Issue:
Phase currents on a W frame NW breaker are off by a factor of two
Product Line:
Circuit Breakers
Resolution:
A W frame, Masterpact NW breaker with a Y frame sensor plug will read 2x the actual phase current.
A Y frame, Masterpact NW breaker with a W frame sensor plug will read 1/2 the actual phase current.
Solution is to replace the incorrect sensor plug with the correct one.
Phase currents on a W frame NW breaker are off by a factor of two
Product Line:
Circuit Breakers
Resolution:
A W frame, Masterpact NW breaker with a Y frame sensor plug will read 2x the actual phase current.
A Y frame, Masterpact NW breaker with a W frame sensor plug will read 1/2 the actual phase current.
Solution is to replace the incorrect sensor plug with the correct one.
Y Frame Sensor Plugs | |
Amps | Cat Number |
2000 | S47821 |
2500 | S47822 |
3000 | S48826 |
3200 | S47823 |
4000 | S47824 |
W Frame Sensor Plugs | |
Amps | Cat Number |
2000 | S33982 |
2500 | S33983 |
3000 | S48825 |
3200 | S33984 |
4000 | S47820 |