85A Three-Phase Soft Starting
The SMC-3 150-C85NBD provides an 85 A controller rating for compatible three-phase induction motors, with a documented line-connected motor current range of 28.3-85 A for specified 380-460 VAC applications.
Technical specifications, features, applications and purchasing information.
| Brand | Allen-Bradley |
| Model Number | 150-C85NBD |
| Product Category | Smart Motor Controller |
| Product Family | SMC-3 |
| Product Bulletin | Bulletin 150-C |
| Controller Type | Solid-State Smart Motor Controller |
| Rated Controller Current | 85 A |
| Nominal Main Power Voltage | 480 VAC |
| Main Power Voltage Class | 200-480 VAC |
| Power Circuit | Three-Phase, 3-Wire |
| Operating Frequency | 50/60 Hz |
| Control Supply Voltage | 100-240 VAC |
| Control Current During Starting | 200 mA at 120 VAC; 100 mA at 240 VAC with Fan |
| Line-Connected Motor Current Range | 28.3-85 A at 380/400/415/460 VAC |
| Inside-Delta Motor Current Range | 50-147 A at 380/400/415/460 VAC |
| Line-Connected Motor Power at 400/415VAC | Up to 45 kW at 50 Hz |
| Line-Connected Motor Power at 460VAC | 25-60 HP at 60 Hz |
| Inside-Delta Motor Power at 460VAC | 25-100 HP at 60 Hz |
| Starting Duty | 350% of Motor Full-Load Current |
| Selectable Current Limit | 150%, 250%, 350% and 450% of Motor Full-Load Current |
| Selectable Start Times | 2, 5, 10, 15, 20, 25 and 30 Seconds |
| Selectable Initial Torque | 15%, 25%, 35% and 65% of Locked-Rotor Torque |
| Selectable Kick Start Duration | Off, 0.5, 1.0 or 1.5 Seconds at 450% FLA |
| Soft Stop Configuration | Off, 100%, 200% or 300% of Selected Start Time When Wired |
| Integrated Motor Overload Protection | Yes |
| Selectable Overload Trip Classes | Class 10, 15 and 20 |
| Internal Bypass | Integrated |
| Motor Rotation Control | Single Direction |
| Auxiliary Overload/Fault Contact | 1 Normally Open Contact at Terminals 97-98 |
| Auxiliary Contact Rating | 0.6 A at 120 VAC; 0.3 A at 240 VAC |
| Integrated Display | No |
| Enclosure Configuration | Open Type |
| Degree of Protection | IP2X |
| Rated Insulation Voltage | 600 VAC per UL/CSA/NEMA |
| Rated Impulse Withstand Voltage | 6 kV |
| Power Circuit Dielectric Withstand | 2500 VAC per IEC |
| Operating Temperature | -5°C to 50°C |
| Relative Humidity | 5-95% Non-Condensing |
| Maximum Installation Altitude | 2000 m |
| Pollution Degree | 2 |
| Steady-State Heat Dissipation | 82 W |
| Power Terminal Conductor Size | 2.5-95 mm² |
| Power Terminal Tightening Torque | 11.3-12.4 Nm |
| Mounting Hole Diameter | 5.3 mm |
| Dimensions (H × W × D) | 206 × 72 × 130 mm |
| Weight | 2.25 kg |
| Product Lifecycle Status | Active |
The SMC-3 150-C85NBD provides an 85 A controller rating for compatible three-phase induction motors, with a documented line-connected motor current range of 28.3-85 A for specified 380-460 VAC applications.
The controller uses 100-240 VAC control power and supports a nominal 480 VAC three-phase main power circuit. It is distinct from the 24 V AC/DC control version.
An internal bypass reduces thyristor conduction losses after motor acceleration, helping limit heat generation during the applicable running condition.
Selectable current limits of 150-450% of motor full-load current, starting times from 2 to 30 seconds, adjustable initial torque and soft stopping provide flexible motor-starting configurations.
The starter includes integrated electronic motor overload protection with selectable Class 10, 15 and 20 trip characteristics and a normally open overload/fault auxiliary contact.
The open-type unit measures 206 × 72 × 130 mm and weighs 2.25 kg. Its documented operating temperature range is -5°C to 50°C.
We support online purchase of the Allen-Bradley 150-C85NBD Soft Starter. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods.
What is Allen-Bradley 150-C85NBD?
Allen-Bradley 150-C85NBD is a Bulletin 150-C SMC-3 solid-state soft starter rated at 85 A, designed for three-phase motor starting with a nominal 480 VAC main power voltage and 100-240 VAC control supply.
What is the rated current of 150-C85NBD?
The controller has an 85 A rated current. Rockwell Automation specifies a line-connected motor current range of 28.3-85 A for the documented 380-460 VAC applications.
What control voltage does 150-C85NBD require?
The model uses 100-240 VAC control power. The documented control current during starting with the fan is 200 mA at 120 VAC or 100 mA at 240 VAC.
What is the difference between 150-C85NBD and 150-C85NBR?
The 150-C85NBD uses 100-240 VAC control power, while the 150-C85NBR uses 24 V AC/DC control power. They are different control supply configurations and should not be interchanged without checking the control circuit.
What motor horsepower range does 150-C85NBD support?
The manufacturer documents 25-60 HP for line-connected motors at 460 VAC and 25-100 HP for compatible inside-delta connections at 460 VAC. Selection depends on the motor full-load current and starting duty.
Does 150-C85NBD support inside-delta motor connections?
Yes. The documented inside-delta motor current range is 50-147 A at 380/400/415/460 VAC. Motor wiring and circuit protection must follow the installation instructions.
Does 150-C85NBD include an internal bypass?
Yes. The SMC-3 includes an integrated bypass that reduces losses during the applicable full-speed motor running condition.
What current limit settings are available?
Selectable current limits are 150%, 250%, 350% and 450% of motor full-load current. Starting time and initial torque settings can also be adjusted for compatible loads.
Does 150-C85NBD provide motor overload protection?
Yes. The starter provides integrated electronic motor overload protection with selectable Class 10, 15 and 20 trip settings. The selected trip class must match the motor and application requirements.
Can 150-C85NBD perform soft stopping?
Yes. The standard soft stop function can be set to off or to 100%, 200% or 300% of the selected start time when correctly wired and configured.
Does 150-C85NBD have an integrated display or fault contact?
The module does not include an integrated display. It provides one normally open overload/fault auxiliary contact at terminals 97-98, rated at 0.6 A at 120 VAC or 0.3 A at 240 VAC.
What should be checked before ordering 150-C85NBD?
Verify the manufacturer catalog number 150-C85NBD, 85 A controller rating, main supply voltage, 100-240 VAC control supply, motor nameplate current, line or inside-delta connection, overload trip class, starting duty, auxiliary contact wiring, IP2X protection and 206 × 72 × 130 mm installation dimensions.
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