Honeywell R182J Series Switching Relays User Guide

: June 17, 2024
: Honeywell

Table of Contents

Honeywell R182J Series Switching Relays
Product Information
Frequently Asked Questions
Application
Installation
References
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Honeywell R182J Series Switching Relays

Product Information

Specifications

Models: R182J, R482J, R845A, R847A, RA89A, RA832A
Application: These relays can be used for a variety of
switching applications. Typically, they provide control of line- or
low-voltage devices by a low voltage controller.

Switching Relay Specifications

Model| Voltage Switch Control (50/60 Hz)| Action Circuit| Coil Voltage (Vac at 50/60 Hz)| Relay Coil Contact Current Ratings (A)
---|---|---|---|---
R182J| 120| Dpdt 3-wire| 24| AFL: 0.40a, ALR: 7.4, 44.4
R482J| 240| Controlled by a line voltage controller| 24| AFL: 0.08, ALR: 7.4, 44.4
R845A| 120| 2-wire| 120| AFL: 10.2, ALR: 61.2
R847A| 120 240| Dpst| 24| AFL: 7.4, ALR: 44.4
RA89A| 120| Spst| 120| AFL: 3.7, ALR: 22.2
RA832A| 208/240| Dpst| 240| AFL: 22, ALR: 100

Length of Wire

AWG Wire Size (Number)| Total Wire Length (Feet/Meters)| Length of Run to Thermostat (Wires) (Feet/Meters)
---|---|---
22| 120| 38.0 / 60
20| 200| 61.0 / 100
18| 300| 91.5 / 150
16| 500| 152.5 / 250
14| 800| 244.0 / 400

Installation

Read these instructions carefully. Failure to follow instructions can damage the product or cause a hazardous condition.
Check the ratings given in the instructions and on the product to make sure the product is suitable for your application.
Make sure the installer is a trained, experienced service technician.
After completing installation, use these instructions to check out product operation.

WARNING: ELECTROCUTION HAZARD CAN CAUSE PROPERTY DAMAGE, SEVERE INJURY, OR DEATH. Transformer core not bonded. Disconnect power supply before wiring to prevent electrical shock or equipment damage.

Mounting

For replacement, mount the relay in the same location as the old relay. If this is a new installation, locate the relay vertically on a solid wall or partition as close as possible to the device to be controlled.
Select a location that is easily accessible for installation and service.
To reduce the possible transformer hum and relay noise that is sometimes amplified by mounting surfaces such as sheet metal, plasterboard, and similar materials, place rubber or felt washers between the case and the mounting surface.
Position the relay and mark the mounting holes.
Start a screw for the keyhole type mounting hole in the upper right corner. Screw it down within about 1/8 in. [3 mm] of the surface.
Hang the relay on the screw, position the case, and start the bottom screw.
Tighten both screws.

Wiring

All wiring must comply with all applicable electrical codes, ordinances, and regulations. Follow any instructions furnished with the controlled equipment.
IMPORTANT: The switching relay terminals are approved for use with copper wires only.

Hookup Diagrams

See Figs. 2 through 9 for hookup diagrams for these relays.

Internal View of RA832A

Fig. 11 is an internal view of the RA832A showing terminal locations and barriers.

Frequently Asked Questions

Q: What are the applications of these switching relays?

A: These relays can be used for a variety of switching applications. Typically, they provide control of line- or low-voltage devices by a low voltage controller.

Q: Can these relays be used for hot water zone control systems?

A: Yes, models R482J and R847A can be used for hot water zone control systems.

Q: What is the maximum coil voltage for these relays?

A: The maximum coil voltage is 240 Vac at 50/60 Hz.

Q: Can I use these relays with aluminum wires?

A: No, the switching relay terminals are approved for use with copper wires only.

Q: How should I mount the relay to reduce noise?

A: To reduce transformer hum and relay noise, place rubber or felt washers between the case and the mounting surface.

R182J, R482J, R845A, R847A, RA89A, RA832A Switching Relays

Application

These relays can be used for a variety of switching applications. Typically they provide control of line- or low-voltage devices by a low voltage controller. See Table 1.

TABLE 1—SWITCHING RELAY SPECIFICATIONS.

Models

|

Application

|

Voltage

|

Switch

|

Control

| Coil Voltage (Vac at|

Relay Coil Current

|

Contact Ratings (A)

---|---|---|---|---|---|---|---
(50/60 Hz)| Action| Circuit| 50/60 Hz)| (A)| AFL| ALR
R182J| For 24V thermostat| 120| Dpdt| 3-wire| 24| 0.40a| 7.4| 44.4
control of line voltage

devices.

| 240| 3.7| 22.2
R482J| Controlled by a line| 120| 2-wire| 120| 0.08| 7.4| 44.4
voltage controller| 208/240| 208/240| 0.04| 3.7| 22.2
R845A| For hot water zone control systems or spst control of two separate loads.| 120| Dpst| 24| 0.40| 7.4| 44.4
R847A| Provides switching for| 120| 22| 100
high-current loads such as

cooling compressors.

| 240| 10| 50
RA89A| For switching one line voltage load.| 120| Spst| 10.2| 61.2
RA832A| For switching two line| 120| Dpst| 7.4| 44.4
voltage loads with a

common power source.

| 240| 3.7| 22.2

IMPORTANT: The transformer on the R182 can overheat when used with a series 20 thermostat if the total resistance of the thermostat circuit exceeds 2.5 ohms. If the measured resistance of the thermo-stat (including thermostat wire and thermostat con-tact 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.

TABLE 2—LENGTH OF WIRE.

AWG

Wire Size

(Number)

| __

Total Wire Length

| Length of Run to Thermostat (Wires)
---|---|---
Feet| Meters| Feet| Meters
22| 120| 38.0| 60| 18.0
20| 200| 61.0| 100| 30.5
18| 300| 91.5| 150| 45.5
16| 500| 152.5| 250| 76.0
14| 800| 244.0| 400| 122.0

Installation

WHEN INSTALLING THIS PRODUCT…

Read these instructions carefully. Failure to follow instructions can damage product or cause a hazardous condition.
Check the ratings given in the instructions and on the product to make sure the product is suitable for your application.
Make sure installer is a trained, experienced service technician.
After completing installation, use these instructions to check out product operation.

WARNING
ELECTROCUTION HAZARD CAN CAUSE PROPERTY DAMAGE, SEVERE INJURY, OR DEATH.
Transformer core not bonded.
Disconnect power supply before wiring to pre-vent electrical shock or equipment damage.

MOUNTING
For replacement, mount the relay in the same location as the old relay. If this is a new installation, locate the relay vertically on a solid wall or partition as close as possible to the device to be controlled. Select a location that is easily accessible for installation and service.

NOTE: To reduce the possible transformer hum and relay noise that is sometimes amplified by mounting surfaces such as sheetmetal, plasterboard, and similar materials, place rubber or felt washers between the case and the mounting surface.

Position the relay and mark the mounting holes. See Fig. 1.
Start a screw for the keyhole type mounting hole in the upper right corner. Screw it down within about 1/8 in.[3 mm] of the surface.
Hang the relay on the screw, position the case, and start the bottom screw.
Tighten both screws.

WIRING
All wiring must comply with all applicable electrical codes, ordinances, and regulations. Follow any instructions furnished with the controlled equipment.
IMPORTANT: The switching relay terminals are approved for use with copper wires only.
See Figs. 2 through 9 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.