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ST2R4 • Speed controller

  • Electronic speed controllers
  • 400V
  • Till 11A
  • IP54

2-speed transformer controller with built-in clock in accordance with IDA-C3

Application

  • With the built-in clock these controllers can work completely autonomously. Two optimal motor speeds can be selected. These high and low speed operation time range can de programmed in the clock together with a range when the motor has to stop. This permitting a energy save.
  • They are fitted out with TK contacts for thermal motor protection and run/stop contacts for external or remote starting/stop.

Composition

  • Voltage: 400 Vac – 50/60Hz – from 1.5 to 11A
  • Enclosure: sheet steel RAL 7032, polyester powder coating IP54
  • Several voltage ranges possible
  • Current fuse
  • 230 Vac unregulated output
  • Motor protection, by connecting thermal contacts TK of the motor
  • Alarm output (230V/1A) in the event of motor overheating
  • 2 run/stop contacts (RT-normally closed, FS-normally open) for remote control
  • Ready mounted cable glands
  • Maximal ambient temperature: 35°C

Dimensions

 

A [mm]

B [mm]

C [mm]

D [mm]

E [mm]

Wgt net [kg]

Wgt brut [kg]

M

Imax [A]

F(A)

ST2R4-15L55

300

325

150

255

255

12,15

12,61

P

1,5

2,5

ST2R4-25L55

300

325

150

255

255

13,23

13,69

P

2,5

4,0

ST2R4-40L55

300

425

200

255

255

19,98

20,57

P

4,0

5,0

ST2R4-60L55

400

430

200

355

355

25,02

25,80

P

6,0

8,0

ST2R4-80L55

400

430

200

355

355

29,67

30,45

P

8,0

12,5

ST2R4110L55

400

430

200

355

355

36,27

37,05

A

11

(6x32mm)16,0

Wiring diagram

Notes

L = Main supply 230Vac - 50/60 Hz

L1 = Unregulated output

N = Neutral

U = Regulated output to motor

Al = output to alarm

TK = Thermisch contact

RT = Room thermostat (normally closed)

FS = Frost protection (normally open)

Pe = Earthing

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