S203-C50 - ABB 50A 480V 3 Pole Bolt-On Miniature Circuit Breaker, 6kAIC, System Pro M Compact, C Trip, UL 489

S203-C50

S203-C50 is a 50A, 3-pole, bolt-on miniature circuit breaker from ABB, designed for reliable branch circuit protection in commercial and industrial applications.

This thermal-magnetic, current-limiting circuit breaker features a C trip curve for general purpose use, offers a 6 kA interrupting capacity at 480V AC, and is part of the System Pro M Compact S200 series. It is suitable for reverse feed applications and complies with UL 489 standards for safety and performance.

Key Specifications
• Part Number: S203-C50
• Manufacturer: ABB
• Amperage: 50A
• Voltage: 480V AC (277V AC line-to-neutral)
• Poles: 3
• Mounting Type: Bolt-on (DIN rail compatible)
• Interrupt Rating: 6 kAIC at 480V AC
• Series/Frame: System Pro M Compact S203
• Trip Unit: Thermal-magnetic, C curve
• Certifications: UL 489, CSA 22.2 No. 5, IEC 60947-2
• Current Limiting: Yes
• Suitable for Reverse Feed: Yes

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Specifications

• Part Number: S203-C50
• Manufacturer : ABB
• Brand : ABB
• Category : Circuit Breaker
• Item Subcategory : Molded Case
• Family : S 200 Series
• Type : S203-C
• Voltage : 480
• Amperage : 50
• Phase : 3
• Poles : 3
• AIC rating : 6kA@480V
• Connection : Feed-Thru
• Functions : Long Time and Instantaneous Trip
• Temp Rating : -13–158 °F (-25–70 °C)
• Protection : Thermal Magnetic

Product Data

• UPC : 01677955106
• GTIN : 04016779551069
• Dimensions : Depth / Length 69 mm X Height 88 mm X Width 52.5 mm
• Weight : 2.87
• Certification : EN IEC UL
• Wire Size : AWG 18 to AWG 8, AWG 18 to AWG 4