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PDF Downloads: Catalog | Manual | Hookup Diagram | Application Notes
The 250 Series offers superb flexibility, reliability, and value. A general purpose, economical control rated to 2 horsepower, it provides the ultimate in standard features and versatility including: dual voltage (120/240VAC), adjustable H.P. settings, packaged power bridge, barrier terminal strip, fully rated-no auxiliary heatsink required, and chassis or NEMA 4/12 enclosure. Many options further extend the 250’s capabilities. A logical, easily accessible layout simplifies installation and adjustment. Clean design, quality components and careful assembly are trademarks of Dart Controls.
| MODEL NUMBER | STYLE | INPUT (VAC) | OUTPUT (VDC) | HP RANGE | FEATURES |
|---|---|---|---|---|---|
| 251G-12C | CHASSIS | 120/240 | 0-90/180 | 1/50-1/8 (90V) 1/25-1/4 (180) | > Dual voltage - 120/240 VAC, 50/60Hz > Adjustable horsepower settings > Barrier terminal strip > Packaged bridge supply (fullwave) > 1% speed regulation; ±1/2% with tach feedback > Adjustable Minimum speed > Adjustable Maximum speed > Adjustable IR Compensation > Adjustable Linear Acceleration > Adjustable Current Limit > Line voltage compensation > 5K ohm speed pot, knob and dial included > Power on/off switch (enclosed models) > 50:1 speed range > Overload capacity: 150% for one minute > Transient voltage protection > Inhibit circuit > Enclosed models rated NEMA 4/12 |
| 251G-12E | ENCLOSED | 120/240 | 0-90/180 | 1/50-1/8 (90V) 1/25-1/4 (180) |
|
| 253G-200C | CHASSIS | 120/240 | 0-90/180 | 1/8-1 (90V) 1/4-2 (180V) |
|
| 253G-200E | ENCLOSED | 120/240 | 0-90/180 | 1/8-1 (90V) 1/4-2 (180V) |
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Horsepower settings are adjustable, 1/50 thru 1/4 and 1/8 thru 2 – see installation manual. Control is tested and calibrated for maximum horsepower in its category.




