BJA36070 - 70Amp Circuit Breaker

BJA36070 - 70Amp Circuit Breaker

When your reliable circuit protection is critical, the Schneider Electric BJA36070 PowerPacT™ B Circuit Breaker delivers the performance and durability that electrical professionals depend on. Designed for commercial and industrial power distribution systems, this 70-amp, 3-pole circuit breaker helps protect valuable equipment from overloads and short circuits while supporting safe, uninterrupted operation.

Part of the trusted PowerPacT B family, the BJA36070 combines a compact footprint with powerful protection capabilities, making it an excellent choice for your panelboards, switchboards, HVAC equipment, motor circuits, and other demanding electrical applications. Its thermal-magnetic trip unit responds quickly to fault conditions, helping reduce the risk of equipment damage and costly downtime. Whether you're upgrading an existing system or installing new electrical infrastructure, this breaker offers the dependable protection needed to keep operations running smoothly.

Built for long-term performance, the BJA36070 provides interrupting ratings up to 100kA at select voltage levels and is engineered to meet stringent industry standards.

Key Features and Benefits

• 70 amp current rating: for commercial and industrial electrical distribution systems.
• 3-pole design: for three-phase power applications.
• Thermal-magnetic trip unit: provides dependable overload and short-circuit protection.
• I-Line mounting configuration: enables quick installation and replacement.
• Dual-break rotating contacts: help reduce peak fault current during short-circuit events.
• Integral push-to-trip button: simplifies inspection and operational testing.
• Interrupting capacity up to 100 kA: at lower voltage applications.
• Compact PowerPacT B-frame design: helps maximize available panel space.
• HACR rated: for heating, air conditioning, and refrigeration equipment.
• Compatible with auxiliary switches, alarm switches, and voltage release accessories.
• Suitable for feeder, branch, motor, and equipment protection applications.
• Designed for reliable performance in demanding operating environments.

Technical Specifications

• Catalog Number: BJA36070
  
• Manufacturer: Schneider Electric
  
• Product Line: PowerPacT™ B
  
• Product Type: Molded Case Circuit Breaker
  
• Frame Type: B-Frame
  
• Ampere Rating: 70 Amps
  
• Number of Poles: 3 Pole
  
• Trip Unit Technology: Thermal-Magnetic
  
• Mounting Style: I-Line
  
• Control Type: Toggle
  
• Continuous Current Rating: 80%
  
• Rated Operational Voltage: Up to 690 VAC
  
• Frequency: 50/60 Hz
  
• Phase Connection: ABC
  
• Breaking Capacity:
  • 100 kA at 208Y/120 VAC
  • 100 kA at 240 VAC
  • 65 kA at 480/277 VAC
  • 65 kA at 480 VAC
  • 25 kA at 600Y/347 VAC
  • 50 kA at 250 VDC
• Rated Service Breaking Capacity (IEC):
  • 100 kA at 220–240 VAC
  • 65 kA at 380–415 VAC
  • 65 kA at 440 VAC
  • 25 kA at 500–525 VAC
  • 10 kA at 690 VAC
• Rated Insulation Voltage (Ui): 800 V
  
• Rated Impulse Withstand Voltage (Uimp): 8 kV
  
• Electrical Connection:
  • Line Side: I-Line Connection
  • Load Side: Mechanical Lugs
• Wire Range: AWG 14 to AWG 2/0 Copper or Aluminum
  
• Mechanical Durability: 20,000 Operations
  
• Electrical Durability: 10,000 Operations at 440V
  
• Suitability for Isolation: Yes
  
• Dimensions:
  • Height: 5.4 Inches
  • Width: 3.2 Inches
  • Depth: 3.5 Inches
• Product Weight: 2.899 lbs.
  

Material Compliance and Certifications

• UL 489
• CSA C22.2 No. 5
• IEC 60947-2
• EN/IEC 60947-5-1
• NEMA AB1
• GB 14048.2
• NMX J-266
• CE Marked
• UL Listed
• CSA Certified
• IEC Certified
• CCC Certified
• EAC Certified
• NOM Certified

Where It Works Best

• The Schneider Electric BJA36070 is well suited for commercial buildings, manufacturing facilities, healthcare campuses, educational institutions, municipal facilities, and industrial operations that require dependable three-phase circuit protection. Common applications include switchboards, panelboards, feeder circuits, branch circuits, HVAC systems, refrigeration equipment, motor loads, machinery, and general electrical distribution systems.