Built for 3-phase service entrances, the EP3175 is a 175A main circuit breaker that delivers essential overcurrent protection. It features a standard 10kAIC interrupting rating at 240VAC and utilizes proven thermal-magnetic trip technology. This plug-on breaker mounts into Siemens EQ III, PL, and ES series load centers. It is the official replacement for the discontinued MBK3175, making it ideal for maintaining existing panelboards. This HACR-rated component accepts 1 AWG to 300 kcmil wiring.
Specifications
Brand
Siemens
Series
EP
Part Number
EP3175
Amperage
175A
Voltage
240VAC
Poles
3
Phase
3
AIC Rating
10kA @ 240VAC
Mounting Style
Plug-On
Terminal Type
Lugs
For Use With
Siemens EQ III Load Centers, Siemens PL Series Load Centers, Siemens ES Series Load Centers
Trip Technology
Thermal Magnetic
Trip Function Code
LI
Trip Function
Long-Time, Instantaneous
Trip Adjustability
Fixed Thermal, Fixed Magnetic
Wire Gauge
1 AWG - 300 kcmil (Cu/Al)
Max Wire
300 kcmil
Min Wire
1 AWG
Available Options
Shunt Trip, Auxiliary Switch, Padlock Attachment
Accessories
Load Side Lugs Included
Standards
CSA C22.2 No. 5, UL 489
Approval
CSA, UL
Temp Rating
40C
Construction Features
HACR Rated, Common Trip, Main Breaker, Reverse Feed
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