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AMPROBE WH-3T20A4W KILOWATT HOUR METER

TOTALIZER 3 PANEL 4W 2000A MAX

Three Phase 4 Wire Y

Optional Totalization
Package connects 2
additional panels to
the same meter

• Measure energy usage (kWh)
• Available for single phase (2 and 3 wire) and three phase (delta and Y) systems
• Pre-wired for fast installation
• +/- 1% Accuracy
• Works with 50 and 60 Hz circuits
• Rugged housing with unbreakable Poly-Carbonate covers and non-combustible bases
• Current Transducer(s) included for a complete instrument
• 25 Year warranty
• Optional Totalization packages permit one three phase meter to measure total kWh on two or three separate three phase electrical systems

Selecting the Current Rating of the Meter
All Amprobe KWH meters are supplied with industry standard 5A secondary solid core current transformers (CT's) in order to conform to ANSI standards. The use of split core transformers are not recommended in watt-hour metering because of the inaccuracies that may result from the excessive phase shift caused by the split CT's themselves, particularly at light loads.
The selection of the current rating of the meter should correspond to the maximum current rating of the panel to be measured or to the current interrupt device of the load to be measured.
The number before the "A" in the model number is the maximum current rating in hundreds of amps. i.e. 1=1 OOA, 2=200A, 4=400A etc. To select the maximum current rating of the meter, insert a number before the "A" in the model number. The number of CT's provided with the meter is 1 less than the amount of wires; a 2-wire meter will have one CT, a 3-wire meter will have two CT's, a 4-wire meter will have 3 CT's.

Multiplier
To obtain the amount of kilowatt-hour or "Peak" Demand in kilowatts, the meter readout must be multiplied by an associated multiplier that is stamped on every meter. The multiplier is simply the CT ratio. A "lOOa meter would come with 100A:5A CTs and would have a multiplier of 20. A 200A meter would come with 200A:5A CTs and would have a multiplier of 40 and so on.

If you are interested in the AMPROBE WH-3T20A4W or items similar to it, please do not hesitate to contact us for more information. Our sales representatives will be happy to provide you with the most up-to-date information about the AMPROBE WH-3T20A4W , as well as helping you find the product solution that fits your needs.

• Model: WH-3T20A4W
• Manufactured by: Amprobe