Allen Bradley 150-F251NCRD SMC Flex Smart Motor Controller: 251A rated current, 200-480V input, 100-240V control, advanced diagnostics, and protection for demanding applications.
Product Model150-F251NCRD
Product ID108179
Stock on Request
Last updated: 8/29/2026
Key Features
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1. High Current RatingThe Allen Bradley 150-F251NCRD SMC Flex Smart Motor Controller supports a high rated current of 251A, making it suitable for heavy-duty applications.
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2. Versatile Voltage RangeWith an input voltage range of 200-480V AC and a control voltage range of 100-240V AC, this controller is adaptable to various electrical systems.
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3. Advanced DiagnosticsEquipped with a built-in LCD display and keypad, the controller offers optimized configuration, advanced performance diagnostics, and protection features.
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4. Modular DesignThe modular design simplifies installation and commissioning, reducing the complexity of setup and ensuring faster deployment.
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Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
Parameter
Value
Parameter
Value
Control Voltage
24V AC/DC
Controller Rating
251 A 100-200Hp @ 460V AC
Product Family
SMC Flex
With display
Yes
Voltage type for actuating
AC/DC
Rated operating voltage Ue
200
5. Reliability and ProtectionThe controller includes electronic overload protection and integrated bypass, ensuring reliable operation and minimizing downtime in demanding applications.
Rated control supply voltage at AC 50 Hz
24 V
Rated control supply voltage at AC 60 Hz
24 V
Overload current for line connected devices
84 A
Overload current for delta connected devices
145 A
Controller type
Soft starter
Control options
Brake control
Trip classes
10, 15, 20 and 30
Trip current rating
117% of motor FLC
Transformer control module
75VA @ 100...240V AC (-15%, +10%)
Heatsink fan rating
40VA @ 110/120V AC or 220/240V AC
DV/DT protection
RC snubber network for power circuit
Repetitive peak inverse voltage rating
1600V per UL/CSA/NEMA for power circuit
Operating frequency
50/60 Hz for power circuit
Line connected motor power, max
75 kW @ 230V AC @ 50Hz, 3-phase
Delta connected motor power, max
400Hp @ 575V AC, 60 Hz, 3-phase
Rated impulse voltage
6000V per IEC for power circuit
Dielectric withstand
2500V per IEC for power circuit
Line connected motor current
84...251 A @ 600/Y/690V AC, 3-phase
Delta connected motor current
145...435A @ 500/575V AC, 3-phase
Ampere tested european style, max
6,9 gRB 73xxx630 6,6URD33xxx700 @ 690V for maximum FLC
Ampere tested north american style, max
A070URD33xxx700 @ 690V for maximum FLC
Transient protection
Metal oxide varistors: 220 J (optional) for power circuit
Insulation voltage
Rated 500V per IEC for power circuit
Rated operational voltage
200...600V AC (-15%, +10%) per UL/CSA/NEMA for power circuit
Input OFF-state current
<10 mA AC, <3 mA DC for control circuit @ input OFF-state voltage
Short-circuit protection device list
Standard fuse, circuit breaker and high capacity time delay class CC/J/L
Number of contacts
1 for auxiliary contacts
High capacity available fault current, max
70kA @ 600V, maximum current 800 A time delay Class J or Class L fuse for inside delta connected motors
Type of current
AC for auxiliary contacts
Conventional thermal current (Ith)
AC/DC: 5 A for auxiliary contacts
Type of control circuit
Electromagnetic relay for auxiliary contacts
Type of contacts
Progmable NO/NC for auxiliary contacts
Utilization category
MG 1 per UL/CSA/NEMA for power circuit
Standard controller feature
Status indication: stopped, starting, stopping, at speed, alarm and fault
Standard available fault current, max
70kA @ 690V for maximum FLC
Optional controller feature
SMB smart motor braking control: provides motor braking without additional equipment for applications that require the motor to stop quickly, braking current is adjustable from 0...400% of the motorâs full-load current rating
Rated control supply voltage at DC
24 V
Integrated motor overload protection
Yes
Short circuit protection device performance (SCPD) type
