Siemens 3VA4120-5ED34-0AA0 20 Amp 3-Pole Molded Case Circuit Breaker – 3VA4 Frame – 600V AC

The Siemens 3VA4120-5ED34-0AA0 is a 3-pole molded case circuit breaker (MCCB) from the Siemens 3VA4 series, designed for reliable commercial and industrial electrical distribution. It provides thermal-magnetic protection (TM210 trip unit) with fixed overload and short-circuit settings, ensuring stable circuit protection in panelboards and switchgear applications.

Voltage and Electrical Ratings

• Current Rating: 20 Amps
• Voltage Rating: 600 Volts AC
• Frequency: 50/60 Hz
• Frame Size: 125 A Frame
• Interrupting Capacity:
  • 65 kA @ 480V AC (AIC Rating)
  • Class M: 35 kA @ 480V (per specification class)

Key Specifications

• Breaker Type: Molded Case Circuit Breaker (MCCB)
• Number of Poles: 3-Pole
• Series: Siemens 3VA4
• Trip Unit: TM210 (Thermal-Magnetic)
• Functions: FTFM
• Protection Type: Fixed overload + fixed instantaneous protection
• Application: Line protection / power distribution
• Mounting Type: Bolt-on / panelboard installation

Protection Settings

• Overload Protection (Ir): 20 A permanently set
• Short-Circuit Protection (Ii): 15 × In
• Trip Mechanism: Thermal-magnetic (non-adjustable settings in TM210)
• Operating Mechanism: Trip-free switching system

Terminal and Wiring Details

• Terminal Type: Line and load terminals (bolt-on connection)
• Connection Method: Fixed terminal connection
• Wire Compatibility: Industrial copper/aluminum conductors (based on panel application)
• Installation Type: Fixed mounting in Siemens panel systems

Physical Dimensions

• Height: 3 in
• Width: 3 in
• Depth: 5.1 in
• Weight: 1.63 lbs

Standards and Certifications

• CSA Approved
• Meets IEC / UL MCCB standards (industrial grade protection)
• Designed for switchgear and distribution panel applications

Product Data

• Manufacturer: Siemens
• Brand Family: Siemens Breakers
• Series: 3VA4
• Part Number: 3VA4120-5ED34-0AA0
• Frame Type: 3VA UL Frame 125

Returns are easy

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

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