150-F251NBRB Allen-Bradley SMC Flex Soft Starter 251A

150-F251NBRB Allen-Bradley SMC Flex Smart Motor Controller – 251 A Soft Starter

Core Technical Specifications

• Brand: Allen-Bradley
• Model: 150-F251NBRB
• 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
• Rated control supply voltage: 24 V at 50 Hz and 60 Hz AC, plus 24 V DC
• Overload current (line connected): 84 A
• Overload current (delta connected): 145 A
• Operating frequency: 50/60 Hz for power circuit
• Rated operational voltage: 200–480 V AC (-15%, +10%) per UL/CSA/NEMA
• Insulation voltage: Rated 500 V per IEC for power circuit
• Rated impulse voltage: 6000 V per IEC for power circuit
• Dielectric withstand: 2500 V per IEC for power circuit
• Repetitive peak inverse voltage: 1400 V per UL/CSA/NEMA
• DV/DT protection: RC snubber network for power circuit
• Transient protection: Metal oxide varistors, 220 J (optional)
• Input OFF-state current: <10 mA AC, <3 mA DC for control circuit
• 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
• Input ON-state current: 20 mA @ 120 V AC, 40 mA @ 240 V AC, 7.6 mA @ 24 V AC/DC
• Short-circuit protection device list: Standard fuse, circuit breaker, and high capacity time delay class CC/J/L
• High capacity available fault current, max: 70 kA @ 600 V with 800 A time delay Class J or L fuse for inside delta connected motors
• Standard available fault current, max: 70 kA @ 690 V for maximum FLC

Motor Power and Current Ratings

• Line connected motor power, max: 75 kW @ 230 V AC, 50 Hz, 3-phase
• Delta connected motor power, max: 400 Hp @ 575 V AC, 60 Hz, 3-phase
• 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
• Ampere tested European style, max: 6.9 gRB 73xxx630, 6.6URD33xxx700 @ 690 V for maximum FLC
• Ampere tested North American style, max: A070URD33xxx700 @ 690 V for maximum FLC
• Number of poles: 3
• Function: Single direction
• Internal bypass: Yes
• Power pole construction: Heatsink hockey puck thyristor modular design

Control, Protection, and Display Features

• Display: Integrated, true
• Control options: Pump control
• Trip classes: 10, 15, 20, and 30
• Trip current rating: 117% of motor FLC
• Integrated motor overload protection: Yes
• Short circuit protection device performance (SCPD) type: Type 1
• Standard controller feature: Status indication for stopped, starting, stopping, at speed, alarm, and fault
• Optional controller feature: SMB smart motor braking control with adjustable braking current from 0–400% of motor full-load current
• 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%)
• Steady state heat dissipation with control and fan power: 198 W

PTC Input and Tachometer Ratings

• 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 for auxiliary contacts
• Type of control circuit: Electromagnetic relay for auxiliary contacts
• Type of contacts: Programmable NO/NC for auxiliary contacts
• Rated operational current: 3 A @ 120 V AC, 1.5 A @ 240 V AC for auxiliary contacts
• Contact type: Auxiliary contacts 19/20 (Aux #1), 29/30 (Aux #2), 31/32 (Aux #3), and 33/34 (Aux #4)
• Make: 3600 VA for auxiliary contacts
• Break: 360 VA for auxiliary contacts

Installation and Wiring Guide

• Line/load side power terminals: Two M10 x 1.5 diameter holes per power pole
• Power terminal markings: NEMA, CENELEC EN50 012
• Control terminals: Clamping yoke connection, M3 screw clamp
• Enclosure: Open type
• Protection against electrical shock: IP2X (with terminal covers) per IEC for power circuit
• Control modules construction: Thermoset and thermoplastic moldings
• Metal parts construction: Plated brass, copper, or painted steel

Environmental and Physical Data

• Operating temperature: Open -5 to 50 °C (23 to 122 °F)
• Storage and transportation temperature: -20 °C
• Humidity: 5–95% (noncondensing)
• Altitude: 2000 m
• Pollution degree: 2
• EMC emission levels: Radiated emission Class A
• EMC immunity levels: Surge transient per EN/IEC 60947-4-2
• Shock: Operational 5.5 G
• Vibration: Operational 1.0 G peak, 0.15 mm (0.006 in) displacement
• Weight: 30.4 kg
• Width: 225 mm (8.86 in)
• Depth: 253.8 mm (9.99 in)
• Height: 560 mm (22.05 in)

Packaging List

• 1 x Allen-Bradley 150-F251NBRB SMC Flex Smart Motor Controller
• 1 x Integrated display module
• 1 x Installation and wiring guide
• 1 x Accessory terminal set

Shipping and Support

• We ship worldwide via FedEx, UPS, and DHL.
• We dispatch orders within 5 days after payment confirmation.
• We offer a 30-day return policy for eligible items.
• All products are brand new and original.
• We keep most items in stock for immediate fulfillment.

FAQ

• Q: What is the controller rating of the 150-F251NBRB?
  A: It handles 251 A and 100–200 Hp at 460 V AC.
• Q: What control voltage does this soft starter accept?
  A: It accepts 24 V AC/DC at both 50 Hz and 60 Hz.
• Q: Does the 150-F251NBRB include pump control?
  A: Yes, it offers pump control as a built-in control option.
• Q: What is the maximum delta connected motor power at 575 V AC?
  A: It supports up to 400 Hp for delta connected motors at 575 V AC.
• Q: What shipping methods do you use?
  A: We ship via FedEx, UPS, and DHL, and we dispatch within 5 days.
• Q: What is the return policy?
  A: We accept returns within 30 days for eligible products.

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

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