RPS-00092B
Revised 11-03
Catalog Section 40
(00-02-0107)
Pull/Push DC Solenoids for
Diesel Engines
RP Series
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One Solenoid For Pull/Push Operation
No Internal Switches
Reduce Coil Burnout
Boost Reliability
Reduce Adjustments
High Force–Small Size
RP2309B & RP2310B
Can Be Used With Most Engines
Start Systems
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SD85 Solenoid Drive Time Delay
Available To Greatly Reduce Possibility
Of Coil Burnout And Facilitate Low
Current Piloted Operation.
RP2307B & RP2308B
They will operate at any stroke less than
maximum; refer to the chart shown on
page 2.
with each operation. If the plunger does
not seat in that time, it is highly
unlikely it will seat. The hold coil is
energized as long as the signal to the
SD85 is active. This insures long life of
the RP solenoid.
Description
Murphy push/pull DC Solenoids
provide single unit versatility for engine
applications, such as shutdown.
Models RP2309B and RP2310B can
pull 14 pounds (62 N) with a one-and-a-
half inch (38 mm) stroke. They hold up
to 34 pounds (151 N) at full voltage,
continuous duty. See the chart on page 2
for holding force at any stroke less than
maximum.
A choice of two models and two
voltages is available. All models come
complete with return spring and rubber
seal boot. See the next page for
specifications and options.
Warranty
A limited warranty on materials and workmanship
is given with this FW Murphy product. A copy of
the warranty may be viewed or printed by going
Basic Models
Models RP2307B and RP2308B give a
full one inch (25 mm) stroke at 11
pounds (49 N) and hold up to 23 pounds
(102 N) at full voltage, continuous duty.
SD85 Solenoid Drive
Time Delay
Using the SD85 ensures the energize
coil is only powered for 1-2 seconds
MODEL & PART NUMBERS:
DC SOLENOIDS & ACCESSORIES
Description
12 VDC, 1 in. (25 mm) stroke, 11 lbf (49 N) pull, 23 lbf (102 N) hold
24 VDC, 1 in. (25 mm) stroke, 11 lbf (49 N) pull, 23 lbf (102 N) hold
12 VDC, 1-1/2 in. (38 mm) stroke, 14 lbf (62 N) pull, 34 lbf (151 N) hold
24VDC, 1-1/2 in. (38 mm) stroke, 14 lbf (62 N) pull, 34 lbf (151 N) hold
SHIPPING WEIGHT
ozs (kg)
24 ozs (0.7 kg)
24 ozs (0.7 kg)
48 ozs (1.4 kg)
48 ozs (1.4 kg)
Model No.
RP2307B
RP2308B
RP2309B
RP2310B
65-01-0108
65-01-0110
Clevis yoke assembly
Clevis yoke chain assembly
1 ozs (.03 kg)
2 ozs (.04 kg)
40-05-0315
00-00-2457
00-00-2458
Threaded rod (1-1/2 in.)
RPS in-line ball joint
RPS 90° ball joint
.05 ozs (.001 kg)
.05 ozs (.001 kg)
1 ozs (.03 kg)
RPS-00092B page 1 of 4
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Typical Wiring Diagrams
Typical time-delayed shutdown using a 518PH magnetic switch
(SD85 is optional)
CAUTION: On certain starter solenoids/contactor relays,
NOTE: In either application if the starter
hangs, on starters with integral solenoids, the
energize coil remains energized.
current can feed back through the energize terminal
from the hold coil and provide a parallel path to ground
through the device connected to the energize terminal.
*
10 AWG
B
ST
1
2
3
4
5
Battery
N.O.
518PH
SD85
IG
20P-F
20T-F
TATTLETALE®
Start Key
Switch
SW SW
G
NC
B
1
2
Starter
Motor
SWICHGAGE®
Instruments
In-Line
Fuse
*
10 AWG
OFF
*
10 AWG
Starter Contactor
Relay
Typical Closed Loop™ Circuit
*
10 AWG
RP2300 Series
ON
Solenoid
Energize
Hold
Emergency
Stop
*Wires must be minimum 10 AWG (65/0.3 mm [4.5 mm]) to develop full force.
Fuel Lever
Typical time-delayed shutdown using a 760A magnetic switch
(SD85 is optional)
*
10 AWG
Existing
Start
System
OFF
Turn OFF for
Emergency Stop
1
2
3
4
5
Battery
ON
N.O.
SD85
Key Switch
OFF: No power.
START
ON: Power to hold coil of
fuel solenoid.
Starter
Motor
START: Power to energize
coil of fuel solenoid.
Starter Contactor
Relay
760A
*
*
10 AWG
10 AWG
ON
Time-Delay
Before Shutdown
20P
20T
*
10 AWG
RP2300 Series
Solenoid
OFF
G
NO NC
S
B
Energize
Hold
SWICHGAGE®
Instruments
*Wires must be minimum 10 AWG (65/0.3 mm [4.5 mm]) to develop full force.
Fuel Lever
Mechanical Installation
Operation
1.Bolt the solenoid securely to the mounting bracket. The solenoid coil is connected to the existing engine starter
2.Connect linkage and check for binding. Plunger should move system or an equivalent circuit. A SD85 is recommended. At
freely throughout the complete stroke and be allowed to starting, both the Energize and Hold-in coils are energized. In
“bottom” at the internal stop of the solenoid.
the run mode, the Hold-in coil is continuously energized while
the Energize coil has to be disconnected, reducing the heating
effect and power consumption and avoiding damage to the
device.
DO NOT MOUNT WITH BOOT DOWN.
DO NOT APPLY ANY GREASE OR LUBRICATION TO PARTS.
IMPORTANT: If the plunger does not seat, it will release
prematurely when shifted to the “holding” mode of operation.
Readjust linkage to lengthen the plunger stroke. Adjust the yoke
in increments of 1/2 turn until plunger will remain in hold
position.
NOTE: Coils that burn out due to improper electrical hookup,
misadjustment or improper operation are not covered by Murphy
factory warranty.
CAUTION: The solenoid housing is hot to the
touch. A temperature rise to 185°F (85°C) is
permissible.
Electrical Installation
1.Refer to the diagrams above for typical electric wiring.
2.Use minimum 10 AWG [65/0.3 mm (4.5 mm)] wire size, as
noted in the wiring diagrams. A smaller wire will reduce the
current available and thus the pulling force. Wire length must
be kept to a minimum.
NOTE: A cool down period of 15 minutes minimum should be
allowed between energized pull in cycles.
RPS-00092B page 3 of 4
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Accessories
RPS Linkage Parts and Assemblies
1-1/2 in.
(38 mm)
Threaded Rod
(40-05-0315)
1/4-28 Threads
SD85: Solenoid Drive Time Delay
The SD85 is used when the solenoid is duty cycled for short time
periods such as 2-position throttle operation. It also provides
enhanced operational control for normal on-off applications. The
SD85 activates both coils of the solenoid for a short time then de-
energizes the Energize-coil. The Hold-in coil remains energized.
RPS 90° Ball Joint
(00-00-2458)
1/4-28
Threads
1-1/4 in.
(32 mm)
3/8 in.
(9 mm)
SD85: Specifications
Input Voltage 8 to 30 VDC
Current Ratings:
1-1/4 in.
(32 mm)
40 ma standby (quiescent) 8 to 30 VDC
75 Amps Pull-in @12 VDC
1 Amps Hold @ 12 VDC
37.5 Amps Pull-in @ 24 VDC
0.5 Amps Hold @ 24 VDC
RPS In-Line Ball Joint (00-00-2457)
2 in.
(51 mm)
Terminal #3 2 Amps Maximum
Terminal #5 112.5 Amps Maximum during Pull-in
3/8 in.
(9 mm)
2-1/4 in.
(57 mm)
1/4-28 Threads
Clevis Yoke Bead Chain Assemblies
65-01-0110
2-3/16 in.
(56 mm)
Mounting Holes
3/16 in. (5 mm)
diameter 2-places
12 inch
(300 mm)
Chain
2-1/2 in. (64 mm)
Mounting Holes
3 in. (76 mm)
SD85 Terminal Block
1
2
3
4
5
Clevis Yoke Assembly
65-01-0108
1/16 in.
(2 mm)
diameter
10 ga.
10 ga.
10 ga.
1/16 x 3/8
Cotter Pin
NC
7/8 in.
(22 mm)
TATTLETALE®
Option
B
1/4-28
Thread
Control
Switch
5/8 in.
(16 mm)
(continuous HOLD
power to #2 and
temporary PULL
power to #4)
2 in.
(51 mm)
12-24 VDC
NOTE: Wires designated 10 ga. must be
at least 10 AWG [65/0.3 mm (4.5 mm)] to
develop full force.
1/4 in. (6 mm) diameter
Clevis Yoke
Solenoid
CONTROL SYSTEMS & SERVICES DIVISION
P.O. Box 1819; Rosenberg, Texas 77471; USA
+1 281 633 4500 fax +1 281 633 4588
e-mail [email protected]
FRANK W. MURPHY, LTD.
MACQUARRIE CORPORATION
1620 Hume Highway
Church Rd.; Laverstock, Salisbury SP1 1QZ; U.K.
+44 1722 410055 fax +44 1722 410088
e-mail [email protected]
Campbellfield, Vic 3061; Australia
+61 3 9358 5555 fax +61 3 9358 5558
e-mail [email protected]
FW Murphy
P.O. Box 470248
MURPHY DE MEXICO, S.A. DE C.V.
Blvd. Antonio Rocha Cordero 300, Fracción del Aguaje
San Luis Potosí, S.L.P.; México 78384
+52 444 8206264 fax +52 444 8206336
Villahermosa Office +52 993 3162117
e-mail [email protected]
MURPHY SWITCH OF CALIFORNIA
41343 12th Street West
Palmdale, California 93551-1442; USA
+1 661 272 4700 fax +1 661 947 7570
e-mail [email protected]
Tulsa, Oklahoma 74147 USA
+1 918 317 4100
fax +1 918 317 4266
e-mail [email protected]
USA–ISO 9001:2000 FM 28221
UK–ISO 9001:2000 FM 29422
In order to consistently bring you the highest quality, full featured products, we reserve the right to change our specifications and designs at any time.
Printed in U.S.A.
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