Compact soft starter
3x400 VAC, 55-75 A, 10-12 KW | BSxT line Cognito Quam Electrotechnologies Ltd

BSFT and BSTT soft starters

The BSxT soft starters accelerate and decelerate (BSFT models only) simple AC induction motor loads smoothly, save energy and reduce system wear and tear.

They are partly protected, digitally-controlled and programmable units. They are simple to install and are effectively employed in cost sensitive applications driving:
* Transport systems (conveyors, escalators, roller tables etc.) for low inertia loads,
* Pumps,
* compressors,
* Hydraulic lift pumps,
* Inelastic transmissions (gear trains, high-ratio belt systems etc.), and
* Ventilator fans.

Main features of the line include:
* Starting current and cooling circuit design provides for 55-75 A (starting, per phase), 13-16 HP/10-12 kW loads. The employed 1200 VDC power circuit allows use in up to 3x430 VAC systems.
* Integrated bypass relay minimizes solid state switch losses.
* Electronic protection against over/under-voltage, phase sequence and integrity, noise and line disturbances and internal overheating.
* Activated after power-up (BSTT models) or via individually powered, isolated, versatile two input user/control interface (BSFT models).
* Available ramp profiles include linear torque, boosted torque, linear voltage (BSTT) and sine voltage (BSTT).
* Selection of ramp profile, deceleration (BSFT models), starting value and duration by DIP switch.
* Galvanically isolated bit outputs "Ready" (BSFT) or "Motoring" (BSTT).
* Small 24 VDC power supply to power a local sensor or other automation device.
* Installation-friendly, robust, space-saving "bookcase" style enclosure.
* Self powered from the 3x400 VAC line.