Two Changeover Electromagnetic Direct Current Relay With

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Product Code : РК37

Product Description

Neutral electromagnetic relay

Hermetically sealed electromagnetic direct current relay with two changeover contacts.
Suitable for double current electric circuits switching.
Switches current from 10-6 А to 1 А.
Relay max mass 3.5 g.
Technical specifications RF4.500.477 TU
Minimum term of service : 25 years.

Technical data and operating factors

Power supply voltage : According to the table.1.
Switching modes : According to the table.2.
Contacts resistance:

≤0.5 Ohm - Au99.99.
≤1.4 Ohm - AgMgNi99.

Action time : max 3.5 msec
Bounce time at action : max 1.5 msec
Release time : max 2 msec
Bounce time at release : max 0.5 msec
Insulation resistance: between current-carrying circuits, between current-carrying circuits and body frame:

200 Mohm - under average climatic conditions;
20 Mohm - at max temperature;
10 Mohm - at high humidity;

Between coil and body frame : 5 Mohm - at high humidity.
Insulation strength : between conducting parts and body frame : between current-carrying circuits and body frame : 300 V- under average climatic conditions;

210 V - at high humidity;
180 V - at reduced air pressure;

Vibration stability : from 5 to 20 Hz with amplitude up to 3 mm;

from above 20 to 50 Hz with amplitude of 1.5 mm;
from above 50 to 1500 Hz with acceleration up to 150 m/s2 (15g);
from above 1500 to 3000 Hz with acceleration to 200 m/s2 (20g).

Impact resistance : to 75g.
Environmental temperature : from 213К (-60^oС) to 358К (+85^oС).
Relative humidity : to 98% at 308К ( +35^oС )
Air pressure : from 1.33·10-6 Pa ( 10-6 mm of mercury) to 305900 Pа (2300 mm of mercury)

Main Electrical Data

Design

Operating

voltage, V

Action voltage at 298К (+25^oС), V, max

Coil resistance at 298К (+25^oС), Оhm

RF4.500.477-00, -10,-15, -21

RF4.500.477-01, -11,-16, -22

RF4.500.477-02, -12,-17, -23

RF4.500.477-03, -13,-18,-24

RF4.500.477-04, -14,-19,-25

RF4.500.477-20.

27 + 7^{- 4}

18 + 2

12 + 4^{- 2}

6 + 2^{- 1}

4 + 0.5

5 + 0.5

19,3

13.0

7.9

4.1

2.7

3.6

1900 + 120 ^{- 380}

800 + 120

270 + 40

65 + 6.5^{- 10}

36 + 3.6

145 + 10

Switching modes
Switching range		Type of Load	Kind of Current	Switching frequency Hz, max	Number of switching cycles. max
Current, A	Voltage, V				At average temperature	Also at 358k (+85^oC)
0.01 - 0.25 0.25 - 0.5 0.5 - 1 - 0.15 0.01 - 0.25 0.25 - 0.5 0.01 - 0.15 10-6 - 10-3 10-3 - 0.05 10-3 - 0.06	6 - 30 6 - 30 6 - 30 6 - 120 eff. 6 - 30 6 - 30 6 - 120 eff. 0.05 - 10 3 - 36 6 - 36	act. act. act. act. τ≤15 ms τ≤15 ms cosφ≥0.3 act. act. τ≤15 ms	direct direct direct alternating 50-1100 Hz Direct direct alternating 50-1100 Hz direct direct direct	10 10 3 10 3 1 3 10 10 5	10⁵ 5·10⁴ 10⁴ 5·10⁴ 10⁴ 5·10³ 10⁴ 1.5·10⁵ 10⁴ 10⁴	5·10⁴ 2.5·10⁴ 5·10³ 2.5·10⁴ 5·10³ 2.5·10³ 5·10³ 7.5·10⁴ 5·10³ 5·10³