5251-2 – Current Regulated Power Supply
Product Description
Model 5251-2 is an open frame, 0-1A current regulated power supply for use with Magtrol hysteresis brakes and clutches. It has a high input impedance that allows for a variety of sensors and transducers to be used. It features a selectable 0-100 mV/0-5 VDC monitor out that allows connection to a PLC, voltmeter, display or other monitoring device. This allows the user to monitor the current applied directly to the brake or clutch, if desired. With regulated current, torque drift caused by temperature changes within the brake coil is eliminated. Braking control is enabled by using either a 10-turn potentiometer or by an external 0–5 VDC control signal.
Ordering Information
| 5251-2 | Current Regulated Power Supply 115 VAC |
| 5251-2A | Current Regulated Power Supply 230 VAC |
Specifications
| Brake Voltage |
24 VDC |
| Current Ranges |
0-200 mA, 0-500 mA, 0-1000 mA |
| Current Regulation |
±1% Full Scale |
| Braking Control |
10-Turn Potentiometer or
0-5 VDC External Control |
Current Monitor
Output |
Selectable Ranges:
0-200 mV DC
0-500 mV DC
0-1000 mV DC
0-5 V DC |
Line Fuse
(5 x 20 mm) |
5251-2: 115 V IEC 1.0 A 250 V T
5251-2A: 230 V IEC 0.4 A 250 V T |
Brake Fuse
(5 x 20 mm) |
IEC 1.25 A 250 V T |
Power
Requirements |
70 VA |
Voltage
Requirements |
115/230 VAC 50/60 HZ |
Max. Compliance
Voltage |
45 VDC |
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[post_content] => The Torque Powder Brakes (TPB Series) are ideal for applications operating in the low speed range or middle to high torque range. These magnetic powder brakes provide full torque at zero speed and are convection or air cooled, allowing power ratings up to 900 W (2 100 W with air cooling).
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[post_content] => Pure Hysteresis Brakes produce torque strictly through a magnetic air gap without the use of magnetic particles or friction components. This method of braking provides far superior operating characteristics (smoother torque, longer life, superior repeatability, high degree of controllability, and less maintenance and down time) which make them the preferred choice for precise tension control during the processing of nearly any material, web or strand.
[post_title] => HB Series - Hysteresis Brakes
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[post_content] => Magtrol Hysteresis Permanent Magnet Brakes and Clutches are ideal in applications where electrical power cannot be provided to a brake or clutch coil. While best suited to applications where fixed torque is to be applied, adjustable units can be made specifically tailored to the application. Typically provided as brake units, with the addition of an input shaft, the same unit can be used as a clutch. In a clutch application, the pole/case member becomes the drive element, and the rotor/shaft assembly becomes the driven element of the clutch with torque being transmitted through the magnetic air-gap. Magtrol Hysteresis Permanent Magnet devices provide all the superior operating characteristics of smooth operation, precise repeatability and long life inherent in our standard Hysteresis Brakes and Clutches.
[post_title] => HPM/HPMC Series - Permanent Magnet Brakes and Clutches
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[post_content] => Since 1953, Magtrol has created literally thousands of special and modified brake and clutch designs to help solve specific application problems for our customers.
Common Specials and Modifications Include:
- Non-Standard Coil Voltages
- Special Shaft Configurations: keyways, flats, holes, hollow
- Extended Shafts
- Forced Air Cooled Brakes
- Adjustable Permanent Magnet Brakes
- Speed Pickups
- Special Mounting Configurations
- Nonstandard Lead: material, lengths, location
- Higher Torque Devices
- High Speed Units
- Brake/Clutch Combinations
- Dust Covers
[post_title] => Hysteresis Device Special Designs & Modifications
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[post_content] => The Torque Powder Brakes (TPB Series) are ideal for applications operating in the low speed range or middle to high torque range. These magnetic powder brakes provide full torque at zero speed and are convection or air cooled, allowing power ratings up to 900 W (2 100 W with air cooling).
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