HMA3150T - 150Amp Trip Unit

HMA3150T - 150Amp Trip Unit

When you’re maintaining an existing electrical system, getting the right replacement component matters. The HMA3150T is a 150-amp, 3-pole thermal-magnetic trip unit for compatible MA and HMA circuit breaker frames. It features a 750–1500 amp magnetic Hi-Low trip setting range and measures approximately 4.00" W x 7.50"L x 3.50"D. Those details make it easier to compare the HMA3150T with the unit already in your equipment and determine whether you have the right form, fit, and function for the application. This trip unit is particularly useful when servicing legacy electrical distribution equipment where maintaining the original breaker configuration is the goal.

Key Features and Benefits

• 150 Amp rating for applications requiring this specific current rating
• 3-pole configuration for compatible three-pole breaker assemblies
• Designed specifically for MA and HMA frames
• Thermal magnetic trip operation for the intended breaker application
• 750–1500 amp magnetic Hi-Low trip setting range
• Practical choice for maintaining compatible existing and legacy electrical equipment
• Supports form, fit, and functional replacement when specifications match the original component
• Clearly defined dimensions make physical comparison with an existing unit easier
  

Technical Specifications

• Part Number: HMA3150T
  
• Type: HMA
  
• Trip Type: Thermal Magnetic
  
• Frame Application: MA & HMA
  
• Amperage: 150 Amps
  
• Poles: 3
  
• Magnetic Hi-Low Trip Setting: 750–1500 Amps
  
• Width: 4.00 in.
  
• Height / Length: 7.50 in.
  
• Depth: 3.50 in.
  
• Dimensions: 4.00"W x 7.50"L x 3.50"D
  
• Approx. Shipping Weight: 6.00 lbs.
  
• A.I.C. Rating & Voltage: Not specified in available product data
  

Material Compliance and Certifications

Specific material compliance, certification, and agency-listing information was not included in the available specifications for the HMA3150T. For that reason, certifications or compliance designations should not be assumed.

If your application calls for a particular certification, listing, or material requirement, check the markings on the actual component and the documentation associated with the breaker and electrical equipment.

Where It Works Best

The HMA3150T is best suited to maintenance and replacement applications involving compatible MA and HMA circuit breaker frames that require a 150-amp, 3-pole thermal-magnetic trip unit. It can be especially useful when working with legacy electrical distribution systems where the objective is to preserve the equipment's intended configuration rather than alter it.