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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: -20°C to +65°C |
Storage: -65°C to +100°C
- 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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