Swift Kompany 3221-40 A-Series Red Toggle Circuit Breaker 40A Single Pole

The Swift Kompany 3221-40 is a 40 amp single-pole panel mount toggle circuit breaker, also called a toggle panel breaker or magnetic-hydraulic circuit breaker. It has a red toggle actuator. It combines on/off switching and overcurrent protection in one device, so you can control a circuit and protect it with the same part.

Key Features:

• 40 amp continuous current rating in a single-pole design
• AC and DC rated for a wide range of system applications
• Toggle-style actuator for easy on/off switching
• Voltage rating: 277 Vac / 80 Vdc, suitable for 12 and 24 Vdc systems with added protection for 36 and 48 Vdc applications
• Interrupt capacity: 5 kA at 277 Vac and 1.5 kA at 80 Vdc, for circuits connected to large paralleled battery banks
• Electrical endurance: 6,000 cycles at rated current
• Compliance: UL 1077
• Stainless steel self-locking hardware for secure, long-lasting connections
• Mounts in standard panels that accept A-Series and C-Series magnetic-hydraulic breakers

This breaker protects electrical circuits from short circuits and overcurrent loads, which helps prevent wire insulation from overheating. It suits marine, RV, automotive, and other 12V/24V DC electrical panels. Toggle guard and panel plug accessories are available for A-Series breakers to guard against accidental switching and to fill unused panel slots.