S2 CMR1

Suitable for Panels in Following Applications:

  • Submersible Pump Control Panels.
  • Air Handling Unit Fans.
  • Belt Conveyor Motor panels for zero speed sensing.

Overview

  • Phase Failure
  • Unbalance
  • Phase sequence
  • Overloading and Dry running Auto / Manual Reset
  • Adjustable current trip settings
  • Selectable overload characteristics
  • 1 CO/2 CO output relay

Description

Technical Specification

Supply Voltage

  • System 100-120/220-240/380-440V AC ± 20%, 48-63 Hz
  • Auxillary 100-120/220-240VAC±20%, 24V DC+10%-15%

Input

  • Input

Output Relay Contact

  • Output Relay Contact 2 CO

Trip Setting

  • Phase to phase unbalance 50% of Motor Current (Fixed)
  • Under current (Dry running)NA 40% to 80% of set current
  • Overload As per inverse time characteristics
  • UV/OV N.A.

Trip Time Delay

  • On phase failure 4 Sec ± 1% Sec (Fixed)
  • For overloading As per Inverse Time Characteristics 2/5/10 Sec. (Selectable)
  • UV/OV RP For N.A.

Resetting 

  • Resetting Auto / Mannual

Weight

  • Weight 140 gms 

Dimensions (mm)

  • Overall (L x W x D) 90 x 35 x 60
  • Mounting (L x W) 35 mm Rail Mounting

Note:

  • Wherever not specified Contact Rating : 5A @ 230 V AC (resistive)