Product Description: The Merlin Gerin NSF150HC is a Molded Case Circuit Breaker from the Compact family. It is a 3-pole, 600 Volt, 150 amp breaker with a 65kA@480V AIC rating. This NSF-type breaker features Bolt-On connections and Magnetic Only protection. It is manufactured by Merlin Gerin, Schneider Electric, and Square D.