The WhisperPower Autotransformer is used when a split-phase (single phase three wire) system or a single outlet different to the generator or inverter outletvoltage is required. In this way a nominal output of 240 VAC may be converted to split-phase dual 120 VAC or single 120 VAC / 60 Hz as used in USA and Canada.

Step-up, step-down or split-phase
Intrinsic property of load balancing
Low weight, low noise toroidal transformer coil
Controlled forced air cooling only at high temperatures
Current and temperature protection
Product available in two bypass current ratings
May be connected in parallel for doubling power rating
Available in two pass-through 240 V currents, 32 A and 100 A

By using the transformer, power consumption difference on each phase is balanced to provide maximum power for each voltage outlet. The autotransformer may be also connected in a configuration to generate 240 V or balanced split-phase from a 120 VAC input voltage.

Product specifications

ARTICLE NUMBER
61224100	Autotransformer 120/240 VAC \| 100 A

MAIN SPECIFICATIONS
Circuit breaker protection	100 A double-pole
Max. feed-through current	100 A @ 240 V
In/ Output voltage	120 V / 240 V
In/ Output Frequency	60 Hz only
Max. Neutral Current	30 A continuous
Soft-start provision	No
Cooling	Temperature controlled forced air cooling
Audible Noise	< 53 dB(A) max.
Transformer Temperature Class	Class F (100K)
Transformer Insulation Class	Class B (130°C)
No-load consumption	77 mA
Voltage regulation	< 5%
Weight	< 9 kg
Dimensions ( H x W x D )	432.3 x 213 x 128

Autotransformer 120/240 VAC | 100 A

Product specifications