Variac Variable Transformers
 

Search:     

Staco Variable Transformer 1510 and 1520 Series

The 1510/1520 Series Variable Transformers are highly reliable, dependable and accurate AC voltage control devices. The 1510,120 volt variable transformer coil is rated at 15 amperes for constant current loads; while the 1520, 240 volt variable transformer is rated at 9.5 amperes for constant current loads. Constant impedance ratings are listed in the specifications. They can be operated at frequencies between 50 and 2000 hertz with derating at higher than rated frequency (See Table for frequency derating).

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 are available in either "C" style (featuring cover over the coil assembly only) or the "CT" style (which also includes a terminal box cover with knock-outs to accept conduit).

Motor driven variable transformer models in this series are available in single, two and three ganged 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 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 Variable Transformer Selector for other sizes

 

st1500_gang_img.jpg (17684 bytes) st1500_open_img.jpg (4321 bytes)

Single Open Construcion

st1500_ct_img.jpg (4390 bytes)

Single Enclosed "CT" Version

st1500_m_img.jpg (5419 bytes)

Motorized "M" Open Construction

st1510_wiring.jpg (5288 bytes)

Type 1510

st1520_wiring.jpg (5246 bytes)

Type 1520

St1500_single_dim.jpg (35890 bytes)
st1500_single_ct_dim.jpg (27115 bytes)
st1500_gang_dim.jpg (23384 bytes) st1500_ct_gang_dim.jpg (15804 bytes)
st1500_m_dim.jpg (21149 bytes) st1500_mct_dim.jpg (24078 bytes)

 1500 Series Variac Drawings    

IMPORTANT NOTES About VARIAC Current Ratings

120V 50/60Hz Single Phase Input with up to 140V Outputs

Part Number

Input Volts

Output Volts

Constant Current/ Constant Impedance* Rating

Features  
1510B 120 0-120 15A/ 20A* Add 'CT' Suffix for Cased version
M1510B (Motorized) 0-140 15A
3PN1510B 120 0-140 15A Case, Cord, Plug, Switch, Light, Fuse, Receptacle
3PN1510B-DVM 120 0-140 15A Case, Cord, Plug, Switch, Light, Fuse, Receptacle, Digital Voltmeter

 

240V 50/60 Hz Single Phase Input with up to 280V Outputs

Part Number

Input Volts

Output Volts

Constant Current/ Constant Impedance* Rating

Features  
1520 240 0-240 9.5A/ 12A* Add 'CT' Suffix for Cased version
M1520 (Motorized) 0-280 9.5A
3PN1520B 240 0-280 9.5A Case, Cord, Plug, Switch, Light, Fuse, Receptacle
3PN1520B-DVM 240 0-280 9.5A Case, Cord, Plug, Switch, Light, Fuse, Receptacle, Digital Voltmeter
1510-2 240 0-240 15A/ 20A* Add 'CT' Suffix for Cased version
M1510-2 (Motorized) 0-280 15A

 

480V 50/60 Hz Single Phase Input with up to 560V Outputs

Part Number

Input Volts

Output Volts

Constant Current/ Constant Impedance* Rating

Features  
1520-2 480 0-480 9.5A/ 12A* 2-Ganged Unit; Add 'CT' Suffix for Cased version
M1520-2 (Motorized) 0-560 9.5A

 

120V 50/60 Hz Single Phase Input Voltage Doublers 0-280V Outputs

Part Number

Input Volts

Output Volts

Current Rating to 150V

Current Rating at 215V

Current Rating at 280V

Features  
1520 120 0-280 9.5A 5.4A 4.1A Add 'CT' Suffix for Cased version
M1520 (Motorized)
3PN1520B-MOD 120 0-280 9.5A 5.4A 4.1A Case, Cord, Plug, Switch, Light, Fuse, Receptacle
3PN1520B-XDVM 120 0-280 9.5A 5.4A 4.1A Case, Cord, Plug, Switch, Light, Fuse, Receptacle, Digital Voltmeter

 

240V 50/60 Hz Single Phase Input Voltage Doublers 0-560V Outputs

Part Number

Input Volts

Output Volts

Current Rating to 300V

Current Rating at 430V

Current Rating at 560V

Features  
1520-2 240 0-560 9.5A 5.4A 4.1A 2-Ganged Unit, Add 'CT' Suffix for Cased version
M1520-2 (Motorized)

 

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

Part Number

Input Volts

PH HZ

Output Volts

Constant Current/ Constant Impedance* Rating

Features  
1510-3 240 3 50 / 60 0-240 15A/ 20A* 3-Ganged Unit; Add 'CT' Suffix for Cased version
M1510-3 (Motorized) 60 0-280 15A

 

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

IMPORTANT NOTES About VARIAC Current Ratings

Part Number

Input Volts

PH HZ

Output Volts

Constant Current/ Constant Impedance* Rating

Features  
1520-3 480 3 50 / 60 0-480 9.5A/ 12A* 3-Ganged Unit; Add 'CT' Suffix for Cased version
M1520-3 (Motorized) 60 0-560 9.5A

 

240V 60Hz Three Phase Wye Phase Input Voltage Doublers 240V 0-560V Outputs

Part Number

Input Volts

PH HZ

Output Volts

Current Rating to 300V

Current Rating at 430V

Current Rating at 560V

Features  
1520-3 240 3 60 0-560 9.5A 5.4A 4.1A 3-Ganged Unit, Add 'CT' Suffix for Cased version
M1520-3 (Motorized)

1500 Series Variac Drawings    

ISE, Inc. Links

ISE, Inc.
10100 Royalton Rd.
Cleveland, OH  44133 USA
Tel: 440-237-3200 - Fax 440-237-1744
Email ISE Email ISE Cleveland

 

      
 
 

ISE, Inc. Privacy Policy

Copyright © 2020 ISE, Inc.  All rights reserved.     ISE Credit Cards Accepted

VARIAC® is the registered trademark of ISE, Inc.  Use by others without permission may result in legal action.