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DP12

This is a low-current, polarized,two-position, bistable, distance relay with twelve change-over contacts; designed for switching DC&AC electrical circuits with frequency of 5-1500 Hz; manufactured in accordance to State standard 16121-86, State standard ВД 16121-86 and Бг0.425.001 ТУ.
Environmental ratings: cold temperate, cold and tropical (humid) climate.
Models for space, military and general industry purposes are available. 

How to order: Relay DP12  12   РС4.521.901    Бг0.425.001 ТУ.

Technical Parameters

Table 1

Model

Contact resistance, Ohm, not more

Coil resistance, I…IV, Ohm

Non revert voltage, V, not more

Operate voltage, V, not more

Rated voltage, V

РС4.521.901

2

420±63

10

18

РС4.521.903

0,25

РС4.521.902

0,25

75±11,25

4

8

РС4.521.904

2

РС4.521.905

2

420±63

10

17

РС4.521.906

0,25

Technical Specifications

Table 2

Operate time, ms, not more

12

Electrical insulation strength between current carrying circuits and between current carrying circuits and package (effective value), V:
 - at normal ambient temperature
 - in conditions of a higher humidity
 - at atmospheric under-pressure

 

500
300
180

Insulation resistance between current carrying circuits and between current carrying circuits and package, MOhm, not less:
 - at normal ambient temperature
 - in condition of a higher humidity
 - at atmospheric under-pressure

 

200
20
10

Weight, g

220

Operating conditions

Table 3

Ambient temperature, °С 

from minus 60 to plus 80

Atmospheric pressure, Pa, (mm of Mercury)

1,3·10-4 1,06·105  (from 5 to 800)

Relative humidity at  t ≤35°С,%

to 98

Shock resistance
 - single shocks
 

  - multiple shocks


30 shocks with acceleration to 1500 m/sec2 (150g)
4000 shocks with acceleration to 500 m/sec2 (50g) /
10 000 shocks with acceleration to 120m/sec2 (12g)

Vibration loads
 - over   5 to    50 Hz
 - over 50 to 1500 Hz


with amplitude 1,5 mm
with acceleration to100 m/sec2

Shock resistance

30 shocks with acceleration to 750 m/sec2 (75g)

Linear loads

to 250 m/sec2 (25g)

Switching Modes

Table 4

Models  

Switching range 

Form of load

Current type 

Switching frequency Hz, Not more  

Number of switching cycles

I, А 

U, В 

t=80°С  

РС4.521.901
РС4.521.904

0,8·10-1-2,0

6 - 34

Active

const

3,0

104 

0,25·104 

5,0-10,0

6 - 32

*

100
make switch

25
make switch

0,5–1,0

12 - 115

var
50-400 Hz

0,5

104

0,25·104

0,4·10-1-0,15

6 - 34

Inductive τ≤15 мс

const

3,0

0,15-1,0

1,0

0,5·10-1-0,5

12 - 115

Inductive cos φ≥0.3

var
50-400 Hz

1,0

0,5·104
104

0,125·104
0,25·104

Active

3,0

РС4.521.902

0,5·10-5-0,1·10-2

0,05 –10**

Active

const &var
50-400 Hz

3,0

104

0,25·104

0,1·10-2- 0,1·10-1

3 - 34

const

0,1·10-2-0,5·10-1

5 - 115

var
50-400 Hz

0,1·10-1- 0,1

10 - 34

const

РС4.521.903

0,5·10-5-0,1·10-2

0,05 –10**

Active

Const &var
50-400 Hz 

3,0

104

0,25·104

0,1·10-2-0,1·10-1

3 - 32

const

0,1·10-2-0,5·10-1

5 - 115

var
50-400 Hz

0,1·10-1-0,1

10 - 32

const

РС4.521.905

0,8·10-1-2,0

6 - 34

Active

const

****

104

0,25·104

5 - 10

*

100
make switch

25
make switch

0,5·10-1-1,0

12 - 115

var
50-400 Hz

****

104

0,25·104

0,1 - 0,5***

30 - 80

Inductive

var 1500 Hz

****

0,4·10-1-0,15

6 - 34

Inductive. τ≤15 мс

const

3,0

0,15-1,0

1,0

0,5·10-1-0,5

12-115

Inductive cos φ≥0.3

var 50-400 Hz

1,0

0,5·104 

0,125·104 

РС4.521.906

0,5·10-5-0,1·10-2

0,05- 10**

Active

Const & var
50-400 Hz

*****

104

0,25·104

0,1·10-2- 0,1·10-1

3 - 34

const

0,1·10-2-0,5·10-1

5 - 115

Var 50-400 Hz

0,1·10-1- 0,1

10 - 34

const

*     Make switch duration is 50 – 100 ms. Closed break switch is not allowed.
**    Load resistance shall be within the limits of 5-500 kOhm.
***   Toroidal transformer coil ОА32/50-10 cos φ=0,8.
****  Coil power supply is pulsing with pulse duration (0,25 ± 0,05)sec, relative pulse duration not less than 100.
***** Time of continuous live coil standing shall be 0,05-5 sec when relative pulse duration (cycling switches) shall be not less than 5.

 

Schematic Circuit Diagram

External and Mounting Dimensions

Terminal Position