Omron BU3002SW, BU1002SW specifications Nfpa

2.Installation and connection

●Procedure for connection to BU1002SW output terminal block

Caution

When in use, make sure the output terminal block cover is attached. Do not turn ON the power switch when it is detached.

●Voltage is applied to the output terminal block when the power switch is ON, which can result in electric shock.

When connecting a device to the output terminal block, make sure to include an emergency stop switch (ESD) between them.

●In the event of an accident, the power supply to the device can be stopped by pressing the emergency stop switch.

●A disconnect switch shall be provided by others for ac output terminal block circuit.

●To reduce the risk of fire, connect only to a circuit provided with branch circuit overcurrent protection for 15 amperes rating in accordance with the National Electric Code, ANSI/

NFPA 70.

emergency stop switch (ESD)

UPS Load

ESD

(1)Remove the terminal block cover on the lower right side of the unit’s rear panel.

(2)Connect the units that need to be backed up. Two types of connec- tions can be made.

1)To turn ON/OFF at the same timing as that of output receptacle

B:

L1B terminal: Connect the line

L2B terminal: Connect the neutral line

2)To turn ON/OFF at the same timing as that of output receptacle

C:

L1C terminal: Connect the line

L2C terminal: Connect the neutral line

<BU1002SW>

GL2C L2B L1C L1B

C B

Run the wires to be connected through the hole in the included terminal block cover (with cable clamp and cable guard tube). (See Figure 1.)

If you have trouble running the wire through the hole, loosen the cable clamp dial by turning it counter-clockwise.

Connect the ground wire to the G terminal.

Use a flat head screwdriver to loosen the terminal block screws, insert the wire, and then retighten the screws. (See Figure 2.) Refer to Table 1 for wire sizes.

Figure 1 Figure 2

Table 1

Connectable wire size	1.0 to 2.5 mm2
Amount of stripped wire	5.5mm
Tightening torque	0.9Nm(8 lb-in)
Recommended cable size	2mm2 (AWG14)

Figure 3

(3)Insert the tab on the right side of the terminal block cover (with cable clamp) into the unit’s body, and fasten the previously removed screws to the two loca- tions on the left side of the cover.

Tighten the cable clamp dial to stabilize the wire. (See Figure 2.)

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