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CCT 41.4 I - Allstromwandler AC/DC

primary current

Measuring range	0…500 A DC / AC Ieff, variant-dependent! (Rated current ranges set to standard values acc. to IEC)
Frequency range	0…100 kHz, any signal waveforms
Current output for AC input signal:	AC: 0…20 mA Ieff, (± 28,2843 mA IPeak)
Current output for DC input signal	DC: 0…± 20 mA
Max. burden resistance at current output	RB ≤ 300 Ω (UH = 24 V DC)
Output signal limitation in case of overload	< 25 mA
Accuracy	± 0,5 %
Max. operating voltage Um	0,72 kV, Ueff
Insulation test voltage	6,4 kV, Ueff, 50 Hz, 5 sec., Primary conductor against measuring output/housing
Auxiliary voltage	± 12 V DC, ± 15%, < 70 mA, external protection via fine fuse 100 mA / 250 V, fast!
Step response time (90 % IPN, di/dt = 100 A / μs)	≤ 1 μs (typ. 150 ns)
Signal rise rate di/dt	< 100 A / μs
Insulation material class	E
Operating altitude	≤ 2000 m (DIN EN 61010-1)
Max. temperature of the primary conductor	100° C
Humidity	0…95% rel. humidity, no condensation!

Product information

Current transformer for measuring both direct and alternating currents

Applied technical standards:

DIN EN 50178, 1997
DIN EN 61010-1, 2002
VDE 0160

Electrical connections:

UH + UH - 0 (Ground) IA
Spring-loaded terminal
Connection cross-sections: 0,08…2,5 mm²

Functions of the CCT 41.4 I:

The magnetic field surrounding a current-carrying conductor is detected by a measuring core enclosing the conductor. The magnetic flux induced in the measuring core, which is directly proportional to the current in the primary conductor, is detected by means of a semiconductor component. Integrated control electronics in the device convert the signal supplied by the semiconductor into an output current signal directly proportional to the time profile of the measured variable.
The inductive, contactless detection of the measured variable provides a galvanically isolated output signal.
The electrical contacting of the secondary circuit of the current transformer is carried out via a 4-pole spring-loaded terminal. This terminal is suitable for connecting flexible stranded wires up to 2,5 mm².
A DC auxiliary power supply of ± 12 V is required to supply the control electronics. The auxiliary voltage inputs must be protected by a 100 mA / 250 V / F fine fuse.

Advantages and benefits of the CCT 41.4 I:

Measurement of both direct and alternating currents possible with only one transformer.
Wide operating frequency range from 0 Hz (DC)…100 kHz (AC).
High electrical safety due to galvanically isolated detection of the measured variable.
Low power requirement (≤ 2,5 VA)
Simple and safe electrical wiring using spring-loaded terminal technology.
Direct mounting on busbars via fastening screws integrated in the device.
Mounting on 35mm DIN rails possible using optional snap-on mounting.
High climatic and mechanical resistance due to PU encapsulation of all electrical components.

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Properties

Measuring range	0…500 A DC / AC Ieff, variant-dependent! (Rated current ranges set to standard values acc. to IEC)
Frequency range	0…100 kHz, any signal waveforms
Current output for AC input signal:	AC: 0…20 mA Ieff, (± 28,2843 mA IPeak)
Current output for DC input signal	DC: 0…± 20 mA
Max. burden resistance at current output	RB ≤ 300 Ω (UH = 24 V DC)
Output signal limitation in case of overload	< 25 mA
Accuracy	± 0,5 %
Max. operating voltage Um	0,72 kV, Ueff
Insulation test voltage	6,4 kV, Ueff, 50 Hz, 5 sec., Primary conductor against measuring output/housing
Auxiliary voltage	± 12 V DC, ± 15%, < 70 mA, external protection via fine fuse 100 mA / 250 V, fast!
Step response time (90 % IPN, di/dt = 100 A / μs)	≤ 1 μs (typ. 150 ns)
Signal rise rate di/dt	< 100 A / μs
Insulation material class	E
Operating altitude	≤ 2000 m (DIN EN 61010-1)
Max. temperature of the primary conductor	100° C
Humidity	0…95% rel. humidity, no condensation!