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Allen Bradley

Allen Bradley 154-A22NB Starting Torque Controller

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ManufacturerAllen Bradley

Part number154-A22NB

Voltage 380-480V AC

Current Rating 22A

Power Rating 11-15 kW (7.5-15 HP)

Phase 3-Phase

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CAGE: 9NK75

Reduces Starting Torque Surge Smooth Motor Acceleration 380-480V AC Input 22A Current Rating 11-15 kW Power Output Extends Equipment Life

Product description

The Allen Bradley 154-A22NB is a Starting Torque Controller (STC) designed to manage motor startup by reducing mechanical and electrical shock. It operates with a 3-phase input voltage of 380-480V AC at 50/60Hz and has an amperage rating of 22A. This controller supports motor power outputs from 11 to 15 kW (approximately 7.5 to 15 HP), ensuring smooth acceleration.

This STC is ideal for applications where high starting torque can cause system stress, such as conveyor systems, pump stations, and other industrial machinery. By controlling the initial torque and ramp-up time, it helps extend the life of motors and connected equipment.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Allen Bradley 154-A22NB STC. We provide reliable, quality components with a commitment to excellent service and competitive pricing, ensuring you have the parts you need for your industrial automation projects.

Technical specifications

Voltage	380-480V AC
Current Rating	22A
Power Rating	11-15 kW (7.5-15 HP)
Phase	3-Phase
Frequency	50/60 Hz
Type	Starting Torque Controller

Common applications

Conveyor Systems

Pump Stations

Industrial Machinery

Material Handling

HVAC Systems

Motor Control

Compatible systems

3-Phase Squirrel Cage Induction Motors

Also known as

154-A22NB, Allen Bradley STC, Starting Torque Control, Motor Soft Start

Replaces / compatible with

The 154-A22NB is a Starting Torque Controller (STC) from Allen-Bradley. It replaces direct-on-line (DOL) starting methods for smoother motor engagement.

Technical note

Expert tip

This unit has an initial torque setting of 30% applied over 4 seconds for controlled motor starts.

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Frequently asked questions

What is the function of the Allen Bradley 154-A22NB Starting Torque Controller?

The Allen Bradley 154-A22NB controls the initial torque and acceleration of a motor during startup, reducing mechanical and electrical stress. It is designed for 3-phase motors with a voltage range of 380-480V AC and a 22A rating.