Specifications

Fixed circuit breaker
All M-PACT fixed pattern air circuit breakers
incorporate a stored energy mechanism. The spring
can be charged either manually or electrically via a
motor operator that is automatically activated after
the closing operation.
IP43 front panel and door escutcheon seals are
standard features with IP20 protected secondary
isolating contacts. For enhanced protection, an
optional IP54 door panel is also available.
• Trip-free operating mechanism
• Positive ’ON/OFF’ contact indication
• Mechanical/electrical anti-pumping device
• Charging spring status indication (optional)
• Ergonomic manual spring charging handle
• Field-mountable range of accessories
• Auxiliary switches 5 NO and 3 NC, 10A 250V
(standard)
• Mechanical Trip Alarm switch (1NO) (optional)
• Padlockable push-button cover
• Mechanical cable interlocking (optional)
• Termination: rear, horizontal or front access
(optional)
• Electrical clearances according to IEC 947-2
• Front access of secondary terminals for simple
connection
Installation
Fixed pattern M-PACT can be fastened into any sui-
table switchboard or cubicle arrangement using four
M8 bolts.
Clearance is only required above the unit for the
removal and inspection of the arc chutes (see
dimensional drawings for mounting details and
recommended clearance distances).
An earthing point is provided on either side of the
circuit breaker.
Power Supply
All stated short circuit ratings are certified with
incoming supply connection made to either upper or
lower terminals.
1. Motorised spring charging unit (optional)
2. M-PRO Protection Relay (optional)
3. Secondary contacts
4. Shunt trip (optional)
5. Closing coil (optional)
6. Undervoltage release (optional)
7. Manual charging handle
8. ON/OFF push-buttons*
9. Push-button padlockable covers*
10.Positive contact indication
11.Charging spring status indication
12.Mounting plate
A.4
Technical overview
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GE Power Controls
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