300 Ampere 3 Phase Variac

Three phaseAir cooledOil cooledThree phase variac

Smooth, stepless voltage adjustment for testing, laboratories and industrial control. Manual control in an enclosed oil-filled tank. An autotransformer does not provide galvanic isolation.

Price on request

Quoted to your load and input voltage range

Configuration

Motorized

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Indicative price from the current price list. Freight extra. Final specification and price are confirmed with your quotation.

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Current	300 A per phase
Phase	Three phase
Construction	Motorized
Cooling	Air cooled
Input voltage	415 V AC, 3 phase
Output voltage	0–470 V AC, stepless
Frequency	50/60 Hz
Winding	100% copper
Control	Geared motor drive
Brush	Carbon brush
Spare	Spare carbon brush set (3)
Selected input / configuration	Motorized

The Servolink 300 Ampere 3 Phase Variac handles very high current three phase loads. It works on a 415 V AC, 50/60 Hz three phase supply and gives smooth, stepless output from 0 to 470 V AC. Three copper toroidal coils, one per phase, are connected in star and mounted on a common shaft, so all three phases move together and stay balanced. The oil cooled tank type comes with voltage and current meters, rotary switches, indicator lamps, lifting lugs and wheels for easy handling on site.

Typical applications: transformer testing, high-current test bays, heavy industrial heating and large equipment testing. Higher ratings up to 2000 Ampere are available on request.

Construction: 3 toroidal coils (one per phase), star connected; ganged on a common shaft, or with separate control for each phase (Individual Phase Control)
Winding: 100% Copper
Control: Geared motor drive (Motorized), Handwheel with dial (Oil Tank), Separate knob for each phase (Individual Phase Control)
Brush: Carbon brush (one per phase)
Frequency: 50/60 Hz
Dielectric Strength: 2.5 kV AC for 1 minute (winding to body)
Conformity Standard: IS 5142 : 1969
Mandatory Spares: Spare carbon brush set (3 nos.)

Price on request. Freight / transportation extra. GST 18% extra.

Delivery & installation

Freight and dispatch timing are confirmed for your delivery location and the configuration you choose. Installation should be arranged through a qualified electrician. Dimensions, weight and handling requirements are confirmed with the final specification.

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Support & warranty

Contact Servolink for model-specific warranty coverage, installation guidance and service. Where a warranty period is listed in the specifications, confirm its coverage and exclusions in the final quotation.

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