The ILME CHP-16 C-Type surface mount standard housing is size 77.27 and features two levers with a PG 21 cable entry. The body is epoxy coated die cast aluminum with a polyamide handle and stainless steel levers. Insert center distance: 77.5 x 27 mm. Rated IP 66 when attached and locked down. The clamping force supplied by the CHP-16 is constant due to the stainless steel locking system.