Cooper Bussmann IF677 dimensions Installation & Maintenance Information, Application

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

WARNING

To provide protection against fire or shock hazard, the

electrical power must be OFF before and during instal- lation 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 7/16 inch mounting holes.

Figure 1 - Dimensions

2.Securely fasten enclosure to the mounting surface then attach into conduit system.

CAUTION

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.

3.Remove the six cover bolts then lift cover off and carefully set it aside to prevent damage to the ground joint.

CAUTION

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.