Specifications
Manufacturer Part Number	ST203M-K50
Manufacturer	ABB
Product Series	ST200M
Family Series	ABB Circuit Breakers, ST200M Series
Poles	3
Current Rating	50 A
Max Voltage	277/480 VAC, 125 VDC
Trip Curve	K
Trip Unit	Fixed Thermal / Fixed Magnetic
Mounting	DIN Rail
Neutral Pole	No
Terminal Type	Screw
Auxiliary Switch	Optional
Shunt Trip	Optional
Undervoltage Release	Optional
Alarm Switch	Optional
UL Standard	1077
Approvals	CCC, CSA, EAC, UL, VDE
H x W x D	2.72 " x 2.07 " x 3.46 "
Net Weight	0.805 lbs
Gross Weight	1.3 lbs

Alternatives

Compare available alternatives using the specifications that matter for this product.

Alternatives comparison
Image	Part	Description	Mounting	Series	Poles	Price	Action
	FAZ-K50/3	Eaton FAZ supplementary protector,UL 1077 Industrial miniature circuit breaker - supplementary protector,50 A,15 kAIC,Three-pole,8-12X /n,Standard terminals,K curve	DIN Rail	FAZ	3	Price unavailable