Instruction Leaflet for Installation of Q-Frame
Motor Circuit Protector, Type MCP (with Electronic Trip Device)
WARNING
CONTACT WITH ENERGIZED EQUIPMENT CAN
RESULT IN DEATH, SEVERE PERSONAL INJURY, OR
SUBSTANTIAL PROPERTY DAMAGE. DO NOT
TO INSTALL OR PERFORM
MAINTENANCE ON EQUIPMENT WHILE IT
IS
ENERGIZED. ALWAYS VERIFY THAT NO VOLTAGE
IS
PRESENT BEFORE PROCEEDING WITH THE TASK,
AND ALWAYS FOLLOW GENERALLY ACCEPTED
SAFETY PROCEDURES.
ALLEN-BRADLEY
IS NOT LIABLE FOR THE
MISAPPLICATION OR MISINSTALLATION OF ITS
PRODUCTS.
The user is cautioned to observe all recommendations,
warnings, and cautions relating to the safety of personnel
and equipment as well as all general and local health and
safety laws, codes, and procedures.
The recommendations and information contained herein
are based on Allen-Bradley experience and judgement,
but should not be considered to be all-inclusive or cover-
ing every application or circumstance which may arise. If
any questions arise, contact Allen-Bradley for further
information or instructions.
1.
INTRODUCTION
to comply with the applicable requirements of Underwrit-
ers Laboratories, Inc. Standard UL489 and the Interna-
tional Electrotechnical Commission Recommendations
The MCP is a UL-recognized component. It is
used primarily to provide short-circuit protection
as part of a combination controller where other circuit
protective functions are performed by other devices
within the controller. Since the Q-frame MCP is a non-
sealed device, it is marked LINE and LOAD and is not
N
O
. IEC 947-2.
suitable for reverse feed applications.
I
Fig. 1-1 Q-frame Type MCP Motor Circuit
Protector
2.
INSTALLATION
The installation procedure consists of inspecting the
MCP and, as applicable, installing accessories, and ter-
minals; mounting the MCP; connecting the line and load
conductors; torquing terminals; and attaching terminal
shields. The MCP, accessories, mounting hardware, and
unmounted terminals may be supplied in separate pack-
ages.
To install the MCP, perform the following steps.
Note: Internal accessory installation in any type of
circuit breaker should be done before the circuit
breaker is mounted and connected. Refer to
40752-081(1)
Effective 2/03
Bul. 140M
in 3-pole frames only. The MCP is designed
of 600A. . The MCP is available as Type MCP
Motor Circuit Protector (MCP) (Fig. 1-1) has a rating
The Q-Frame instantaneous (magnetic-only)
General Information
This instruction leaflet (IL) gives procedures for installa-
tion, operation, and field testing of Q-frame MCPs.
For this publication, the term motor circuit protection
(MCP) shall also include instantaneous (magnetic)
only circuit interrupters.
