JJA36250 - 250 Amp Circuit Breaker

JJA36250 - 250 Amp Circuit Breaker

With the JJA36250, the connection arrangement provides a practical starting point for the compatibility check. This 250A, three-pole PowerPacT J-Frame circuit breaker connects to I-Line equipment on the line side and uses an AL250JD mechanical lug on the load side. The housing measures 7.5 inches high, 4.09 inches wide, and 3.4 inches deep, giving you another set of numbers to compare with the breaker already in place. The JJA36250 is built to last and is well suited to form, fit, and functional replacement in compatible existing and legacy distribution equipment where these ratings, connections, and dimensions are required.

Key Features and Benefits

• 250A, 3-pole rating provides clear electrical criteria for checking compatibility with existing distribution equipment.
• I-Line line-side connection supports installations requiring this mounting and connection arrangement.
• AL250JD mechanical load-side lug accommodates 3/0 AWG through 350 kcmil aluminum or copper conductors.
• Thermal-magnetic trip technology provides overload and short-circuit protection.
• 80% continuous current rating with an ABC phase connection.
• Integral push-to-trip button provides a manual means of tripping the breaker from the cover.
• HACR rated as specified by the manufacturer.
  

Technical Specifications

• Catalog Number: JJA36250
  
• Product Family: PowerPacT J
  
• Product Type: Circuit Breaker
  
• Application: Distribution
  
• Frame: J-Frame
  
• Rated Current: 250A
  
• Number of Poles: 3
  
• Control Type: Toggle
  
• Trip Technology: Thermal-magnetic
  
• Protection: Overload and short circuit
  
• Continuous Current Rating: 80%
  
• Phase Connection: ABC
  
• Breaking Capacity at 240VAC: 100 kA, UL 489
  
• Breaking Capacity at 480VAC: 65 kA, UL 489
  
• Breaking Capacity at 600VAC: 25 kA, UL 489
  
• Breaking Capacity at 250VDC: 20 kA, UL 489
  
• Rated Operational Voltage: 600VAC, 50/60 Hz
  
• Line-Side Connection: I-Line
  
• Load-Side Connection: Mechanical lug
  
• Height: 7.5 in. (191 mm)
  
• Width: 4.09 in. (104 mm)
  
• Depth: 3.4 in. (86 mm)
  
• Net Weight: 5.3 lb. (2.4 kg)
  
• HACR Rated: Yes
  

Material Compliance and Certifications

The JJA36250 carries UL, CSA, and NOM product certifications, as well as a CE quality label. Manufacturer-specified standards include UL, CSA, NEMA, NOM-003-SCFI-2000, and IEC 60947-2. The front cover is rated IP40, and the specified pollution degree is 3 under IEC 60947-1.

Where It Works Best

The JJA36250 is suited to compatible existing and legacy distribution equipment requiring a 250A, three-pole J-Frame circuit breaker with an I-Line line-side connection and mechanical load-side lug. The AL250JD terminal and its 3/0 AWG–350 kcmil conductor range are especially important details to check when matching the breaker to wiring already in place.