RUMF3AB2E7 SQUARE D, RUMF3AB2E7 Datasheet - Page 10

INTERFACE RELAY, 3PDT, 48VAC, 290OHM

RUMF3AB2E7

Manufacturer Part Number
RUMF3AB2E7
Description
INTERFACE RELAY, 3PDT, 48VAC, 290OHM
Manufacturer
SQUARE D
Datasheet

Specifications of RUMF3AB2E7

Coil Voltage Vac Nom
48V
Contact Current Max
10A
Contact Voltage Ac Nom
250V
Contact Voltage Dc Max
250V
Coil Resistance
290ohm
Contact Configuration
3PDT
Average Power Consumption
3VA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
General Purpose Relays
23-10
New!
Square D
8501KA alternating relay is designed to minimize pump and motor wear by equalizing run time between parallel
components in a multi-pump system.
The relay is controlled by an external control switch. The switch may be any type of contact closure; for example the
contacts of a timing relay or the closure of a float switch. The 8501KA relay also has a toggle switch that allows the
operator to lock one side of the duplex system in the “on” position.
Table 23.38: Type KA — Alternating Relay
Table 23.39: Relay Availability
Table 23.40: Contact Ratings
Table 23.41: Alternating Functions
Wiring Diagrams and Dimensions
Approvals
8501KA81•••
8501KA82•••
8501KA112•••
8501KA112A•••
8501KA81•••
A, C & D
B
ALL
Socket = 8501NR51 or NR52
. A
. B
Socket = 8501NR51 or NR52
Voltage Code
12 amp Resistive Rating
SPDT or DPDT
Toggle switch for load control
LED Load Indicators
Diagram
Type
Type
8501KA81
8501KA82
®
Alternating Plug-In Relays
···
Alternate
Lock 1
Lock 2
Alternate
Lock 1
Lock 2
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 applied at all times for proper alternation. Use of a solid state control switch for S1 or S2 may not initiate alternation corredtly.
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.
···
AC Volts
Class
Toggle Switch Position
File
V36
120
240
12
AC & DC Voltage
E78351
NLDX
. C
. D
Input Voltage
Resistive
Amperes
Socket = 8501NR61 or NR62
Socket = 8501NR61 or NR62
AC & DC
AC & DC
AC & DC
AC & DC
V14
24
12
12
8501KA112A
8501KA112
AC
CP2
Closing S1 alternates the loads between LA an dLB. S2 will only control LA.
Closing S1 alternates the loads between LA and LB.
LA is ON and LB is OFF. S1 is not used in this mode.
LA is OFF and LB is ON. S1 is not used in this mode.
S1 will control LA and S2 will control LB
S1 will control LB and S2 will control LA.
120
V20
Arrangement
HP
1/3
1/2
DPDT (N.O.)
DPDT (N.C.)
S
S
S
S
Contact
SPDT
DPDT
Detail
···
···
Discount
Schedule
Horsepower Rated
AC and DC Control
UL Listed w/ Square D Socket
Rohs Compliant
Pilot Duty
AC Voltage
B300
S1 = Control Switch 1
V24
240
E78351
LED + Toggle + Cross Wired
NLDX2
LED + Toggle
LED + Toggle
LED + Toggle
DC Volts
Options
30
Refer to Catalog 8501CT9401
Note: AC Voltage is 50/60 Hz
DC
“S” items have a 2 week lead time and no minimum order
requirement. All other part numbers require a minimum order
quantity of 100 and have a lead-time of 18 weeks.
S2 = Control Switch 2
Resistive
Amperes
12
Class
File
8501KA112A•••
8501KA112•••
8501KA81•••
8501KA82•••
Type
8501KA
3211-07
242675
LA = Load 1
$ Price
www.schneider-electric.us
© 2009 Schneider Electric
95.00
95.00
95.00
95.00
LB = Load 2
All Rights Reserved
IEC 61810-1

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