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MFM3740 pages
MFM374
Multifunction Meter
seU 1 VL4. 1 W Wh 1 VAr VArh PF Hz 1 VA VAh | C 1? | MFH374 ^ |
t | L/M | VAF ^ 1—PHG—' J |
Features:
• 30 (True rms) Voltage
• 30 (True rms) Current
• 30 Power Factor
• 30 Power (Active, Reactive, Apparent)
• Energy (Active, Reactive, Apparent)
• Frequency
• Programmable CT/PT Primary/Secondary
• Modbus RTU Communication (RS485) (Optional)
• Single Pulse Output
Size: 96mm x 96mm (1/4 DIN)
Certifications: C€ c@us
LISTED
Technical Specifications
Display
Display
Digit
Digit Height
Input Specifications
Electrical Connection
Input Voltage Range
Input Current Range
Frequency
Display Scrolling
Display Reset
Resolution
Accuracy
Memory Retention
Measuring Parameters
Output Specifications
Pulse Output
Communication
3 row, LED
4
0.56" (14.2mm)
30-3/4 wire, 20-3 wire, 10-2 wire
19 to 519V AC, (Phase to Phase)
11 to 300V AC, (Phase to Neutral)
10mA-5A (6A Max)
45Hz-65Hz
Automatic / manual
Programmable (for energy)
For energy: 0.01k, 0.1k, 1k, 0.01M, 0.1M, 1M
(depending upon CT ratio X PT ratio)
For Power, Voltage,
Current: Auto resolution
For Power factor: 0.001
Voltage (L-N / L-L), Current: ±0.5% of FS
Power factor: ±1%
Frequency: ±0.1%
(ForV>20VL-N, V>35V L-L)
Power (kW, kVA, kVAr): 1%
Energy (Active , Reactive, Apparent): Class 1
10 years (for energy)
Voltage (L-L / L-N) (Individual / Average)
Current (11, 12, 13) (Individual / Average)
Frequency, Power Factor (Individual / Average)
Active, Reactive & Apparent power (Individual /
Total), Active, Reactive & Apparent Energy
(Total)
Voltage Range: External 24V DC
Current Capacity: 100mA max
Pulse Width: 100 ms ±5 ms
RS485 MODBUS Communication
Supply Specifications
Auxiliary Supply
MFM374/374-C: 85 to 270V AC (50/60 Hz)
MFM374/374-C-24V: DC-18 to 42V
AC-18 to 28V (50/60 Hz)
Resettable Parameters
CT Primary
CT Secondary
PT Primary
PT Secondary
1A/5A to 10.000A (Programmable for
any value)
1A/5A (External CT must be connected
for current more than 5A)
100V to 500kV (Programmable for any value)
100V to 500V (L-L) (Programmable for any
value)
Environmental Specifications
Temperature
Humidity (non-condensing)
Operating Temperature: -10 to +55° C
Storage Temperature: -20 to +75°C
Upto 85% RH
Mechanical Specifications
Mounting
Weight
Protection Level
Panel mount
MFM374/374-C:320gms
MFM374/374-C-24V: 300gms
IP65 for faceplate
Dimensions
99
90.5 91-5
99.
Front bezel
—50 —
Side view
— 91.5—i
Panel cutout
www.selec.com
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