Variac Variable Transformers
 

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Staco VARIAC Variable Transformer 1000 and 1200 Series

STACO’s 1010B variable transformer coil operates on 120 volts and is rated for constant current of 10 amperes. The 1020B variable transformer coil operates on 120 or 240 volts and has a constant current rating of up to 3.5 amperes. Both variable transformer types include coil tapping arrangements allow for 0 to input line voltage or 17% above line voltage. The 1020 taps allow the unit to double the input voltage if desired. 

Staco 1210B variable transformer coil operates on 120 volts and is rated for constant current of 12 amperes. The 1220B variable transformer coil operates on  240 volts and has a constant current rating of up to 5 amperes. Both variable transformer types include coil tapping arrangements allow for 0 to input line voltage or 17% above line voltage.  

All these variable transformers may be operated from 50-1500 hertz with no reduction in output current.

Uncased models have the shaft extending from the base end. This shaft is fully adjustable and can be extended from either end for general utility mounting. Cased styles, which have a "CT" suffix, feature the protective cover over the coil assembly and a terminal box cover with knock-outs to accept conduit.

Motor driven variable transformer units are available in single, two and three ganged variable transformer assemblies; cased or uncased styles as identified by the prefix "M" in the type number. If a motor driven model is ordered, be sure to prefix the part number with the desired travel time from (0 to maximum output) of 5,15, 30, or 60 seconds. The synchronous motor is designed for operation on 120 volts, 50/60 hertz single phase lines and draws approximately 0.3 amperes.  Portable models with case, cord, receptacle, switch, light and fuse are available.  Goto Portable Variable Transformer Page for details.

Goto Selector for other sizes

IMPORTANT NOTES About VARIAC Current Ratings

 

staco1010_open.jpg (4418 bytes)Open Style staco1010_ct.jpg (3290 bytes)Cased "CT" Version staco1010_m.jpg (5703 bytes)Motorized Version
staco1010_opendim.jpg (27360 bytes)
staco_1010ctdim.jpg (22826 bytes)
staco1010_gang.jpg (40687 bytes)
staco1010_ctgang.jpg (33904 bytes)
staco1010_mgang.jpg (43523 bytes)
staco_1010mctgang.jpg (39144 bytes)
  staco1010_wiring.jpg (4851 bytes) 1010 Wiring staco1210_wiring.jpg (5342 bytes)1020/1220 Wiring

1000 Series Variac Drawings   1200 Series Variac Drawings   

 

IMPORTANT NOTES About VARIAC Current Ratings

120V Single Phase Input with up to 140V Outputs

Part Number

Input

Volts

PH HZ

Output

Volts

Constant Current/ Constant Impedance* Rating

Features  
1010B 120 1 50/ 60 0-120 10A/ 12A* Add 'CT' Suffix for Cased version
M1010B (Motorized)  0-140 10A
3PN1010B 120 1 50/ 60 0-140 10A Case, Cord, Plug, Switch, Light, Fuse, Receptacle
1210B 120 1 60 0-120 12A/ 15A* Add 'CT' Suffix for Cased version
M1210B (Motorized) 
3PN1210B 120 1 50/ 60 0-120 12A Case, Cord, Plug, Switch, Light, Fuse, Receptacle

 

240V Single Phase Input with up to 280V Outputs

Part Number

Input

Volts

PH HZ

Output

Volts

Constant

Current

Rating

Features  
1020B 240 1 50/ 60 0-240 3.5A/ 5A* Add 'CT' Suffix for Cased version
M1020B (Motorized)  0-280 3.5A
3PN1020B 240 1 50/ 60 0-280 3.5A Case, Cord, Plug, Switch, Light, Fuse, Receptacle
1220B 240 1 60 0-240 5A/ 7A* Add 'CT' Suffix for Cased version
M1220B (Motorized) 
3PN1220B 240 1 60 0-240 5.0A Case, Cord, Plug, Switch, Light, Fuse, Receptacle

 

480V Single Phase Input with up to 560V Outputs

Part Number

Input

Volts

PH HZ

Output

Volts

Constant

Current

Rating

Features  
1020B-2 480 1 50/ 60 0-480 3.5A/ 5A* 2-Ganged Unit; Add 'CT' Suffix for Cased version
M1020B-2 (Motorized)  0-560 3.5A
1220B-2 480 1 60 0-480 5.0A/ 7A* 2-Ganged Unit; Add 'CT' Suffix for Cased version
M1220B-2 (Motorized) 

 

Single Phase Voltage Doublers 120V Input 0-280V Outputs

Part Number

Input

Volts

PH HZ

Output

Volts

Rating to 150V

Rating at 215V

Rating at 280V

Features  
1020B 120 1 50 / 60 0-280 3.5A 2.0A 1.5A Add 'CT' Suffix for Cased version
M1020B (Motorized) 
3PN 1020B-MOD 120 1 50 / 60 0-280 3.5A 2.0A 1.5A Case, Cord, Plug, Switch, Light, Fuse, Receptacle

 

Single Phase Voltage Doublers 240V Input 0-560V Outputs

Part Number

Input

Volts

PH HZ

Output

Volts

Rating to 300V

Rating at 430V

Rating at 560V

Features  
1020B-2 240 1 50/ 60 0-560 3.5A 2.0A 1.5A 2-Ganged Unit, Add 'CT' Suffix for Cased version
M1020B-2 (Motorized) 

 

240V Three Phase Wye Input with up to 280V Outputs

Part Number

Input

Volts

PH HZ

Output

Volts

Constant

Current

Rating

Features  
1010B-3 240 3 50/ 60 0-240 10A/ 13A* 3-Ganged Unit; Add 'CT' Suffix for Cased version
M1010B-3 (Motorized)  60 0-280 10A
1210B-3 240 3 60 0-240 12A/ 15A* 3-Ganged Unit; Add 'CT' Suffix for Cased version
M1210B-3 (Motorized) 

 

480V Three Phase Input 0-480/560V Output

Part Number

Input

Volts

PH HZ

Output

Volts

Constant

Current

Rating

Features  
1020B-3 480 3 50/ 60 0-480 3.5A/ 5A* 3-Ganged Unit; Add 'CT' Suffix for Cased version
M1020B-3 (Motorized)  60 0-560 3.5A
1220B-3 480 3 60 0-480 5A/ 7A* 3-Ganged Unit; Add 'CT' Suffix for Cased version
M1220B-3 (Motorized) 

 

Three Phase Wye Phase Voltage Doublers 240V Input 0-560V Outputs

Part Number

Input

Volts

PH HZ

Output

Volts

Rating to 300V

Rating at 430V

Rating at 560V

Features  
1020B-3 240 3 60 0-560 3.5A 2.0A 1.5A 3-Ganged Unit, Add 'CT' Suffix for Cased version
M1020B-3 (Motorized) 

 

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