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Ⅰ. Scope of Application
C65 circuit breaker accessories (MN under-voltage tripper, MV over-voltage tripper,MV+MN over-/under-voltage tripper, SD alarm contact, OF auxiliary contact) , specially designed as auxiliary functional components to mate with C65 series MCB, are widely used to control the on-off of circuit breaker, break power distribution network and detect signal of circuit breaker, by monitoring over-voltage, under-voltage, over-/under-voltage of power supply. It can mate with C65N, N81 series circuit breaker.
Ⅱ. Types and Specifications
Ⅲ. Outline and Installation Dimension
|
Accessories |
Type |
Rated voltage Un |
Tripping voltage |
Function |
|
Over-voltage tripper |
MV |
230V |
Over-voltage：Uvo=270V±5% |
When power voltage increases to 275V±5%, breaker trips to protect。 |
|
Under-voltage tripper |
MN |
230V |
Under-voltage: Uoe=170V±5% |
When power voltage decreases to 170V±5%, breaker trips to protect。 |
|
Over-/under- voltage tripper |
MV+MN |
230V |
Over-voltage: Uvo=270V±5% |
When 220V power voltage up to 275V±5% or down to170V±5%, , breaker trips to protect |
|
Alarm contact |
SD |
115/230/400V |
1、3A |
Alarming when MCB breaking for line failure |
|
Auxiliary contact |
OF |
115/230/400V |
1、3A |
Sending auxiliary signal to control auxiliary circuit |
|
Accessories |
Rated insulation voltage Ui |
Rated control power voltage Us |
Tripping power consumption （W/VA |
Pull-in voltage |
|
|
MX+OF shunt release+ auxiliary contact |
415V |
AC/DC： 220～380V；110～220V |
240 |
（0.7～1.1）Us |
|
|
AC/DC：24～48V |
120 |
||||
|
MX+OF shunt release + auxiliary contact |
Active |
415V |
AC/DC： 220～380V；110～220V |
240 |
（0.7～1.1）Us |
|
AC/DC：24～48V |
120 |
||||
|
Passive |
415V |
AC/DC： 220～380V；110～220V |
240 |
（0.7～1.1）Us |
|
|
AC/DC：24～48V |
120 |
||||
|
MX shunt release |
415V |
AC/DC： 220～380V；110～220V |
240 |
（0.7～1.1）Us |
|
|
AC/DC：24～48V |
120 |
||||
|
Accessories |
Rated current（A） |
Contacts of each set |
||
|
AC：380V |
AC：220V |
DC：110V |
||
|
Auxiliary contact OF |
3 |
6 |
1 |
1NO,1NC |
|
Alarm contact SD |
3 |
6 |
1 |
1NO,1NC |
Ⅳ. Order Notice
Please note the following points when ordering:
Product type and name: such as MV over-voltage tripper
Matching product: mating with CHINT NB1 circuit breaker
Quantity: 3680pcs
Ordering Example :for MN under-voltage tripper, C65 circuit breaker accessory, 3990pcs.