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Siemens 48GC38AA2 - Thermal Overload Relay 0.1-0.5A

Siemens
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The Siemens 48GC38AA2 is a Class 48 thermal overload relay designed to protect AC motors from overcurrent conditions by monitoring motor current and tripping the contactor when an overload is detected. This relay is rated for use with a maximum coil voltage of 600V AC and a current range of 0.1 to 0.5 amps, featuring a bimetallic thermal trip mechanism for accurate, ambient-compensated protection. It has a compact design with a weight of 5 lb and is constructed for panel mounting, utilizing a Class 48 frame size. The relay complies with NEMA standards and is suitable for industrial motor control applications requiring reliable overload protection in three-phase systems. Typical applications include conveyors, pumps, fans, and compressors in manufacturing and processing facilities.

Key Features & Specifications
  • Type: Thermal Overload Relay, Class 48, bimetallic operation
  • Voltage Rating: 600V AC
  • Current Rating: 0.1 - 0.5 A
  • Dimensions: Class 48 frame size
  • Standards: NEMA rated
  • Applications: Industrial motor protection for conveyors, pumps, fans, compressors
  • Relay Style: Thermal
  • Weight: 5 lb
  • Mounting: Panel mount
  • Phase: 3
  • Trip Type: Thermal bimetallic
  • Enclosure: Open style
  • Installation Type: Panel
  • Nema Starter Size: Class 48


Product Identification
  • Manufacturer: Siemens
  • Family: Class 48
  • Type: 48GC
  • Item Subcategory: Overload Relay