描述

The DNRU220A is a liquid level control relay designed for pump-up applications with conductive liquids such as tap water, seawater, sewage, and chemical solutions. It features a 10 Amp SPDT relay with AgCdO contact material, adjustable probe sensitivity ranging from 4.7 kO to 100 kO, and operates at 220 VAC ±15% (50/60 Hz) with a maximum power rating of 2500 VA. The relay energizes when the level falls below the low level probe and de-energizes when the high level probe is reached, with an electrical life of 2×105 cycles at 2200 VA resistive load and mechanical life of 3×106 operations. The device is UL listed and CSA recognized, with an operating temperature range of +14°F to +140°F, making it suitable for industrial pump control, water treatment systems, and tank level monitoring applications.