New Product Three-phase Voltage, Asymmetry, and Phase-sequence Phase-loss Relay K8DS-PZ Ideal for Monitoring 3-phase Power Supplies for Industrial Facilities and Equipment. Greater resistance to inverter noise. Monitor undervoltages, overvoltages, voltage asymmetry, phase sequence, and phase loss in three-phase three-wire circuits with one unit. One SPDT output relay, 5 A at 250 VAC (resistive load). World-wide power specifications supported by one unit. (Set with a rotary switch.) Relay status can be monitored using LED indicator. Refer to Safety Precautions on page 9. Refer to page 7 for commonly asked questions. For the most recent information on models that have been certified for safety standards, refer to your OMRON website. Ordering Information List of Models Rated input voltage* Model 200, 220, 230, or 240 VAC K8DS-PZ1 3-phase 3-wire mode 380, 400, 415, or 480 VAC K8DS-PZ2 Note: The input range is set with a rotary switch. * The power supply voltage is the same as the rated input voltage. 1K8DS-PZ Ratings and Specifications Ratings K8DS-PZ1 Three-phase, three-wire Mode: 200, 220, 230, or 240 VAC Rated input voltage K8DS-PZ2 Three-phase, three-wire Mode: 380, 400, 415, or 480 VAC K8DS-PZ1: Approx. 1.7 VA Input load K8DS-PZ2: Approx. 2.8 VA Overvoltage/Undervoltage Operating value setting range (OVER/UN- 2% to 30% of rated input voltage DER) (ASY) Asymmetry 5% to 22% of rated input voltage Operating value (OVER/UNDER) Operates at 100% of set value. Asymmetry operating value = Rated input voltage Asymmetry set value (%) Operating value (ASY.) The asymmetry operation will function when the potential difference between the highest and low- est voltage phases equals or exceeds the asymmetry operating value. Reset value 5% of operating value (fixed) Reset method Automatic reset Overvoltage/Undervolt- 0.1 to 30 s age Operating time Asymmetry 0.1 to 30 s setting range (T) Phase sequence 0.1 s0.05 s Phase loss 0.1 s max. Power ON lock time (LOCK) 1 s0.5 s Indicators Power (PWR): Green, Relay output (RY): Yellow, Alarm outputs (ALM): Red Output relays One SPDT relay output Rated load Resistive load 5 A at 250 VAC 5 A at 30 VDC Output relay ratings Maximum switching capacity: 1,250 VA, 150 W Minimum load: 5 VDC, 10 mA (reference values) Mechanical life: 10 million operations min. Electrical life: 5 A at 250 VAC: 50,000 operations 3 A at 250 VAC: 100,000 operations Ambient operating temperature 20 to 60C (with no condensation or icing) Storage temperature 25 to 65C (with no condensation or icing) Ambient operating humidity 25% to 85% (with no condensation) Storage humidity 25% to 85% (with no condensation) Altitude 2,000 m max. Terminal screw tightening torque 0.49 to 0.59 Nm Recommended wire 2 Solid wire: 2.5 mm Twisted wires: AWG16, AWG18 Note: 1. Ferrules with insulating sleeves must be used with twisted wires. 2. Two wires can be twisted together. Terminal wiring method Recommended ferrules Al 1,5-8BK (for AWG16) manufactured by Phoenix Contact Al 1-8RD (for AWG18) manufactured by Phoenix Contact Al 0,75-8GY (for AWG18) manufactured by Phoenix Contact Case color N1.5 Case material PC and ABS, UL 94 V-0 Weight Approx. 65 g Mounting Mounts to DIN Track. Dimensions 17.5 80 74 mm (WDH) 2