150-F251NBRD Allen-Bradley SMC Flex Soft Starter

150-F251NBRD SMC Flex Smart Motor Controller – 251 A Soft Starter by Allen-Bradley

Key Technical Specifications

• Brand: Allen-Bradley
• Model: 150-F251NBRD
• Series: SMC Flex
• Controller type: Soft starter
• Controller rating: 251 A, 100–200 Hp @ 460 V AC
• Control voltage: 24 V AC/DC
• Rated operating voltage Ue: 200 V
• Line connected motor current: 84–251 A @ 600/Y/690 V AC, 3-phase
• Delta connected motor current: 145–435 A @ 500/575 V AC, 3-phase
• Overload current (line): 84 A
• Overload current (delta): 145 A
• Trip current rating: 117% of motor FLC
• Trip classes: 10, 15, 20 and 30
• Operating frequency: 50/60 Hz for power circuit
• Rated impulse voltage: 6000 V per IEC for power circuit
• Dielectric withstand: 2500 V per IEC for power circuit
• Insulation voltage: Rated 500 V per IEC for power circuit
• Rated operational voltage: 200–480 V AC (-15%, +10%) per UL/CSA/NEMA
• DV/DT protection: RC snubber network for power circuit
• Repetitive peak inverse voltage: 1400 V per UL/CSA/NEMA
• Transient protection: Metal oxide varistors, 220 J (optional)
• Short-circuit protection device list: Standard fuse, circuit breaker, and high capacity time delay class CC/J/L
• High capacity available fault current: 70 kA @ 600 V, max 800 A time delay Class J or L fuse for inside delta motors
• Standard available fault current: 70 kA @ 690 V for maximum FLC
• Integrated motor overload protection: True
• Internal bypass: True
• Function: Single direction

Control and Monitoring Features

• With display: True
• Control options: Brake control
• Standard controller feature: Status indication – stopped, starting, stopping, at speed, alarm, and fault
• Optional controller feature: SMB smart motor braking control – provides motor braking without extra equipment
• Braking current: Adjustable from 0–400% of motor full-load current
• Number of sensors: Max 6 for PTC input ratings
• Voltage at PTC terminals (RPTC = open): Max 30 V
• Voltage at PTC terminals (RPTC = 4 kΩ): Max <7.5 V
• Response time: 800 ms for PTC input ratings
• Cold resistance of PTC sensor chain: Max 1500 Ω
• Short circuit trip resistance: 25 Ω ± 10 Ω
• Response resistance: 3400 Ω ± 150 Ω
• Reset resistance: 1600 Ω ± 100 Ω
• Tachometer input: 0–5 V DC, 4.5 V DC = 100% speed

Auxiliary Contacts and Control Circuit

• Number of contacts: 1 for auxiliary contacts
• Type of current: AC for auxiliary contacts
• Conventional thermal current (Ith): AC/DC 5 A
• Type of control circuit: Electromagnetic relay
• Type of contacts: Programmable NO/NC
• Rated operational current: 3 A @ 120 V AC, 1.5 A @ 240 V AC
• Input ON-state current: 20 mA @ 120 V AC / 40 mA @ 240 V AC, 7.6 mA @ 24 V AC/DC
• Input OFF-state current: <10 mA AC, <3 mA DC
• Input OFF-state voltage, max: 50 V AC @ 10 V DC / 12 V AC
• Input ON-state voltage, min: 85 V AC @ 19.2 V DC / 20.4 V AC
• Contact type: Auxiliary contacts 19/20 (Aux #1), 29/30 (Aux #2), 31/32 (Aux #3), 33/34 (Aux #4)
• Make: 3600 VA for auxiliary contacts
• Break: 360 VA for auxiliary contacts

Power Supply and Control Module Ratings

• Transformer control module: 75 VA @ 100–240 V AC (-15%, +10%)
• Heatsink fan rating: 40 VA @ 110/120 V AC or 220/240 V AC
• Inrush current control module: 5 A @ 24 V DC (-15%, +10%)
• Transient watts control module: 60 W @ 24 V DC (-15%, +10%)
• Steady state watts control module: 24 W @ 24 V DC (-15%, +10%)
• Inrush time control module: 250 ms @ 24 V DC (-15%, +10%)
• Transient time control module: 500 ms @ 24 V DC (-15%, +10%)
• Allen-Bradley power supply control module, min: 1606-XLP50E @ 24 V DC (-15%, +10%)
• Rated control supply voltage at AC 50 Hz: 24 V
• Rated control supply voltage at AC 60 Hz: 24 V
• Rated control supply voltage at DC: 24 V

Environmental and Mechanical Data

• Steady state heat dissipation with control and fan power: 198 W
• Storage and transportation temperature: -20 °C
• Humidity: 5–95% (noncondensing)
• Operating temperature: Open: -5 to 50 °C (23 to 122 °F)
• Protection against electrical shock: IP2X (with terminal covers) per IEC for power circuit
• EMC emission levels: Radiated emission – Class A
• EMC immunity levels: Surge transient per EN/IEC 60947-4-2
• Altitude: 2000 m
• Pollution degree: 2
• Shock: Opsal 5.5 G
• Vibration: Opsal 1.0 G peak, 0.15 mm displacement
• Weight: 30.4 kg
• Width: 225 mm (8.86 in)
• Depth: 253.8 mm (9.99 in)
• Height: 560 mm (22.05 in)
• Enclosure: Open type
• Number of poles: 3
• Power pole construction: Heatsink hockey puck thyristor modular design
• Control modules construction: Thermoset and thermoplastic moldings
• Metal parts construction: Plated brass, copper, or painted steel

Terminals and Wiring

• Power terminal markings: NEMA, CENELEC EN50 012
• Control terminals: Clamping yoke connection, M3 screw clamp
• Line/load side power terminals: Two M10 x 1.5 diam holes per power pole
• Ampere tested European style, max: 6.9 gRB 73xxx630, 6.6 URD33xxx700 @ 690 V for maximum FLC
• Ampere tested North American style, max: A070URD33xxx700 @ 690 V for maximum FLC
• Short circuit protection device performance (SCPD) type: Type 1
• Utilization category: MG 1 per UL/CSA/NEMA for power circuit

Installation Guide

• Mount the controller vertically on a flat, vibration-free surface inside an enclosure.
• Keep a minimum clearance of 100 mm above and below the heatsink for airflow.
• Connect line and load power cables to the M10 terminals with proper torque.
• Use Class J or L time-delay fuses for short-circuit protection as recommended.
• Wire the 24 V AC/DC control circuit to the clamping yoke terminals with M3 screws.
• Verify the control voltage matches the nameplate before applying power.
• Set the trip class and overload current according to the motor full-load current.

Package List

• One Allen-Bradley 150-F251NBRD SMC Flex smart motor controller
• One display module (pre-installed)
• One terminal cover set for IP2X protection
• One instruction sheet for wiring and setup

Shipping Methods

• FedEx
• UPS
• DHL

FAQ

• Q: What is the controller rating of the 150-F251NBRD?
  A: The 150-F251NBRD rates 251 A and delivers 100–200 Hp at 460 V AC.
• Q: Does this soft starter include internal bypass?
  A: Yes, the unit includes internal bypass for efficient continuous operation.
• Q: What trip classes does this model support?
  A: It supports trip classes 10, 15, 20, and 30.
• Q: Can I use this controller for delta-connected motors?
  A: Yes, it handles delta connected motor current from 145–435 A at 500/575 V AC.
• Q: What is the operating temperature range?
  A: The open-type operating temperature ranges from -5 to 50 °C.
• Q: How much does the 150-F251NBRD weigh?
  A: The unit weighs 30.4 kg.
• Q: Is the product new and in stock?
  A: Yes, we offer brand new original units and keep them in stock.
• Q: How fast do you ship?
  A: We ship within 5 days using DHL, FedEx, or UPS.
• Q: What is the return policy?
  A: We support 30-day returns.

Contact Information Inquiries: sales@nex-auto.com , +86 153 9242 9628

Partner NexAuto Technology Limited : https://www.nex-auto.com/