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Cutler Hammer Series G - Undervoltage Release 480V AC (24V AC/DC Min)

Cutler Hammer
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Cutler Hammer Series G UVR is an undervoltage release protection device designed to automatically trip a circuit breaker when voltage drops below a preset threshold, safeguarding connected equipment from damage. It operates on a control voltage range with a maximum of 480V AC and a minimum of 24V AC/DC, supporting current ratings up to 1200A depending on the breaker frame. The unit weighs 5.19 lb and is constructed with a durable metal enclosure, featuring a compact design for panel mounting within Series G breaker frames. It complies with UL 489 and CSA standards, ensuring reliable performance in industrial environments. Typical applications include motor control centers, distribution panels, and machinery requiring voltage-sensitive protection.

Key Features & Specifications
  • Type: Undervoltage release, electromechanical, for Series G circuit breakers
  • Voltage Rating: 480V AC maximum, 24V AC/DC minimum
  • Current Rating: Up to 1200A (dependent on breaker frame)
  • Dimensions: Standard Series G accessory size
  • Standards: UL 489, CSA certified
  • Applications: Motor control centers, distribution panels, industrial machinery
  • Switch Type: N/A (release device)
  • Configuration: Single-pole or multi-pole compatible
  • Coil Voltage Maximum: 480V AC
  • Temp Rating: -20°C to 60°C
  • Shipping Dimensions: 6 x 4 x 3 inches
  • Phase: Single or three-phase
  • Voltage: 24-480V AC/DC
  • Amperage: Up to 1200A
  • AIC rating: Up to 65kA at 480V
  • Connection: Screw terminals
  • Poles: 1-4
  • Protection: Undervoltage
  • Functions: Trip on voltage drop
  • Frame Size: Series G
  • Trip Type: N/A (external device)
  • Panel Type: NEMA 1/3R/12
  • Breaker Type: Series G
  • Control Voltage Minimum: 24V AC/DC
  • Control Voltage Maximum: 480V AC
  • MCM Size: N/A
  • Metal Type: Steel
  • Panel Style: Surface mount
  • Bus Type: N/A
  • Fuse Class: N/A
  • Insulation Temperature: 105°C
  • Inductance: N/A
  • Impedance: N/A
  • Barrels: N/A
  • Class Rating: N/A
  • Diameter: N/A
  • Velocity: N/A
  • Clip Center: N/A
  • Clas: N/A
  • Mounting: Panel
  • Hz: 50/60
  • Coil Material: Copper
  • Horse Power: N/A
  • Aux Contacts: 1 N.O., 1 N.C.
  • CPT: N/A
  • Full Load Amps: N/A
  • Dist Voltage: N/A
  • Bucket Size: N/A
  • Bucket Style: N/A
  • Bucket Type: N/A
  • Full Load Amp Maximum: N/A
  • Full Load Amp Minimum: N/A
  • Enclosure: Open
  • Relay Style: N/A
  • Coil Voltage Minimum: 24V AC/DC
  • Wire: 14-10 AWG
  • Amperage Maximum: 1200A
  • Amperage Minimum: 0A
  • Nema Rating: 1
  • Switch Style: N/A
  • Wire Size: 14-10 AWG
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Panel
  • Terminal Connection: Screw
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 1 or 3
  • Standards: UL 489, CSA C22.2
  • Compatible Frames: Series G
  • Installation Type: Panel
  • Item QTY: 1
  • Nema Starter Size: N/A
  • Breaker Frame: Series G
  • Current Rating: 1200A max
  • Reverse Standoff Voltage: N/A
  • Watts: 5W
  • Peak Pulse Current: N/A
  • Breakdown Voltage (MIN VBR@IT ) (V): N/A
  • Breakdown Voltage (VBR@IT) (V): N/A
  • Polarity: N/A
  • Operating Temperature Maximum Celsius: 60
  • Max Clamp Voltage: N/A
  • On-State Current: N/A


Product Identification
  • UPC: 786679026991