Powerohm Braking Resistors

Application Information: AC variable frequency drives are commonly used with a general purpose AC induction motor to form a reliable variable speed drive system. For applications that require faster deceleration rates, or where motor speeds are exceeding the synchronous speed set by the output frequency of the drive ( anoverhauling load condition), a braking resistor is required. Braking resistors increase the braking torque capability of a variable frequency drive, producing faster and more controlled braking. The resistor dissipates regenerated power to keep the bus voltage from exceeding the rated limit of the drive.

Construction: Standard units include resistors installed in a screened enclosure with a galvanized finish. Units are furnished with resistors wired to a terminal block with high temperature silicone or teflon wire. Refer to the Enclosure Section of the catalog for enclosure details and finish options.

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CAUTION: It is very important to insure that the resistance listed in the chart below is greater than the minimum specified for your drive or braking module. Installing a braking resistor with too low of a resistance value will cause permanent damage to your drive or braking module. Please call the factory if you need assistance.

Resistance Tolerance: +/- 10%

Braking Resistors for 230 V Drives
100% Braking Torque (Duty Based on Overhauling Load Cycle)
H.P.Ohms10% Duty20% Duty30% Duty50% Duty100% Duty
0.5375R2-0.5A01R2-0.5A02R2-0.5A03R2-0.5A05R2-0.5A10
0.75250R2-0.75A01R2-0.75A02R2-0.75A03R2-0.75A05R2-0.75A10
1190R2-1A01R2-1A02R2-1A03R2-1A05R2-1A10
1.5125R2-1.5A01R2-1.5A02R2-1.5A03R2-1.5A05R2-1.5A10
295R2-2A01R2-2A02R2-2A03R2-2A05R2-2A10
363R2-3A01R2-3A02R2-3A03R2-3A05R2-3A10
538R2-5A01R2-5A02R2-5A03R2-5A05R2-5A10
7.526R2-7.5A01R2-7.5A02R2-7.5A03R2-7.5A05R2-7.5A10
1019R2-10A01R2-10A02R2-10A03R2-10A05R2-10A10
1512.6R2-15A01R2-15A02R2-15A03R2-15A05R2-15A10
209.6R2-20A01R2-20A02R2-20A03R2-20A05R2-20A10
257.5R2-25A01R2-25A02R2-25A03R2-25A05R2-25A10
306.3R2-30A01R2-30A02R2-30A03R2-30A05R2-30A10
404.9R2-40A01R2-40A02R2-40A03R2-40A05R2-40A10
503.9R2-50A01R2-50A02R2-50A03R2-50A05R2-50A10
603.3R2-60A01R2-60A02R2-60A03R2-60A05R2-60A10
752.7R2-75A01R2-75A02R2-75A03R2-75A05R2-75A10
1001.9R2-100A01R2-100A02R2-100A03R2-100A05R2-100A10
1251.6R2-125A01R2-125A02R2-125A03R2-125A05R2-125A10
1501.3R2-150A01R2-150A02R2-150A03R2-150A05R2-150A10
2001R2-200A01R2-200A02R2-200A03R2-200A05R2-200A10
2500.8R2-250A01R2-250A02R2-250A03R2-250A05R2-250A10

Braking Resistors for 230 V Drives
150% Braking Torque (Duty Based on Overhauling Load Cycle)
H.P.Ohms10% Duty20% Duty30% Duty50% Duty100% Duty
0.5250R2-0.5B01R2-0.5B02R2-0.5B03R2-0.5B05R2-0.5B10
0.75170R2-0.75B01R2-0.75B02R2-0.75B03R2-0.75B05R2-0.75B10
1125R2-1B01R2-1B02R2-1B03R2-1B05R2-1B10
1.585R2-1.5B01R2-1.5B02R2-1.5B03R2-1.5B05R2-1.5B10
263R2-2B01R2-2B02R2-2B03R2-2B05R2-2B10
342R2-3B01R2-3B02R2-3B03R2-3B05R2-3B10
525R2-5B01R2-5B02R2-5B03R2-5B05R2-5B10
7.516.8R2-7.5B01R2-7.5B02R2-7.5B03R2-7.5B05R2-7.5B10
1012.6R2-10B01R2-10B02R2-10B03R2-10B05R2-10B10
158.4R2-15B01R2-15B02R2-15B03R2-15B05R2-15B10
206.3R2-20B01R2-20B02R2-20B03R2-20B05R2-20B10
255R2-25B01R2-25B02R2-25B03R2-25B05R2-25B10
304.2R2-30B01R2-30B02R2-30B03R2-30B05R2-30B10
403.2R2-40B01R2-40B02R2-40B03R2-40B05R2-40B10
502.5R2-50B01R2-50B02R2-50B03R2-50B05R2-50B10
602.1R2-60B01R2-60B02R2-60B03R2-60B05R2-60B10
751.7R2-75B01R2-75B02R2-75B03R2-75B05R2-75B10
1001.3R2-100B01R2-100B02R2-100B03R2-100B05R2-100B10
1251R2-125B01R2-125B02R2-125B03R2-125B05R2-125B10
1500.85R2-150B01R2-150B02R2-150B03R2-150B05R2-150B10
2000.65R2-200B01R2-200B02R2-200B03R2-200B05R2-200B10
2500.5R2-250B01R2-250B02R2-250B03R2-250B05R2-250B10

Braking Resistors for 460 V Drives
100% Braking Torque (Duty Based on Overhauling Load Cycle)
H.P.Ohms10% Duty20% Duty30% Duty50% Duty100% Duty
0.51500R4-0.5A01R4-0.5A02R4-0.5A03R4-0.5A05R4-0.5A10
0.751000R4-0.75A01R4-0.75A02R4-0.75A03R4-0.75A05R4-0.75A10
1750R4-1A01R4-1A02R4-1A03R4-1A05R4-1A10
1.5500R4-1.5A01R4-1.5A02R4-1.5A03R4-1.5A05R4-1.5A10
2375R4-2A01R4-2A02R4-2A03R4-2A05R4-2A10
3250R4-3A01R4-3A02R4-3A03R4-3A05R4-3A10
5150R4-5A01R4-5A02R4-5A03R4-5A05R4-5A10
7.5100R4-7.5A01R4-7.5A02R4-7.5A03R4-7.5A05R4-7.5A10
1075R4-10A01R4-10A02R4-10A03R4-10A05R4-10A10
1550R4-15A01R4-15A02R4-15A03R4-15A05R4-15A10
2038R4-20A01R4-20A02R4-20A03R4-20A05R4-20A10
2530R4-25A01R4-25A02R4-25A03R4-25A05R4-25A10
3025R4-30A01R4-30A02R4-30A03R4-30A05R4-30A10
4019R4-40A01R4-40A02R4-40A03R4-40A05R4-40A10
5015R4-50A01R4-50A02R4-50A03R4-50A05R4-50A10
6012.6R4-60A01R4-60A02R4-60A03R4-60A05R4-60A10
7510R4-75A01R4-75A02R4-75A03R4-75A05R4-75A10
1007.5R4-100A01R4-100A02R4-100A03R4-100A05R4-100A10
1256R4-125A01R4-125A02R4-125A03R4-125A05R4-125A10
1505R4-150A01R4-150A02R4-150A03R4-150A05R4-150A10
2003.8R4-200A01R4-200A02R4-200A03R4-200A05R4-200A10
2503R4-250A01R4-250A02R4-250A03R4-250A05R4-250A10
3002.5R4-300A01R4-300A02R4-300A03R4-300A05R4-300A10
3502.2R4-350A01R4-350A02R4-350A03R4-350A05R4-350A10
4001.9R4-400A01R4-400A02R4-400A03R4-400A05R4-400A10
5001.5R4-500A01R4-500A02R4-500A03R4-500A05R4-500A10

Braking Resistors for 460 V Drives
150% Braking Torque (Duty Based on Overhauling Load Cycle)
H.P.Ohms10% Duty20% Duty30% Duty50% Duty100% Duty
0.51000R4-0.5B01R4-0.5B02R4-0.5B03R4-0.5B05R4-0.5B10
0.75675R4-0.75B01R4-0.75B02R4-0.75B03R4-0.75B05R4-0.75B10
1500R4-1B01R4-1B02R4-1B03R4-1B05R4-1B10
1.5335R4-1.5B01R4-1.5B02R4-1.5B03R4-1.5B05R4-1.5B10
2250R4-2B01R4-2B02R4-2B03R4-2B05R4-2B10
3170R4-3B01R4-3B02R4-3B03R4-3B05R4-3B10
5100R4-5B01R4-5B02R4-5B03R4-5B05R4-5B10
7.567R4-7.5B01R4-7.5B02R4-7.5B03R4-7.5B05R4-7.5B10
1050R4-10B01R4-10B02R4-10B03R4-10B05R4-10B10
1534R4-15B01R4-15B02R4-15B03R4-15B05R4-15B10
2025R4-20B01R4-20B02R4-20B03R4-20B05R4-20B10
2520R4-25B01R4-25B02R4-25B03R4-25B05R4-25B10
3017R4-30B01R4-30B02R4-30B03R4-30B05R4-30B10
4012.6R4-40B01R4-40B02R4-40B03R4-40B05R4-40B10
5010R4-50B01R4-50B02R4-50B03R4-50B05R4-50B10
608.4R4-60B01R4-60B02R4-60B03R4-60B05R4-60B10
756.7R4-75B01R4-75B02R4-75B03R4-75B05R4-75B10
1005R4-100B01R4-100B02R4-100B03R4-100B05R4-100B10
1254R4-125B01R4-125B02R4-125B03R4-125B05R4-125B10
1503.4R4-150B01R4-150B02R4-150B03R4-150B05R4-150B10
2002.5R4-200B01R4-200B02R4-200B03R4-200B05R4-200B10
2502R4-250B01R4-250B02R4-250B03R4-250B05R4-250B10
3001.7R4-300B01R4-300B02R4-300B03R4-300B05R4-300B10
3501.5R4-350B01R4-350B02R4-350B03R4-350B05R4-350B10
4001.3R4-400B01R4-400B02R4-400B03R4-400B05R4-400B10
5001R4-500B01R4-500B02R4-500B03R4-500B05R4-500B10

Braking Resistors for 575 V Drives
100% Braking Torque (Duty Based on Overhauling Load Cycle)
H.P.Ohms10% Duty20% Duty30% Duty50% Duty100% Duty
0.52000R5-0.5A01R5-0.5A02R5-0.5A03R5-0.5A05R5-0.5A10
0.751500R5-0.75A01R5-0.75A02R5-0.75A03R5-0.75A05R5-0.75A10
11200R5-1A01R5-1A02R5-1A03R5-1A05R5-1A10
1.5800R5-1.5A01R5-1.5A02R5-1.5A03R5-1.5A05R5-1.5A10
2575R5-2A01R5-2A02R5-2A03R5-2A05R5-2A10
3400R5-3A01R5-3A02R5-3A03R5-3A05R5-3A10
5235R5-5A01R5-5A02R5-5A03R5-5A05R5-5A10
7.5150R5-7.5A01R5-7.5A02R5-7.5A03R5-7.5A05R5-7.5A10
10120R5-10A01R5-10A02R5-10A03R5-10A05R5-10A10
1578R5-15A01R5-15A02R5-15A03R5-15A05R5-15A10
2059R5-20A01R5-20A02R5-20A03R5-20A05R5-20A10
2547R5-25A01R5-25A02R5-25A03R5-25A05R5-25A10
3039R5-30A01R5-30A02R5-30A03R5-30A05R5-30A10
4029R5-40A01R5-40A02R5-40A03R5-40A05R5-40A10
5023R5-50A01R5-50A02R5-50A03R5-50A05R5-50A10
6020R5-60A01R5-60A02R5-60A03R5-60A05R5-60A10
7515.6R5-75A01R5-75A02R5-75A03R5-75A05R5-75A10
10011.7R5-100A01R5-100A02R5-100A03R5-100A05R5-100A10
1259.3R5-125A01R5-125A02R5-125A03R5-125A05R5-125A10
1507.8R5-150A01R5-150A02R5-150A03R5-150A05R5-150A10
2005.9R5-200A01R5-200A02R5-200A03R5-200A05R5-200A10
2504.7R5-250A01R5-250A02R5-250A03R5-250A05R5-250A10

Braking Resistors for 575 V Drives
150% Braking Torque (Duty Based on Overhauling Load Cycle)
H.P.Ohms10% Duty20% Duty30% Duty50% Duty100% Duty
0.51500R5-0.5B01R5-0.5B02R5-0.5B03R5-0.5B05R5-0.5B10
0.751000R5-0.75B01R5-0.75B02R5-0.75B03R5-0.75B05R5-0.75B10
1800R5-1B01R5-1B02R5-1B03R5-1B05R5-1B10
1.5525R5-1.5B01R5-1.5B02R5-1.5B03R5-1.5B05R5-1.5B10
2400R5-2B01R5-2B02R5-2B03R5-2B05R5-2B10
3260R5-3B01R5-3B02R5-3B03R5-3B05R5-3B10
5160R5-5B01R5-5B02R5-5B03R5-5B05R5-5B10
7.5100R5-7.5B01R5-7.5B02R5-7.5B03R5-7.5B05R5-7.5B10
1080R5-10B01R5-10B02R5-10B03R5-10B05R5-10B10
1552R5-15B01R5-15B02R5-15B03R5-15B05R5-15B10
2039R5-20B01R5-20B02R5-20B03R5-20B05R5-20B10
2532R5-25B01R5-25B02R5-25B03R5-25B05R5-25B10
3026R5-30B01R5-30B02R5-30B03R5-30B05R5-30B10
4020R5-40B01R5-40B02R5-40B03R5-40B05R5-40B10
5016R5-50B01R5-50B02R5-50B03R5-50B05R5-50B10
6013R5-60B01R5-60B02R5-60B03R5-60B05R5-60B10
1007.8R5-100B01R5-100B02R5-100B03R5-100B05R5-100B10
1256.3R5-125B01R5-125B02R5-125B03R5-125B05R5-125B10
1505.2R5-150B01R5-150B02R5-150B03R5-150B05R5-150B10
2003.9R5-200B01R5-200B02R5-200B03R5-200B05R5-200B10
2503.2R5-250B01R5-250B02R5-250B03R5-250B05R5-250B10
Powerohm Resistors, Hubbell ICD / 5713 13th Street / Katy, Texas 77493