Mechanical Products has just introduced their 300 Amp version of their Type 1 Auto Reset 17 Series circuit breaker. These robust Water proof and Ignition protected breakers are IP67, SAE & ABYC Compliant and Proudly made in USA! No Tariffs or long lead times (4-6 weeks). Spemco is a proud distributor of Mechanical Products and we are already stock a variety of 17 series available on our website: High Amp Breakers However we are pleased to now be able to offer the type 1 Auto Reset version of the Mechanical Products 17 Series in 300 Amps with 3/8" studs available for quote today. Contact sales@Spemco.com or call 800-482-2828 for more information!