The SL1-BK is a compact limit switch from the SL1 series, designed with a roller plunger actuator and a seal boot for enhanced protection. It utilizes gold-clad cross point contacts in a single-pole double-throw (SPDT) configuration, rated for 0.1A at 125VAC or 30VDC. Housed in a rugged zinc die-cast body, the switch is sealed to NEMA 3, 4, 13 and IEC IP 67 standards. Key mechanical characteristics include a maximum operating force of 1,200 g and a maximum pretravel of 1.5 mm. Its compact size makes it suitable for the miniaturization of machinery and an ideal replacement part for imported machine tools.