Brochure
PowerPact H-, J-, and L-Frame Circuit Breakers
Trip Curves
215
02/2016
© 2011–2016 Schneider Electric
All Rights Reserved
Figure 93: H- and J-Frame Motor Circuit Protector
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POWERPACT H/J FRAME MOTOR CIRCUIT PROTECTOR
WITH AUTO SETTINGS
CHARACTERISTIC TRIP CURVE NO. 045-2
The time-current curve information represents the typical response and is to
be used for application and coordination purposes only.
Curves apply from -30C to +60C ambient temperature.
Notes:
• The MCP is an instantaneous only breaker that detects the peaks of the
current. In order to trip within the specified time-current levels, consecutive
peaks of the current must exceed the selected setting’s threshold.
• Total clearing times shown include the response times of the trip unit, the
circuit breaker opening, and the extinction of the current.
• The time-current curve represents single-phase to three-phase fault currents.
MOTOR CIRCUIT PROTECTOR INFORMATION
Suffix # FLA Adjustments
M71 1.5 3 6 8 11 14 17 20 25
M72 14 17 21 24 27 29 32 36 42
M73 30 35 41 46 51 56 63 71 80
M74 58 71 79 86 91 97 110 119 130
M75 114 137 145 155 163 172 181 210 217
Suffix #
Auto Instantanious Trip Dampening For Motor
Setting Point % FLA In-Rush % FLA
M71, M72
Auto 1 800 1300
M73, M74
Auto 2 1100 1700
6x 600 1300
Auto 1 800 1300
M75 Auto 2 1100 1100 – 1700
6x 600 1100 – 1300
Suffix # Nominal Fault Current Level Maximum Clearing Time
M71 670
M72 1150
M73 2150 1/2-1 Cycle
M74 3450
M75 3600
© 2006 Schneider Electric all rights reserved
Curve No. 0045TC0602
August 2006
Drawing No. 48095-045-02
TM