Type CC Tenant Circuit Breaker
they require only half the mounting space needed for 600VAC class RK fuses
From the ManufacturerMurray AFCI plug in circuit breakers are intended for use in Murray load centers or meter combinations
Plug-On Line Terminal:Plug-On Clip Load Terminal:Lug Poles:2P
SIEMENS BQ3B05000S01 U 50A 240V 3P Used Type CC Tenant Circuit BreakerBolt On Circuit Breaker, 50 Amps, Number of Poles 3, Circuit Breaker Type Shunt Trip, AC Voltage Rating 240VAC, DC Voltage Rating Not Rated, For Use With Siemens Panelboards, Series BQ, Terminal Connection Lug, Max. AIR Rating 10 kA, Frame Size 125A BQ, Min. Wire Size 8 AWG, Max. Wire Size 6 AWG (Cu), 4 AWG (Al), Length 3. 75 In., Width 3. 00 In., Depth 3. 00 In., Standards UL Listed, CSA Certified, HACR Rated