FA34070 - 70 Amp Circuit Breaker

FA34070 - 70 Amp Circuit Breaker

Engineered for demanding industrial and commercial electrical systems, the FA34070 molded-case circuit breaker combines dependable performance with flexibility for multiple applications. Rated for up to 480 VAC and 70 amps in a three-pole configuration, this breaker is purpose-built to deliver clear, efficient protection across three-phase systems. The thermal-magnetic trip mechanism offers rapid response to overloads and short-circuits—protecting equipment, infrastructure, and personnel with confidence. Whether you’re outfitting a factory, commercial HVAC panel, or high-duty distribution board, this is a high-value choice for safeguarding your circuit architecture.

Key Features and Benefits

• High Interrupting Capacity: With an 18 kA breaking capacity at 480 VAC and 25 kA at 240 VAC, the FA34070 handles severe fault conditions with reserve margin.
• Thermal-Magnetic Trip Unit: Combines time-delayed thermal protection for overloads with instantaneous magnetic tripping for short circuits. This dual-mode system gives accurate protection and repeatable performance.
• HACR-Rated for HVACR Service: The breaker is rated for Heating, Air Conditioning & Refrigeration (HACR) applications, giving technicians assurance it’s suitable in those service panels.
• Plug-In I-Line Mounting: Designed for ease of installation in I-Line panels, reducing labour time and simplifying retrofit or upgrade work.
• Broad Cable Compatibility: Supports copper and aluminium conductors (e.g., AWG 14–4 for copper; AWG 12–4 for aluminium).

Technical Specifications

• Rated Current: 70 A
• Number of Poles: 3 (three-pole)
• Interrupting Capacity (Breaking):
  • 18 kA at 480 VAC
  • 25 kA at 240 VAC
  • 10 kA at 250 V DC
• Trip Unit Technology: Thermal-Magnetic
• Mounting Mode: I-Line
• Electrical Connection: I-Line plug-in for line side; lug connections for load side
• Magnetic Hold Current: 800 A
• Magnetic Tripping Current: 1,450 A
• Physical Dimensions (approx.):
  • Height: 6.4 in (162.6 mm)
  • Width: 4.5 in (114.3 mm)
  • Depth: 4.13 in (104.9 mm)

Material Compliance and Certifications

• UL Listed and CSA Certified: Meeting North American safety and performance standards for industrial circuit protection.
• Green Premium Product Label: Complies with RoHS/REACH guidelines and is free from SVHC (Substances of Very High Concern) above thresholds, reflecting the manufacturer’s sustainability commitments (e.g., circular-economy design, recyclability).

Where It Works Best

• This breaker is a wise choice in three-phase electrical distribution systems where you demand durability, high fault-current capability, and streamlined installation. Ideal use-cases include:
• Commercial buildings with HVAC and refrigeration systems, where HACR rating matters.
• Industrial manufacturing environments, either in main or sub-distribution panels, where fault currents can be high and system uptime is critical.
• Retrofitting older panels that use I-Line plug-in style mounting and require a modern breaker with proven performance.
• Any facility needing a 70 amp, 3-pole solution rated for 480 VAC, where you want confidence in protection without overspending.