Customer Connections for AC
Power to Form 6-LS Control
Input power (120 VAC) to the Form 6-LS control is con-
nected to Terminal TB8. B phase (H) is connected to TB8-
3. B phase (N) is connected to TB8-4. Y phase (H) is con-
nected to TB8-9. Y phase (N) is connected to TB8-10.
Refer to Figure 14.
Input power is required:
• To power the control
• To provide voltage and power metering
• To power the thermostatically controlled heater
• For the convenience outlet accessory
Power Supply / Battery Charger Board
Incoming AC power is routed to the Power Supply /
Battery Charger Board. While this board is designed to
accept either 120 VAC or 240 VAC through a selector
switch located directly on the board (Figure 13), the Form
6-LS control must be set for 120 VAC incoming power.
The battery charger includes a temperature-compensated
design to optimally charge the control battery. The power
supply / battery charger board also includes an auxiliary
power supply for connection to communication equipment
(radios, modems, etc.). The auxiliary power supply is rated
28 VDC, 65 Watts peak. A separate 28 VDC to 13.8 VDC
power supply accessory is available for communication
equipment rated for 13.8 VDC. Refer to
Radio Mounting
Accessory
in the
Accessories
section of this manual for
additional information regarding the radio power supply.
Some additional features are as follows:
• Positive LED indicator for power supply presence
• Self-protective fuse (5 amp, 250 VAC)
• 28 VDC whetting voltage for I/O contact inputs
Terminal Blocks
Two terminal blocks are used for connection to the Form
6-LS control. Both terminal blocks are fit for a #6 screw
which can allow a maximum ring size for a #10 AWG for
metering.
Terminal Block TB7 provides power to the Form 6-LS
control and is directly connected to the power supply circuit
board. Terminal Block TB8 is used to connect sensing
transformer voltage. The wiring of the transformers should
follow the application illustrations per Figure 15 or 16.
Loop Scheme
The Form 6-LS control is equipped with a transfer relay to
provide power to the control and power to the recloser if
either voltage is present on the source or load side of the
recloser. The relay transfers the control power source from
Source I of the control to Source II (load side) upon loss of
source side voltage. This circuitry is rated for 120 VAC
operation only, and is connected to B and Y phases on
TB8 as Source I and Source II respectively. Transfer relay
output contacts connect to TB7. Refer to Figure 14.
Power Connections
The transformer required for power is 1kVA minimum.
Transfer relay connections are shown in Figure 14.
Form 6-LS Pole Mount Recloser Control Installation and Operation Instructions
22
IMPORTANT:
Prior to energizing the control, the selector
switch must be set as follows:
• For 120 VAC incoming power, the selector switch
must be set to the 115V position.
Figure 13.
Power Supply / Battery Charger Board.
AC
Power
Fuse
Power Supply Board
Selector Switch
CAUTION:
Equipment damage Form 6-LS (Loop
Scheme). Do not connect 240 VAC to B or Y phases on
terminal blocks TB7 or TB8. 240 Volts will damage
internal components and cause control misoperation.
T314.0
IMPORTANT:
Delta connections are
not
used on the
Form 6-LS control.
CAUTION:
Equipment misoperation. Verify that
the 120/240 VAC selector switch is correctly set
for incoming voltage. Failure to comply may cause
misoperation (unintentional operation) of the control
and/or equipment damage resulting in personal injury.
T278.0
CAUTION:
Equipment damage. Do not drill
connection holes into the top of the cabinet.
Connection holes in the top of the cabinet will allow
moisture to seep into the control and damage the
components or cause control misoperation. Failure to
comply will void the control’s factory warranty.
T249.0
DANGER:
Hazardous voltage. Do not connect
potential transformer low-voltage secondaries to
the control through cables or other wiring until the unit is
installed in the field. Transformer high-voltage primary
windings will become live when 120V AC is applied to
the control from an alternate source if the transformer
secondary is connected. Failure to comply may result in
severe personal injury or death.
T371.1
WARNING:
Hazardous voltage. Before applying
power to the control, confirm that male pins of
the input power receptacle are electrically insulated to
prevent unintentional contact with 120V AC voltage.
Failure to do so may result in severe personal injury or
death.
T372.0