circuit Breaker

AC circuit breaker
High voltage circuit breaker
Low voltage circuit breaker
Miniature circuit breaker
Molded case circuit breaker
DC circuit breaker
HDVC circuit breaker
Oil circuit breaker
Bulk oil circuit breaker
Minimum oil circuit breaker
Air circuit breaker
Air blast circuit breaker
SF6 circuit breaker
Vacuum circuit breaker
Single pole circuit breaker
Double pole circuit breaker