Technical FAQs

Ask a Question

Parts needed to upgrade a Masterpact NW breaker from a Micrologic 3.0 or 5.0 to the 3.0A 5.0P 6.0P 5.0H or 6.0H trip units

Inquiry:
What parts are needed to upgrade a Masterpact NW breaker from a standard trip unit to a Micrologic 3.0A 5.0P 6.0P 5.0H or 6.0H?

Product Line:
Masterpact NW

Resolution:
Both fixed and drawout breakers need connector S33101 and the trip unit:
3.0A S141A
5.0A S143A
6.0A S144A
5.0P S163A
6.0P S164A
5.0H S173A
6.0H S174A

A neutral CT is required if the breaker is applied on a 4-wire system and new trip unit is a 6.0A, 6.0P, or 6.0H.
A neutral CT is also required if the breaker is applied on a 4-wire system and the new trip unit is a 5.0P being used for ground-fault alarm.
See attached table for catalog numbers.

Fixed circuit breakers also need the following parts in addition to onnector S33101:
External Voltage Sensing S47506 (P and H trip units only, if Voltage sensing is required)
Secondary Disconnects (3) S47075 and (1) S47074
BCM S47405 (if modbus is required)

Drawout circuit breakers also need the following parts in addition to connector S33101:
External Voltage Sensing S48533 (P and H trip units only, if Voltage sensing is required)
Secondary Disconnects (3) S47850 and (1) S47849
BCM S48384 (if modbus is required)
 
Was this helpful?
What can we do to improve the information ?