1 4 /4 1 5 /2 5.0 Voltage Sensitive Relays Function: WILMAR Protective Relays D101X Series, ANSI/IEEE C37.90-1978 3 Phase Adjustable, Close Differential UL file No. E58048 CSA file No. LR61158 6 - 32 STUDS Close Differential Relays are voltage sensitive. The 10 PLACES pick-up and drop-out voltage settings are indepen- dently adjustable, which allows precise setting of the differential voltage. This relay is available in a wide range of AC voltages. Their primary application is the sensing and control of transfer switches. H2 Operation: The output contacts will close when the voltage of H1 all three phases is above the pre-set pick-up point, and will open when any one phase drops below its drop-out setting. 13 /64 DIA. 4 MTG. HOLES Note: Dimensions in inches. Multiply values by 25.4 for dimensions in mm. PRODUCT SPECIFICATIONS Part Number D101X Nominal Voltage ............................... AC, Three Phase, see part number selection Nominal Frequency .......................... 50 to 500 Hz. PART NUMBER SELECTION Pick-Up Adjustment Range ............. 66-100% of nominal voltage, screwdriver adjustable Sample Part No. D101X Drop-Out Adjustment Range ........... 66-100% of nominal voltage, screwdriver adjustable Model: L-L Volts Output Contacts ............................... SPNO D101X = 120 VAC Contact Ratings ................................ 5 amp resistive at 120 VAC or 28 VDC D101-6X = 208 VAC D101-4X = 240 VAC Operating Temperature Range ........ -20C to +85C D101-10X = 380 VAC Power Consumption H1 H2 D101-7X = 480 VAC Model Each Phase (inches) (inches) D101X 2 VA max. 2 2 11/16 Notes: D101-4X 3 VA max. 3 1/2 4 3/16 1. Remove screws for access to pick-up and drop-out D101-6X 3 VA max. 3 1/2 4 3/16 trip adjustments. D101-7X 4 VA max. 3 1/2 4 3/16 2. Clockwise rotation of the pick-up and drop-out D101-10X 4 VA max. 3 1/2 4 3/16 adjustment will raise the voltage trip point. Consult factory for additional models. 27 Tyco Electronics / www.tycoelectronics.com / Factory Direct Technical Support: 800-253-4560, ext. 2023 (U.S., Canada, Mexico) or 805-220-2020, ext. 2023 (International) 5.0 4.0