Soft starts are cool answer for HVAC
A
Carlo Gavazzi product story
Edited by the Engineeringtalk editorial team
Oct 30, 2003
A new family of compact high-performance soft starters can prevent voltage dips, surges and burn-outs in HVAC and other environment control applications.
A new family of compact high-performance soft starters can prevent voltage dips, surges and burn-outs in HVAC and other environment control applications.
The RSHR family from Carlo Gavazzi offers drive power from 7.5 to 22kW, yet has the same dimensions as previous 11kW soft starters, providing a space saving solution to heating, air-conditioning and refrigeration soft start/stop applications.
Each unit includes six LED status indicators and alarms for motor overtemperature, device overtemperature, ramping and end of ramping stages as well as phase-loss and wrong phase sequence.
The new soft start is operational up to 60C and incorporates a temperature sensor inside each device.
In the event of overheating motor operation is interrupted and an alarm sounds, thus preventing burnouts and increasing the lifetime of the unit.
RSHR is constructed with an external heatsink, allowing for efficient cooling of electronic components to give a higher number of starts per hour.
Ramp settings are made using rotary knob adjustments for start/stop ramp times and initial torque.
RSHR is touch protected to IP20 and is designed in conformance with IEC60947-4-2 and industrial EMC regulations.
Options are available for either DIN-rail or chassis mounting.
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