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Contactless Magnetic Electric Brakes
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Create drag to slow or stop the motion of your drive system using magnetic force. Because torque is transmitted by magnetic force without contact, there is no wear, so these brakes give you accurate, repeatable braking. Also known as electric hysteresis brakes, they are often used in tensioning, holding, and stopping applications. The brake engages when the power is on and releases when it is off. The amount of electrical current determines the amount of torque that is applied by the brake. Use these brakes with a current-limiting transformer.
Keyway | Mounting Hole | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Shaft Dia. | Max. Torque, in·lbf | Max. Rotation Speed, rpm | OD | Overall Lg. | Shaft Type | Wd. | Dp. | Electric Brake Type | Drive Direction | Electrical Connection Type | Wire Lead Lg. | Voltage, V DC | Thread Size | Thread Pitch, mm | Each | |||
Through Shaft | ||||||||||||||||||
| 0.118" | 0.2 | 1,990 | 1 1/4" | 1 5/8" | Round | — | — | Power On | Clockwise and Counterclockwise | Hardwire | 18" | 24 | M2.5 | 0.45 | 7758T11 | 0000000 | ||
| 0.197" | 0.8 | 1,200 | 1 13/16" | 2" | D-Profile | — | — | Power On | Clockwise and Counterclockwise | Hardwire | 18" | 24 | M2.5 | 0.45 | 7758T12 | 000000 | ||
| 0.197" | 1.3 | 760 | 2" | 2 1/8" | D-Profile | — | — | Power On | Clockwise and Counterclockwise | Hardwire | 18" | 24 | M3 | 0.5 | 7758T13 | 000000 | ||
| 0.276" | 3.5 | 570 | 2 3/8" | 3" | D-Profile | — | — | Power On | Clockwise and Counterclockwise | Hardwire | 18" | 24 | M4 | 0.7 | 7758T14 | 000000 | ||
| 0.394" | 11 | 590 | 3 5/8" | 4" | D-Profile | — | — | Power On | Clockwise and Counterclockwise | Hardwire | 18" | 24 | M4 | 0.7 | 7758T15 | 000000 | ||
| 0.472" | 19 | 500 | 4 7/16" | 4 7/8" | Keyed | 0.158" | 0.098" | Power On | Clockwise and Counterclockwise | Hardwire | 18" | 24 | M5 | 0.8 | 7758T16 | 000000 | ||
| 0.59" | 32 | 420 | 5 7/16" | 5 1/8" | Keyed | 0.197" | 0.124" | Power On | Clockwise and Counterclockwise | Hardwire | 18" | 24 | M5 | 0.8 | 7758T17 | 00000000 | ||
Base-Mount AC Brake Motors
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Unlike standard AC motors, these motors have an integrated brake that activates after a power loss to hold your equipment in place. They’re often used with conveyors to stop them from moving backwards after a power loss, and with hoists to prevent them from dropping a load. Mount their base to flat surfaces. Rated for continuous duty, these motors can run equipment that never turns off. Their shaft is keyed, and they come with key stock.
Totally Enclosed Fan-Cooled (TEFC) Motor Enclosure—These motors have a TEFC (totally enclosed fan-cooled) enclosure that protects better than an ODP (open dripproof) enclosure. They aren’t airtight, but they can be used in dirty, dusty, and wet environments. To keep the motor cool, the enclosure has an external fan that blows air over the outside of the motor.
Overall | Shaft | Insulation | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Power, hp | Max. Rotation Speed, rpm | Full Load Current | Inverter Rated | Motor Enclosure Type | Lg. | Wd. | Ht. | Dia. | Lg. | Ctr. to Base | Type | Base Type | Class | Max. Temp., ° F | Enclosure Rating | Each | |||
230V AC/460V AC, Three Phase | |||||||||||||||||||
NEMA 56 | |||||||||||||||||||
| 3/4 | 1,720 | 2.8 amp/1.4 amp | No | Totally Enclosed Fan-Cooled (TEFC) | 15 1/4" | 9 1/8" | 7 1/4" | 5/8" | 1 7/8" | 3 1/2" | Keyed | Welded | B | 266 | IP43 | 4952N11 | 000000000 | ||
| 1 | 1,760 | 3.2 amp/1.6 amp | Yes | Totally Enclosed Fan-Cooled (TEFC) | 17 1/4" | 9 1/8" | 7 1/4" | 5/8" | 1 7/8" | 3 1/2" | Keyed | Welded | B | 266 | IP43 | 4952N12 | 00000000 | ||
NEMA 145T | |||||||||||||||||||
| 1 1/2 | 1,750 | 4.4 amp/2.2 amp | No | Totally Enclosed Fan-Cooled (TEFC) | 18 1/8" | 9 1/8" | 6 3/4" | 7/8" | 2 1/4" | 3 1/2" | Keyed | Welded | B | 266 | IP43 | 4952N13 | 00000000 | ||
NEMA 145 | |||||||||||||||||||
| 2 | 1,740 | 5.8 amp/2.9 amp | Yes | Totally Enclosed Fan-Cooled (TEFC) | 18 5/8" | 9 1/8" | 7 3/4" | 7/8" | 2 1/4" | 3 1/2" | Keyed | Welded | F | 311 | IP43 | 4952N14 | 00000000 | ||
Face-Mount AC Brake Motors
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A built-in brake engages to hold your equipment in place when these motors lose power, unlike standard AC motors. These motors are often used with conveyors to keep items in place after a power loss, and with hoists to prevent them from dropping a load. Also known as C-face motors, these bolt directly to your equipment. They’re rated for continuous duty, so they can run equipment that never turns off. Their shaft is keyed, and they come with a key stock.
Totally Enclosed Fan-Cooled (TEFC) Motor Enclosure—These motors have a TEFC (totally enclosed fan-cooled) enclosure that protects better than an ODP (open dripproof) enclosure. They’re not airtight, but they can be used in dirty, wet, and dusty environments. To keep the motor cool, the enclosure has an external fan that blows air over the outside of the motor.
Overall | Shaft | Insulation | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Power, hp | Max. Rotation Speed, rpm | Full Load Current | Inverter Rated | Motor Enclosure Type | Lg. | Wd. | Ht. | Dia. | Lg. | Ctr. to Base | Type | Class | Max. Temp., ° F | Enclosure Rating | Each | |||
230V AC/460V AC, Three Phase | ||||||||||||||||||
NEMA 56C | ||||||||||||||||||
| 3/4 | 1,720 | 2.8 amp/1.4 amp | No | Totally Enclosed Fan-Cooled (TEFC) | 15 3/8" | 8 7/8" | 7 1/4" | 5/8" | 1 7/8" | 3 1/2" | Keyed | B | 266 | IP54 | 4876N11 | 000000000 | ||
| 1 | 1,760 | 3.2 amp/1.6 amp | Yes | Totally Enclosed Fan-Cooled (TEFC) | 17 1/4" | 8 7/8" | 7 1/4" | 5/8" | 1 7/8" | 3 1/2" | Keyed | F | 311 | IP43 | 4876N12 | 00000000 | ||
NEMA 145TC | ||||||||||||||||||
| 1 1/2 | 1,750 | 4.8 amp/2.4 amp | Yes | Totally Enclosed Fan-Cooled (TEFC) | 18 5/8" | 8 7/8" | 7 1/4" | 7/8" | 2" | 3 1/2" | Keyed | F | 311 | IP43 | 4876N13 | 00000000 | ||
| 2 | 1,740 | 5.8 amp/2.9 amp | Yes | Totally Enclosed Fan-Cooled (TEFC) | 18 3/4" | 8 7/8" | 7 1/4" | 7/8" | 2" | 3 1/2" | Keyed | F | 311 | IP43 | 4876N14 | 00000000 | ||
