2337211552D3GY1552D3GYHammond enclosure series 1552. handheld enclosures in black or grey made of flame-retardant ABS plastic (UL94V-0)ergonomically designed to lie comfortably in one's handwith a recessed cover for a keypad or displaysuitable wall mounts (1552CH_/1552DH_), cable gland kits (1552_KIT_) and replacement end panels (1552_-10) available comply with IP54