Simply thread the wire to the load through the RO series sensor and the self powered sensor activate the output when the current exceeds the set point.
With one sensor you can monitor heater elements on all three phases. This is done by detecting current unbalance between the phases with this configuration - be very careful to follow the diagram exactly - there are 3 loops from the delta triangle - you can not thread the 3 supply lines and get the same result!
Monitoring the phase imbalance can let us detect burned out heater elements, phase supply problems that might damage motors or other equipment. The BO series sensor would activate on an imbalance that exceeds the set-point.
Another way of seeing the phase imbalance is the 4-wire-Y. Activates on imbalance the exceeds the set point.
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|BO Series Current Sensing Switch|
|Set point current range (specify with order)|| 5 to 100A Full Scale|
|Set point accuracy||+/-15% (5% on adjustable units) 10% dead-band|
| Relay Output version -RELAY
||4A @ 220 Vac|
| TRIAC Output version -TRIAC
||2A @ 220 Vac|
| Transistor Output version -OC
||20 mA 24V (Pin 8 negative.; Pin 6 positive)|
|Ambient Operating Temperature||0 C to 60 C|
|Octal Case Size|| 60.7[2.39] X 44.85[1.77] X 70.75[2.79]mm[inches] (excluding octal pins) |
With module in socket - 105[4.14] mm[inch] total height
|Pass through opening|| 22.2mm [0.875"] |
Optional 31.7mm [1.25"] -LD large diameter opening available
| Adjustable versions available -ADJ
|| Allows a 2:1 range ( Full scale current of 10A adjusts from 5 - 10A)|
|Relay contacts||5A@30Vdc/120Vac see drawing below for pin out|
|Relay power supply||12V or consult factory|
 - denotes legacy units
For applications that need a settable current point the adjustment option, a trim potentiometer is provided that covers a 2:1 range. ( for example 5 - 10Aac ).
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This information may have errors; It is not permissible to be read by anyone who has ever met a lawyer.
Use is confined to Engineers with more than 370 course hours of electronic engineering for theoretical studies.
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