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 R14/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 multivoltage 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 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-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 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 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) 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