Technology for the New Millennium

All of our current transformers are shunted and therefore, safe compared to the other industry standard. They come in three types: split-core, clamp-on, and flexible. They all produce 333mV when they are at their full scale. For example: When a 100A CT has 100 Amps flowing through it, it produces 333mV at secondary (output) wires.

Features common to all of our split-core CTs:

Output is .333V at rated current
Internal precision burden resistor across secondary
Leads-8ft. twisted pair
Epoxy encapsulated housing
Accuracy is measured from 10% to 130% of rated current
Shrouded core blades for protection during installation
Core interleaved at joints for accuracy
Phase angle is measured at 50% of rated current
Snap closing/opening feature
Accuracy = +/- 1%
Phase angle <2degrees

Small Split-core (.75 Inch Opening) Available in: 5 Amp 15 Amp 30 Amp 50 Amp 70 Amp 100 Amp 150 Amp	Medium Split-core (1.25 Inch Opening) Available in: 70 Amp 100 Amp 150 Amp 200 Amp 250 Amp 300 Amp 400 Amp 600 Amp	Large Split-core (2.0 Inch Opening) Available in: 600 Amp 800 Amp 1000 Amp 1200 Amp 1500 Amp

150A Clamp-on

ELECTRICAL SPECIFICATIONS

Current Range: .1A to 150A AC, continuous cycle
Output Signal: 333 mV @ 150A
Accuracy : +/-1.5% of Reading @ 80A-150A
:1% of Reading @ 20A-80A
Frequency Range : 40 Hz to10 kHz
Working Voltage : 600Vrms

MECHANICAL SPECIFICATIONS

Operating Temperature: 14?to 131ºF(-10?to 55ºC)
Storage Temperature: -40?to158ºF(-40?to 70ºC)
Temperature Influence: <0.1% per 10ºK
Maximum Conductor Size: .78"(20mm)
Dimensions: 5.47x2.00x1.18"(139x 51 x 30 mm) Weight: 6.5oz (180g) Colors : Dark gray handles, red jaw color

SAFETY SPECIFICATIONS

Electrical: 30 V max common mode between output and ground 3 kV 50/60 Hz dielectric for 1 min
Electromagnetic Compatibility (CE Mark): EN 50081-1Class B
EN50082-2 Electrostatic discharge IEC 1000-4-2
Radiated field IEC 1000-4-3
Fast transients IEC1000-4-4
Magnetic field at 50/60Hz IEC1000-4-8

500A CLAMP-ON CT

ELECTRICAL SPECIFICATIONS

Current Range: 1 to 500A AC, continuous cycle
Output Signal: 333 mV @ 500A
Accuracy : 1% of Reading @ 500A
Phase Shift : .1 deg @ 500A
Frequency Range : 48 Hz to1000 Hz
Working Voltage : 600Vrms

MECHANICAL SPECIFICATIONS

Operating Temperature: -5?to 122ºF(-15ºto50ºC
Storage Temperature: -40?to185ºF(-40ºto85ºC)
Temperature Influence: <0.1%per10ºk
Jaw Opening: 1.3" (33mm)
Maximum Conductor Size: 1.18"(30mm)
Envelope Protection: IP 20 (IEC529)
Drop Test: 1.5 m (IEC68-2-32)
Mechanical Shock: 100 G (IEC8-2-27)
Vibration: 10/55/10Hz, 0.15mm(IEC68-2-6)
Polycarbonate Material: Handles: 10% fiberglass charged polycarbonate UL 94 V0
Dimensions: 2.6x 7.68x 1.34"(66x 195 x 34 mm) Weight: 14.82oz (420g) Colors : Dark gray handles

SAFETY SPECIFICATIONS

Electrical: Double insulation or reinforced insulation between primary or secondary and outer case of handle per IEC 1010-2-032.
Common Mode Voltage: 600V Category III, Pollution: 2; 300V Category IV, Pollution: 2
Electromagnetic Compatibility (CE Mark): EN 50081-1Class B
EN50082-2 Electrostatic discharge IEC 1000-4-2 Radiated field IEC 1000-4-3
Fast transients IEC1000-4-4
Magnetic field at 50/60Hz IEC1000-4-8

1000A CLAMP-ON CT

ELECTRICAL SPECIFICATIONS

Current Range: 0.1 to1000A AC, continuous cycle
Output Signal: 333 mV @ 1000A
Accuracy : .5% of Reading @ 1000A
Phase Shift : .5 deg @ 1000A
Frequency Range : 30 Hz to5 kHz
Working Voltage : 600Vrms

MECHANICAL SPECIFICATIONS

Operating Temperature: -14?to 122ºF(-10?to 50ºC)
Storage Temperature: -4?to 158ºF(-40?to 70ºC)
Temperature Influence:<0.1% per 10ºK
Jaw Opening: 2.0"(52mm)max
Maximum Conductor Size: 2.0"(52mm)
Envelope Protection: IP 40 (IEC529)
Drop Test: 1 m(IEC68-2-32)
Mechanical Shock: 100 G (IEC8-2-27)
Vibration: 10/55/10Hz, 0.15mm(IEC68-2-6)
Polycarbonate Material: Handles: ABS, Gray UL 94 V0 Jaws: Lexan 500R, Red:UL 94 V0
Dimensions: 8.5x 4.37x 1.77"(216x 111 x 45mm) Weight: 1.21lbs(550g)

SAFETY SPECIFICATIONS

Electrical: Double insulation or reinforced insulation between primary or secondary and outer case of handle per IEC 1010-2-032.
Common Mode Voltage: 600V Category III, Pollution: 2; 300V Category IV, Pollution: 2
Electromagnetic Compatibility (CE Mark): EN 50081-1Class B
EN50082-2 Electrostatic discharge IEC 1000-4-2 Radiated field IEC 1000-4-3
Fast transients IEC1000-4-4
Magnetic field at 50/60Hz IEC1000-4-8

2000A or 3000A CLAMP-ON CT

ELECTRICAL SPECIFICATIONS

Current Range: 1 to 2000A or 3000A AC, continuous cycle
Output Signal: 333 mV @ 2000A or 3000A
Accuracy : .5% of Reading @ 2000A or 3000A
Phase Shift : .5 deg @ 1000A

Frequency Range : 30 Hz to 5 kHz
Working Voltage : 600Vrms

MECHANICAL SPECIFICATIONS

Operating Temperature: -14?to 122ºF(-10?to 50ºC)
Storage Temperature: -13?to 176ºF(-25?to 80ºC)
Temperature Influence:<0.1%per 10ºK
Jaw Opening: 3.54"(90mm)max
Maximum Conductor Size: Cable: 2.52"(64mm), Bus bar:1.97" x 5.31" (50 x 135 mm), 2.52" x 3.94" (64 x 100mm)
Envelope Protection: IP 20 (IEC529)
Drop Test: 500 mm(IEC68-2-32)
Mechanical Shock: 100 G (IEC8-2-27)
Vibration: 10/55/10Hz, 0.15mm(IEC68-2-6)
Polycarbonate Material: Handles: 10% fiberglass charged polycarbonate UL 94V0 Jaws: UL 94V2
Dimensions: 4.72x 12.40x 1.89"(120x 315 x 48mm) Weight: 2.65lbs(1200g) Colors : Dark gray handles with red jaws

SAFETY SPECIFICATIONS

Electrical
IEC 348 4kV 50/60 Hz dielectric for 1m 600 V max common mode between output and ground

FLEXIBLE CURRENT SENSORS

THE NEW EXTENDED LIFE - 300/3000 AMP DUAL-RANGE CT

Measure from 0.5 Arms to 3000 Working voltage = 1000V rms max 36 inches in length Accuracy = 1 % of reading Remembers shape, allowing for pre-forming before use Very low phase shift error Dual range (switchable between 300A and 3000A) Output = 333mV at 300A or 3000A Battery Life = 4000 hr's typical, 8000 hr's maximum.

The Flex 3000 is designed to take measurements where standard current sensors can't. Tight breaker panels, large buss bars, cable bundles, and irregular shaped conductors will no longer be a challenge. Since the Flex 3000 lends itself well to pre-shaping, it also eliminates the need to reach around live conductors.

Current Transformer Connections

For more information on connecting Current Transformers to loggers click here