Baldor mn722 Three Phase Input Power Connections, EL suffix, Baldor Series 22HXXX-EL Control

Three Phase Input Power Connections

AC power and motor connections are different for controls that have a model number suffix of “EL” and “EK”. Be sure to use the correct procedure for your control.

Note: “EK” Controls are input phase sensitive. Be sure all connections are correct.

“EL” suffix

The AC power and motor connections are shown in Figure 3-3. Overloads are not required. The 22H control has an electronic I2t motor overload protection. If motor overloads are desired, they should be sized according to the manufacturers specifications and installed between the motor and the T1, T2 and T3 terminals of the control.

1.Connect the incoming AC power wires from the protection devices to terminals A1, B1 and C1 at the 3% line reactor.

2.Connect A2, B2 and C2 3% line reactor terminals to the L1, L2 and L3 power input terminals of the control.

3.* Connect earth ground to the “ ” of the control. Be sure to comply with local codes.

*Grounding by using conduit or panel connection is not adequate. A separate conductor of the proper size must be used as a ground conductor.

Figure 3-3 “EL” Control 3 Phase AC Power and Motor Connections

	L1	L2	L3
			Earth
Note 1	* Circuit
	Breaker
Note 2
	A1	B1	C1
Note 3	Line
	Reactor
	A2	B2	C2
Note 2
	L1	L2	L3

Baldor

Series 22HXXX-EL

Control

L1 L2 L3

Alternate *

FuseNote 1

Connection

A1 B1 C1

*Optional components not provided with 22H Control.

Notes:

1.See “Protective Devices” described previously in this section.

2.Shield wires inside a metal conduit.

3.3% Line Reactor is required at input.

See Recommended Tightening Torques in Section 7.

3-10 Receiving & Installation MN722