alfonso1900
Member
is there any reason why i cannot use the circuit breaker that feeds the motor controller as a disconnect? the motor is a 5 Hp, 240v, single phase. The panel, starter and motor are in the same room.
Disconnecting means
- Thread starter alfonso1900
- Start date
- Status
- Location
- Massachusetts
430.102 Location.
(A) Controller. An individual disconnecting means shall
be provided for each controller and shall disconnect the
controller. The disconnecting means shall be located in
sight from the controller location.
(A) Controller. An individual disconnecting means shall
be provided for each controller and shall disconnect the
controller. The disconnecting means shall be located in
sight from the controller location.
petersonra
Senior Member
- Location
- Northern illinois
- Occupation
- Semi-retired engineer
If it meets all the requirements as a disconnect, it should be fine. It has to be lockable and in sight (has to be within 50 feet to meet the in sight requirement).
- Location
- Logan, Utah
The lockable requirement only applies when you use the Exceptions to 430.102 (A) or (B).
If the breaker is located within sight of both the motor and the controller it is not required to be lockable.
Chris
petersonra
Senior Member
- Location
- Northern illinois
- Occupation
- Semi-retired engineer
Doesn't OSHA require some kind of lockable disconnect as part of the LOTO procedure.
- Location
- Logan, Utah
NFPA 70E 120.2(E)(1) requires energy isolation devices to be capable of accepting a lockout device.
But that requirement is not in the NEC.
Chris
NFPA70E:120.2(E)(1) is repeated in OSHA 1910.303(f)(4) that it must accept a lock.
- Status