Siemens 3VA5330-6EC31-0AA0 300 Amp 3-Pole Molded Case Circuit Breaker – Panel Mount – 240/480/600VAC & DC Rated

The Siemens 3VA5330-6EC31-0AA0 is a heavy-duty molded case circuit breaker (MCCB) from the SENTRON 3VA53 series, designed for demanding industrial and commercial power distribution systems. Built on the robust 3VA53 frame, this 300A, 3-pole breaker provides reliable overcurrent protection using a TM230 thermal-magnetic trip unit with fixed thermal and adjustable magnetic settings. It delivers high fault interruption capability, making it suitable for feeder and distribution circuits in high-energy environments.

This breaker is designed for Siemens 3VA panelboards and switchboards and installs into Siemens 3VA systems. It can also replace legacy JXD63B300 units when used with the appropriate retrofit kit, supporting modernization of existing electrical infrastructure while maintaining compatibility with Siemens distribution equipment.

Voltage and Rating

• Current Rating: 300 Amps
• Voltage Rating: 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 500VDC
• Phase: 3-Phase
• Frequency: 50/60 Hz
• AIC Rating:
  • 100kA @ 240VAC
  • 65kA @ 480Y/277VAC
  • 65kA @ 480VAC
  • 25kA @ 600Y/347VAC
  • 25kA @ 600VAC
  • 85kA @ 500VDC

Key Specifications

• Breaker Type: Molded Case Circuit Breaker (MCCB)
• Series: SENTRON 3VA5
• Family: 3VA
• Part Number: 3VA5330-6EC31-0AA0
• Frame Size: 3VA53 Frame
• Number of Poles: 3-Pole
• Mounting Style: Panel Mount
• Terminal Type: Lugs
• Trip Technology: Thermal Magnetic
• Trip Unit: TM230
• Trip Function Code: LI
• Trip Function: Long-Time and Instantaneous Protection
• Trip Adjustability: Fixed Thermal, Adjustable Magnetic
• Protection Type: Thermal Magnetic

Technical Specifications

• Breaking Capacity Class: High / Class H (high fault performance)
• Application: Industrial and Commercial Power Distribution
• Compatibility: Siemens 3VA Panelboards, Switchboards (P4/P5 systems with kit)
• Construction Features: HACR Rated, Current Limiting, Reverse Feed, Trip-Free Mechanism

Standards and Approvals

• Standards: IEC 60947-2, UL 489, HACR
• Approvals: UL, CSA, CE, EAC, RCM, IEC, VDE, ABS

Product Data

• Manufacturer: Siemens
• Series: SENTRON 3VA5
• Part Number: 3VA5330-6EC31-0AA0

Applications

• Industrial Power Distribution Systems
• Commercial Electrical Installations
• Panelboards and Switchboards
• Motor Control Centers
• Feeder Circuit Protection
• Branch Circuit Protection
• High Fault Current Applications
• Heavy Electrical Load Distribution
• Critical Infrastructure Systems

Returns are easy

You may return items within 30 days of delivery for a refund.

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