Single-Phase Over- or Undercurrent Monitoring

Product range overview
Over- or undercurrent monitoring with CM-SRS.1, CM-SRS.2 and CM-SRS.M

Characteristics of CM-SRS.1, CM-SRS.2 and CM-SRS.M current monitors

• Multifunction and single-function devices
• Devices with 1 or 2 c/o (SPDT) contacts rated 250 VAC at 4 A
• Measuring ranges up to 15 A AC/DC*
• Selectable open- (normally de-energized) or closed-circuit (normally energized) principle *
• Adjustable ON- or OFF-delay (0; 0.1 - 30 s)*
• Adjustable start-up delay (0; 0.1 - 30 s)*
• Adjustable switching hysteresis 3 - 30 %
• Wide- or single-supply voltage range
• LEDs for status indication
• Adjustment of threshold values (trip points), hysteresis and time delays via direct reading scales
• Setting and operation via front-face operating controls
• Configurable latching function*
• RMS measuring principle (any wave form)
• Frequency range of measured currents: DC and 15 Hz – 2000 Hz
• Integrated and snap-fitted front-face marker
• Sealable transparent cover (accessory)
• Adapter for screw (surface) mounting (accessory)
• External current transformers CM-CT for higher currents (accessory)
  * depending on device

• Monitoring of motor current consumption
• Monitoring of lighting installations and heating circuits
• Monitoring of hoisting gear and transportation equipment overload
• Monitoring of locking devices, electromechanical brake gear and lock rotor