DC477 - Floor springs Application ASSA ABLOY branded Floor Spring with closing force EN2-4 meaning suitable for use on doors with a maximum weight of 80kg and 1100mm wide. Non Hold Open variants are ideal for use on fire doors (when adjusted to give a size 3 closing force) while the Hold Open units are suitable for non fire doors. While the units can be ordered complete with a stainless steel cover, all other accessories such as spindles are sold separately. Specification Finish Standards Downloads DC477 - Floor springs (.pdf, 52 kB) Close Ordering Options DC477A DC477A floor spring EN2-4 hold open 105deg c/w st steel cover DC477A/NHO DC477A/NHO floor spring EN2-4 non hold open c/w st steel cover DC477 DC477 floor spring mech only hold open 105deg DC477/NHO DC477 floor spring mech only non hold open Close DC450A - Floor springsASSA ABLOY branded Floor Spring with closing force EN2-4 … DC475 - Floor springsASSA ABLOY branded Floor Spring with closing force EN2-4 …