20-000 MACOM

Document overview

  • Manufacturer or author: Provided By digicamel.com
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Technical content

Function: The output contacts of frequency relays are ener- gized when the frequency exceeds the adjustable set point. Overfrequency and underfrequency relays are available in 50, 60 and 400Hz. Combination over/ underfrequency “band pass” relays are also avail- able. These are energized at rated frequency and de- energized during overfrequency or underfrequency conditions. Frequency Differential relays are ener- gized between the preset frequencies. The pick-up and drop-out frequency settings are independently adjustable. Operation: The normally open contacts close, and the normally closed contacts open, at all frequencies above the set point. The contacts in the connection diagram, are shown in the de-energized position (below the trip set point). Frequency Sensitive Relays PRODUCT SPECIFICATIONS Sample Part No. 20-050X Type: 20 - Frequency Frequency Range 040 = 40-50 Hz 050 = 50-60 Hz 060 = 60-70 Hz 350 = 350-500 Hz 400 = 400-450 Hz Mounting Options X = Flange blank = Stud Consult factory for additional models. PART NUMBER SELECTION Notes: 1. Remove screw for access to trip adjustment. PART NUMBER SELECTION Part Number 20-000 Series

120 VAC, Single Phase

Frequency pick-up to drop-out differential is 1% max -40 oC to +85 oC ± 1% frequency error over temperature range ± 1% for input voltage of 120 VAC ± 10% 5 amp resistive at 120 VAC or 28 VDC One set N.O., one set N.C. 120VAC 81 O 11/64" DIA. 4 MTG. HOLES 3.0 3 1/23 7/8 3 13/16 4 1/2 #6 - 32 STUDS

6 PLACES

WILMAR™ Protective Relays – 20-000 Series Note: Dimensions in inches. Multiply values by 25.4 for dimensions in mm.