• Eaton’s range of 6kA high performance Miniature Circuit Breakers (MCBs) are manufactured to IEC/EN 60898, meeting the latest UK, European and International standards, with ratings from 2A to 63A as standard.
• DIN rail mountable and suitable for use with both pin and comb type busbar systems
• Eaton’s MCBs are suitable for use on 230/240 V, AC systems and are calibrated for use at 40°C.
• These devices suite with the other modular devices including RCBOs, RCCBs and Isolators, for use within Eaton’s consumer units and a wide range of other applications. 
• The Eaton 6kA MCBs are fitted with box clamp terminals suitable for use with cables up to 25mm2.
• Available with both B and C characteristic curves as standard. Type B MCBs are most commonly used in domestic applications, however the use of type C devices may be desirable e.g. on lighting circuits where high switching surges are involved. Type D devices are not commonly used in other than industrial applications.

Technical Details

• Type B: Suitable for general, domestic and commercial installations having little or no switching surges
• Type C: Suitable for general use in commercial or industrial applications where the greater use of fluorescent lighting and small motors can produce switching surges, which may cause nuisance tripping of type B breakers.
• Type D: Suitable for General Industrial applications where there are a lot of high inrush switching surges associated with equipment such as transformers, large motors, welding and X ray equipment.

Technical Data

Product standard    IEC/EN 60898
No of poles    1P
     
    
Mechanical specification
Device width    17.7mm
Terminal type    Box clamp
Terminal capacity    1-25mm2
Terminal Screw    M5 combination
Terminal torque recommended    2.0Nm - max 2.4Nm
Mounting    DIN rail
Degree of protection    IP 20
Positive contact indication    Yes (Toggle position)
     
    
Electrical Specification
Rated voltage    230/240V AC
Current ratings    2, 4, 6, 10, 13, 16, 20, 25, 32, 40, 50, 63 A
Rated impulse and withstand voltage    4kV (1.2/50 sec)µ sec
Rated short circuit capacity    6kV
Selectivity class    3 to IEC/EN 60898
     
Tripping characteristic
Instantaneous Tripping current 1 mt    Type B: 3ln Type C: 5ln Conventional non tripping current    l nt = 1.13ln
Conventional tripping current    lt = 1.45ln
Ref/calibration temp    40°C
Number of operating cycles elec    >4000
Number of operating cycles mech    >20000