30A Three-Phase Motor Starting
The Allen-Bradley SMC-3 150-C30NBR provides a 30 A controller rating for compatible three-phase induction motors, with a documented line-connected motor current range of 10-30 A at specified supply voltages.
Technical specifications, features, applications and purchasing information.
| Brand | Allen-Bradley |
| Model Number | 150-C30NBR |
| Product Category | Smart Motor Controller |
| Product Family | SMC-3 |
| Product Bulletin | Bulletin 150-C |
| Controller Type | Solid-State Smart Motor Controller |
| Rated Controller Current | 30 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 | 24 V AC/DC |
| Control Current During Starting with Fan | 800 mA at 24 VDC; 660 mA at 24 VAC |
| Control Current During Starting without Fan | 705 mA at 24 VDC; 580 mA at 24 VAC |
| Control Input ON-State Current | 7.3 mA at 24 V AC/DC |
| Minimum Control Input ON-State Voltage | 19.2 V AC/DC |
| Line-Connected Motor Current Range | 10-30 A at 380/400/415/460 VAC |
| Inside-Delta Motor Current Range | 17.3-52 A at 380/400/415/460 VAC |
| Line-Connected Motor Power at 460VAC | 7.5-20 HP at 60 Hz |
| Inside-Delta Motor Power at 460VAC | 7.5-30 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 Conventional Thermal Current | 1 A |
| Auxiliary Contact Operational Rating | 0.6 A at 120 VAC; 0.3 A at 240 VAC |
| Auxiliary Contact Make Capacity | 432 VA |
| Auxiliary Contact Break Capacity | 72 VA |
| 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 |
| Power Circuit dV/dt Protection | 1000 V/µs |
| High-Capacity Short-Circuit Rating | Up to 70 kA at 600 V with Applicable Maximum 60 A Time-Delay Class J or L Fuse for Line-Connected Motors |
| 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 | 19 W |
| Power Terminal Conductor Size | 2.5-25 mm² |
| Power Terminal Tightening Torque | 2.3-3.4 Nm; 4.0 Nm for 25 mm² Wire in Top Terminal |
| Mounting Hole Diameter | 4.6 mm |
| Dimensions (H × W × D) | 139.7 × 44.8 × 110 mm |
| Weight | 0.86 kg |
| Product Lifecycle Status | Active |
| Manufacturer Documentation | 150-IN030 Installation Instructions; 150-TD009 Technical Data |
| Manufacturer Product Reference | Rockwell Automation 150-C30NBR Product Specifications |
The Allen-Bradley SMC-3 150-C30NBR provides a 30 A controller rating for compatible three-phase induction motors, with a documented line-connected motor current range of 10-30 A at specified supply voltages.
The controller operates with a 24 V AC/DC control supply and supports a nominal 480 VAC three-phase main power circuit. This configuration is distinct from versions requiring 100-240 VAC control power.
The internal bypass reduces thyristor conduction losses once the motor reaches its normal running condition, helping limit operating heat generation and power dissipation.
Selectable current limits of 150-450% of motor full-load current, starting times from 2 to 30 seconds, adjustable initial torque and configurable soft stopping support a variety of mechanical loads.
The SMC-3 includes electronic motor overload protection with selectable Class 10, 15 and 20 trip characteristics. A normally open fault contact provides an interface for supported monitoring and control circuits.
The open-type controller measures 139.7 × 44.8 × 110 mm and weighs approximately 0.86 kg. It has an IP2X protection rating and a documented steady-state heat dissipation of 19 W.
We support online purchase of the Allen-Bradley 150-C30NBR 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-C30NBR?
Allen-Bradley 150-C30NBR is a Bulletin 150-C SMC-3 solid-state soft starter rated at 30 A, designed for three-phase motor starting with a nominal 480 VAC main power supply and 24 V AC/DC control power.
What is the rated current of 150-C30NBR?
The controller has a 30 A current rating. Rockwell Automation specifies a line-connected motor current range of 10-30 A for supported 380/400/415/460 VAC installations.
What control voltage does 150-C30NBR require?
This model requires 24 V AC/DC control power. The documented current during starting with the fan operating is 800 mA at 24 VDC or 660 mA at 24 VAC.
What is the difference between 150-C30NBR and 150-C30NBD?
The 150-C30NBR uses 24 V AC/DC control power, while the 150-C30NBD uses a 100-240 VAC control supply. These models must not be substituted without confirming the existing control circuit voltage.
What motor horsepower range does 150-C30NBR support?
Manufacturer data specifies 7.5-20 HP for line-connected motors at 460 VAC and 7.5-30 HP for supported inside-delta connections at 460 VAC. Actual selection depends on motor full-load current and starting duty.
Does 150-C30NBR support inside-delta motor connections?
Yes. The documented inside-delta motor current range is 17.3-52 A at the applicable 380/400/415/460 VAC operating conditions. Wiring and circuit protection must follow the manufacturer installation requirements.
Does 150-C30NBR include an internal bypass?
Yes. The controller includes an integrated bypass to reduce power losses during the applicable full-speed motor running condition.
What current limit settings are available?
The available settings are 150%, 250%, 350% and 450% of motor full-load current. Starting times, initial torque and kick-start duration are also configurable.
Does 150-C30NBR include electronic overload protection?
Yes. The starter includes electronic motor overload protection with selectable Class 10, 15 and 20 trip settings. The selected settings must be matched to the connected motor and application.
Can 150-C30NBR perform soft stopping?
Yes. Soft stopping can be disabled or configured to 100%, 200% or 300% of the selected starting time when the controller is correctly wired and configured.
Does 150-C30NBR 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-C30NBR?
Verify the complete catalog number 150-C30NBR, 30 A controller rating, main supply voltage, 24 V AC/DC control power, motor nameplate current, line or inside-delta wiring, overload trip class, current limit settings, fault contact wiring, IP2X protection and 139.7 × 44.8 × 110 mm installation dimensions.
Send us your part number and technical requirements.