CN35 lighting contactors include a 1NO maintaining auxiliary contact mounted on right hand side (on 10A, two- and three-pole devices, auxiliary contact occupies 4th power pole position- no increase in width). The 10-60A devices will accept additional auxiliary contacts on the top and/or sides. Auxiliary contact blocks are designed for snap-on installation-fast, easy installation (no tools required up to 60A). All auxiliary contacts are of the bifurcated design with parallel circuit paths. This redundant path provides very high reliability. Auxiliary contacts can be snapped on the side (up to two circuits-per auxiliary contact) and on the top (up to four circuits). Auxiliary contacts for larger contactors, 100-400A sizes, will accept side mounted auxiliaries only and easily attach to the side of the contactor with two screws.