NX361200 - 1200 Amp Circuit Breaker

NX361200 - 1200 Amp Circuit Breaker

When you're replacing a breaker in an existing electrical system, getting the details right matters; the NX361200 Type NX molded case circuit breaker is a plug-in unit designed for compatible electrical equipment that requires this specific configuration. It combines current-limiting and thermal-magnetic protection with Micrologic® functionality and adjustable trip settings. The breaker provides an adjustable long-time ampere rating and delay, plus adjustable instantaneous pickup, allowing you to match the settings to system requirements.

The NX361200 carries interrupting ratings of 65k AIC at 600VAC, 100k AIC at 480VAC, and 125k AIC at 240VAC. It measures 12.12 inches high, 14.62 inches wide, and 6.43 inches deep. These aren't just numbers on a spec sheet. In a legacy installation, dimensions, connection style, interrupting rating, voltage, and trip characteristics can all affect whether a breaker is the right fit. That's why you should consider the NX361200 by its complete set of specifications rather than by part number alone. For compatible equipment that requires this Type NX configuration, it offers the form, fit, and function needed to keep an existing system in service. It's a straightforward, purpose-built breaker that's built to last.

Key Features and Benefits

• Type NX molded case design for compatible electrical distribution equipment.
• Plug-in configuration for systems designed around this connection style.
• Combines current-limiting and thermal-magnetic protection.
• Includes Micrologic® functionality.
• Adjustable long-time ampere rating and delay provide configurable trip characteristics.
• Adjustable instantaneous pickup lets you match the pickup setting to system requirements.
• Rated 65k AIC at 600VAC, 100k AIC at 480VAC, and 125k AIC at 240VAC.
• Well suited to form, fit, and function replacement in compatible legacy equipment.
• Built to last for its intended electrical distribution application.

Technical Specifications

• Part Number: NX361200
  
• Type: NX
  
• Product Type: Molded Case Circuit Breaker
  
• Configuration: Plug-In
  
• Protection: Current-Limiting, Thermal-Magnetic
  
• Functionality: Micrologic®
  
• Long-Time Ampere Rating: Adjustable
  
• Long-Time Delay: Adjustable
  
• Instantaneous Pickup: Adjustable
  
• AIC Rating at 600VAC: 65k
  
• AIC Rating at 480VAC: 100k
  
• AIC Rating at 240VAC: 125k
  
• Height: 12.12 in.
  
• Width: 14.62 in.
  
• Depth: 6.43 in.
  

Material Compliance and Certifications

• The available specifications for the NX361200 did not include material compliance information or specific agency certifications. Verify these details on the product nameplate or in applicable manufacturer documentation when a specific certification or compliance requirement applies to the installation.
• For replacement applications, check the part number, breaker type, physical dimensions, plug-in configuration, voltage, AIC rating, and trip characteristics. A qualified electrical professional should confirm final compatibility.

Where It Works Best

• The NX361200 makes the most sense in existing electrical systems that were designed around this particular Type NX plug-in breaker configuration. It's especially relevant for maintenance and replacement projects where preserving the original form, fit, and function of legacy equipment is important.
• A good replacement starts with a good match. Confirm the NX361200 part number, dimensions, connection style, voltage, interrupting ratings, and adjustable trip functions against the existing equipment's requirements. When those specifications align, the NX361200 provides a practical way to maintain the intended breaker configuration without changing the system's basic design.