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Model Number Description
DC Switchboard Meters
AC Switchboard Meters - Iron Vane & Rectifier types
Wattmeter's

Temperature Indicators
Frequency Meters
Voltmeters
Standard Features
General Specifications
Options

 

Wattmeters

Drilling Plan

The A&M Model 4981 Wattmeters are qualified to MIL-W-19088. They are supplied in a self-contained package which incorporates the unique A&M sealed watertight design. They are available for both 60Hz and 400Hz, single phase and 3 phase 3 wire operations. A&M is qualified to MIL-W-19088 for both transformer and non transformer rated ranges.

 

  • Configuration: 3-phase 3-wire 2 coil
  • Potential Input: 120V AC   /    PT rated above 120VAC – See chart below
  • Current input: 5A AC   /   CT rated above 5AAC – See chart below
  • Frequency: 4981-005 60 Hz   /   4981-006 400Hz
  • Accuracy: 1.5% of full scale
  • Temperature: Operating:  -20C to +65C  |   Storage: -65C to +100C
  • Dielectric Test: 1500 VRMS
  • Burden: 2.0 VA Current coil  |  2.5 W Potential coil

 

Click here for a larger image

Scale Range

Frequency

Model Number
(Military Designation)

MIL Spec

0-1 KW

60Hz

4981-005
(MR49W001ACKWH)

MIL-W-19088

0-1KW

400Hz

4981-006
(MR49W001AFKWH)

MIL-W-19088

CT/PT Rated
Per Chart*

60Hz

4981-XXX
(MR49WXXXACKWH)

MIL-W-19088

CT/PT Rated
Per Chart*

400Hz

4981-XXX
(MR49WXXXAFKWH)

MIL-W-19088

 

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