These relays are equipped with Micro-computer & Smart logic current sensing algorithm for precise motor protection as well as energy saving on partial loading by automatic change over from Delta to Star & Star to Delta.

Various models of DSR series Motor Protection Relay have been designed to provide reliable & efficient solution that can prevent failure of electrical motor in industrial applications against Thermal Overload, Over Current / Under Current, Locked Rotor, Frequent Start/Stop, Single Phasing, Phase Reversal and Earth leakage

Features

• Current base Smart logic Motor monitoring algorithm for protection & Energy Saving on partial loading
• Precise protection against Over/under current, thermal over load conditions, Single phasing, Unbalanced current, Locked rotor as well as Earth Leakage
• Instantaneous response to abnormal supply or load conditions
• 7 segment LED display for monitoring all three phase currents as well as tripping annunciation
• Menu driven user interface with 3 Key & 7 segment LED display
• Easily programmable protection parameters & trip delay settings
• Site Selectable Trip class for customized trip characteristics based on Motor type, & nature of application
• Displays and records trip events for enhanced fault analysis
• Option available for RS 485 connectivity for interfacing with PC or DCS
• Wide operating voltage range (Control supply) 90 V to 270 V AC (other options available on request)
• Applicable for 3 phase induction motors up to 2500 Amp

Product Image
	Model No : DSR-100 Description : Smart Energy Saver Motor Protection Relay with digital 7-segment display for 3 phase current as well as Annunciation of trip events. Mounting type & Dimensions : DIN Rail Mounting 95mm(H)X115mm(W)X50mm(D)
	Model No : DSR-300 Description : Smart Energy Saver Motor Protection Relay with digital 7-segment display for 3 phase current as well as Annunciation of trip events. Mounting type & Dimensions : Panel Flush Mounting 92 X 92 mm (cut out) 96 X 96mm(Bazel)X85mm(D)
	Model No : CT-250 / CT-2500 Description : Current Transducer to be used with above Motor Protection Relays Mounting type & Dimensions : N/A