Potential Transformers (HX, PT & VT Series) 0 73 H S1 E A J S X2 ER TYCPLASC RISE ADA AN RM 5° A5L DE IN C FO M S 1 A M ER AN TH - H1 TR X1 A H V 1P 50 40V Hz - 2 /60 H2 50 V 20 - A 55 VT TE DA B C F E D A G POTENTIAL TRANSFORMERS • Used (with 150 Volt full scale A.C. voltmeters) to measure the voltage of 240, 480 or 600 VAC systems. • Primary insulated for 4.0 KV rms test, suitable for L.V. switchgear and motor control use. • 50/60 Hz. operation. • Open construction - "Type H" - Insulation system 55 degree C rise, Class 105. • CSA certified LR3902 or LR38216. • The nominal line voltages of 240 and 480 volts may be exceeded by 25% for 60 Hz. operation. Part No. Nominal Line Voltage Ratio Pri. / Sec. Accuracy % VA Thermal Rating VT55A HX54A VT57A HX74A VT59A HX94A 240 240 480 480 600 600 240:120 240:120 480:120 480:120 600:120 600:120 1.2 1.2 1.2 1.2 1.2 1.2 0-8 0-20 0-8 0-20 0-8 0-20 50 100 50 100 50 100 Overall Dimensions (Inches) Mounting Mtg. Slot Centers (Inches) (Inches) A B C D E G H 3.00 3.75 3.00 3.75 3.00 3.75 3.25 4.00 3.25 4.00 3.25 4.00 2.56 3.13 2.56 3.13 2.56 3.13 2.50 3.13 2.50 3.13 2.50 3.13 2.50 3.13 2.50 3.13 2.50 3.13 .22 .22 .22 .22 .22 .22 .44 .44 .44 .44 .44 .44 Ship Wt. Lb. 3.0 6.6 3.0 6.6 3.0 6.6 LOW VOLTAGE PT • Used to measure the voltage of 120 VAC systems with 5 Volt full scale A.C. voltmeters. • 50/60 Hz. operation. • Choice of chassis mount or P.C. board pin mount. • High accuracy windings (1%). Part No. Mtg. Hole (Inches) Ship Wt. oz. 0.187 n/a 3.4 2.1 Instrument PT120CF PT120PC Overall Dimensions (Inches) H D W 1.25 1.10 2.063 1.40 1.08 1.03 CANADA © EUROPE Guelph, Ontario (519) 822-2960 St. Laurent, Quebec (514) 343-9010 www.hammondmfg.com Cheektowaga, NY (716) 630-7030 110 USA Basingstoke, UK 01256 812812 AUSTRALIA Queenstown, Australia 61-8-8240-2244