GJR5252300R3101 07AC91H ABB distributed control system industrial DCS module card

Description

Packaging details: if you need an urgent delivery order, please feel free to contact us, and we will do our best to meet your needs.

Price problem: if you find that other suppliers offer cheaper prices for the same product, we are also willing to provide you with reference prices and give you further discounts.

The emergency power supply is usually provided to take over
from the normal power supply in two instances:
– to power health and safety services (e.g. hospital installations);
– to power parts of installations which are essential for requirements other than safety (e.g. continuous cycle industrial
plants).
The range of accessories for SACE Emax circuit-breakers includes solutions for a wide variety of different plant engineering
requirements.
See the specific regulations regarding protections against
overcurrents, direct and indirect contacts, and provisions
to improve the reliability and safety of emergency circuits.
Switching from the normal to the emergency power supply can
either be carried out manually (locally or by remote control) or
automatically.
To this end, the circuit-breakers used for switching must be fitted with the accessories required to allow electric remote control and provide the electrical and mechanical interlocks required
by the switching logic.
These include:
– the shunt opening release
– the shunt closing release
– the motor operator
– the auxiliary contacts.
Switching can be automated by means of a special electronically-controlled relay circuit, installed by the customer (diagrams
provided by ABB SACE).
Mechanical interlocks between two or three circuit-breakers are
made by using cables which can be used both for circuit-breakers side by side or superimposed.