Multi-Voltage
Conventional Relays
System Sensor’s multi-voltage conventional relays
are used for high-current switching applications such
as fan and damper assembly control, door control,
air handling unit controls, and other types of system
interfacing.
Features
• Multi-voltage operation
• Activation LEDs
• Easy and flexible installation
• Reliable and robust design
• Multipurpose field installations
• Multi-voltage relays with terminal strip field wiring connections,
mounting track, and hardware for R-10T/20T and R-14T/24T
• Removable front cover on steel enclosure for R-10E/R-20E and R-
14/R-24E, which mount inside the enclosure
• LED viewing hole on top of the steel enclosure’s cover
• Extra pair of wires for redundant power input on PR-3
• Terminal strip field wiring connections, mounting track, and
hardware
The R-10T, R-20T, R-14T, and the R-24T models
are multi-
voltage relays with terminal strip field wiring connections, mounting
track, and hardware. The R-10T is a single FORM–C (SPDT) relay with
a red activation LED, and the R-14T is a four-gang 1 FORM–C (SPDT)
relay with four red activation LEDs. The R-20T is a single 2 FORM–C
(DPDT) relay with a red activation LED, and the R-24T is a four-gang 2
FORM–C (DPDT) relay with four red activation LEDs.
The R-10E/R-20E and R-14E/R-24E
are similar to the T-series
track mount relays, but they are mounted into a steel enclosure. The
enclosure has a removable front cover that provides easy access and
an LED viewing hole on the top of the cover.
PR-1/PR-2/PR-3
are epoxy encapsulated multi-voltage relays. They
are single-pole double-throw relays that use a red LED as a visible
indication of relay coil energization. PR–3 is
identical to PR–2, except it has an extra pair of wires for redundant
power input.
Model EOLR-1
is an epoxy encapsulated, single-pole single-throw,
normally open relay that can be used as an end of line device in fire
alarm systems, e.g. to supervise power supplies.
Agency Listings
Multi-Voltage Conventional Relay Specifications
Specifications: R-10T/R-14T/R-20T/R-24T
Operating Voltage
Operating Current
18 – 35 VDC, 18 – 35 VAC, 115 VAC, 230 VAC
20 mA DC max. @ 24 VDC, 24 VAC, 115 VAC,
230 VAC (R-10T/R-14T)
40 mA DC max. @ 24 VDC, 24 VAC, 115 VAC,
230 VAC (R-20T/R-24T)
Operating Temperature
–40°F to 158°F (–40°C to 70°C)
Humidity Range
10% – 93% non-condensing
Dimensions
R-10T/R-20T: 2.5˝L × 3.35˝W × 1.2˝H
R-14T/R-24T: 10˝L × 3.35˝W × 1.2˝H
Contact Ratings
24 VDC: 7 A with L/R = 5 mS
120 VAC: 10 A
120 VAC: 1/6 HP
230 VAC: 7 A
Specifications: R-10E/R-14E/ R-20E/R-24E
Operating Voltage
18 – 35 VDC, 18 – 35 VAC, 115 VAC, 230 VAC
Operating Current
20 mA DC max. @ 24 VDC, 24 VAC, 115 VAC,
230 VAC (R-10E/R-14E)
40 mA DC max. @ 24 VDC, 24 VAC, 115 VAC,
230 VAC (R-20E/R-24E)
Operating Temperature
–40°F to 158°F (–40°C to 70°C)
Humidity Range
10% – 93% non-condensing
Dimensions
R-10E/R-20E: 5.1˝L × 3.75˝W × 2.5˝H
R-14E/R-24E: 11˝L × 5.3˝W × 2.5˝H
Contact Ratings
24 VDC: 7 A with L/R = 5 mS
120 VAC: 10 A
120 VAC: 1/6 HP
230 VAC: 7 A
Specifications: PR-1
Operating Voltage
Operating Current
Operating Temperature
Humidity Range
Wire Length
Dimensions
Contact Ratings
18 – 35 VDC, 18 – 35 VAC, 120 VAC
15 mA DC max. @ 24 VDC, 24 VAC, 120 VAC
–40°F to 158°F (–40°C to 70°C)
10 – 93% RH
8˝ minimum
0.87˝H × 2.01˝W × 1.42˝D
24 VDC: 7 A with L/R = 5 mS
120 VAC: 7 A max. (0.35 PF)
250 VAC: 10 A resistive
30 VDC: 10 A resistive
10 to 40 VDC
30 mA DC max.
–40°F to 158°F (–40°C to 70°C)
10 – 93% RH
8˝ minimum
0.91˝H × 1.65˝W × 1.22˝D
120 VAC: 10 A max. (resistive load)
120 VAC: 7 A max. (0.35 PF)
250 VAC: 10 A max. (resistive load)
30 VDC: 10 A max. (resistive load)
9 to 40 VDC
20 mA DC max.
–22°F to 140°F (–30°C to 60°C)
10 – 93% RH
8˝ minimum
120 VAC: 0.5 A max. (resistive load)
30 VDC: 3 A max. (resistive load)
Specifications: PR-2/PR-3
Operating Voltage
Operating Current
Operating Temperature
Humidity Range
Wire Length
Dimensions
Contact Ratings
Specifications: EOLR-1
Operating Voltage
Operating Current
Operating Temperature
Humidity Range
Wire Length
Contact Ratings
PR–1
E0LR–1
PR–3
R-10E & R-20E Enclosure
PR–2
R–10T
R–14T
R-14E & R-24E Enclosure
3825 Ohio Avenue • St. Charles, IL 60174
Phone: 800-SENSOR2 • Fax: 630-377-6495
©2007 System Sensor.
Product specifications subject to change without notice. Visit systemsensor.com for
current product information, including the latest version of this data sheet.
A05-0372-005 • 3/07 • #1782
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