Published On: July 14, 2026376 words1.9 min read

ALLEN-BRADLEY 150-B360NBD-8B Dialog Plus Soft Starter Motor Controller

ALLEN-BRADLEY 150-B360NBD-8B is a discontinued heavy-duty SMC Dialog Plus intelligent soft starter under Rockwell Automation, designed for 3-phase high-power AC motor smooth startup and overload protection, widely applied in mining equipment, water pump stations, metallurgical conveyors, chemical processing plants and large industrial HVAC systemsRockwell A…. ALLEN-BRADLEY 150-B360NBD-8B eliminates hard-start current surges via voltage ramp control, integrates full motor fault monitoring and digital communication functions, serving as a critical obsolete spare part to maintain stable operation of legacy high-power motor control cabinets. Plant maintenance technicians rely on ALLEN-BRADLEY 150-B360NBD-8B to extend service life of motors and mechanical transmission equipment while reducing grid impact during startup and shutdown cycles.
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Core Procurement & Technical Specifications

  • Brand: ALLEN-BRADLEY (Rockwell Automation)
  • Model: 150-B360NBD-8B
  • Availability: In stock, limited original surplus inventory
  • Delivery Time: Within 3 working days after payment confirmation
  • Warranty: 12-month full functional warranty
  • Condition: Original brand new surplus, unused, factory sealed packaging
  • Input/Output: Rated 360A frame current; 208–480VAC 3-phase main circuit; 24VDC control power; built-in relay fault alarm output terminals
  • Operating Temperature: -20°C ~ +60°C, derated performance for high-temperature enclosed cabinet environments
  • Dimensions/Weight: Heavy-duty metal enclosed cabinet mount unit, net weight approx. 30.4kg
  • Communication: Built-in DeviceNet communication port for PLC interconnection, parameter tuning and remote fault diagnosis
  • Standard Protection: Motor overload, phase loss, phase unbalance, short-circuit, stall, overheat and undercurrent protection
  • Startup Modes: Soft voltage ramp, current limit, kickstart for high-inertia heavy loads
  • Status Indicator: Integrated local LCD display for real-time motor current, voltage, fault code and operation parameter viewing
  • Lifecycle Status: Officially discontinued by Rockwell since July 31, 2014, hard-to-source genuine OEM spare unitRockwell A…

Key Advantages

  1. Multi-mode soft start & stop algorithm effectively cuts startup inrush current, protecting large motors, belts and gearboxes from mechanical shock damage
  2. Native DeviceNet industrial bus communication, seamless data linkage with Allen‑Bradley PLC and factory SCADA monitoring systems
  3. Comprehensive all-in-one motor protection suite covers all common 3-phase motor faults, eliminating the need for separate overload relay accessories
  4. Heavy-duty industrial metal housing with internal thermal cooling channel, stable 24/7 continuous operation under high-load dusty workshop environments

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