Configured for high-power induction motor acceleration control and braking execution in industrial distribution architectures, the Allen-Bradley 150-F970NBED (150-F970 Solid-State Soft Starter) provides direct physical/electrical execution. It directly manages continuous output ratings up to 970 A across 200...480 VAC three-phase utility lines. The internal power stack uses antiparallel silicon-controlled rectifiers (SCRs) to modulate voltage waveforms, suppressing high electromechanical torque transients during motor starting sequences and providing DC injection during active braking stops.

Part Number Structure & Nomenclature

• 150-F: Identifies the Bulletin 150 SMC Flex solid-state soft starter platform.

• 970: Specifies the 970 A nominal continuous current capacity rating.

• N: Standard open enclosure chassis (IP00 rated) intended for panel cabinet assembly.

• B: Operating main supply line voltage code covering 200...480 VAC, 3-Phase, 50/60 Hz.

• E: Control circuit operating power voltage rating specified for 100...120 VAC (50/60 Hz).

• D: Factory-fitted internal option board designated for Smart Motor Braking (SMB) control algorithms.

Electrical & Physical Specifications

Deterministic Industrial Network Communications

The soft starter links to ControlLogix and CompactLogix automation architectures through optional DPI communication cards. Interfacing via EtherNet/IP deterministic networks enables direct backplane synchronization of process telemetry, including real-time thermal capacity utilization and operating current data. Upgraded controller logic ensures strict firmware flash compatibility across installed control modules, ensuring accurate SCR firing angle timing during high-current starting or controlled deceleration operations.

Fulfillment Package Content

• 1 x Allen-Bradley 150-F970NBED SMC Flex Soft Starter Chassis

• 1 x Factory-Installed Internal Braking Control Option Card

• 1 x Hardware Lug Protective Cover Set

• 1 x Panel Mounting Template and Wiring Guide Manual

Electrical Panel Mounting & Cabinet Wiring

• Enclosure Installation Rules

  • Mount the unit vertically onto an unpainted grounded steel plate inside an IP54 or NEMA 12 panel enclosure.

  • Maintain a clear vertical spacing of at least 150 mm above and below the starter chassis to support convective heat transport.

• Wiring and Interference Prevention

  • Segregate 100...120 VAC control wiring from main 3-phase high-voltage power conduits.

  • Connect the primary earth lug directly to the central panel earth bus bar via a heavy-gauge copper bonding jumper.

Technical Questions and Answers

• What input control voltage does the 150-F970NBED logic terminal block require?

  The control circuit terminal block requires a dedicated single-phase AC control voltage input rated at 100...120 VAC at 50/60 Hz.

• What function does the integrated D suffix option perform?

  The D option designates an integrated braking option module designed for Smart Motor Braking (SMB) without external electromechanical brakes.

• Can the 150-F970NBED starter be mounted in an outdoor environment without a cabinet?

  No, the unit features an Open IP00 frame rating and must be housed inside a protective industrial enclosure.

• How does the unit manage thermal dissipation when the motor reaches full speed?

  Internal bypass contactors close automatically once full voltage output is achieved, bypassing the power SCRs to lower operating heat.

• Is the unit capable of updating internal control logic via network tools?

  Yes, the controller supports firmware flash compatibility using standard DPI fieldbus communication adapters.

• What protective functions does the internal electronic module execute?

  It executes electronic motor overload protection, SCR shorted-gate monitoring, supply phase unbalance checks, and thermal over-temperature limits.

• Are low-voltage control terminals isolated from high-voltage main lines?

  Yes, internal isolation transformers and optocouplers provide galvanic separation between low-voltage control terminals and line power.

• How are trip logic conditions cleared following an emergency stop fault?

  Faults are cleared by applying a signal to the reset terminal, cycling control power, or issuing a network reset command over EtherNet/IP.