From the Manufacturer
This 120 volt Cutler Hammer "CH" 30 amp, single pole replacement circuit breaker is used in a Cutler-Hammer load center. Typical applications, up to 3,600 watts, include well pumps (up to 200'), bathroom heaters and electric motors (1-1/2 hp to 2 hp). These are only suggested applications and cannot assure compliance with all local codes. Please check local electrical codes before starting any electrical project.
Highlights: Size: 1" Plug-in HACR rated 10,000 AIR Switch indicator C.S.A. approved 30 amp, 120/240 vac Non-interchangeable Fits Cutler-Hammer CH panels Standard overload and short circuit protection in Cutler- Hammer load centers UL listed Carded