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Cutler Hammer SPCL3B20 - Supplementary Circuit Breaker 20A 3-Pole

Cutler Hammer
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Cutler Hammer SPCL3B20 is a supplementary circuit breaker designed for additional circuit protection in industrial and commercial applications beyond the main distribution system. This 3-pole breaker is rated for 20 Amps at 480V, with interrupt ratings of 5kA at 480V and 10kA at 240V for robust short circuit and overload protection. The unit weighs 5.19 lb and is constructed as part of the SPCL series, offering a compact design for panelboard integration. It is UL 1077 recognized as a supplementary protector, ensuring compliance with industry safety standards. Typical applications include protecting sensitive equipment and branch circuits in manufacturing facilities, commercial buildings, and control panels.

Key Features & Specifications
  • Manufacturer: Cutler Hammer
  • Part Number: SPCL3B20
  • Amperage: 20 Amp
  • Voltage: 480V
  • Poles: 3
  • Interrupt Rating: 5kA@480V, 10kA@240V
  • Series/Frame: SPCL
  • Certifications: UL 1077 (Supplementary Protector)
  • Weight: 5.19 lb