> SIEMENS>CONTROL AND CONTACTORS>Function relays

Viewed products

Function relays

Function relays are specialized electromechanical or static devices designed to monitor and protect electrical systems by detecting anomalies such as overvoltage, undervoltage, phase loss, phase sequence errors, or frequency deviations. These relays typically feature adjustable thresholds and time delays, allowing precise parameterization of mon...

Function relays are specialized electromechanical or static devices designed to monitor and protect electrical systems by detecting anomalies such as overvoltage, undervoltage, phase loss, phase sequence errors, or frequency deviations. These relays typically feature adjustable thresholds and time delays, allowing precise parameterization of monitoring functions. They are available in various form factors, including modular DIN-rail mountable units for control cabinets, with rated operational voltages up to 690 V AC and current ratings depending on the application. Common types include voltage monitoring relays, current monitoring relays, and frequency relays, often equipped with multiple output contacts (e.g., 2 CO or 4 CO) for signaling and control.

Function relays are widely deployed in industrial automation, power distribution, and building management systems. They are essential in motor control centers (MCCs), generator sets, UPS systems, and HVAC installations to ensure safe operation under fluctuating grid conditions. In manufacturing plants, they protect sensitive equipment like PLCs, drives, and servo systems from power quality issues. They also find use in renewable energy systems, such as solar inverters and wind turbines, where grid stability is critical.

Key subcategories within function relays include voltage monitoring relays (e.g., Siemens 3UG4 series), current monitoring relays (e.g., 3RR2 series), and frequency relays (e.g., 7RW series). The Siemens 3UG4621-1AW30 is a popular voltage monitoring relay for 3-phase networks, featuring adjustable thresholds and a compact housing. The 3RR2241-1FA30 is a current monitoring relay with a measuring range of 0.1–10 A. Article codes often follow patterns like 3UGxxxx-xAx30 or 3RRxxxx-xFx30, where the digits indicate functionality and accessories.

Partnering with Electric Automation Network ensures access to genuine Siemens function relays with real-time pricing and global express shipping. Our team of specialized engineers provides technical support for relay selection, parameterization, and integration into existing systems. We offer detailed documentation, including wiring diagrams and datasheets, to streamline your project. Whether for a new installation or retrofit, we deliver the right components with fast, reliable logistics.

More
Number of products per page:
Order:
Manufacturer Code Reference Catalog Number Description Delivery Price

3RT1916-2BE01

3RT1916-2BE01

-

OFF delay device, 24 V DC for contactors 3RT10, Size S00 ... S3 and contactor relays 3RH with DC operation ! Phased-out product! Successor is SIRIUS 3RT2

 		3 View Availability View Price

3RT1926-2CG11

3RT1926-2CG11

-

Electronic two-wire timing relay with semiconductor output, time range 0.05 ... 1 s, 24 ... 66 V AC/DC, ON delay, with varistor for mounting onto contactors Size S0 ... S3 ! Phased-out product! Successor is SIRIUS 3RT2

 		3 View Availability View Price

3RT1926-2CG21

3RT1926-2CG21

-

Electronic two-wire timing relay with semiconductor output, time range 0.5 ... 10 s, 24 ... 66 V AC/DC, ON delay, with varistor for mounting onto contactors Size S0 ... S3 ! Phased-out product! Successor is SIRIUS 3RT2

 		3 View Availability View Price

3RT1926-2CG31

3RT1926-2CG31

-

Electronic two-wire timing relay with semiconductor output, time range 5 ... 100 s, 24 ... 66 V AC/DC, ON delay, with varistor for mounting onto contactors Size S0 ... S3 ! Phased-out product! Successor is SIRIUS 3RT2

 		0 Stock Available View Price

3RT1926-2CH21

3RT1926-2CH21

-

Electronic two-wire timing relay with semiconductor output, time range 0.5 ... 10 s, 90 ... 240 V AC / DC, ON delay, with varistor for mounting onto contactors Size S0 ... S3 ! Phased-out product! Successor is SIRIUS 3RT2

 		3 View Availability View Price

3RT1926-2CH31

3RT1926-2CH31

-

Electronic two-wire timing relay with semiconductor output, time range 5 ... 100 s, 90 ... 240 V AC / DC, ON delay, with varistor for mounting onto contactors Size S0 ... S3 ! Phased-out product! Successor is SIRIUS 3RT2

 		3 View Availability View Price

3RT1926-2DG11

3RT1926-2DG11

-

electronic timing relay with semiconductor output, time range 0.05 ... 1, 24 ... 66 V AC/DC, OFF delay, with varistor with screw terminal for contactors size S0 ... S3 ! Phased-out product! Successor is SIRIUS 3RT2

 		3 View Availability View Price

3RT1926-2CH11

3RT1926-2CH11

-

Electronic two-wire timing relay with semiconductor output, time range 0.05 ... 1 s, 90 ... 240 V AC / DC, ON delay, with varistor for mounting onto contactors Size S0 ... S3 ! Phased-out product! Successor is SIRIUS 3RT2

 		3 View Availability View Price

3RT1926-2DG31

3RT1926-2DG31

-

electronic timing relay with semiconductor output, time range 5 ... 100 s, 24 ... 66 V AC/DC, OFF delay, with varistor with screw terminal for contactors size S0 ... S3 ! Phased-out product! Successor is SIRIUS 3RT2

 		3 View Availability View Price

3RT1926-2DG21

3RT1926-2DG21

-

electronic timing relay with semiconductor output, time range 0.5 ... 10 s, 24 ... 66 V AC/DC, OFF delay, with varistor with screw terminal for contactors size S0 ... S3 ! Phased-out product! Successor is SIRIUS 3RT2

 		3 View Availability View Price

3RT1926-2DH11

3RT1926-2DH11

-

electronic timing relay with semiconductor output, time range 0.05 ... 1 s, 90 ... 240 V AC / DC, OFF delay, with varistor with screw terminal for contactors size S0 ... S3 ! Phased-out product! Successor is SIRIUS 3RT2

 		3 View Availability View Price

3RT1926-2DH21

3RT1926-2DH21

-

electronic timing relay with semiconductor output, time range 0.5 ... 10 s, 90 ... 240 V AC / DC, OFF delay, with varistor with screw terminal for contactors size S0 ... S3 ! Phased-out product! Successor is SIRIUS 3RT2

 		3 View Availability View Price

3RT1926-2EC21

3RT1926-2EC21

-

solid-state time-delayed front-side auxiliary switch Time range 0.5...10 s, 100 ... 127 V AC, 1 NO contact, 1 NC contact ON delay, for 3RT1

SIRIUS Auxiliary contact with electronic delay of a range of 0.5 s... 10 s AC 100...127V, 1NA+1NC, excitation delay, for mounting on S0 size contactors... S3.

 		3 View Availability View Price

3RT1926-2EC31

3RT1926-2EC31

-

solid-state time-delayed front-side auxiliary switch Time range 5...100 s, 100 ... 127 V AC, 1 NO contact, 1 NC contact ON delay, for 3RT1

SIRIUS Auxiliary contact with electronic delay of a range 5 s... 100 s, AC 100...127V, 1NA+1NC, excitation delay, for mounting on contactors size S0... S3. Manufactured to order. Non-Cancelable Non-Returnable.

 		3 View Availability View Price

3RT1926-2EC11

3RT1926-2EC11

-

solid-state time-delayed front-side auxiliary switch Time range 0.05...1 s, 100 ... 127 V AC, 1 NO contact, 1 NC contact ON delay, for 3RT1

SIRIUS Auxiliary contact with electronic delay of a range 0.05 s... 1 s, AC 100...127V, 1NA+1NC, excitation delay, for mounting on contactors size S0... S3. Manufactured to order. Non-Cancelable Non-Returnable.

 		3 View Availability View Price

3RT1926-2ED11

3RT1926-2ED11

-

solid-state time-delayed front-side auxiliary switch Time range 0.05...1 s, 200 ... 240 V AC, 1 NO contact, 1 NC contact ON delay, for 3RT1

 		3 View Availability View Price

3RT1926-2ED21

3RT1926-2ED21

-

solid-state time-delayed front-side auxiliary switch Time range 0.5...10 s, 200 ... 240 V AC, 1 NO contact, 1 NC contact ON delay, for 3RT1

 		3 View Availability View Price

3RT1926-2DH31

3RT1926-2DH31

-

electronic timing relay with semiconductor output, time range 5 ... 100 s, 90 ... 240 V AC / DC, OFF delay, with varistor with screw terminal for contactors size S0 ... S3 ! Phased-out product! Successor is SIRIUS 3RT2

 		3 View Availability View Price

3RT1926-2EJ11

3RT1926-2EJ11

-

solid-state time-delayed front-side auxiliary switch Time range 0.05...1 s, 24 V AC/DC, 1 NO contact, 1 NC contact ON delay, for 3RT1

SIRIUS Auxiliary contact with electronic delay of a range 0.05 s... 1 s, AC / DC 24V, 1NA + 1NC, excitation delay, for mounting on contactors size S0... S3. Manufactured to order. Non-Cancelable Non-Returnable.

 		3 View Availability View Price

3RT1926-2ED31

3RT1926-2ED31

-

solid-state time-delayed front-side auxiliary switch Time range 5...100 s, 200 ... 240 V AC, 1 NO contact, 1 NC contact ON delay, for 3RT1

SIRIUS Auxiliary contact with electronic delay of a range 5 s... 100 s, AC 200...240V, 1NA+1NC, excitation delay, for mounting on contactors size S0... S3. Manufactured to order. Non-Cancelable Non-Returnable.

 		3 View Availability View Price

3RT1926-2EJ31

3RT1926-2EJ31

-

solid-state time-delayed front-side auxiliary switch Time range 5...100 s, 24 V AC/DC, 1 NO contact, 1 NC contact ON delay, for 3RT1

 		3 View Availability View Price

3RT1926-2FJ11

3RT1926-2FJ11

-

solid-state time-delayed front-side auxiliary switch Time range 0.05...1 s, 24 V AC/DC, 1 NO contact, 1 NC contact OFF delay, without control signal for 3RT1

 		3 View Availability View Price

3RT1926-2FJ31

3RT1926-2FJ31

-

solid-state time-delayed front-side auxiliary switch Time range 5...100 s, 24 V AC/DC, 1 NO contact, 1 NC contact OFF delay, without control signal for 3RT1

 		3 View Availability View Price

3RT1926-2FJ21

3RT1926-2FJ21

-

solid-state time-delayed front-side auxiliary switch Time range 0.5...10 s, 24 V AC/DC, 1 NO contact, 1 NC contact OFF delay, without control signal for 3RT1

SIRIUS Auxiliary contact with electronic delay of a range of 0.5 s... 10 s, AC/DC 24V, 1NA+1NC, deexcitation delay, for mounting on S0 size contactors... S3.

 		3 View Availability View Price

3RT1926-2EJ21

3RT1926-2EJ21

-

solid-state time-delayed front-side auxiliary switch Time range 0.5...10 s, 24 V AC/DC, 1 NO contact, 1 NC contact ON delay, for 3RT1

 		3 View Availability View Price

3RT1926-2FK11

3RT1926-2FK11

-

solid-state time-delayed front-side auxiliary switch Time range 0.05...1 s, 100 ... 127 V AC / DC, 1 NO contact, 1 NC contact OFF delay, without control signal for 3RT1

 		3 View Availability View Price

3RT1926-2FK31

3RT1926-2FK31

-

solid-state time-delayed front-side auxiliary switch Time range 5...100 s, 100 ... 127 V AC / DC, 1 NO contact, 1 NC contact OFF delay, without control signal for 3RT1

 		3 View Availability View Price

3RT1926-2FK21

3RT1926-2FK21

-

solid-state time-delayed front-side auxiliary switch Time range 0.5...10 s, 100 ... 127 V AC / DC, 1 NO contact, 1 NC contact OFF delay, without control signal for 3RT1

 		3 View Availability View Price

3RT1926-2FL21

3RT1926-2FL21

-

solid-state time-delayed front-side auxiliary switch Time range 0.5...10 s, 200 ... 240 V AC / DC, 1 NO contact, 1 NC contact OFF delay, without control signal for 3RT1

 		3 View Availability View Price

3RT1926-2FL31

3RT1926-2FL31

-

solid-state time-delayed front-side auxiliary switch Time range 5...100 s, 200 ... 240 V AC / DC, 1 NO contact, 1 NC contact OFF delay, without control signal for 3RT1

 		3 View Availability View Price

Latest Customer Reviews

All ratings we receive from the items we offer are real and verified. A small gesture, but a lot of value. That's why we thank you for that minute you invest in leaving us your opinion and qualification about the products, because it helps us to continue improving and to offer you a service of even higher quality.

products sitemap

Newsletter
Follow us
My account

Cookie policy · Cookie settings