Product Overview
The Allen-Bradley 150-F625NBEB is a Bulletin 150 SMC-Flex solid-state smart motor controller designed for demanding industrial applications. With a robust 625 A rating and support for motors up to 500 Hp @ 460V AC, this open-type controller delivers precise, reliable motor starting and stopping. Its pump control option makes it ideal for pump applications where smooth acceleration and deceleration reduce water hammer and mechanical stress.
This controller accepts input voltages from 200 to 480V AC (3-phase, 50/60 Hz) and uses a 100...120V AC control supply. The SMC-Flex platform offers advanced features such as integrated motor overload protection, adjustable trip classes, and optional SMB smart motor braking—all in a single, compact unit.
Key Features & Benefits
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High Power Handling: 625 A continuous current, 500 Hp @ 460V AC, with line-connected motor power up to 800 Hp @ 600V AC.
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Flexible Control Options: Pump control option for soft start/stop, reducing surge pressures.
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Integrated Protection: Built-in motor overload protection, PTC sensor inputs, and DV/DT protection via RC snubber network.
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Multiple Trip Classes: Selectable trip classes 10, 15, 20, and 30 to match application needs.
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Optional Smart Braking: SMB feature provides adjustable braking current from 0...400% of motor FLC without extra equipment.
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Rugged Construction: Heatsink hockey puck thyristor design, IP00 protection, and wide operating temperature range.
Technical Specifications
| Parameter |
Value |
| Controller Type |
Bulletin 150, Solid State Controller (Soft Starter) |
| Enclosure Type |
Open |
| Input Line Voltage |
200...480V AC, 3-Phase, 50/60 Hz |
| Control Voltage |
100...120V AC |
| Rated Operating Voltage (Ue) |
200 V |
| Rated Control Supply Voltage (AC 50/60 Hz) |
110 V |
| Controller Rating |
625 A, 500 Hp @ 460V AC |
| Line Connected Motor Current |
208...625 A @ 600/Y/690V AC |
| Delta Connected Motor Current |
283...850 A @ 500/575V AC |
| Overload Current (Line Connected) |
208 A |
| Overload Current (Delta Connected) |
283 A |
| Trip Classes |
10, 15, 20, 30 |
| Trip Current Rating |
117% of motor FLC |
| Integrated Motor Overload Protection |
Yes |
| Heatsink Fan Rating |
150 VA @ 110/120V AC or 220/240V AC |
| DV/DT Protection |
RC snubber network |
| Repetitive Peak Inverse Voltage |
1400 V per UL/CSA/NEMA |
| Operating Frequency |
50/60 Hz |
| Line Connected Motor Power (Max) |
800 Hp @ 600V AC, 60 Hz |
| Delta Connected Motor Power (Max) |
900 Hp @ 575V AC, 60 Hz |
| Rated Impulse Voltage |
6000 V per IEC |
| Dielectric Withstand |
2500 V per IEC |
| Transient Protection |
Metal oxide varistors (220 J, optional) |
| Insulation Voltage |
500 V per IEC |
| Rated Operational Voltage |
200...480V AC (-15%, +10%) per UL/CSA/NEMA |
| Available Fault Current (Standard) |
70 kA @ 690V |
| Available Fault Current (High Capacity) |
74 kA @ 600V (with Class J/L fuses) |
| Short-Circuit Protection Device |
Type 1 (standard fuse, circuit breaker, high-capacity time-delay Class CC/J/L) |
| Control Circuit Input OFF-state Current |
<10 mA AC, <3 mA DC |
| Input OFF-state Voltage (Max) |
50V AC @ 10V DC/12V AC |
| Input ON-state Voltage (Min) |
85V AC @ 19.2V DC/20.4V AC |
| Input ON-state Current |
20 mA @ 120V AC / 40 mA @ 240V AC / 7.6 mA @ 24V AC/DC |
| PTC Input Ratings |
Max 6 sensors, 30V open, <7.5V @ 4 kΩ, 1500 Ω cold resistance |
| Response Time (PTC) |
800 ms |
| Tachometer Input |
0...5V DC @ 4.5V DC = 100% Speed |
| Auxiliary Contacts |
1 (19/20, 29/30, 31/32, 33/34) – programmable NO/NC |
| Rated Operational Current (Aux) |
3 A @ 120V AC, 1.5 A @ 240V AC |
| Make/Break Capacity (Aux) |
3600 VA / 360 VA |
| Steady State Heat Dissipation |
446 W |
| Operating Temperature |
-5 to 50 °C (23 to 122 °F) |
| Storage Temperature |
-20 °C |
| Humidity |
5...95% (noncondensing) |
| Altitude |
2000 m |
| Pollution Degree |
2 |
| Protection Class |
IP00 (open) |
| EMC Emission |
Class A (radiated) |
| EMC Immunity |
Surge transient per EN/IEC 60947-4-2 |
| Shock |
4 G |
| Vibration |
1.0 G peak, 0.15 mm displacement |
| Width |
596.9 mm (23.50 in) |
| Depth |
346.2 mm (13.63 in) |
| Height |
1041.1 mm (41 in) |
| Weight |
179 kg |
Industry Applications
The 150-F625NBEB excels in pump, fan, and compressor applications where controlled acceleration and deceleration are critical. In water treatment plants, the pump control option reduces pressure surges, extending pipeline and valve life. In HVAC systems, it provides soft starting for large chillers and fans, minimizing electrical stress on the supply network.
For high-inertia loads like conveyors and crushers, the SMC-Flex controller ensures smooth, torque-controlled starts without mechanical shock. Its wide voltage range and high fault-current ratings make it suitable for heavy industrial environments.
Installation & Setup Guidance
Mount the controller in a clean, well-ventilated area, respecting the IP00 open-type enclosure requirements. Ensure adequate clearance for airflow around the heatsink. Connect power wiring to the line and load terminals (two 13.5 mm diameter holes per pole) using appropriate lugs. For the control circuit, use the M3 screw clamp yoke connections. Set the trip class and PTC parameters according to motor data. Verify the control voltage (100...120V AC) and input supply before energizing.
Maintenance & Reliability
Regularly inspect the cooling fan and heatsink for dust accumulation. Check torque on power terminals periodically. Monitor operating temperature and humidity (5...95% noncondensing). The RC snubber network protects against DV/DT, but verify transient protection varistors if installed. With proper maintenance, the SMC-Flex provides years of reliable service.
Selection Guide & Purchasing Advice
Before ordering, confirm your motor's full-load current (FLC) and line voltage. The 150-F625NBEB supports line-connected motors up to 625 A and delta-connected up to 850 A. Choose the appropriate short-circuit protection device (fuse or breaker) rated for the available fault current. For applications requiring fast stopping, consider the optional SMB braking feature. PLC Source PRO offers genuine Allen-Bradley 150-F625NBEB controllers with fast shipping and expert support.