• RS Stock No. 703-5107
  • Manufacturer ABB
  • Mfr. Part No. 1SVR630884R3300 - CM-MPS.41
ABB Phase, Voltage Monitoring Relay with 2NO/2NC Contacts, 3 Phase, 300 → 500 V ac
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Product Details

CM-MPS .x1 Multifunctional Three-Phase Monitoring Relays

The CM-MPS.x1 are multifunctional monitoring relays for three-phase mains. They monitor the phase parameters phase sequence, phase failure, over- and undervoltage and phase unbalance. CM-MPS.11 and CM-MPS.21 also monitor the neutral for interruption. The threshold values for over- and undervoltage and phase unbalance are adjustable.,CM-MPS.11 and CM-MPS.21 are also suitable for monitoring single-phase mains. For this, all three external conductors (L1, L2, L3) have to be jumpered and connected as one single conductor.,Phase sequence monitoring has to be deactivated and the threshold value for phase unbalance has to be set to the maximum (25 %).

Monitoring of three-phase mains for phase sequence (can be switched off), phase failure, over- and undervoltage as well as phase unbalance
Interrupted neutral monitoring possible with CM-MPS.11 and CM-MPS.21
CM-MPS.11 and CM-MPS.21 can also be used to monitor single-phase mains
Threshold values for phase unbalance, over- and undervoltage are adjustable as absolute values
Tripping delay can be adjusted or switched off by means of a logarithmic scale
ON-delayed or OFF-delayed tripping delay selectable
Powered by the measuring circuit
True RMS measuring principle
2 c/o (SPDT) contacts
3 LEDs for status indication

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Monitoring ApplicationPhase, Voltage
Supply Voltage300 → 500 V ac
Contact Configuration2NO/2NC
Voltage SensitivityOvervoltage, Undervoltage
Electrical Phase3
Voltage Sensing Range300 → 500 V ac
Phase SensitivityPhase Failure, Phase Imbalance, Phase Sequence
Time Delay0 s, 0.1 → 30 s
Minimum Operating Temperature-25°C
Maximum Operating Temperature+60°C
Operating Temperature Range-25 → +60 °C
Minimum Voltage Sensed300 V ac
Dimensions100 x 22.5 x 78 mm
Maximum Voltage Sensed500V ac
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Discontinued product
ABB Phase, Voltage Monitoring Relay with DPDT Contacts, 3 Phase, 300 → 500 V ac
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Technical data sheets
  • RS Components

    Statement of conformity

    This statement confirms that the product detailed below complies with the specifications currently published in the RS media and has been subject to the strict quality conditions imposed by RS Components’ internal management systems. Furthermore and where applicable, it confirms that all relevant semiconductor devices have been handled and packed under conditions that meet the administrative and technical requirements of ANSI/ESD S20.20 and EN61340-5-1 electrostatics control standards.
    RS Stock No. 703-5107
    Name ABB Phase, Voltage Monitoring Relay with 2NO/2NC Contacts, 3 Phase, 300 → 500 V ac
    Manufacturer/Brand Name ABB
    Mfr. Part No. 1SVR630884R3300 - CM-MPS.41
    The foregoing information relates to product sold on, or after, the date shown below.
    Date Dec 12, 2017
    RS Components Sdn Bhd A-10-3A, Level 10, Empire Office Tower, Empire Subang, Jalan SS 16/1, 47500 Subang Jaya, Selangor, Malaysia
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