Eaton EMN Serie Manual De Instrucciones

Motor Starter
EMN Series Manual Line Starters and Enclosures
Installation & Maintenance Information
APPLICATION
EMN Series Manual Line Starters and Enclosures are used to provide
motor starting protection and manual across-the-line starting and
stopping of single and poly-phase AC motors.
EMN Series Manual Line Starters and Enclosures are suitable for
use in Class I, Groups C, D; Class II, Groups E, F, G and Class III
hazardous (classified) locations, as defined by the National Electric
Code® as well as in damp, wet or corrosive locations.
EMN Series Manual Line Starters and Enclosures should be installed,
inspected, maintained, and operated by qualified and competent
personnel.
INSTALLATION
!
To provide protection against fire and prevent explosions and
shock hazard, electrical power must be OFF before and during
installation and maintenance.
1. Select a mounting location that will provide suitable strength and
rigidity for supporting all contained wiring and control devices.
Figure 1 shows the mounting dimensions of EMN Series
enclosures. Drill two 0.44 inch ( 7/16" ) mounting holes.
Figure 1. Dimensions
2. Securely fasten enclosure to the mounting surface then attach
into conduit system.
!
Hazardous location information specifying class and group listing of
each device is marked on the nameplate of each enclosure. Also
note that:
• No conduit openings are to be added in the field.
• All unused conduit openings must be plugged and these
plugs must be a minimum of 1/8 in. thick and have a minimum
of five threads engaged.
• All conduits entering and leaving the enclosure must be sealed
with explosion-proof seals within 18 in. of the enclosure.
National Electrical Code is a registered Trademark of the National Fire Protection Association.
®
IF 677 • 07/21
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE
WARNING
CAUTION
Copyright © 2021, Eaton's Crouse-Hinds Division
3. Remove the six cover bolts then lift cover off and carefully set it
aside to prevent damage to the ground joint.
!
Hammers or prying tools must not be allowed to damage the flat
ground-joint surfaces. Do not handle the covers roughly, or place
them on surfaces that might damage or scratch the flat ground-joint
surfaces.
4. EMN Enclosure furnished with starter: Remove starter from
enclosure then pull wires into enclosure making sure that they
are long enough to make the required connections.
Note: EMN Manual Motor Starter Enclosures ordered
complete with starter are furnished with heaters. One heater is
furnished with two-pole AC or DC starters and three heaters with
three-pole starters.
EMN Enclosure furnished without starter: Select starter from
Table 1 on page 2 (ordered separately). Install heaters on starter
(ordered separately). Refer to heater selector listings. Pull wires
into enclosure.
5. Mount starter into enclosure and make electrical connections
utilizing the wiring scheme established for the starter. Apply
power and inspect for proper operation.
6. Test for wiring correctness with continuity checks and also for
unwanted grounds with insulation resistance tester.
7 . Place starter handle in OFF position making sure that the internal
mechanism of the cover will properly engage the starter.
CAUTION
IF 677
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