Relays are among the most important components used in automation. Such things as failure-free device connection, manufacturing processes, and (in the case of many installations e.g. lifts) human safety depend on their reliability. There are many well-known manufacturers of electromagnetic relays on the market, and TE Connectivity is definitely one of them. It is a global manufacturer of industrial components, with a wide portfolio of products, including connectors, passive and mechanical elements, cable accessories, sensors, antennas and tools. It also manufactures the RT2 relays, which is one of the most popular series of electromagnetic relays in the world.
The RT2 series comprises miniature relays with PCB leads with 5 mm pitch. It is a truly diverse product group, as it includes monostable and bistable relays (1 or 2 coils), with DC coils (from 5 V to 110 V) or AC coils (from 24 V to the standard 230 V). Furthermore, the TME catalogue offers these relays in two versions of contact configuration, DPDT (two changeover contacts) or DPST-NO (two make contacts, normally open circuit). Both configurations have a maximum contact current of 8 A and can be used in circuits with voltage up to 300 V DC and 400 V AC (depending on the model). The relays feature 5 kV dielectric isolation (between the coil and the contacts), which translates into their high resistance to pulses occurring in machines with an inductive load, e.g motors. Thanks to all those characteristics, the RT2 elements can be used in many control systems (not only in industry).
| Specification | |
|---|---|
| Type of relay: | electromagnetic |
| Contact configuration*: | DPST or DPDT |
| Number of pins*: | 8 or 9 |
| Rated coil voltage*: | 24…230 V AC or 5…110 V |
| Max. contact current: | 8 A |
| AC contact rating @R: | 8 A / 250 V AC |
| DC contact rating @R: | 8 A / 30 V DC |
| Switching voltage*: | max. 2230 V or 300 V DC, max. 400 V AC |
| Relay variant: | miniature |
| Mounting method: | PCB |
| Coil resistance*: | 42…32500 kΩ |
| Min. coil voltage*: | 3.5…172.5 V AC |
| Coil power consumption*: | 400…650 mW or 750…760 mVA |
| Operate time*: | 7 ms or 8 ms |
| Release time: | 6 ms |
| Lead pitch: | 5 mm |
| Dimensions: | 29x12.7x15.7 mm |
| IP rating: | IP40 |
| Operating temperature*: | -40-70°C or -40-85°C |
* depending on the model
