Brochure

PowerPact H-, J-, and L-Frame Circuit Breakers
Motor Circuit Protection
51
02/2016
© 2011–2016 Schneider Electric
All Rights Reserved
PowerPact H-, J-, and L-Frame with Micrologic™ Trip Units Motor-Protection Range
PowerPact H-, J-, and L-frame circuit breakers with Micrologic trip units can be used to create motor-
feeder solutions comprising two or three devices. The protection devices are designed for continuous
duty at 104°F (40°C).
Three-device solutions
• 1 PowerPact circuit breaker with Micrologic 1.3 M trip unit
• 1 contactor
• overload relay
Two-device solutions
• 1 PowerPact circuit breaker with a Micrologic 2 M electronic trip unit.
• 1 contactor
Table 49: Motor Protection Specifications
Type of Motor Protection
3 Devices (Circuit Breaker +
Contactor + Overload Relay)
2 Devices (Circuit Breaker +
Contactor)
PowerPact H-, J-, or L-frame circuit breaker PowerPact L-frame 400/600 A
PowerPact H-, J-, and L-Frame 100–
600 A
Type 2 coordination with Contactor + overload relay Contactor
Trip Unit Type
Micrologic 1.3 M
Electronic Trip Unit
Micrologic 2 M
Electronic Trip Unit
Overload Relay
Separate X
Built-in, Class
5X
10 X
20 X
Protection functions of PowerPact H-, J-, and L-frame circuit breaker
Short-circuits X X
Overloads X
Special motor functions Phase unbalance X
Isd (x FLA)
190
310
290
270
250
230
210
50
FLA (A)
Class.
348
330