1-800-959-4014

 Patented Autophase technology actually corrects common wiring errors. Analog and network models available. Click on the appropriate series to see details below...

...or select data sheets in PDF format from this list.
Series

Outputs

Input Voltage

Current Range

Data Sheet

 
APO 4-20mA & 0-5 or 0-10 VDC & pulse outputs 120,208,240,480 or 600VAC 5-3000A pdf Features and Application
APN RS232 or Modbus RTU 24 data points 120,208,240,480 or 600VAC 5-3000A pdf Features and Application
APT 4-20mA, 0-5VDC or 0-10 VDC 120,208,240 or 480 VAC 5 A or ProteCT pdf Features and Application
APMR Dual Relay Outputs, plus 4-20mA 120,208,240 or 480 VAC 5 A or ProteCT pdf Features and Application
APS 4-20mA Loop Powered 120,208,240, or 480 Self-contained CT Input, 180 A max pdf Features and Application

Larger version - 500x355 - Click

The AutoPhase Advantage

AutoPhase makes power transducer installation simple.

There are over 40 ways to wire up a 3 phase, 4 wire kW transducer. For example, reversing the orientation of a CT flips the output waveform, tricking ordinary watt transducers into thinking there is a 180 degree phase shift. Or if CT and voltage inputs are mismatched, the transducer thinks there is a 120 degree phase shift. Either way, you have a problem.

AutoPhase identifies the phases and polarity automatically and corrects for the error in software. This eliminates flashing "ERROR" lights, tedious and dangerous reconnecting of inputs. AutoPhase even tells you which CTs are reversed and which phases are mismatched!

AutoPhase is protected by US Patent 5,652,505


APO

Larger version -500x355  Click Features

  • Meter Grade Digital accuracy for reliable measurement.
  • Advanced microprocessor running at 5 MIPS (faster than many PCs!) provides high-speed sampling, accuracy and flexibility impossible with traditional kW/kWH transducers.
  • Accepts ProteCT Current Transformers with 0.333 V safe output... Eliminates need for costly shorting blocks, or
  • Accepts traditional current output (5 Amp) CTs... reuse your existing CTs.
  • Available in our standard, module format, or in a NEMA I hinged cover enclosure. OEM versions in an open board format can also be supplied.

Specifications
Power Required None... Self-powered
Accuracy 0.5% FS, True RMS Power
Voltage Range 120-600 VAC, Auto Range Select, Up to 12 KV with optional Potential Transformers
Amperage Range 5-5000 Amps with ProteCTs
50-3000 Amps with Current Output CTs
Isolation Voltage 3,700 VAC
Built-In Fusing 600 VAC, 0.5A (No External fuses required)
Connections Voltage: 12" Leads, # 18 AWG, pre-tinned
Current Inputs & All Outputs: Captive screw terminal accept # 14-22 AWG wire
Analog Outputs 4-20 mA and 0-5 or 0-10 VDC, both available at all times
kW 0-5 VDC or 0-10 VDC (User Selectable) Self Powered, Opto Isolated, 10 K ohm Minimum Load impedance
kW 4-20 mA, Self Powered 24VDC , Opto Isolated, 500W Maximum Burden
Discrete Outputs Undervoltage, kWH pulse, both available at all times
System Alarm Solid State N.O. Contact, 100mA @ 30 V AC/DC (75, 80. 85 & 95% Undervoltage Setpoints, phase loss protection)
kWH Solid State Contact, 100mA @ 30 V AC/DC, Ranges 0.01, 0.1, 1.0 & 10 kWH per pulse
LCD Display Two Line, 16 Character
Environmental -18 to 50 C (0 to 122 F), 0-95% RH, NC
Dimensions Module: 9"Hx6.5"Wx2.6"D (23x16.5x6.5CM)

NEMA1: 10"Hx10"Wx4"D(26x24x10CM)

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APN

Larger version - 500x355 - Click Features

  • Direct Connection to network, Modbus RTU output with no expensive interface.
  • Patented AutoPhaseTM Technology corrects common wiring errors such as CT reversal and phase mismatch. This can save hours of field labor!
  • Meter Grade Digital accuracy.
  • Advanced microprocessor running at 5 MIPS (faster than many PCs!) allows measurement up to the 70th harmonic.
  • Accepts ProteCT Current Transformers with 0.333 V safe output... Eliminates need for costly shorting blocks, or
  • Accepts traditional current output (5 Amp) CTs... reuse your existing CTs.
  • Available in our standard, module format, or in a NEMA I hinged cover enclosure. OEM versions in an open board format can also be supplied.

Specifications
Power Required None... Self powered from the monitored circuit
Accuracy 0.5% FS, True RMS Power  +/- 0.5 Hz
Voltage Range 120, 208, 240, 480 or-600 VAC, Auto Range Select, Up to 12 KV with optional Potential Transformers
Amperage Range 5-5000 A with ProteCTs (need no shorting block!)
50-3000 A with Current Output (5A) CTs
Isolation Voltage 3,700 VAC
Built In Fuse rating 600 VAC, 0.5A (No External fuses required)
Connections Voltage: 12" Leads, # 18 AWG, pre-tinned
Current Inputs & All Outputs: Captive screw terminal accept # 14-22 AWG wire
Environmental -18 to 50 C (0 to 122 F), 0-95% RH, NC
Dimensions Module: 9"Hx6.5"Wx2.6"D (23x16.5x6.5CM)
NEMA1: 10"Hx10"Wx4"D(26x24x10CM)
Modbus Protocol RTU Version, RS485 Addressable, 9600 Baud
Optional RS232 Point to Point, ASCII data string, 9600Baud
Approvals UL and UL-C Listed

Network Variables

Modbus RTU Network Variables (All Values True RMS, 24 Points)
 

Ph-A

Ph-B

Ph-C

Total
Voltage
Amperage
kW
kWH
kVA
Power Factor
Frequency
CT Value

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APTAPT Made to Order!

 Features

  • 4-20 mA output, internally powered, optional 0-5 or 0-10 VDC, proportional to watts
  • Externally powered from 120 VAC or 24VDC
  • Meter Grade Digital accuracy.
  • True RMS output
  • Accepts ProteCT Current Transformers with 0.333 V safe output... Eliminates need for costly shorting blocks, or
  • Accepts traditional current output (5 Amp) CTs... reuse your existing CTs.
  • DIN rail mounting eases installation

Specifications
Power Required 120 VAC or 24VDC
Accuracy 0.5% FS, True RMS Power +/- 0.5 Hz
Voltage Range 120, 240, or 480 VAC,  Up to 12 KV with optional Potential Transformers
Amperage Range 5-5000 A with ProteCTs (need no shorting block!)
50 A and higher with Current Output (5A) CTs
Isolation Voltage 3,700 VAC
Connections Captive screw terminals accept # 14-22 AWG wire, (6) for three CT inputs, 2 for power supply, two for output
Environmental -20 to 50 C (-4 to 122 F), 0-95% RH, NC
Dimensions 4.93"Hx3.76"Wx3.85"D (125.17x95.6x97.8mm)
Approvals UL and UL-C pending

APMRAPMR Power Operated Relays!

 Features

  • Dual Electromechanical Relay Outputs.
  • Analog Output (4-20mA, 0-5 VDC or 0-10VDC)
  • Meter Grade Digital accuracy.
  • True RMS Output
  • Accepts ProteCT Current Transformers with 0.333 V safe output... Eliminates need for costly shorting blocks, or
  • Accepts traditional current output (5 Amp) CTs... reuse your existing CTs.
  • DIN Rail Mounting eases installation

Specifications
Power Required 120 VAC or 24 VDC
Accuracy 0.5% FS, True RMS Power +/- 0.5 Hz
Voltage Range 120, 240, or 480, Up to 12 KV with optional Potential Transformers
Amperage Range 5-5000 A with ProteCTs (need no shorting block!)
50A and higher with Current Output (5A) CTs
Isolation Voltage 3,700 VAC
Connections Captive screw terminals accept # 14-22 AWG wire, (6) for three CT inputs, 2 for power supply, two for analog output, four for relay outputs
Environmental -20 to 50 C (-4 to 122 F), 0-95% RH, NC
Dimensions 4.93"Hx3.76"Wx3.85"D (125.17x95.6x97.8mm)
Approvals UL and UL-C pending

APS

 Features APS Internal PT

  • Compact Design allows for easy monitoring of power in confined space, like MCC buckets.
  • Single phase or three phase (monitoring two current carrying conductors)
  • Accuracy +/-1% Full Scale
  • Hall element based current sensing.
  • Self-contained current sensing element, no external CTs required!
  • Needs no CT shorting block
  • Ranges are factory set, no jumper to misplace!

 

Specifications
Power Required None... Output 4-20 mA Loop Powered
Accuracy 1.0% FS, True RMS Power
Voltage Range 120, 240, or 480 VAC, +/-25%
Input Range Models from 500 Watts to 100 kW
Isolation Voltage 3,700 VAC
Connections Finger safe terminal blocks, 10-24 AWG capacity
Current Transformer Internal: Monitor one conductor for single phase, or three phase wye loads (output will be proportional to 1/3 watts) or two conductors passing in opposite directions for three phase delta connected loads. Balanced loads are assumed.

Click here for wiring diagram

Environmental -18 to 50 C (0 to 122 F), 0-95% RH, NC
Dimensions 3.88"L x 1.5"W x 2.95 H max.
Aperture 0.74"
Approvals UL and UL-C Pending

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