HGA36070 - 70 Amp Circuit Breaker

The HGA36070 PowerPacT H circuit breaker is a 70-amp, 3-pole breaker designed for electrical distribution systems that need dependable thermal-magnetic protection. It helps protect you against overloads and short circuits and carries an 18 kA interrupting rating at 600VAC, along with ratings of 35 kA at 480VAC and 65 kA at 240VAC under UL 489.

Key Features and Benefits

• 70A, 3-pole design – Intended for three-pole distribution applications requiring a 70-amp breaker.
• Thermal-magnetic trip protection – Provides overload and short-circuit protection without an electronic trip unit.
• I-Line construction – Uses an I-Line connection on the line side and mechanical lugs on the load side.
• Dual-break rotating contacts – Helps limit peak current during short-circuit conditions.
• Push-to-trip button – Allows qualified personnel to manually trip the breaker from the front cover.
• 80% continuous-current rating – Configured with an ABC phase connection.
• Wide conductor range – AL150HD terminals accept 14 AWG through 3/0 AWG aluminum or copper conductors.
  

Technical Specifications

• Catalog Number: HGA36070
  
• Product Family: PowerPacT H
  
• Product Type: Circuit Breaker
  
• Rated Current: 70 A
  
• Number of Poles: 3
  
• Protected Poles: 3t
  
• Trip Technology: Thermal-magnetic
  
• Control Type: Toggle
  
• Breaking Capacity Code: G
  
• Breaking Capacity at 240VAC: 65 kA, 50/60 Hz, UL 489
  
• Breaking Capacity at 480VAC: 35 kA, 50/60 Hz, UL 489
  
• Breaking Capacity at 600VAC: 18 kA, 50/60 Hz, UL 489
  
• Breaking Capacity at 250VDC: 20 kA, UL 489
  
• Breaking Capacity at 500VDC: 20 kA, UL 489
  
• Rated Operational Voltage: 690VAC, 50/60 Hz, IEC 60947-3
  
• Rated Insulation Voltage: 750 V
  
• Rated Impulse Withstand Voltage: 8 kV
  
• Network Frequency: 50/60 Hz
  
• Magnetic Tripping Current: 1450 A
  
• Magnetic Hold Current: 800 A
  
• Continuous Current Rating: 80%
  
• Suitability for Isolation: Yes, IEC 60947-2
  
• Utilization Category: Category A
  
• Phase Connection: ABC
  
• Mounting: I-Line bracket
  
• Line-Side Connection: I-Line
  
• Load-Side Connection: Mechanical lugs
  
• Height: 6.4 in. (163 mm)
  
• Width: 4.09 in. (104 mm)
  
• Depth: 3.4 in. (86 mm)
  
• Product Weight: 4.9 lb. (2.2 kg)
  

Material Compliance and Certifications

The HGA36070 carries UL, CSA, and NOM certifications and is CE marked. It also meets applicable UL, CSA, NEMA, NOM-003-SCFI-2000, and IEC 60947-2 standards. The front cover is rated IP40 under IEC 60529, and the breaker is classified for Pollution Degree 3 under IEC 60947-1.

Where It Works Best

The HGA36070 is well suited to commercial, industrial, institutional, and facility electrical distribution systems that use compatible I-Line equipment.
Its I-Line line-side connection can make replacement work more convenient in compatible equipment, while the mechanical load-side lugs accept both aluminum and copper conductors across a broad size range. The HACR rating also makes it suitable for qualifying heating, air-conditioning, and refrigeration applications.