KB Electronics KBRG-212D - Manual (Page 13)

13
6 ELECTRICAL CONNECTIONS
WARNING! READ SAFETY WARNING, ON PAGE 5, BEFORE USING THIS
CONTROL.
CAUTION! To avoid erratic operation, do not bundle AC line and motor connections
with potentiometer connections, voltage following connections, Start/Stop switch
connections, inhibit connections, or any other signal connections. Use shielded
cables on all signal connections over 12” (30 cm) long. Shield should be earth
grounded on the control
side only .
Connect control in accordance with National Electric Code requirements and other local
codes that apply. The KBRG-212D does not contain AC line or armature fusing. It is
recommended that a 20 Amp fuse or circuit breaker be installed on each AC line
conductor not at ground potential. Connect control, in accordance with illustrations in this
section. A separate AC line switch or contactor must be connected as a disconnect switch
so that contacts open each ungrounded conductor. In addition, Table 6, details the
connection, wiring and torque information.
6.1 AC Line Connection – Connect the AC line to L1 and L2 terminals of TB1 as
shown in Figure 3, on page 14.
Note: There are no AC Line or Armature fuses supplied with this control. See Section
6.3, on page 14.
6.2 Motor Armature – Connect motor armature to terminal Ml and M2. (Be sure
jumper J3 is set to match motor voltage. See Figure 3, on page 14 and Section
7.2, on page 20.
TABLE 6 – TERMINAL BLOCK WIRING INFORMATION
Supply Wire Gauge
(AWG – Copper) Terminal Block
Designation
Connection
Designation
Minimum Maximum
Maximum
Tightening
Torque
(lbs- in)
TB1
Power / Control
Connections
22 14 3.5
TB2 L1, L2, M1, M2 18 12 3.5
TB3 F+, F- 22 14 3.5