ATC Diversified Electronics ARB-240-ADA Industrial Relay

ARB-240-ADA is ATC Diversified Electronics' duplexor, a DPDT alternating relay that cycles between two loads in a single package to extend life and simplify control in motor and pump systems. It provides two Form-C (DPDT) contacts with a 10 A rating at 240 VAC (resistive), 360 VA inductive, and horsepower limits of 1/8 HP at 120 VAC and 1/4 HP at 240 VAC. The device accepts 24, 120, 208, or 240 VAC control voltages at 50/60 Hz and draws about 3 VA for the coil, with an electrical life of 100,000 operations. The ADA variant includes an LED indicator that shows the active output position, while terminations are Industrial Plug-in for straightforward panel connections. The enclosure uses a Lexan dust cover and the unit weighs about 4.5 oz; operate temperatures range from -20°C to +55°C (-4°F to 131°F). As part of ATC's ARB/ARA duplexor family, ARB-240-ADA is used to sequence two loads (for example, two pumps) in order to balance operation and extend component life in water/wastewater, HVAC, conveyors, and other industrial control panels.