AMS Instrumentation and Calibration introduces the SLA Series of high-reliability three-phase monitoring relays recently released by the ATC Diversified Electronics division of Marsh Bellofram.
The SLA Series three-phase monitoring relays provide cost-effective protection from phase loss, under voltage, and phase reversal conditions that can contribute to premature equipment failure and downtime within motor control centres, critical motors and pumps, and other Delta and Wye systems. The SLA Series can effectively monitor current ranges up to 480 VAC with ABC phase sequence.
Available in a choice of several enclosure styles with a selection of fixed, lock shaft, or screwdriver adjustment, the SLA Series models are available with either SPDT (enclosure styles A and N) or DPDR (style E) output. An onboard LED offers a quick and clear visual reference of system conditions, by lighting up when all conditions are ‘normal’. Most units also feature automatic reset, with manual option available for E style enclosures. UL listed versions are available upon request.
Being cost-effective and versatile, the SLA Series is ideal for a variety of applications, including water and wastewater pumps and motors, sewage plant booster control stations, grinders, irrigation equipment, oil and gas machinery, machine tooling, conveyors, HVAC/R, elevators and escalators, processing equipment, construction and agricultural machinery and wind power turbine monitoring.