150-F108NCD

The 150-F108NCD model from Allen Bradley serves as a reliable solid-state soft starter for three-phase motors. Engineered to support a current rating of 108 Amps, it is effective for motors ranging in power from 20 to 75 horsepower at 460 volts AC. This unit operates efficiently within a supply voltage spectrum of 200 to 600 volts AC, making it versatile for various industrial applications.

Designed with an open type configuration, the soft starter promotes effective management of motor start-up and operation. The control voltage ranges from 100 to 240 volts AC, which allows for easy integration into existing electrical systems. Frequency specifications are compliant with both 50 Hz and 60 Hz standards, providing flexibility depending on the operational environment.

The 150-F108NCD model includes a trip level that triggers at 117% of the motor full load current (FLC), offering essential overload protection. Additionally, it has a fault rating of 70 kA, ensuring robustness against short-circuit events (SCCR). Voltage tolerance for this starter is listed as -15% to +10%, giving it a degree of resilience against supply fluctuations.

Motor protection is enhanced with built-in overload capabilities and dv/dt protection achieved through an integrated RC snubber. This feature minimizes voltage spikes, safeguarding the motor during operation. The soft starter also provides a braking option supporting currents between 0 and 400%, allowing for efficient stopping actions. Additionally, an optional metal oxide varistor (MOV) for surge protection rated at 220 joules can be added, offering further safety for connected systems.