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Westinghouse 1221C21G03 - Shunt Trip 120V (SPB Series)

Westinghouse
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Westinghouse 1221C21G03 is a shunt trip accessory designed for remote circuit breaker tripping in emergency disconnect and interlock applications. This SPB Series unit operates with a control voltage range of 120V minimum to 120V maximum, providing reliable tripping capability for compatible breaker frames. The component weighs 1 lb and is constructed as a compact, modular accessory that integrates directly into the breaker mechanism without requiring additional panel space. It complies with applicable UL and NEMA standards for industrial control equipment. Typical applications include motor control centers, distribution panels, and automated industrial systems requiring remote shutdown functionality.

Key Features & Specifications
  • Type: Shunt Trip Accessory
  • Voltage Rating: 120V AC/DC
  • Current Rating: Not specified
  • Dimensions: Not specified
  • Standards: UL, NEMA
  • Applications: Industrial motor control centers, distribution panels, automated shutdown systems
  • Switch Type: Not applicable
  • Configuration: Modular accessory
  • Coil Voltage Maximum: 120V
  • Temp Rating: Not specified
  • Shipping Dimensions: Not specified
  • Phase: Not applicable
  • Voltage: 120V
  • Amperage: Not specified
  • AIC rating: Not specified
  • Connection: Terminal block
  • Poles: Not applicable
  • Protection: Remote tripping
  • Functions: Emergency disconnect, interlock
  • Frame Size: SPB50, SPB65, SPB100
  • Trip Type: Shunt
  • Panel Type: Not specified
  • Breaker Type: SPB Series
  • Control Voltage Minimum: 120V
  • Control Voltage Maximum: 120V
  • MCM Size: Not specified
  • Metal Type: Not specified
  • Panel Style: Not specified
  • Bus Type: Not specified
  • Fuse Class: Not specified
  • Insulation Temperature: Not specified
  • Inductance: Not specified
  • Impedance: Not specified
  • Barrels: Not specified
  • Class Rating: Not specified
  • Diameter: Not specified
  • Velocity: Not specified
  • Clip Center: Not specified
  • Clas: Not specified
  • Mounting: Direct to breaker
  • Hz: Not specified
  • Coil Material: Not specified
  • Horse Power: Not specified
  • Aux Contacts: Not specified
  • CPT: Not specified
  • Full Load Amps: Not specified
  • Dist Voltage: Not specified
  • Bucket Size: Not specified
  • Bucket Style: Not specified
  • Bucket Type: Not specified
  • Full Load Amp Maximum: Not specified
  • Full Load Amp Minimum: Not specified
  • Enclosure: Not specified
  • Relay Style: Not specified
  • Coil Voltage Minimum: 120V
  • Wire: Not specified
  • Amperage Maximum: Not specified
  • Amperage Minimum: Not specified
  • Nema Rating: Not specified
  • Switch Style: Not specified
  • Wire Size: Not specified
  • Certification: UL, NEMA
  • Circuit Breaker Mounting Style: Not specified
  • Terminal Connection: Not specified
  • Frequency Rating: Not specified
  • Phase Connection: Not specified
  • Standards: UL, NEMA
  • Compatible Frames: SPB50, SPB65, SPB100
  • Installation Type: Direct mount
  • Item QTY: 1
  • Nema Starter Size: Not specified
  • Breaker Frame: SPB
  • Current Rating: Not specified
  • Reverse Standoff Voltage: Not specified
  • Watts: Not specified
  • Peak Pulse Current: Not specified
  • Breakdown Voltage (MIN VBR@IT ) (V): Not specified
  • Breakdown Voltage (VBR@IT) (V): Not specified
  • Polarity: Not specified
  • Operating Temperature Maximum Celsius: Not specified
  • Max Clamp Voltage: Not specified
  • On-State Current: Not specified


Product Identification
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