Hi Michael,

as per supplier, "The one you are requesting is TPS4EL130X0B2, while the one we quoted was TPS4EL130XWB2. Yours has a standard configuration, while hers has a Terminal Lug configuration. All Busway SPD’s come with terminal lugs instead of standard wire connection, so please verify with Google if this is for busway." Please confirm this with me so I can move forward with the quote. 
Thanks!!