MH36300 - Square D 300 Amp 600V 3 Pole Molded Case Circuit Breaker, MH Frame, I-Line Plug-In, 65kA Interrupt, Electronic Trip, UL/CSA/NOM/IEC Certified

MH36300

MH36300 is a Square D molded case circuit breaker designed for robust industrial and commercial power distribution applications.

This 3-pole, 300 amp breaker features a 600V AC rating, MH frame, and I-Line plug-in mounting for easy installation and upgrades. It offers a high interrupting capacity of 65kA at 480V, electronic trip unit (ET 1.0), and meets global safety standards including UL, CSA, NOM, and IEC 60947-2. The compact, consistent form factor ensures compatibility with other PowerPacT M and P units, making it ideal for main or sub-distribution panels, motor control centers, and systems requiring selective coordination.

Key Specifications
• Amperage: 300A
• Voltage: 600V AC
• Poles: 3
• Mounting Type: I-Line plug-in, unit mount / busbar
• Interrupt Rating: 25kA @ 600V AC, 65kA @ 480V AC, 65kA @ 240V AC
• Series/Frame: MH
• Trip Unit: Electronic, ET 1.0
• Continuous Rating: 80%
• Certifications: UL, CSA, NOM, IEC 60947-2, CE
• Insulation: IP40, pollution degree 3
• Dimensions: 12.86" H x 8.27" W x 8.05" D
• Weight: 29 lb (approx. 13.15 kg)

At Essential Parts, we offer fast shipping, lowest price, and expert support to help you get the right product every time.

Specifications

• Part Number: MH36300
• Manufacturer : Square D
• Brand : Square D
• Category : Circuit Breaker
• Item Subcategory : Molded Case
• Family : I-Line
• Type : MH
• Voltage : 600
• Amperage : 300
• Phase : 3
• Poles : 3
• AIC rating : 65kA@480V
• Connection : I-Line Style Plug-In
• Functions : Long Time and Instantaneous Trip
• Frame Size : M Frame
• Protection : Thermal Magnetic

Product Data

• UPC : 785901339502
• Weight : 40