2P Shunt Trip Bolt On Circuit Breaker 50A 120/240VAC Murray strongly recommends against the

Murray strongly recommends against the use of "used" breakers

tin plated Aluminum bus bars

this breaker is compatible with QO and Homeline load centers

The 2014 National Electric Code has mandated Ground Fault and Arc Fault circuit protection on many 15 & 20 amp kitchen and laundry circuits

2P Shunt Trip Bolt On Circuit Breaker 50A 120/240VAC Murray strongly recommends against the'Bolt On Circuit Breaker, 50 Amps, Number of Poles 2, Circuit Breaker Type Shunt Trip, AC Voltage Rating 120 240VAC, DC Voltage Rating Not Rated, For Use With Siemens Panelboards, Series B, Terminal Connection Lug, Max. AIR Rating 10 kA, Frame Size BL, Min. Wire Size 8 AWG, Max. Wire Size 6 AWG (Cu), 4 AWG (Al), Length 3. 56 In., Width 2. 00 In., Depth 3. 00 In., Standards UL, HACR Rated'