8501KF12V20 SQUARE D, 8501KF12V20 Datasheet - Page 9

• Manufacturer Part Number: 8501KF12V20
• Description: RELAY 240VAC 10AMP TYPE K +OPTIONS
• Manufacturer: SQUARE D

Specifications of 8501KF12V20

• Relay Type: Power
• Coil Voltage Vac Nom: 120V
• Contact Current Max: 10A
• Contact Voltage Ac Nom: 240V
• Contact Voltage Dc Nom: 28V
• Contact Configuration: DPDT
• Coil Type: AC
• Nom Operating Power: 3.6VA
• Rohs Compliant: Yes

© 2003-2008 Schneider Electric
All Rights Reserved
8501 KA alternating relays are designed to minimize pump and
motor wear by equalizing run time between parallel
components in a multi-pump system. These relays are
controlled by an external control switch. This switch may be any
type of contact closure; for example, the contacts of a timing
relay or the closure of a float switch. The 8501 KA relays also
have a toggle switch that allows the operator to lock one side of
the duplex system, preventing alternation.
Alternating Functions
•
•
•
•
Diagram
A, C & D
12 A Resistive Rating
SPDT or DPDT
Toggle switch for load control
LED Load Indicators
All
B
The cross wired option allows extra system load capacity through simultaneous operation of both motors when needed (LA and LB energize simultaneously when both S1 and
S2 are closed - relay contacts are not isolated).
Input voltage must be applied at all times for proper alternation. Use of a solid state control switch for S1 or S2 may not initiate alternation correctly. S1 or S2 voltage must be
from the same supply as the unit’s input voltage (see wiring diagrams). Loss of input voltage resets the unit; LA becomes the lead load for the next operation.
Toggle Switch Position
Alternate
Alternate
Lock 1
Lock 2
Lock 1
Lock 2
•
•
•
•
Horsepower Rated
AC and DC Control
UL Listed w/ SquareD Socket
Rohs Compliant
Detail
S1 = Control Switch 1
Closing S1 alternates the loads between LA and LB. S2 will only control LA.
LA is OFF and LB is ON. S1 is not used in this mode.
LA is ON and LB is OFF. S1 is not used in this mode.
Closing S1 alternates the loads between LA and LB.
Type KA – Alternating Relay
Contact Ratings
Relay Availability
AC Voltage = 50/60 Hz
S – Stocked. Stocked items do not require a minimum quantitiy and have a lead time of 2 weeks.
8501KA•••
Voltage Code
S1 will control LA and S2 will control LB.
S1 will control LB and S2 will control LA.
Type
8501KA•••
8501KA•••
8501KA•••
8501KA•••
All other part numbers require a minimum order quantity of 100 and have a lead time of
18 weeks.
Type
S2 = Control Switch 2
AC Volts
General Information and Specifications
120
240
V36
12
Resistive
Amperes
Voltage
AC & DC
AC & DC
AC & DC
AC & DC
Type KA – Alternating Relays
Input
12
12
AC & DC Voltage
AC
Arrangement
LA = Load 1
DPDT (N.C.)
DPDT (N.O.)
HP
1/3
1/2
Contact
V14
24
S
S
S
S
SPDT
DPDT
Pilot Duty
B300
B300
Duplex Pumping
LED, Toggle,
LED, Toggle
LED, Toggle
LED, Toggle
Options
120
V20
S
S
S
S
DC Volts
LB = Load 2
30
08/2008
AC Voltage
DC
8501KA112A
8501KA112
8501KA81
8501KA82
Resistive
Amperes
240
V24
Type
12
9