Siemens 3VA4150-4ED34-0AA0 50A 3P Molded Case Circuit Breaker – Panel Mount – 240/480V AC

The Siemens 3VA4150-4ED34-0AA0 is a 50A, 3-pole molded case circuit breaker (MCCB) from the SENTRON 3VA4 series, engineered for reliable three-phase power distribution in commercial and industrial applications. Featuring a fixed thermal-magnetic trip unit with LI (Long-Time and Instantaneous) protection, it provides dependable overcurrent protection while maintaining system reliability and safety.

Designed for compatibility with Siemens P1 through P5 panelboards and switchboards, this breaker serves as a direct functional replacement for the legacy ED43B050 breaker. Its high interrupting capacity and robust construction make it ideal for demanding electrical distribution systems.

Electrical Ratings

• Current Rating: 50 Amps
• Voltage Ratings:
  • 240 VAC
  • 480Y/277 VAC
  • 480 VAC
  • 600Y/347 VAC
  • 250 VDC
• Number of Poles: 3-Pole
• Phase: 3-Phase
• Interrupting Capacity:
  • 65 kA @ 240 VAC
  • 25 kA @ 480Y/277 VAC
  • 25 kA @ 480 VAC
  • 14 kA @ 600Y/347 VAC
  • 50 kA @ 250 VDC

Trip & Protection Features

• Trip Technology: Thermal-Magnetic
• Trip Function Code: LI
• Protection Functions:
  • Long-Time Protection
  • Instantaneous Protection
• Trip Adjustability:
  • Fixed Thermal
  • Fixed Magnetic
• HACR Rated: Yes
• HID Rated: Yes
• Reverse Feed Capable: Yes

Key Specifications

• Brand: Siemens
• Series: 3VA4
• Part Number: 3VA4150-4ED34-0AA0
• Mounting Style: Panel Mount
• Terminal Type: Lugs
• Accessories Included: Load Side Lugs
• Replacement For: ED43B050

Compatibility

• Siemens P1 Panelboards
• Siemens P2 Panelboards
• Siemens P3 Panelboards
• Siemens P4 Panelboards
• Siemens P5 Panelboards
• Siemens Switchboards

Wiring Details

• Wire Gauge Range: 8 AWG – 3/0 AWG (Cu/Al)
• Minimum Wire Size: 8 AWG
• Maximum Wire Size: 3/0 AWG

Available Accessories

• Shunt Trip
• Auxiliary Switch
• Undervoltage Release
• Alarm Switch
• Padlock Attachment
• Rotary Handle

Standards & Approvals

• UL 489
• IEC 60947-2
• CSA C22.2 No. 5
• CE Approved
• CSA Approved
• NOM Approved
• UL Listed
• Temperature Rating: -25°C to 70°C

Construction Features

• HACR Rated
• HID Rated
• Reverse Feed Capability
• Industrial-Duty Design

Applications

• Commercial power distribution
• Industrial electrical systems
• Three-phase feeder protection
• Panelboard and switchboard installations
• Retrofit replacement for Siemens ED43B050 breakers

  The Siemens 3VA4150-4ED34-0AA0 is a 50A, 3-pole molded case circuit breaker (MCCB) from the SENTRON 3VA4 series, engineered for reliable three-phase power distribution in commercial and industrial applications. Featuring a fixed thermal-magnetic trip unit with LI (Long-Time and Instantaneous) protection, it provides dependable overcurrent protection while maintaining system reliability and safety.

Returns are easy

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

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