Rockwell Automation Publication 750-UM006C-EN-P - March 2022
25
Prepare for Installation
Chapter 2
The mechanical brake circuit breaker and the control power circuit breaker are
located under the auxiliary circuit breaker door and are provided power by
Receptacles CP (24V DC auxiliary power), CPBR (24V DC brake option B2
and B3), and L123 (source brake option SB). The brake circuit breaker will
vary in design and operation depending on if it is a 24V DC mechanical brake
or 400/480V source mechanical brake.
A visual inspection can verify that the breakers are individually opened or
closed. For information on how to open the auxiliary circuit breaker door and
more details about the circuit breaker reset procedures, see
Circuit Breaker Switch on page 177
and
Open Auxiliary Circuit Breaker Door
.
1. 400/480V AC rotary power for main circuit breaker (140G-G6C3-C30-AJ).
2. 24V DC mechanical brake circuit breaker (1489-M2D040) is shown on the enclosure.
The 400/480V AC source mechanical brake circuit breaker (140M-C2E-B25/140MT-C3E-B25) is shown on the left.
3. 24V DC control power circuit breaker (1489-M2D2040).
Branch Circuit Protection Requirements for Three-Phase Power
Media
The ArmorConnect® power media cables are rated per UL Type TC 600V
90 °C (194 °F) Dry 75 °C (167 °F) Wet, Exposed Run (ER), or MTW 600V
90 °C (194 °F) or STOOW 105 °C (221 °F) 600V - Canadian Standards
Association (CSA) STOOW 600V FT2. For additional information regarding
ArmorConnect power media see ArmorConnect Power and Control Media
Selection Guide, publication
For rated ArmorConnect motor cable assemblies:
ATTENTION:
Do not cycle 400/480V AC power more frequently than one
cycle every 1 minute. Failure to comply will result in serious equipment
damage.
