Carlo Gavazzi Motor Controller 3-Phase Soft Start/Stop RSE4825-CR1

Carlo Gavazzi Motor Controller Soft Start/Stop 3-Phase Motor, Control: 24-110VAC/VDC & 110-480VAC, Operational: 277/480VAC, 25A AC-53b, 2 Auxiliary Relay.

The RSE-CR1 is an AC semiconductor controller specifically designed to switch pump and compressor motors using start and stop ramps matched to the application. Initial torque is user adjustable with optional kickstart to allow matching of the start conditions with the motor load. The start ramp can be adjusted to last up to 20 s. Two stop ramps can be selected: pump or compressor. The pump setting produces an immediate drop in load voltage down to the level of the initial torque setting, followed by a gradual ramp down lasting up to 20 s. The compressor ramp down option drops the voltage immediately to zero, but this drop can be delayed by maintaining full load voltage for up to 20 s.

General Characteristics

• Soft starting and stopping of 3-phase squirrel cage motors.
• Ramp selector setting for Pump or Compressor motors.
• Initial Torque setting with kick-start option.
• Rated operational current: 25 AAC 53 b.
• Rated operational voltage: Up to 600 VAC, 50/60 Hz.
• Potential-free control input.
• LED- indications for power supply, ramping, bypassing relays, phase sequence and overheating.
• Integral over-temperature protection.
• Auxiliary relays for end of ramp, over-temperature and phase sequence alarms.
• Built-in transient over-voltage protection.