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This series of high current round edge wound resistors is suitable for a variety of application scenarios, including dynamic braking, load box, motor starting and reverse braking. A variety of ohm values and current ratings are available to meet the needs of rail transit applications.
high current round edge wound resistor
14984 Series
This series of high current round edge wound resistors is suitable for a variety of application scenarios, including dynamic braking, load box, motor starting and reverse braking. A variety of ohm values and current ratings are available to meet the needs of rail transit applications.
A strong welded steel frame supports the fire-resistant insulator. The surface of the steel frame is converted with zinc chromate for excellent corrosion resistance. The ceramic insulator isolates the turns of the resistive element from each other and from the steel frame. The resistance element is made of stainless steel strip, because of its strong corrosion resistance, extremely low temperature coefficient, and the unit length resistance value and current carrying capacity match well. The resistive element is made by winding a stainless steel strip along the edges to make a continuous coil of a specified length. The assembly is finally completed by galvanized terminals welded to the resistance element.
| Ohmite Part Number | Continuous Amps | Ohms | Watts | Ward Leonard Part Number | Westinghouse Style Number |
|---|---|---|---|---|---|
| 76021-R118 | 160 | 0.118 | 3021 | 14984-10-01 | 1796207 |
| 76021-R157 | 140 | 0.157 | 3077 | 14984-10-03 | 1796206 |
| 76021-R171 | 130 | 0.171 | 2889 | 14984-10-04 | 31D2615A05 |
| 76021-R285 | 100 | 0.285 | 2850 | 14984-10-07 | 31D2614A03 |
If you have specific needs, welcome to contact us.
Characteristics
Current ratingThe continuous current rating is based on a maximum temperature rise of 375°C, which is based on the American Electrical Manufacturers Association Industrial Control Standard for bare element resistors.
Power ratingcan be calculated by the formula I²R.
resistance tolerance ±10%
Special Engineering ServicesOther resistance values, mounting methods, other terminal styles, and all-stainless steel frames and terminal structures not listed in the table are available.
Ordering InformationUse the Ward Leonard part numbers in the table to order.
