MAE-3 Series

Motorised Three-Phase
Variable Transformers with Digital Metering
& Input Circuit Breaker Protection
10 to 200 Amps

MAE-3 Series - Motorised
Three Phase Variable Transformers

Comprehensive ranges of enclosed motor-driven three-phase variable transformers in ratings from 10 to 200 Amps.

Supplied as standard in IP20 (NEMA 1 Style) enclosures on castors, with digital voltmeter and ammeter, up/down buttons for output selection, and input circuit breaker protection.

Models are available for 400V (HB), 208V (LB) and 480V (HB-480) nominal site voltages.

Uncased MAE-3 models, without metering and input breakers, are available to special order.

To learn more please check out the listings below –

Proven & Endurable Design

The basic variable auto-transformer consists of a copper winding on a toroidal core of laminated, grain-oriented, silicon steel. A carbon brush, connected to an output terminal, is rotated over the length of a precision-ground, commutator track to tap off voltage at any turn from zero volts to the maximum output voltage of the winding.

Unlike a standard fixed ratio transformer, Ashley-Edison (UK) variable transformers are designed to provide an infinitely variable step-less output voltage that can be adjusted from 0 to 117% of the transformer’s nominal input voltage.

 

Design Features

High Efficiency & Excellent Regulation

In contrast to current hungry rheostats and other resistive type voltage controllers, Ashley-Edison (UK) variable auto-transformers have an extremely small power loss, delivering efficiency of 98% or better. Within the transformer ratings, our variable transformers deliver, from no-load to full-load current, negligible variation in output voltage.

Distortion Less Voltage Control

Due to the superiority of the core design and quality of the steel grade utilized, Ashley-Edison (UK) Variable Transformers provide a facsimile of the input waveform with negligible distortion – an essential feature required by many electronic applications.

Low Operating Torque

Due to the ultra-smooth commutator surface, correct and constant contact pressure of the brush on the commutator, combined with the firm positioning of the coil and internal components ensures all Ashley-Edison(UK) Variable Transformers deliver a low operating torque.

Trouble-Free Mechanical Construction for Long Life

All Ashley-Edison (UK) variable transformers are designed for heavy-duty and trouble-free operation. Built to exacting mechanical tolerances, using the finest materials available, the quality of design and build ensures minimal maintenance requirements and enhanced design life.

Negligible Maintenance

When operated in accordance with the operating instructions, the only component that may require periodic inspection and occasional replacement are the brushes. As the brushes are made of a special highly endurable carbon and the design ensures proper contact with the commutator at all times, the need for replacement is infrequent.

Straight forward Install & Use

Whether for bench use or panel mounting, installation, mounting, and use is designed to be easy. Terminals are easily accessible – screw or lug. Output, on manually operated variable transformers, is controlled by either clockwise or anti-clockwise knob rotation.

International Standards Compliance & CE Certification

All Ashley-Edison (UK) variable transformers are designed and manufactured to comply with all relevant International Standards and appropriate European Union CE Directives.

AmpsAE ModelNominal
Volts AC
kVA @ max
Output Volts
Output
Volts
Dimensions
W x H x D mm
Weight
(Kgs)
10 AmpsMAE-3210-HB-DM-CB380V
400V
415V
7.7
8.1
8.4
0 to 445V
0 to 468V
0 to 485V
500 x 800 x 600120
15 AmpsMAE-3215-HB-DM-CB380V
400V
415V
11.6
12.2
12.6
0 to 445V
0 to 468V
0 to 485V
500 x 800 x 600130
20 AmpsMAE-3220-HB-DM-CB380V
400V
415V
15.4
16.2
16.8
0 to 445V
0 to 468V
0 to 485V
500 x 800 x 600135
25 AmpsMAE-3225-HB-DM-CB380V
400V
415V
19.3
20.3
21.0
0 to 445V
0 to 468V
0 to 485V
500 x 800 x 600145
30 AmpsMAE-3230-HB-DM-CB380V
400V
415V
23.1
24.3
25.2
0 to 445V
0 to 468V
0 to 485V
500 x 800 x 600150
35 AmpsMAE-3235-HB-DM-CB380V
400V
415V
27.0
28.4
29.4
0 to 445V
0 to 468V
0 to 485V
600 x 880 x 700170
40 AmpsMAE-3240-HB-DM-CB380V
400V
415V
30.8
32.4
33.5
0 to 445V
0 to 468V
0 to 485V
600 x 880 x 700190
50 AmpsMAE-32252-HB-DM-CB380V
400V
415V
38.6
40.6
42.0
0 to 445V
0 to 468V
0 to 485V
600 x 1400 x 600270
60 AmpsMAE-32302-HB-DM-CB380V
400V
415V
46.3
48.6
50.4
0 to 445V
0 to 468V
0 to 485V
600 x 1400 x 600280
70 AmpsMAE-32352-HB-DM-CB380V
400V
415V
54.0
56.7
58.8
0 to 445V
0 to 468V
0 to 485V
600 x 1350 x 700300
80 AmpsMAE-32402-HB-DM-CB380V
400V
415V
61.6
64.8
67.2
0 to 445V
0 to 468V
0 to 485V
600 x 1350 x 700320
105 AmpsMAE-32353-HB-DM-CB380V
400V
415V
80.9
85.1
88.2
0 to 445V
0 to 468V
0 to 485V
750 x 1400 x 1500500
120 AmpsMAE-32403-HB-DM-CB380V
400V
415V
92.5
97.2
100.8
0 to 445V
0 to 468V
0 to 485V
750 x 1400 x 1500540
150 AmpsMAE-32503-HB-DM-CB380V
400V
415V
115.6
121.6
126.0
0 to 445V
0 to 468V
0 to 485V
750 x 1400 x 1500600
200 AmpsMAE-32405-HB-DM-CB380V
400V
415V
154.4
162.4
168.0
0 to 445V
0 to 468V
0 to 485V
750 x 1700 x 1600950
AmpsAE ModelNominal
Volts AC
kVA @ max
Output Volts
Output
Volts
Dimensions
W x H x D mm
Weight
(Kgs)
10 AmpsMAE-3110-LB-DM-CB190V
200V
208V
3.8
4.0
4.2
0 to 222V
0 to 234V
0 to 243V
400 x 750 x 40053
15 AmpsMAE-3115-LB-DM-CB190V
200V
208V
5.7
6.0
6.3
0 to 222V
0 to 234V
0 to 243V
500 x 750 x 50073
20 AmpsMAE-3120-LB-DM-CB190V
200V
208V
7.6
8.1
8.4
0 to 222V
0 to 234V
0 to 243V
500 x 850 x 50079
25 AmpsMAE-3125-LB-DM-CB190V
200V
208V
9.6
10.1
10.5
0 to 222V
0 to 234V
0 to 243V
500 x 850 x 60085
30 AmpsMAE-3130-LB-DM-CB190V
200V
208V
11.5
12.1
12.6
0 to 222V
0 to 234V
0 to 243V
500 x 850 x 600125
35 AmpsMAE-3135-LB-DM-CB190V
200V
208V
13.4
14.1
14.7
0 to 222V
0 to 234V
0 to 243V
500 x 850 x 600135
40 AmpsMAE-3140-LB-DM-CB190V
200V
208V
15.3
16.2
16.8
0 to 222V
0 to 234V
0 to 243V
500 x 850 x 600145
50 AmpsMAE-3150-LB-DM-CB190V
200V
208V
19.2
20.2
21.0
0 to 222V
0 to 234V
0 to 243V
600 x 900 x 700170
60 AmpsMAE-31302-LB-DM-CB190V
200V
208V
23.0
24.3
25.2
0 to 222V
0 to 234V
0 to 243V
600 x 1300 x 600230
70 AmpsMAE-31352-LB-DM-CB190V
200V
208V
26.9
28.2
29.4
0 to 222V
0 to 234V
0 to 243V
600 x 1300 x 600240
80 AmpsMAE-31402-LB-DM-CB190V
200V
208V
30.7
32.4
33.6
0 to 222V
0 to 234V
0 to 243V
600 x 1450 x 600250
105 AmpsMAE-31353-LB-DM-CB190V
200V
208V
40.3
42.5
44.2
0 to 222V
0 to 234V
0 to 243V
600 x 1350 x 700300
120 AmpsMAE-31403-LB-DM-CB190V
200V
208V
46.1
48.6
50.5
0 to 222V
0 to 234V
0 to 243V
600 x 1400 x 1300450
AmpsAE ModelNominal
Volts AC
kVA @ max
Output Volts
Output
Volts
Dimensions
W x H x D mm
Weight
(Kgs)
10 AmpsMAE-3210-HB-DM-CB-480440V
460V
480V
8.9
9.3
9.7
0 to 515V
0 to 538V
0 to 562V
500 x 850 x 50071
15 AmpsMAE-3215-HB-DM-CB-480440V
460V
480V
13.4
14.0
14.6
0 to 515V
0 to 538V
0 to 562V
500 x 850 x 50076
20 AmpsMAE-3220-HB-DM-CB-480440V
460V
480V
17.8
18.6
19.5
0 to 515V
0 to 538V
0 to 562V
500 x 850 x 50092
25 AmpsMAE-3225-HB-DM-CB-480440V
460V
480V
22.3
23.3
24.3
0 to 515V
0 to 538V
0 to 562V
500 x 850 x 500104
30 AmpsMAE-3230-HB-DM-CB-480440V
460V
480V
26.8
28.0
29.2
0 to 515V
0 to 538V
0 to 562V
500 x 850 x 500111
35 AmpsMAE-3235-HB-DM-CB-480440V
460V
480V
31.2
32.6
34.1
0 to 515V
0 to 538V
0 to 562V
500 x 850 x 500114
40 AmpsMAE-3240-HB-DM-CB-480440V
460V
480V
35.7
37.3
38.9
0 to 515V
0 to 538V
0 to 562V
600 x 900 x 700180
50 AmpsMAE-32252-HB-DM-CB-480440V
460V
480V
44.6
46.6
48.7
0 to 515V
0 to 538V
0 to 562V
600 x 1300 x 600206
60 AmpsMAE-32302-HB-DM-CB-480440V
460V
480V
53.5
55.9
38.4
0 to 515V
0 to 538V
0 to 562V
600 x 1350 x 600226
70 AmpsMAE-32352-HB-DM-CB-480440V
460V
480V
62.4
65.2
68.1
0 to 515V
0 to 538V
0 to 562V
600 x 1350 x 600235
80 AmpsMAE-32402-HB-DM-CB-480440V
460V
480V
71.4
74.5
77.9
0 to 515V
0 to 538V
0 to 562V
600 x 1350 x 700300
105 AmpsMAE-32353-HB-DM-CB-480440V
460V
480V
93.7
97.8
102.2
0 to 515V
0 to 538V
0 to 562V
750 x 1400 x 1500430
120 AmpsMAE-32403-HB-DM-CB-480440V
460V
480V
107.0
111.8
116.8
0 to 515V
0 to 538V
0 to 562V
750 x 1400 x 1500500
150 AmpsMAE-32503-HB-DM-CB-480440V
460V
480V
133.8
139.8
146.0
0 to 515V
0 to 538V
0 to 562V
750 x 1400 x 1500550

Input Voltage:Nominal Voltage +6%
Output Voltage:Continuously variable from 0 to 117% of the input voltage
Frequency:47 to 65Hz
Power Factor:The Power Factor has no effect on performance providing the variable transformer is being used within its rated capacity
Efficiency:≥98%
Surge Rating:4 x max. current rating for 1 second
3 x max. current rating for 3 seconds
1.5 x max. current rating for 15 seconds
Environmental:Temperature range -15 to 45°C. Derate by 2% for each additional °C up to a max of 60°C
Suitable for indoor tropical use up to 95% RH (non-condensing)
Maximum altitude 1000m. Derate by 2.5% for each additional 500m
Construction:Enclosures to IP20 (NEMA 1 Style) BS EN5490 / IEV 60529
Standard Features:Input Circuit Breaker
Input & Output Terminal Block
Digital Voltmeter & Ammeter with Phase Selector Switch
Freestanding Enclosure on Castors
Add-On Optional Accessories:Output Circuit Breaker – OCB
Industrial Output Sockets – IOS
Standards Compliance:BS EN 61558-1:2005 + AI:2009 & BS EN 61558-2-13:2009
CE Conformity:CE Marked – compliant with European Union Directive 2006/95/EC (Low Voltage Directive)
RoHS Compliance:Fully RoHS Compliant – complaint with European Union Directive 2011/65/EC (RoHS Directive)
Standard Warranty:1 Year / 12 months from date of supply

Sales & Support

Sales & Technical Data Sheet

– MAE-3x HB-DM-CB (380-415V) Models 

Sales & Technical Data Sheet

– MAE-3x LB-DM-CB (190-208V) Models 

Sales & Technical Data Sheet

– MAE-3x HB-DM-CB-480 (440-480V) Models 

Operator / User Manual

Operator Manual with sections on installation, and maintenance.

 
CE Certification 

MAE-3 Series Three Phase Motorised Variable Transformers comply with the relevant European Union (EU) health, safety, and environmental protection directives and regulations and are duly CE marked.

Ashley-Edison (UK) Declaration

Low Voltage Directive – 2006/95/EC

Ashley-Edison (UK) Declaration

RoHS Directive – 2011/65/EC

Independent 3rd Party Verification Certificate

Low Voltage Directive 2006/95/EC

 

If you do not find the Motorized Variable Transformer that meets your application’s exact needs, please contact us with your specific detailed requirements.