R182J, R482J, R845A, R847A,
R882J, RA89A, RA832A
These relays provide intermediate or heavy
duty service in a wide variety of switching configurations.
Switching Relays
■ Relays with 24V control coils: Rl82J, R882J, R847A,
RA89A, RA832A, and R845A.
■ Relays with line voltage control coils: R482J.
■ Relays with internal 24V transformer: R182J,
RA89A, RA832A, R845A, and R847A.
■ Relays for use with an external 24V supply: R882J.
■ Heavy duty relays: R847J.
■ R847A has flexible internal leads to provide either
spst or spdt switching.
■ RA832A has contacts for low voltage and
millivoltage (Powerpile
CONTENTS
Specifications .................................................2
Ordering Information..................................... 2
Installation .....................................................3
Service and Checkout .....................................6
®
) use.
1 60-2481—2J.H. • Rev. 10-94 • ©Honeywell Inc. 1994 • Form Number 60-2481—2
R182J, R482J, R845A, R847A, R882J, RA89A, RA832A
SPECIFICATIONS • ORDERING INFORMATION
Specifications
IMPORTANT: The specifications given in this publica-
tion do not include normal manufacturing tolerances. Therefore, this unit may not exactly match the
listed specifications Also, this product is tested and
calibrated under closely controlled conditions, and
some minor differences in performance can be expected if those conditions are changed.
TRADELINE® MODELS
TRADELINE models are selected and packaged to
provide ease of stocking, ease of handling, and maximum
TABLE 1—SWITCHING RELAY SPECIFICATIONS.
Voltage Switch Control
Models Application
R182J
R482J
R845A For hot water zone control
R847A
For 24V thermostat control
of line voltage devices.
Controlled by a line
voltage controller
systems or spst control of
two separate loads.
Provides switching for
high-current loads such as
cooling compressors.
(50/60 Hz) Action Circuit 50/60 Hz) (A)
120 Dpdt 3-wire 24 0.40
240 3.7 22.2
120 2-wire 120 0.08 7.4 44.4
208/240 208/240 0.04 3.7 22.2
120 Dpst 24 0.40 7.4 44.4
120 22 100
240 10 50
replacement value. TRADELINE model specifications are
the same as those of standard models except as noted below.
TRADELINE MODELS AVAILABLE:
R182J—120 and 240V models.
R482J—120 and 240V models.
R845A—120V models.
R847A—120 and 240V models.
RA89A—24V controller.
RA832A—120 and 240V models.
ADDITIONAL FEATURES: TRADELINE pack with cross
reference label and special instructions.
STANDARD MODELS: See Table 1.
Coil
Voltage
(Vac at
Relay Coil
Current
a
Contact
Ratings (A)
AFL ALR
7.4 44.4
R882J For use with separate low
voltage power source.
RA89A For switching one line
voltage load.
RA832A
a
See footnote on page 3.
For switching two line
voltage loads having a
common power source.
24 Dpdt 7.4 44.4
120 Spst 10.2 61.2
120 Dpst 7.4 44.4
240 3.7 22.2
Ordering Information
When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the Tradeline
Catalog or price sheets for complete ordering number, or specify—
1. Order number. 2. Accessories, if desired.
If you have additional questions, need further information, or would like to comment on our products or services, please write or phone:
1. Your local Home and Building Control Sales Office (please check the white pages of your phone directory).
2. Home and Building Control Customer Logistics
Honeywell, Inc., 1885 Douglas Drive North
Minneapolis, Minnesota 55422-4386 (612) 951-1000
In Canada—Honeywell Limited/Honeywell Limitee, 740 Ellesmere Road, Scarborough, Ontario M1P2V9. International Sales and
Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France, Germany, Japan, Mexico,
Netherlands, Spain, Taiwan, United Kingdom, U.S.A.
60-2481—2 2
a
IMPORTANT: The transformer on the R182 can over-
heat when used with a series 20 thermostat if the
total resistance of the thermostat (including thermostat wire and thermostat contact resistance) exceeds
2.5 ohms, add a 100 ohm, 10 watt resistor between
the W and R terminals. Table 2 gives maximum
thermostat wire runs; if longer runs are necessary,
measure the resistance or add a 100 ohm, 10 watt
resistor across terminals W and R.
See Table 2 for the ratings of built-in transformer (all
transformers are rated at 120/240V, 50/60 Hz).
R182J, R482J, R845A, R847A, R882J, RA89A, RA832A
SPECIFICATIONS • INSTALLATION
Fig. 1—Approximate mounting dimensions in
in. [mm].
1
4 [108]
5
1 [29]
32
4
7
1
8
[48]
TABLE 2—TRANSFORMER RATINGS.
Transformer Rating (watts)
R847A 7.0
RA89A 5.0
RA832A —
R845A —
R182J 6.5
FINISH: Gray enamel.
KNOCKOUTS:
Case bottom: (2) RA89A, RA832A, R845A; (3) Rl82J,
R482J, R882J.
All models have 1 wiring hole in case top.
All knockouts are for 1/2 in. [12.7 mm] conduit.
APPROVALS:
Underwriters Laboratories Inc. Listed: RA89A; RA832A,
R882J; R845A: File no. E4436, Guide no. XAPX.
R482J: File no. E14480, Guide no. NLDS.
R847A: File no. SA481, Guide no. SDFY.
Canadian Standards Association Certified: R482J; R882J;
R847A: File no. LR1620.
3
[2] DIAMETER
32
1
[13] DIAMETER
2
1
3 [89]
7
[6] DIAMETER MOUNTING HOLE
32
2
7
[22] DIAMETER
8
KEYHOLE TYPE
MOUNTING HOLE
1
4
2
[114]
5
[133]
3
[10]
8
3
[10]
8
15
2
16
[75]
7
1
8
[48]
1
4
WHEN INSTALLING THIS PRODUCT …
1. Read these instructions carefully. Failure to follow
them could damage the product or cause a hazardous
condition.
2. Check the ratings given in the instructions and on the
product to make sure the product is suitable for your
application.
3. Installer must be a trained, experienced service
technician.
4. After completing installation, use these instructions
to check out product operation.
25
32
[20]
3
1 [35]
8
KNOCKOUT FOR
1/2 (13) CONDUIT (3)
M3823
Installation
WARNING
ELECTROCUTION HAZARD.
CAN CAUSE PROPERTY DAMAGE,
SEVERE INJURY, OR DEATH.
Transformer core not bonded.
Disconnect power supply before wring to prevent
electrical shock or equipment damage.
3 60-2481—2
R182J, R482J, R845A, R847A, R882J, RA89A, RA832A
INSTALLATION
MOUNTING
For replacement, mount the relay in the same location as
the old control. If this is a new installation, locate the relay
vertically on a solid wall or partition as near as possible to
the device to be controlled. Select a location that is easily
accessible for installation and service.
NOTE: To reduce possible transformer hum and relay
noise that can be amplified by mounting surfaces of
sheetmetal, plasterboard, and similar materials, place
rubber or felt washers between the case and the mounting surface.
l. Position the relay and mark the mounting holes. See
Fig. 1.
2. Start a screw for the keyhole type mounting hole in
the upper right-hand corner. Turn down screw within about
l/8 in. [3.2 mm] of the surface.
3. Hang the relay on the screw, position the case, and
start the bottom screw.
4. Tighten both screws.
IMPORTANT: The switching relay terminals are ap-
proved for use with copper wires only.
All wiring must comply with all applicable electrical
codes, ordinances, and regulations. Follow any instructions
furnished with the controlled equipment.
See Figs 2 through 10 for hookup diagrams for these
relays. When two or more devices are to be controlled in
parallel, the total current must not exceed the relay load
rating. Fig. 11 is an internal view of the RA832A, showing
terminal locations and barriers.
Never connect load terminals to a load that takes more
current than the amount listed in the electrical ratings on the
relay. See Table 3 for wiring length specifications.
TABLE 3—WIRE LENGTH SPECIFICATIONS.
Length of Run to
AWG Wire
Size
(Number)
Total Wire
Length
Feet Metres Feet Metres
Thermostat
(2 wires)
22 120 38 60 18
20 200 61 100 30.5
18 300 91.5 1150 45.6
16 500 152.5 250 76
14 800 244 400 122
Fig. 3—Internal schematic and typical hookup
for RA832A.
LOW VOLTAGE (CLASS 2)
2-WIRE THERMOSTAT
TT
21 34
L2
1
POWER SUPPLY. PROVIDE OVERLOAD PROTECTION
1
AND DISCONNECT MEANS AS REQUIRED.
L1
HOT
XX
LOAD 1
LOAD 2
(OPTIONAL)
AUXILIARY TO LOW
OR MILLIVOLTAGE
(POWERPILE) LOAD
RA832A
M3821
Fig. 2—Internal schematic and typical hookup
for RA89A.
LOW VOLTAGE (CLASS 2)
2-WIRE THERMOSTAT
TT
21 34
L2
1
2
RA89A (SPST)
JUMPER
TO LOAD
L1
1
HOT
POWER SUPPLY. PROVIDE OVERLOAD PROTECTION
AND DISCONNECT MEANS AS REQUIRED.
COMPLETE WIRING AS SHOWN ABOVE.
2
JUMPER REMOVED
21 34
L2
1
CONTROLLER
(IF USED)
L1
HOT
RA89A
TO LOAD
1
M3819
Fig. 4—Internal schematic and typical hookup
for R182J.
R182J
WX RB
3
OHMS
L1
L2
L1
L2
(HOT)
POWER SUPPLY. PROVIDE OVERLOAD PROTECTION AND
1
DISCONNECT MEANS AS REQUIRED.
N.O. CONTACTS MAKE BEFORE N.C CONTACTS BREAK,
2
AND N.C. CONTACTS MAKE BEFORE N.O. CONTACTS BREAK.
K1
K1
4
LOAD
1
N.O.
K1
K2
37
LOAD
N.C.
N.O.
2
K2
6
N.C.
M8232
60-2481—2 4
R182J, R482J, R845A, R847A, R882J, RA89A, RA832A
INSTALLATION
Fig. 5—Thermostat connections for R182J. Fig. 7—Schematic diagram showing R845A in
multizone, forced hydronic heating system.
THREE-WIRE
LOW VOLTAGE
(SERIES 10)
THERMOSTAT
RRB
W
W
R182J
MAKES CONTACT ON TEMPERATURE FALL ONLY.
1
MAKES CONTACT ON BOTH A TEMPERATURE RISE AND FALL.
2
1
BX
THREE-WIRE
LOW VOLTAGE
(SERIES 20)
THERMOSTAT
W
W
RB
R
R182J
JUMPER
2
BX
TWO-WIRE
LOW VOLTAGE
(SERIES 80)
THERMOSTAT
W
R182J
M8233A
R
Fig. 6—Internal schematic and typical hookup
for R482J.
R482J
BX
This arrangement is suitable for any number
of additional zones.
HYDRONIC HEATING
CONTROL TERMINALS
T
THERMOSTAT
THERM.
ZONE 1
T
ZC
ZP
B1
BURNER
BURNER
CONTROL
B2
C1
CIRC.
CIRCULATOR
ZONE 1
C2
1
LINE
2
POWER SUPPLY. PROVIDE OVERLOAD PROTECTION
1
AND DISCONNECT MEANS AS REQUIRED.
2
IF CONTROLLING TWO LOADS, USE:
3 AND 4 FOR LINE VOLTAGE LOAD
5 AND 6 FOR LINE OR LOW VOLTAGE LOAD
3
IF USING LOW VOLTAGE, USE A SEPARATE TRANSFORMER.
TO ADDITIONAL R845A
RELAYS FOR OTHER ZONES
RA845A RELAY
2
1
4
3
5
6
L1
HOT
1
L2
THERMOSTAT
ZONE 2
CIRCULATOR
ZONE 2
2
3
M3822
CONTROLLER
1
L1
(HOT)
L2
POWER SUPPLY. PROVIDE OVERLOAD PROTECTION
1
AND DISCONNECT MEANS AS REQUIRED.
CONTROLLER (IF USED) MUST BE SNAP ACTION OR
2
MERCURY SWITCH TYPE.
N.O. CONTACTS MAKE BEFORE N.C CONTACTS BREAK,
3
AND N.C. CONTACTS MAKE BEFORE N.O. CONTACTS BREAK.
3
5
421
2
N.O.
37
N.C.
COM. COM.
TO LOAD
8
N.O.
3
6
N.C.
TO LOAD
M8234
Fig. 8—R845A hookup for controlling two
loads.
LOW VOLTAGE (CLASS 2)
2-WIRE THERMOSTAT
TT
21 34
LOAD 1
2
TO
POWER
1
L1
HOTL2
POWER SUPPLY. PROVIDE OVERLOAD PROTECTION
1
AND DISCONNECT MEANS AS REQUIRED.
WHEN CONTROLLING TWO LOADS, USE 3 AND 4
2
FOR LINE VOLTAGE LOAD AND 5 AND 6 FOR LINE
OR LOW VOLTAGE LOAD.
IF USING LOW VOLTAGE, USE A SEPARATE
3
TRANSFORMER.
1 1
TO
POWER
R845A
65
3
LOAD 2
M3820
5 60-2481—2
R182J, R482J, R845A, R847A, R882J, RA89A, RA832A
INSTALLATION • SERVICE AND CHECKOUT
Fig. 9—Internal schematic and hookup for
R847A.
LOW VOLTAGE (CLASS 2)
2-WIRE THERMOSTAT
TT
L2 L1 34
LOAD 1
2
TO
POWER
1
L1
L2
(HOT)
POWER SUPPLY. PROVIDE OVERLOAD PROTECTION
1
AND DISCONNECT MEANS AS REQUIRED.
WHEN CONTROLLING TWO LOADS, USE 3 AND 4
2
FOR LINE VOLTAGE LOAD AND 5 AND 6 FOR LINE
OR LOW VOLTAGE LOAD.
IF USING LOW VOLTAGE, USE A SEPARATE
3
TRANSFORMER.
4
10 AMP CONTACT RATING OR 20 AMP WHEN POLES
ARE CONNECTED IN PARALLEL.
1 1
TO
POWER
R847A
67
44
3
LOAD 2
M8231B
Fig. 11—Internal view of RA832A Switching
Relay.
T
T
24V TRANSFORMER
X
X
12
34
RELAY
M3824
Fig. 10—Internal schematic and hookup for
R882J.
LOW VOLTAGE
SOURCE
2
4
N.O.
3
5
N.C.
LOAD
CONTROLLER
R882J
1
3
37
8
N.O.
COM. COM.
6
N.C.
LOAD
M8235
Service and Checkout
1. Never use oil on any part of the relay coil or contacts.
2. Keep the cover on the relay during normal operation
and remove only for service and checkout.
3. Relay contacts require no cleaning; contacts close
with a wiping action and are self-cleaning. They may turn
black after being in service for some time; however, this
discoloration does not prevent proper operation.
4. After installation is complete, operate system through
at least one cycle from the controller to make certain the
relay controls the equipment as intended.
Home and Building Control Home and Building Control Helping You Control Your World
Honeywell Inc. Honeywell Limited—Honeywell Limitée
1985 Douglas Drive North 740 Ellesmere Road
Golden Valley, MN 55422 Scarborough, Ontario
M1P 2V9
Printed in U.S.A.
QUALITY IS KEY
60-2481—2 6
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