Lowell RY2 Datasheet
Lowell Manufacturing Company • 100 Integram Drive • Pacific, Missouri 63069 U.S.A.
Call 800.325.9660, 636.257.3400 • Fax 636.257.6606 • Click www.lowellmfg.com
Lowell makes every effort to provide accurate information and reserves the right to change specifications and/or improve manufacturing methods.
Download and print this spec from www.lowellmfg.com to insure that you have the most current information
4c-206
pg 1 of 2
Printed in U.S.A. © 04-20-06
RY Series
Relay Modules
RY-2
Description
Lowell Models RY-2 and RY-4 are relay modules with two or
four heavy duty double-pole, double-throw (DPDT) relays
respectively. Each relay coil has a 5A contact rating, includes
spike and polarity protection, and is independent to allow for
maximum application versatility. The relay may also be field
converted to AC operation by installing an electrolytic capacitor (see page 2).
General purpose relay Models RY-2 and RY-4 are reliable
building blocks that are used in a wide variety of applications
around the world. Equipment connections are made to the
externally accessible three-sided barrier strips that are furnished with wire clamps. The protective steel chassis is finished in black semi-gloss powder epoxy and includes holes
for screw mount installation to a wall or to pre-punched rackmount shelf Model L15-310E (order separately - see page
2). Assembly ships with connection diagram on top for easy
installation.
Lowell also offers a variety of accessories that may be used in conjunction
with the relays such as low voltage switches, a DC power supply and
19”W rackmount shelf (see page 2).
A & E Specifications
Relay module shall be Lowell Model ______ ( RY-2, RY-4 )
to provide ______ (2, 4) heavy duty DPDT relays. The
relays shall have three-sided barrier strip terminals with wire
clamps. The relay coils shall be independent from one
another and have a contact rating of 5 Amps, 24VDC /
240VAC. The relay shall be built with spike suppression
capability and polarity protection diodes on each relay coil.
The relay module(s) shall be enclosed in a compact steel
chassis with holes for wall or shelf mounting. The finish of
the chassis shall be semi-gloss black powder epoxy.
RY-4
Quality Features
Double-pole, double-throw (DPDT) relays.
Spike suppression and polarity protection diodes
provided on each relay coil.
Enclosed design protects relays and components.
Relay coils are field switchable to AC operation.
Compact size for convenient installation.
Model Relay Coil Relay Contact Dimensions Weight
Input Contact Type Rating L x W x H
RY-2 24 VDC 2 DPDT 5 Amps 5" x 3.28" .75 lb.
22 mA (1100 ohm) 24VDC / 240VAC x 1.688"
RY-4 24 VDC 4 DPDT 5 Amps 5" x 6.25" 1.25 lbs.
22 mA (1100 ohm) 24VDC / 240VAC x 1.688"
RY Series
Relay Modules
Lowell Manufacturing Company • 100 Integram Drive • Pacific, Missouri 63069 U.S.A.
Call 800.325.9660, 636.257.3400 • Fax 636.257.6606 • Click www.lowellmfg.com
Lowell makes every effort to provide accurate information and reserves the right to change specifications and/or improve manufacturing methods.
Download and print this spec from www.lowellmfg.com to insure that you have the most current information
4c-206
pg 2 of 2
AUDIO
12”/10”
Speakers &
Accessories
8”
Speakers &
Accessories
6”
Speakers &
Accessories
4”
Speakers &
Accessories
Horn
Speakers &
Accessories
Masking
Speakers &
Generators
Control
Accessories
& Electronics
Maintained Switches Momentary Switches Activation Device Style
(single switch applications) (multiple switch applications- Style (wall plate or rackmount)
also requires MSM module)
RPSW-P RPSW-MP Rocker Wall plate, 1 gang decora-style, white
RPSW-KP RPSW-MKP Key Wall plate, 1 gang decora-style, white
RPSB-R RPSB-MR Rocker Rack panel (1RU), black
RPSB-KR RPSB-MKR Key Rack panel (1RU), black
Momentary Switch Module (required for multiple switch applications)
MSM Changes maintained closure to momentary for connection of multiple switches, 5”L x 3.279”W x 1.687”H
General Purpose DC Power Supply (2A output)
PS1224-2 DC power supply with 117VAC input, 2A selectable 6V, 12V, 24V output, 7.5”L x 3.25”W x 3.625”H
Rackmount Equipment Shelf with Security Panel
L15-310E 2RU shelf with front panel + mounting and lacing holes for electronics, 19”W x 3.5”H x 10”D
Potential Companion Accessories From Lowell (order separately)
RPS Series
Wall plate and rackmount switches.
Choose maintained or momentary closure
and rocker or key activation.
Connect
control voltage to relay
Connect equipment to be
controlled by the DPDT relay.
(5A rating for each contact)
PC Board assembly
illustrating 1 DPDT relay
RY2 and RY4 relay PC Board layout (1 DPDT relay shown)
MSM
PS1224-2
L15-310E
*Note: To convert the relay to AC operation, install an electrolytic capacitor on the PC board at points indicated by .
Be sure to observe polarity. Recommended capacitor value: 22mfd, 50v.
Be aware that adding a capacitor will delay the release time of the relay by approximately 25 milliseconds. Minimum AC input is 18 volts.
See Note*
Relays & Devices
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