Square D KC34250 – 250A 480VAC 3‑Pole I‑Line Molded Case Circuit Breaker, KC Frame, Thermal Magnetic, 100kA @240V / 65kA @480V

Square D KC34250 – 250A 480VAC 3‑Pole I‑Line Molded Case Circuit Breaker, KC Frame, Thermal Magnetic, 100kA @240V / 65kA @480VDescription KC34250 KC34250 is a Square D KC frame molded case circuit breaker rated for 250 amps and 480 VAC. This 3pole breaker features an I Line style plug on connection for quick and secure installation in Square D I Line panelboards and switchboards. It uses a thermal magnetic trip unit with long time and instantaneous (LI) protection to provide reliable defense against overloads and short circuits. Designed for 3phase systems, the KC34250 is

Description

KC34250

KC34250 is a Square D KC-frame molded case circuit breaker rated for 250 amps and 480 VAC. This 3‑pole breaker features an I-Line style plug-on connection for quick and secure installation in Square D I-Line panelboards and switchboards. It uses a thermal magnetic trip unit with long-time and instantaneous (LI) protection to provide reliable defense against overloads and short circuits. Designed for 3‑phase systems, the KC34250 is rated for continuous operation at 40 °C ambient temperature and meets UL and CSA certifications.

Interrupting Ratings

• 100 kA @ 240 VAC – extra-high interrupting capacity at lower voltages

• 65 kA @ 480 VAC – standard high interrupting capacity for 480 V systems

• Not rated @ 600 VAC – KC-series breakers do not have a UL listed interrupting rating at 600 V

Key Specifications

• Manufacturer: Square D

• Part Number: KC34250

• Amperage: 250 A

• Voltage Rating: 480 VAC

• Poles: 3

• Frame Type: KC

• Mounting Type: I-Line Style Plug-On

• Trip Unit: Thermal Magnetic

• Trip Functions: LI – Long-Time and Instantaneous

• Phase: 3

• Ambient Temperature Rating: 40 °C

• Certifications: UL, CSA

Specifications

• Part Number: KC34250

• Manufacturer: Square D

• Category: Circuit Breaker

• Item Subcategory: Molded Case

• Family: I-Line

• Type: KC

• Voltage: 480 VAC

• Amperage: 250 A

• Phase: 3

• Poles: 3

• AIC Rating: 100 kA @ 240 V / 65 kA @ 480 V

• Connection: I-Line Style Plug-On

• Functions: LI – Long-Time and Instantaneous

• Frame Size: K Frame

• Temperature Rating: -13 °F to 158 °F (-25 °C to 70 °C)

• Protection: Thermal Magnetic

Product Data

• UPC: 785901255628

• GTIN: 00785901255628

• Weight: ~13 lb