KB Electronics KBDA-42 User Manual
Page 19
6.1
AC LINE INPUT CONNECTION (see Warning, on page 17) – Connect the AC line input to
Terminal Block TB1. See Electrical Ratings, Table 3, on page 10.
Application Note: If operation with a Ground-Fault Circuit-Interrupter (GFCI) is required, see
Function No. 0.04, on page 32.
Note: The rated AC line voltage of the drive must match the actual AC line input voltage. On
Models KBDA-24D, 27D, the setting of Jumper J1 must match the AC line input voltage.
AC Line Fusing –
The drive does not contain line fuses. Most electrical codes require that each
ungrounded conductor contain circuit protection. Do not fuse neutral or ground connections.
It is recommended to install a fuse (Littelfuse 326, Buss ABC, or equivalent) or a circuit breaker
(Square D QOU or equivalent) in series with each ungrounded conductor. Do not fuse motor
leads. For the recommended fuse size, see Table 3, on page 10.
Connect the drive in accordance with the National Electrical Code requirements and other local
codes that may apply to the application.
Model KBDA-24D –
Terminals “L1”, “L2” –
Designed for single-phase
AC line input only. Rated for
208/230 Volt AC line input
with Jumper J1 set to the
“230V” position (factory set-
ting) and rated for 115 Volt
AC line input with Jumper
J1 set to the “115V” posi-
tion. See Figure 10.
Note: 230 Volts AC will be
applied to the motor with
115 Volt AC line input.
Model KBDA-27D – Terminals “L1”, “L2” – Designed for single-phase AC line input only. Rated
for 208/230 Volt AC line input with Jumper J1 set to the “230V” position (factory setting) and rated
for 115 Volt AC line input with Jumper J1 set to the “115V” position. Rated for 1
1
⁄
2
HP maximum
with 115 Volt AC line input and 2 HP maximum with 208/230 Volt AC line input. See Figure 10.
Note: 230 Volts AC will be applied to the motor with 115 Volt AC line input.
Model KBDA-29 – Terminals “L1”, “L2”, “L3” – Designed for single-phase or 3-phase AC line
input. Rated for 208/230 Volt AC line input only. Rated for 2 HP maximum with single-phase AC
line input (Terminals “L1”, “L2”) and 3 HP maximum with 3-phase AC line input (Terminals “L1”,
“L2”, “L3”). See Figure 11, on page 19.
Models KBDA-45, 48 – Terminals “L1”, “L2”, “L3” – Designed for 3-phase AC line input only.
Rated for 400/460 Volt AC line input only. See Figure 11, on page 19.
18
TABLE 4 – DRIVE TERMINAL BLOCK WIRE AND TIGHTENING TORQUE SPECIFICATIONS
Terminal Block
Description
Model
Maximum Wire Size (Cu) Recommended Tightening Torque
AWG
mm
2
in-lbs
kg-cm
TB1
AC Line Input and Motor
Connections
KBDA-24D
12
3.3
7
8
KBDA-27D, 29, 45, 48
12
3.3
12
14
TB2
Run/Fault Output Relay Contacts
All
16
1.3
3.5
4
*Model KBDA-27D is rated for 11⁄2 HP maximum with 115 Volt AC line input and 2 HP
maximum with 208/230 Volt AC line input.
FIGURE 10 – MODELS KBDA- 24D, 27D*
AC LINE INPUT, MOTOR, AND GROUND CONNECTIONS
Ground
Motor
(Earth)
115, 208/230 Volt
AC Line Input
Single-Phase
Ground
(Earth)
MOTOR
U
V
TB1
W
L1
L2
AC LINE