Electromagnetic relay
RМ-20 series
ТУ16-523.592-80
DC relays are designed for switching of DC circuits of 320 V and AC circuits of 380 V with frequency from 50 to 400 Hz.
Relays can be used in various environmental conditions and are highly reliable.
Detailed information
Main features
| NO/NC contacts | 1/1 |
| Rated current of contacts, А | 5 |
| Switching frequency per hour: for RМ-21А and RМ-22А | 1200 |
| for RМ-21Б and R М-22Б | 20 |
| Operate time at control voltage 0.85 Uн in warm state, not more, s | 0.1 |
| Operate time at control voltage 0.85-1.05 Uн in cold state, not more, s | 0.08 |
| Release time, not more, s | 0.01 |
| Electrical durability depending on the duty, cycles | from 2.5х10 4 to 2х10 5 |
| Overall dimensions, mm | 54х57х65 |
| Weight, not more, kg | 0.33 |
| Ambient temperature, °С | from –40 to +55 |
| Relative humidity at 35ºС, not more, % | 98 |
Technical Data
| Modification | Duty | Rated control voltage, DC, Uн, V | Resistance of windings, Ω, not less | Pickup voltage, V | Dropout voltage, V |
| RМ-21А | continuous, intermittent continuous, intermittent and temporary | 24 | 55 | 13.44 | 1.2-9.6 |
| RМ-22А | 48 | 230 | 26.88 | 2.4-19.2 | |
| RМ-21Б | intermittent | 24 | 60 | 16.32 | 4.8-9.6 |
| RМ-22Б | 48 | 250 | 32.64 | 9.6-19.2 |
Implementator
RECONT Engineering Complex
RECONT Engineering Complex manufactures low voltage devices: contactors and relays. This is one of the basic business areas for CHEAZ.
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