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Electromagnetic Direct Current Relay

Electromagnetic Direct Current Relay
Electromagnetic Direct Current Relay
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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 (-60oС) to 358К (+85oС).
  • Relative humidity : to 98% at 308К ( +35oС )
  • 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 (+25oС), V, max

Coil resistance at 298К (+25oС), 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 (+85oC)

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


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