8903S lighting contactors are for lighting control applications. 8903S lighting contactors are available in either mechanically held or electrically held versions. This is a mechanically held device. This contactor is designed to switch 30 amperes. This device 4 pole device has 4 NO contacts. Supplied with a 110/120 VAC 50/60 Hz interchangeable operating coil but other coils are available in a wide variety of common voltages up to 600VAC. Contactor is an open device. A variety of enclosure types are available. Coil and contacts are easily replaced. Lighting contactor is 7.15 inches tall, 4.54 inches wide and 4.68 inches deep. 8903L lighting contactors are UL Listed and CSA Certified.