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    No. 99 Innovation Avenue, Xinbei District, Changzhou, Jiangsu
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EC057C 57mm Brushless DC Motor
EC057C 57mm Brushless DC Motor
EC057C 57mm Brushless DC Motor
EC057C 57mm Brushless DC Motor

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Product details
Pittman Brushless Rotary Motor EC057C
The EC057C series brushless DC motor is a high torque density brushless motor with NEMA 23 configuration. It has 4 motor lengths to choose from, with continuous torque ranging from 0.078-0.28 Nm.

characteristic:
  • Speed up to 12000 RPM
  • The DC bus voltage is as high as 76.4 Vdc
  • NEMA 23 configuration
  • Eight standard windings, special windings available
  • 4-pole rare earth design

Video:
How to create motor curves and how to use them
When should a gearbox be used in DC motor applications?

  • specifications+

    MOTOR DATA Units EC057C-1 EC057C-2 EC057C-3 EC057C-4
    Max DC Terminal Voltage V 90 90 90 90
    Max Speed (Mechanical) rpm 12000 12000 12000 12000
    Continuous Stall Torque Nm 0.078 0.14 0.22 0.28
    Continuous Stall Torque oz-in 11 20 31 40
    Peak Torque (Maximum) Nm 0.25 0.44 0.70 0.88
    Peak Torque (Maximum) oz-in 36 63 99 130
    Rotor Inertia kg m2 0.0000042 0.0000078 0.000011 0.000015
    Rotor Inertia oz-in-s2 0.0006 0.0011 0.0016 0.0021
    Motor Weight g 370 510 670 830
    Motor Weight oz 13 18 24 29

  • dimension+


  • Performance Curve+


    EC057C-1 speed torque performance curve

    S. O.A.C.=safe working area for continuous operation


    EC057C-2 speed torque performance curve

    S. O.A.C.=safe working area for continuous operation


    EC057C-3 speed torque performance curve

    S. O.A.C.=safe working area for continuous operation


    EC057C-4 speed torque performance curve

    S. O.A.C.=safe working area for continuous operation


    Note: All values were measured at an ambient temperature of 25 ° C. The peak value is a theoretical value and is for reference only.

  • Winding performance data+

    Page-0d20bbb2-7703-4bde-ae31-5e72e1eab6a5
    EC057C-1 Units
    Rated Voltage V 9.55 12.0 15.2 19.1 24.0 30.3 38.2 48.0
    Rated Torque Nm 0.071 0.070 0.069 0.068 0.068 0.067 0.067 0.067
    Rated Torque oz-in 10 9.9 9.7 9.6 9.6 9.5 9.5 9.5
    Rated Speed rpm 6290 6260 6590 6700 6540 6740 6820 6590
    Rated Current A 7.2 5.5 4.4 3.5 2.7 2.1 1.7 1.3
    Rated Power W 47 46 47 48 46 47 48 46
    No Load Speed rpm 7610 7360 7580 7630 7390 7580 7630 7380
    No Load Current A 0.62 0.48 0.39 0.31 0.24 0.20 0.16 0.12
    Torque Constant Nm/A 0.0117 0.0153 0.0188 0.0235 0.0305 0.0375 0.0470 0.0610
    Torque Constant oz-in/A 1.66 2.16 2.66 3.33 4.31 5.31 6.65 8.64
    Voltage Constant V/krpm 1.23 1.60 1.97 2.46 3.19 3.93 4.92 6.39
    Terminal Resistance Ω 0.220 0.330 0.480 0.73 1.16 1.77 2.76 4.5
    Inductance mH 0.24 0.41 0.62 0.97 1.64 2.48 3.87 6.54
    Peak Current A 25 19 15 12 9.6 7.8 6.3 4.8
    Page-839b9123-5111-4711-8380-7614ff0f15c8
    EC057C-2 Units
    Rated Voltage V 12.0 15.2 19.1 24.0 30.3 38.2 48.0 60.6
    Rated Torque Nm 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13
    Rated Torque oz-in 19 18 18 18 18 18 18 18
    Rated Speed rpm 5690 5890 5780 5980 6090 5930 6070 6070
    Rated Current A 8.9 7.1 5.4 4.3 3.4 2.6 2.1 1.7
    Rated Power W 79 80 78 80 81 78 80 80
    No Load Speed rpm 6620 6730 6490 6630 6700 6500 6640 6690
    No Load Current A 0.54 0.44 0.34 0.27 0.22 0.17 0.14 0.11
    Torque Constant Nm/A 0.0171 0.0213 0.0278 0.0342 0.0427 0.0555 0.0683 0.0855
    Torque Constant oz-in/A 2.42 3.02 3.94 4.84 6.04 7.86 9.67 12.1
    Voltage Constant V/krpm 1.79 2.23 2.91 3.58 4.47 5.81 7.15 8.95
    Terminal Resistance Ω 0.190 0.280 0.430 0.630 0.970 1.56 2.39 3.84
    Inductance mH 0.28 0.44 0.74 1.13 1.76 2.97 4.51 7.40
    Peak Current A 30 24 18 15 12 9.3 7.5 6
    Page-d4913b33-35fd-480e-b74e-cd61
    EC057C-3 Units
    Rated Voltage V 12.0 15.2 19.1 24.0 30.3 38.2 48.0 60.6
    Rated Torque Nm 0.21 0.21 0.20 0.20 0.20 0.20 0.19 0.19
    Rated Torque oz-in 30 29 29 28 28 28 28 27
    Rated Speed rpm 5940 6060 6340 6470 6360 6570 6630 6460
    Rated Current A 15 11 9.0 7.1 5.4 4.4 3.5 2.7
    Rated Power W 130 130 130 140 130 130 140 130
    No Load Speed rpm 7060 6900 7060 7100 6890 7070 7090 6880
    No Load Current A 0.74 0.57 0.47 0.37 0.29 0.23 0.19 0.15
    Torque Constant Nm/A 0.0160 0.0208 0.0256 0.0320 0.0416 0.0512 0.0641 0.0834
    Torque Constant oz-in/A 2.27 2.95 3.62 4.53 5.90 7.25 9.07 11.8
    Voltage Constant V/krpm 1.68 2.18 2.68 3.35 4.36 5.36 6.71 8.73
    Terminal Resistance Ω 0.120 0.170 0.240 0.350 0.540 0.810 1.24 2.00
    Inductance mH 0.17 0.28 0.42 0.66 1.12 1.69 2.64 4.46
    Peak Current A 48 39 30 25 19 15 12 9.3
    Page-f9fde709-ee7b-47ca-9943-82db974da4f8
    EC057C-4 Units
    Rated Voltage V 15.2 19.1 24.0 30.3 38.2 48.0 60.6 76.4
    Rated Torque Nm 0.27 0.26 0.26 0.26 0.25 0.25 0.25 0.25
    Rated Torque oz-in 38 37 37 36 36 36 35 35
    Rated Speed rpm 5870 5850 6110 6270 6120 6280 6360 6190
    Rated Current A 14 11 8.6 6.8 5.2 4.2 3.3 2.6
    Rated Power W 170 160 170 170 160 170 170 160
    No Load Speed rpm 6750 6510 6650 6730 6530 6660 6720 6540
    No Load Current A 0.66 0.50 0.41 0.33 0.26 0.21 0.17 0.13
    Torque Constant Nm/A 0.0213 0.0278 0.0342 0.0427 0.0555 0.0683 0.0855 0.111
    Torque Constant oz-in/A 3.02 3.94 4.84 6.04 7.86 9.67 12.1 15.7
    Voltage Constant V/krpm 2.23 2.91 3.58 4.47 5.81 7.15 8.95 11.6
    Terminal Resistance Ω 0.140 0.200 0.280 0.410 0.650 0.980 1.51 2.45
    Inductance mH 0.22 0.37 0.56 0.88 1.49 2.25 3.52 5.95
    Peak Current A 48 36 29 24 18 15 12 9.0

  • Wiring diagram+



    Color Signal
    Brown Phase A
    Red Phase B
    Orange Phase C
    Grey Hall 1
    Blue Hall 2
    White Hall 3
    Voilet Hall +5 VDC
    Black Hall GND

  • encoder+


    E30A and E30B encoders
    The E30A and E30B transmissive optical incremental encoders are designed specifically for batch OEM precision motion control applications and have been used in Pittman motors for decades. E30A and E30B have multiple outputs and resolutions.

    characteristic:
    • The resolution ranges from 100 to 1024
    • TTL orthogonal output
    • Frequency response up to 100 kHz

    specifications
    Encoder data symbol unit E30A E30B
    Available resolutions - - 100, 200, 256, 360, 500, 512, 1000, 1024 256, 360, 500, 512
    output - - 2-channel orthogonal 2-channel orthogonal with index
    output interface - - TTL compatible TTL compatible
    supply voltage Vcc VDC 4.5 to 5.5 4.5 to 5.5
    Power supply current Icc mA Maximum 40 Maximum 85
    high level output voltage VOH V Minimum 2.4 Minimum 2.4
    Low Level Output Voltage VOL V Maximum 0.4 Maximum 0.4
    Maximum operating frequency fmaximum kHz 100 55 (500-512 CPR)
    110 (1000-1024 CPR)
    220 (2000-2048 CPR)
    operation temperature θmaximum °C -40 to+100 -20 to+85
    Encoder weight (mass) WE ounce 2 2
    g 57 57

    dimension

    CONNECTION DIAGRAM
    Pin colour E30A E30B
    1 black Encoder grounding Encoder grounding
    2 Green or NC Connectionless Index I
    3 yellow Channel A Channel A
    4 red Vcc Vcc
    5 blue Channel B Channel B


    E30C&E30D Encoder
    The E30C and E30D optical incremental encoders are designed specifically for batch OEM precision motion control applications and are recommended encoders for the EC057C. The E30 has a compact structure with dimensions of only 30 mm x 8 mm, providing various output, resolution, and connectivity solutions.

    characteristic:
    • The resolution ranges from 200 to 2048
    • TTL orthogonal output
    • Frequency response up to 220 kHz
    • Low power consumption, maximum 5V @ 20mA
    • Lock connector

    distinctive features
    Encoder data symbol unit E30C E30D
    Available resolutions - - 200, 250, 256, 400, 500 500, 512, 1000, 1024, 2000, 2048
    output - - 2-channel orthogonal 2-channel orthogonal with index
    output interface - - TTL compatible TTL compatible
    supply voltage Vcc VDC 4.5 to 5.5 4.5 to 5.5
    Power supply current Icc mA Maximum 20 Maximum 20
    high level output voltage VOH V Minimum 2.4 Minimum 2.4
    Low Level Output Voltage VOL V Maximum 0.4 Maximum 0.4
    Maximum operating frequency fmaximum kHz 40 (200-500 CPR) 55 (500-512 CPR)
    110 (1000-1024 CPR)
    220 (2000-2048 CPR)
    operation temperature θmaximum °C -20 to+85 -20 to+85
    Encoder weight (mass) WE ounce 0.2 0.2
    g 5.6 5.6

    dimension

    CONNECTION DIAGRAM
    Pin colour E30C E30D E30C1 E30D1
    1 black Encoder grounding Encoder grounding
    2 white Vcc Vcc
    3 Green/White - - Index I?
    4 - - -
    5 Blue/White - Channel A?
    6 blue Channel A Channel A
    7 Purple; Channel B Channel B
    8 Purple/White - Channel B?
    9 green - index - index
    10 Green/Yellow Motor grounding Motor grounding
    E30C1& E30D1Optional differential LD connectors are displayed in gray

    Recommended Encoder Data Sheet
    E30A/B Encoder Data Sheet PDF
    E30C/D Encoder Data Sheet PDF

  • Gearbox+


    PLG52 gear
    PLG52 is a 52mm planetary gearbox suitable for DC brushed and brushless servo motor applications. PLG52 provides excellent efficiency in a compact and versatile output configuration.

    characteristic:
    • Maximum load torque up to 24 Nm
    • Steel gear unit, high torque capacity
    • Double ball bearings on the output shaft, capable of withstanding high loads
    • high efficiency

    specifications
    Gear data unit PLG52 PLG52 PLG52 PLG52 PLG52 PLG52 PLG52
    4.5:1 6.25:1 15:1 20.2:1 28.1:1 36:1 50:1
    Maximum Load Newton metre 1.2 1.2 8 8 8 8 8
    oz-in 170 170 1133 1133 1133 1133 1133
    Weight (mass) g 560 560 720 720 720 720 720
    ounce 19.8 19.8 25.4 25.4 25.4 25.4 25.4
    Length（LG) mm 50.0 50.0 65.5 65.5 65.5 65.5 65.5
    inch 1.97 1.97 2.58 2.58 2.58 2.58 2.58
    level - 1 1 2 2 2 2 2
    ratio - 4.5/1 6.25/1 15/1 20.25/1 28.12/1 36/1 50/1
    efficiency - 0.90 0.90 0.81 0.81 0.81 0.81 0.81
    Axis rotation - CW CW CW CW CW CW CW

    Gear data unit PLG52 PLG52 PLG52 PLG52 PLG52 PLG52
    91.1:1 126.5:1 162:1 225:1 288:1 400:1
    Maximum Load Newton metre 24 24 24 24 24 24
    oz-in 3399 3399 3399 3399 3399 3399
    Weight (mass) g 880 880 880 880 880 880
    ounce 31.0 31.0 31.0 31.0 31.0 31.0
    Length（LG) mm 80.5 80.5 80.5 80.5 80.5 80.5
    inch 3.17 3.17 3.17 3.17 3.17 3.17
    level - 3 3 3 3 3 3
    ratio - 91.12/1 126.5/1 162/1 225/1 288/1 400/1
    efficiency - 0.73 0.73 0.73 0.73 0.73 0.73
    Axis rotation - CW CW CW CW CW CW

    dimension

    Combined length
    PLG52 gear motor
    electrical machinery Length LGM mm
    platform 1 2 3
    EC057C-1 88.2 103.7 118.7
    EC057C-2 99.6 115.1 130.1
    EC057C-3 112.3 127.8 142.8
    EC057C-4 125.0 140.5 155.5

    Recommended Transmission Data Sheet
    PLG52 Transmission Data Sheet PDF

    Backup Transmission Data Sheet
    G51A Transmission Data Sheet PDF
    PLG42S Transmission Data Sheet PDF
    G40A Transmission Data Sheet PDF

  • brake+


    B3 brake
    The B3 power-off and fail safe brake is a 57mm NEMA23 version that can be directly installed at the front of the Pittman NEMA23 motor without the need for an adapter. Like B49A, it can keep the load stationary when the motor and brake are powered off.

    characteristic:
    • Maintain a torque of 0.339 Nm
    • NEMA 23 Installation - Motor and Load
    • 24Vdc

    specifications
    Braking data unit B3
    Applied voltage VDC 24
    holding torque Newton metre 0.339
    lb-in 3.0
    electric current A 0.18
    resistance ohm 132
    inertia Kg-m2 3.60E-06
    Ounces, inches, seconds, square 5.1E-04
    weight Kg 0.5
    pound 1.1

    dimension

    Size - inches (millimeters)
    model B3
    A(3) 2.250 (57.15)
    B(4x) 0.205 (5.21)
    C(2) 16.75 (425.0)
    H(3) 1.18 (29.97)
    L(1) 1.78 (45.2)
    U(1) 0.250 (6.35)
    U2(3) 0.145 (3.68)
    AH(3) 0.70 (17.78)
    AJ(3) 2.625 (66.68)
    AK(1) 1.500 (38.1)
    BB(3) 0.10 (2.54)
    be careful:
    All brake data is measured at 20 degrees Celsius
    (1) Maximum value, (2) minimum value, (3) nominal value, (4x) 4 positions

    Recommended brake data sheet
    B3 Brake Data Sheet PDF

  • Driver+


    Recommended Drivers
    BGE6050

    spare drive
    BGE6010
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