Allen-Bradley 837-V2J NSNBC15 Industrial Relay

The Allen-Bradley 837-V2J NSNBC15 is an electro-mechanical temperature control switch (Style V) designed for direct vertical immersion in liquids within industrial equipment. It resides in a rugged NEMA 4 & 13 enclosure, weighs about 3 lb, and measures roughly 9.88 inches tall by 3.81 inches wide and 3.22 inches deep, making it suitable for compact control panels and immersed installations. The unit supports an adjustable operating range starting at 110°F, with a maximum setpoint of 240°F and a mid-range differential of 6°F, and ships with standard trip/reset settings factory-set for the configuration. The standard SPST, non-inductive contact block is rated 5 A at 240 V AC and 3 A at 600 V AC, while the control circuit rating is AC-125 VA from 24–600 V or DC 57.5 VA in the 115–230 V range; there is no pilot light modification available for this model. Temperature measuring range is approximately 110–200°F (43.3–93.3°C) for the 837-V2J family, aligning with immersion-temperature control needs in heating and cooling processes that demand reliable cycling and enclosure protection. The NSNBC15 suffix designates a specific variant within the 837-V2J family, reinforcing its suitability for applications requiring direct immersion temperature sensing and robust enclosure performance in harsh industrial environments.