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    What is the operating voltage tolerance, catalog numbers, and clearing times for the Masterpact NT and NW shunt trip and shunt close coils?

    Issue:  
    What is the operating voltage tolerance, catalog numbers, and clearing times for the Masterpact NT and NW shunt trip and shunt close coils?

    Product Line:
    Masterpact NT NW

    Resolution:
    Shunt trip:  operating threshold is 0.7 to 1.1 Vn (nominal voltage)
    Shunt close:  operating threshold is 0.85 to 1.1 Vn
    Catalog numbers are the same for MX and MN (shunt trip and shunt close) devices; function is determined by placement in the breaker.
     
    Voltage 50/60 Hz  T-, W-, & Y-Frame Fixed  T-Frame Drawout  W- & Y-Frame Drawout 
    12 dc  S47359  S33809  S48490 
    24–30 ac/dc  S47360  S33810  S48491 
    48–60 ac/dc  S47361  S33811  S48492 
    100–130 ac/dc  S47362  S33812  S48493 
    200–240 ac/dc  S47363  S33813  S48494 
    277 ac  S47364  S33814  S48495 
    380–480 ac  S47365  S33815  S48496 

    MX operating time at Vn:  50 ms ±10 (NW and NT)
    XF operating time at Vn:  
    70 ms ±10 (NW ≤ 4000 A)
    80 ms ±10 (NW > 4000 A)
    55 ms (NT)

    NOTE:  Shunt trip (MX) and shunt close (XF) circuits must be energized for minimum of 200 ms. In other words, don't use an impulse signal. Use a signal of at least 200ms.

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