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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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