PILZ-837251 Pilz Voltage Relays

Pilz PILZ-837251 is a protection unit designed for 3-phase voltage monitoring, including overvoltage and undervoltage monitoring functions. It is suitable for DIN rail mounting and operates within an ambient air temperature range of -15 to +55°C. The unit has a net height of 87 mm and supports safety output contacts ratings from 0.1A to 5A at 24Vdc (DC-1; 120W) and 1.5A at 24Vdc (DC-13). Connection is facilitated through fixed screw terminal connections. As part of the S3UM sub-range, it measures 22.5mm in width, offers an IP40 degree of protection, and requires a supply voltage of 20.4-26.4Vdc (24Vdc nominal) with a frequency measuring range of 40-400Hz. The housing is made from PPO material, and the unit is designed for a 3-phase (3AC) input network with a 230Vac measuring voltage. It has a net width of 22.5 mm, a power consumption of 1.5 W, and a net depth of 122 mm. Operating modes include fault latching/non-latching and normally energized/de-energized modes. The unit can be stored in temperatures ranging from -40 to +85°C. It features 1 x delayed auxiliary output (SPDT-NO/NC contacts; 0.1-5A 24Vdc DC-1 resistive load; 0.5-10s time-delay selectable (ON-delay energization)), 1 x analog input (L1-L3 voltage measurement), and digital inputs for 1 x automatic reset (Y1-Y2 linked) and 1 x switching commutation (Y2-Y3). Protection functions cover undervoltage, overvoltage, phase sequence, phase failure, and asymmetry.

About the manufacturer: Pilz is one of the manufacturers that offers Voltage Relays that you can order at Powermatic Associates site. We are at the forefront of driving the evolution of industrial automation. Our company ethos is built on dedication and principles, placing a high priority on safety. Over the years, we have been devoted to creating cutting-edge products and solutions tailored to our customers' requirements.

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