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CROUZET CONTROL

1 Phase Over/Under Current Relay MIC

For control of over-current in ac networks via internal current transformer. The unit requires supply voltage. The current conductor is run through the hole in the relay (current transformer) for measurement of the ac current. The current transformer hole is 10 mm. The MIC relay controls over-currents. The relay activates (closes) when the current exceeds the limit value that is shown on the front and drops out (opens) when the current drops below the limit value, minus the hysteresis value (static 15 % of the displayed limit value). When Y1 is connected to A1 (+), the relay function is inverted. The relay drops out when the current exceeds the limit value shown on the front and activates when the current drops below the hysteresis value (over-current). The relay can also be used for under-current function. Contact OEM Automatic's Panel Components product area about this function.

 

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  • Measurement range 2-20 A ac
  • Integrated current transformer
  • Over/under-current function
  • Measures true RMS

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Technical data

Approvals CE, CSA, GL, RoHS, UL
Breaking capacity 5A, 250V AC/DC
Current transformer diameter 10 mm
Function Over/Undercurrent
Lower limit 2A
Output Relay 1 pole C/O
Overload continuous max 100 A
Recovery time min 0,2 ms
Storage temperature max 70 °C
Storage temperature min -40 °C
Supply voltage 24-240V AC/DC
Temperature operational max 50 °C
Temperature operational min -20 °C
Time delay startup 0,5 s
Upper limit 20A
Weight 110 g

Measurements and connections

Control relay dimensions

Control relay connection

F1: Fast-blow fuse 100 mA (recommendation)

Technical illustrations

Control relay MIC over-current

MIC over-current
1: Limit value
2: Hysteresis
3: Closing upon exceeding limit value (Y1 and A1 not strapped)
4: Opening upon exceeding limit value (Y1 and A1 strapped)
5: Connection of operating voltage
6: Monitored current

Product description

For control of over-current in ac networks via internal current transformer. The unit requires supply voltage. The current conductor is run through the hole in the relay (current transformer) for measurement of the ac current. The current transformer hole is 10 mm. The MIC relay controls over-currents. The relay activates (closes) when the current exceeds the limit value that is shown on the front and drops out (opens) when the current drops below the limit value, minus the hysteresis value (static 15 % of the displayed limit value). When Y1 is connected to A1 (+), the relay function is inverted. The relay drops out when the current exceeds the limit value shown on the front and activates when the current drops below the hysteresis value (over-current). The relay can also be used for under-current function. Contact OEM Automatic's Panel Components product area about this function.

 

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