...sequence Phase-loss Relay 1 Three-phase Voltage, Asymmetry, and Phase-sequence Phase-loss Relay K8DT-PZ Protect motors and other equipment from unstable voltages in the power supply system. D...

https://www.ia.omron.com/data_pdf/cat/k8dt-pz_n208-e1_1_9_csm1050144.pdf

...S-PZ Upper and lower limits 17.5 mm Push-In Plus One SPDT relay output or one transistor output K8DT-PZ Fixed 22.5 mm Screws One SPDT relay output K8AK-PT Fixed 22.5 mm Screws One SPDT relay ...

https://www.ia.omron.com/data_pdf/cat/k8dt_n210-e1_3_1_csm1050151.pdf

...hase sequence、Phase loss、Three-phase Undervoltage、Three-phase Overvoltage、Three-phase Asymmetry K8DT-PZ Cat. No. N208 Temperature monitoring Thermocouple or platinum resistance thermomete...

https://www.ia.omron.com/data_pdf/cat/value_design_for_panel_y235-e1_6_4_csm1101680.pdf