ABB Electrical S63-C40 Miniature Circuit Breaker

ABB Electrical S63-C40 Miniature Circuit Breaker

Basic Parameters

Rated current: C40 means its rated current is 40A.

Rated voltage: for AC 50/60Hz rated voltage 230/400V line.

Size and weight: dimensions of about 2.0 inches × 3.0 inches × 3.0 inches, weighing 0 pounds 1.8 ounces.

Functional Features

Overload protection: delayed thermal release mechanism, when the current in the circuit for a long time more than the rated current, the thermal release in the bimetal will be bent by heat, triggering the release action, cut off the circuit, thus protecting the line and equipment from overload damage.

Short-circuit protection: Equipped with electromagnetic release mechanism, once a short-circuit fault occurs in the circuit, the short-circuit current will make the electromagnetic release device instantly generate a strong suction, drive the release mechanism action, quickly cut off the circuit, effectively preventing the short-circuit current on the line and the equipment caused serious damage.

Application field

Industrial field: it can be used for the protection of various small motors, lighting circuits and control circuits in industrial plants to ensure the stable operation of production equipment.

Commercial places: such as shopping malls, office buildings and other places of lighting, socket and other power distribution line protection, to ensure the safety and reliability of commercial power.

Civil housing: applicable to the distribution box in the family, overload and short-circuit protection for each branch circuit, to protect household appliances and personal safety.

Service and Maintenance

• Only qualified personnel should carry out repairs. 

• The agreed warranty applies. 

• Before carrying out any cleaning or maintenance operations, disconnect the equipment from the electrical supply. 

• Clean the display and surrounding front cover with a soft cloth and mild detergent. 

• Replacing the battery incorrectly may result in explosion. Only use batteries recommended by the supplier. During the warranty period, the battery needs to be replaced by an authorized ABB service center

FEATURE

• Low-impedance busbar protection 

• Stub and T-zone protection 

• High functional reliability due to two independent measurement criteria: 

- stabilized differential current algorithm 

- directional current comparison algorithm 

• Phase-by-phase measurement 

• Reduced CT performance requirements 

• High through-fault stability even in case of  CT saturation 

• Full solid-state busbar replica 

• No switching of CT circuits 

• Only one hardware version for  

- 1 and 5 A rated currents 

- all auxiliary supply voltages between  48 V DC and 250 V DC 

- nominal frequencies of 50, 60 and  16.7 Hz 

• Short tripping times independent of the  plant’s size or configuration 

• Centralized layout: Installation of hardware  in one or several cubicles 

• Distributed layout: Bay units distributed  and, in the case of location close to the  feeders, with short connections to CTs, isolators, circuit breakers, etc. 

• Connections between bay units and central  unit by fiber-optic cables 

- maximum permissible length 1200 m  

- for distributed and centralized layout 

• fiber-optic connections mean interference proof data transfer even close to HV power  cables 

• Replacement of existing busbar protection  schemes can be accomplished without restrictions (centralized layout) in the case of  substation extensions e.g. by a mixture of  centralized and distributed layout 

• Easily extensible