S173A - Square D Micrologic 5.0H Trip Unit for R-Frame/P-Frame Circuit Breakers

S173A

S173A is a Micrologic 5.0H trip unit designed for field installation in Square D R-Frame and P-Frame circuit breakers.

This trip unit offers long-time, short-time, and instantaneous protection with LSI (Long-time, Short-time, Instantaneous) trip characteristics. It is compatible with a wide range of unit-mount circuit breakers up to 800A and supports flexible, easy installation with various terminal options. The S173A is UL 489 listed and certified by CSA, NEMA, IEC, and other global standards, ensuring reliable performance and global acceptance.

• Trip Unit Type: Micrologic 5.0H LSI
• Compatible Frames: R-Frame and P-Frame
• Voltage Rating: 600V
• Interrupt Rating: UL 489 Listed (specific rating depends on breaker)
• Mounting: Field-installable
• Amperage: Up to 800A (depending on breaker)
• Certifications: UL, CSA, NEMA, IEC, CE
• Features: Long-time, Short-time, Instantaneous protection
• Environmental: Packaging made with recycled cardboard

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Specifications

• Part Number: S173A
• Manufacturer : Schneider Electric
• Brand : Square D
• Category : Circuit Breaker
• Item Subcategory : Trip Units & Programmers
• Family : Micrologic
• Type : S173
• Voltage : 600
• Functions : LSI - Long-Time, Short-Time and Instantaneous
• Protection : Solid State
• Compatible Frames : NS,NT,NW,PG,PJ,PK,PL,RG,RJ,RK,RL

Product Data

• UPC : 078590189987
• GTIN : 00785901899877
• Country of Origin : United States
• Dimensions : Depth 5.38 in (136.65 mm) x Width 5.64 in (143.26 mm)
• Weight : 3.001