240 Series DIN Panel Meters

10

Moving Iron A.C. Ammeters and Voltmeters

Designed to measure A.C. current or voltage, these meters indicate true r.m.s. values

and are substantially independent of system waveform. Scales are calibrated down

to 20%, and ammeters can have overload scales x2, x3, x5 or x6 for motor start duty.

Ammeters can be supplied for use with -/1A or -/5A current transformers, whilst

voltmeters can be scaled for use with voltage transformers. Heavy damping is

available as an option. Meters can be used to measure D.C. at reduced accuracy.

Specification – Short Scale

Accuracy:

Class 1.5

Frequency:

50 or 60Hz, (400Hz on request)

Burden at 50Hz:

Ammeters: 0.5VA

Voltmeters: Up to 4.5VA maximum

Ratings:

Ammeters: 0.5A to 100A A.C. direct connected (40A for

242-75A and 246-07A). Maximum system voltage

720V A.C. Low load / high middle maximum 10A

Voltmeters: 6V to 600V

Product Codes – Short Scale

Bezel Size mm

48

72

96

144

Scale length mm

42

65

94

145

Product Codes

A.C. ammeter

242-75A

243-02A

244-02A

246-07A

x2 overload ammeter

242-752

243-022

244-022

246-072

x3 overload ammeter

242-753

243-023

244-023

246-073

x5 overload ammeter

242-755

243-025

244-025

246-075

x6 overload ammeter

242-756

243-026

244-026

246-076

Low load ammeter

–

243-02H

244-02H

–

A.C. voltmeter

242-75V

243-02V

244-02V

246-07V

Low middle voltmeter

–

243-02M

244-02M

–

Specification – Long Scale

Accuracy:

Class 1.5

Frequency:

50 or 60Hz, (400Hz on request)

Burden at 50Hz:

Ammeters: 1.5VA

Voltmeters: 4.5VA maximum

Ratings:

Ammeters: 0.5A to 25A A.C. direct connected

Maximum system voltage 720V A.C. Low load / high

middle (maximum 10A)

Voltmeters: 6V to 600V A.C.

Product Codes – Long Scale

Bezel Size mm

48

72

96

144

Scale length mm

72

112

150

230

Product Codes

Ammeter

242-03A

243-03A

244-03A

246-03A

x2 overload ammeters

242-032

243-032

244-032

246-032

x3 overload ammeters

242-033

243-033

244-033

246-034

x5 overload ammeters

242-035

243-035

244-035

246-035

x6 overload ammeters

242-036

243-036

244-036

246-036

Low load ammeters

–

243-03H

244-03H

–

Voltmeter

242-03V

243-03V

244-03V

246-03V

Connections

A.C. Ammeter

A.C. Voltmeter