Allen-Bradley 150-C25NBR SMC-3 25A Smart Motor Controller | Replacement, Equivalent & Selection Guide
The Allen-Bradley 150-C25NBR is a 25A Smart Motor Controller (SMC-3) from Rockwell Automation’s SMC-3 series, designed for soft-start and soft-stop control of three-phase AC induction motors. It provides smooth motor acceleration, reducing mechanical stress and extending motor life in demanding industrial environments.
Technical Specifications
- Part Number: 150-C25NBR
- Series: SMC-3 (Smart Motor Controller)
- Manufacturer: Allen-Bradley / Rockwell Automation
- Current Rating: 25A (Full Load Amperes)
- Control Voltage: 100–240V AC, 50/60 Hz
- Motor Voltage: 200–480V AC, 3-Phase
- Enclosure: Open Type (IP00)
- Communication: None (standalone)
- Bypass Contactor: Internal bypass included
- Protection Features: Phase loss, overload, stall protection
- Mounting: DIN rail or panel mount
- Standards: UL, CE, CSA
Compatible Replacement & Equivalent Models
The following models are commonly evaluated as replacements or equivalents for the 150-C25NBR. Always verify electrical and mechanical compatibility before substitution:
- 150-C25NBD – SMC-3 25A with DeviceNet communication
- 150-C25NZD – SMC-3 25A with DeviceNet, no bypass
- 150-C25NBR – Standard NBR variant (this unit)
- 150-C37NBR – SMC-3 37A, next rating up for higher load applications
- 150-C16NBR – SMC-3 16A, suitable for smaller motors
- Siemens 3RW3026 – Third-party soft starter, 25A range; verify control voltage compatibility
- Schneider ATS01N225LU – Altistart 01, 25A soft starter; functional equivalent for basic applications
Note: Third-party equivalents may require wiring adaptation. Consult your system integrator before replacement.
Why Choose the Original 150-C25NBR
- Factory-certified Allen-Bradley / Rockwell Automation component
- Seamless integration with Studio 5000, RSLogix 5000, and ControlLogix/CompactLogix PLCs
- Internal bypass contactor reduces heat dissipation during run mode
- Proven reliability in continuous-duty industrial environments
- Full Rockwell Automation technical support and firmware compatibility
- Consistent performance across global voltage standards (200–480V AC)
Typical Applications
- Pump and fan soft-start control
- Conveyor belt motor management
- Compressor and HVAC motor starting
- Mixer and agitator drives
- Water treatment and municipal infrastructure
- Oil & gas auxiliary motor control
System Compatibility
- PLC Platforms: ControlLogix, CompactLogix, MicroLogix (via hardwired I/O)
- Software: RSLogix 5000 / Studio 5000 (status monitoring via hardwired signals)
- Panel Integration: Compatible with Allen-Bradley motor control centers (MCC)
- Contactor Pairing: Designed for use with 100-C series contactors
Selection Guide
Use the table below to select the correct SMC-3 model based on your motor’s full-load amperage (FLA):
- Up to 16A FLA → 150-C16NBR
- Up to 25A FLA → 150-C25NBR (this model)
- Up to 37A FLA → 150-C37NBR
- Up to 54A FLA → 150-C54NBR
- Up to 72A FLA → 150-C72NBR
- DeviceNet required → Replace NBR suffix with NBD (e.g., 150-C25NBD)
- No bypass needed → Replace NBR suffix with NZR (e.g., 150-C25NZR)
Tip: Always size the SMC-3 at or above the motor’s nameplate FLA. Do not undersize.
Quality Assurance & Sourcing
- All units sourced from authorized distributors or verified surplus channels
- Pre-shipment inspection: visual, label verification, and functional check where applicable
- Original manufacturer packaging preserved where available
- Traceability documentation available upon request
- Konmask.com specializes in industrial automation components for B2B buyers globally
How to Order
- Part Number: 150-C25NBR
- Quantity: Single unit or bulk orders accepted
- Lead Time: Contact us for real-time stock and lead time confirmation
- Payment: T/T, PayPal, and other B2B payment methods accepted
- Shipping: Worldwide shipping via DHL, FedEx, UPS, or sea freight
- Contact: support@konmask.com | +0086 19859288691
Replacement & Compatibility FAQ
Q: Can I replace 150-C25NBR with 150-C25NBD?
A: Yes, if your application does not use DeviceNet, the NBD variant is functionally equivalent but includes an unused DeviceNet port. Wiring remains the same.
Q: Is the 150-C25NBR compatible with 600V systems?
A: No. The SMC-3 series supports up to 480V AC. For 600V applications, consult Rockwell Automation for the appropriate SMC-Flex model.
Q: What is the difference between SMC-3 and SMC-Flex?
A: SMC-3 is a basic soft-starter with fixed ramp control. SMC-Flex offers advanced features including current limiting, pump control, and network communications. For complex applications, SMC-Flex is recommended.
Q: Can I use a Siemens 3RW soft starter as a direct replacement?
A: Functionally possible for basic soft-start duty, but control wiring, parameter setup, and PLC integration will differ. A qualified engineer should verify compatibility.
Q: Do you provide a warranty?
A: Yes. Please contact us for warranty terms applicable to your order.
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