6

TRE and TRE..TK Series single-phase

transformer controllers

Nominal data

Type

V

Hz

A

kg

o

C

mm

mm

mm

mm

mm

TRE2

230

50/60

2.0

No

3.5

40

IP54

200

150

150

144 x 98

5.5

TRE4

230

50/60

4.0

No

6.0

40

IP54

200

150

150

144 x 98

5.5

TRE7.5

230

50/60

7.5

No

7.5

40

IP54

200

150

150

144 x 98

5.5

TRE2TK

230

50/60

2.0

Yes

3.5

40

IP54

200

150

150

144 x 98

5.5

TRE4TK

230

50/60

4.0

Yes

6.0

40

IP54

200

150

150

144 x 98

5.5

TRE7.5TK

230

50/60

7.5

Yes

7.5

40

IP54

200

150

150

144 x 98

5.5

Subject to alterations

Please contact us for higher rated controllers.

Wiring diagram

General remarks: The TRE and TRE..TK series of transformer controllers for single phase

AC fans and motors, provide energy saving speed control without the creation of addi-

tional motor noise which you get with most electronic controllers. Vacuum impregnation

further reduces electrical noise from the transformers. Available for total load current of

up to 7.5 Amps, a rotary switch selects one of 5 different voltages.

The standard product has a simple fan/motor connection without provision for thermal

overload protection. Use of a separate motor protection device is recommended.

The TK version has connections for motor thermal overload protection. When connected,

an overheat condition will cause the motor supply to trip off. It can only be restarted after

the motor has cooled and either power disconnected from the controller or the selector

switch cycled through the off setting.