General
Purpose
DPDT RELAY Module
With HOA Switch
and 1 KΩ feedback
RM-5 is a Din rail mounted DPDT, Form - C contacts
general purpose control relay. It is designed to control any
low or high voltage, medium current loads. It has a built in
manual HOA
switch ( HANDS - OFF - AUTO SWITCH) for convenience of
switching Loads ON or OFF for override manually.
•
Double Pole Double Throw form “ C “ contacts
•
Can switch 5 Amps up to 250 VAC
•
Din Rail mounted
•
Modules plug in to each other, no need to wire each
unit and reduces the wire termination time
significantly
•
Built in 3 position manual “ HOA “ toggle switch
•
Has a feed back resistor ( 1 KOHMS ) to detect if the
Relay is overridden
•
“On “ and “ Overridden “ status LEDs
•
Large opening terminal blocks
•
Works from any 24 VAC source to control the
output relay
•
Very high quality relay, surge voltage between the
contacts are 10,000 VAC
•
Relay is UL, CSA, VDE and SEMKO approved
•
Over 5,000,000 cycle minimum expected
mechanical life
•
Over 100,000 cycle minimum expected life under
full load (resistive)
•
Economical
DOCUMENT NO : ZL-RM-5 REV. 1
Model :
RM - 5
DPDT Form - C
5 Amps @ 250 VAC
Copyrights  1999 SOLIDYNE CORP. 4215 KIRCHOFF RD. , ROLLING MEADOWS ILL. 60008 USA
TEL 847-394-3333
FAX 847-394-8083 PAGE -1
OPERATION :
RM - 5 is designed to operate from a 24 VAC control
voltage signal. It is primarily designed for control panels
where there are number of such relays are installed. The
module has many features built in that are useful,
convenient and reduce cost of wiring very significantly.
These features are as follows :
Additionally, the feedback resistors are connected in
series via these connectors. Hence, only the first and
last module needs to be wired (2 terminations) to the
Sensor Common and Sensor Input of the Controller.
4. It has 2 status LEDs. RED LED indicates if the relay is
energized. The second YELLOW LED is for Override
indicator, which turns along with the RED LED if it is
overridden ON.
1.
RM - 5 has built in 3 position HOA override switch.
The relay output can be overridden to be OFF ( deenergized), ON (energized) or operate Automatically
by the controlling signal.
RM - 5 is designed to be mounted on a DIN rail. This
allows multiple modules to be snapped on to the DIN rail
without any additional labor. This saves time and allows
future flexibility.
2.
It has a 2 wire Feedback signal This signal is a
resistor which has a value of “ 0 “ Ohm (short) in
Auto mode and becomes 1.00 Kilo Ohms if it is
overridden to be ON or OFF.
This feature can be used with any Controller as a
feedback signal where if the resistance is any value
other than 0 ohms, it is overridden.
3.
The modules have a unique design where one
module plugs into a module next to it. Each module
has a two (3 pins) connectors on the side. One set
is mail and the other one is female and they mate. If
one module is wired for 24 VAC HOT and Return,
then all the other modules will be powered for 24
VAC via these 3 pin connectors, if they are plugged
into each other.
RM - 5 has a very reliable in relay. It is specifically
design for control applications where the voltage break
down between the contacts and contacts to the relay coil
is exceptionally high. It is in excess of 10,000 volts. If the
relay contacts are switching electrically noisy and very
inductive loads they will generate a lot of voltage
transients and spikes they are turned on and off. Due to
very high voltage isolation between the contacts and the
relay coil, the Controller will further be protected from
these high voltage transients.
The module has very long mechanical and electrical life
for control applications.
INPUT WIRING
TERMINAL BLOCK
MATING 3 TERMINAL
MALE CONNECTOR
YELLOW OVERRIDE STATUS LED.
IT WILL TURN ON IF THE TOGGLE
SWITCH IS ON
RED STATUS LED. IT WILL TURN
ON IF THE RELAY IS ENERGIZED
FEED
BACK
24 VAC CTRL 24 VAC
COM
INPUT HOT
3 TERMINAL FEMALE
CONNECTOR
OVERRIDDEN ON
AUTO
OVERRIDE SWITCH:
UP POSITION : AUTO
MIDDLE POSITION : OFF
DOWN POSITION: ON
OFF
HAND
AUTO ON
C
ACTUAL OUTPUT RELAY
DOUBLE POLE, DOUBLE THROW,
FORM “ C “ CONTACTS, 24 DC
COIL
N.C.
N.O.
OUTPUT
RELAY
RELAY OUTPUT CONTACTS FORM “C”
DPDT
5 AMPS UP TO 250 VAC
K1
NOTE :
“ ON “ MEANS ENERGIZED
“ OFF “ MEANS DE-ENERGIZED
Fig. 1
ZL-RM - 5 REV. 1
Copyrights  1999
RM - 5 VIEW
C
N.C.
N.O.
SOLIDYNE CORP. 4215 KIRCHOFF RD. , ROLLING MEADOWS ILL. 60008 USA
TEL 847-394-3333
FAX 847-394-8083
PAGE -2
SPECIFICATIONS :
Input Voltage
:
16.5 to 27.00 VAC
Contact ratings
Max
:
:
DPDT Form C contacts
5 Amps @ 250 VAC or 1250 VA 5 Amps @ 30 VDC
or 150 Watts 1/8 HP at 120 or 250 VAC
Power Consumption
:
0.750 VA
Surge Voltage between the contacts :
the contacts and the coil
:
10,000 V
10,000 V
Electrical Life
:
100,000 operations under full load ( resistive)
Mechanical Life
:
5,000,000 operations
Feedback Signal
On or Off
:
0 Ω (short) when in Auto position, 1 KΩ when it is in
Max. No. of Modules Interconnected :
16
Mechanical
:
3.000 “L x 1.350 “ W x 2.500 “H
Mounting
:
Standard DIN rail snap on
Operating temperature
:
- 40 ° F to 150 ° F
Storage Temperature
:
- 40 ° F to 165 ° F
Operating Humidity
:
5 to 85 % non condensing
WIRING :
The wiring is shown in Fig. 2
Caution :
1. Excessive wear and tear will occur if the relay contacts are wired to control excessive load currents. Do not
use this relay module if the load switching is above 250 VAC and current rating is more than 5.00 Amps and
resistive load. Maximum power specified to control is 1250 VA AC load.
2. Do not use this relay module if it is controlling a motor, which is more than 1/8 HP.
3. Do not exceed 30 VDC and 150 Watts DC load.
4. Do not exceed 3.00 Amps AC if the power factor cosϕ ≤ 0.4
ZL-RM - 5 REV. 1
Copyrights  1999
SOLIDYNE CORP. 4215 KIRCHOFF RD. , ROLLING MEADOWS ILL. 60008 USA
TEL 847-394-3333
FAX 847-394-8083
PAGE -3
TO THE OUTPUT OF
A CONTROLLER
24 VAC
HOT
24 VAC
CONTROL
TRANSFORMER
24 VAC
COMMON
THIS WIRE GOES TO THE
CONTROLLER’S SELECTED
SENSOR INPUT
THIS WIRE GOES TO THE
CONTROLLER SENSOR
INPUT COMMON
THIS PIN IS 24 VAC
COMMON
DIN
RAIL
THIS PIN IS 24 VAC
HOT
THIS PIN IS FEED BACK
RESISTOR SERIES
CONNECTION
LAST MODULE
FIRST MODULE
•
•
Fig. 2
SLIDE AND PLUG ONE MODULE INTO THE NEXT.
NO NEED TO CONNECT 24 VAC WIRES OR FEED BACK
SIGNALS TO THESE UNITS IF THEY PLUGGED INTO THE
FIRST UNIT
RM - 5 Wiring
AUTO
OFF
ON
AUTO
1 KOHMS FEED
OFF
BACK RESISTOR
ON
OVERRIDE SWITCH
RED
STATUS LED
RELAY COIL
N.O.
N.O.
COMMON
COMMON
N.C.
Fig. 3
ZL-RM - 5 REV. 1
Copyrights  1999
N.C.
RM - 5 Internal wiring diagram
SOLIDYNE CORP. 4215 KIRCHOFF RD. , ROLLING MEADOWS ILL. 60008 USA
TEL 847-394-3333
FAX 847-394-8083
PAGE -4