For the electronic measurement of current: DC, AC, pulsed..., with galvanic separation between the primary and the secondary circuit.
Features
●  Closed loop (compensated) current transducer ● Voltage output ● Single supply voltage ● PCB mounting.
Advantages
● High accuracy ●   Very low offset drift over temperature ● Wide aperture ● High overload capability ● High insulation capability ● Reference pin with two modes, Ref In and Ref Out ● Degauss and test functions.
Applications
● Residual current measurement ● Leakage current measurement in transformerless PV inverters ● First human contact protection of PV arrays ● Failure detection in power sources ● Symmetrical fault detection (e.g. after motor inverter) ● Leakage current detection in stacked DC sources ● Single phase or three phase nominal current measurement up to ±30 A per wire (DC or AC).
Standards
●  EN 50178: 1997 ● IEC 61010-1: 2010 ● UL 508: 2010.
Application Domain
● Industrial ● Suitable to fulfil VDE 0126-1-1 and UL 1741.
Safety If the device is used in a way that is not specified by the manufacturer, the protection provided by the device may be compromised. Always inspect the electronics unit and connecting cable before using this product and do not use it if damaged. Mounting assembly shall guarantee the maximum primary conductor temperature, fulfill clearance and creepage distance, minimize electric and magnetic coupling, and unless otherwise specified can be mounted in any orientation. Caution, risk of electrical shock This transducer must be used in limited-energy secondary circuits SELV according to IEC 61010-1, in electric/electronic equipment with respect to applicable standards and safety requirements in accordance with the manufacturer's operating specifications. Use caution during installation and use of this product; certain parts of the module can carry hazardous voltages and high currents (e.g. power supply, primary conductor). Ignoring this warning can lead to injury and or/or cause serious damage. De-energize all circuits and hazardous live parts before installing the product. All installations, maintenance, servicing operations and use must be carried out by trained and qualified personnel practicing applicable safety precautions. This transducer is a build-in device, whose hazardous live parts must be inaccessible after installation. This transducer must be mounted in a suitable end-enclosure. Besides make sure to have a distance of minimum 30 mm between the primary terminals of the transducer and other neighboring components. Main supply must be able to be disconnected. Always inspect the flexible probe for damage before using this product. Never connect or disconnect the external power supply while the primary circuit is connected to live parts. Never connect the output to any equipment with a common mode voltage to earth greater than 30 V. Always wear protective clothing and gloves if hazardous live parts are present in the installation where the measurement is carried out. This transducer is a built-in device, not intended to be cleaned with any product. Nevertheless if the user must implement cleaning or washing process, validation of the cleaning program has to be done by himself. When defining soldering process, please use no cleaning process only. ESD susceptibility The product is susceptible to be damaged from an ESD event and the personnel should be grounded when handling it. Do not dispose of this product as unsorted municipal waste. Contact a qualified recycler for disposal. Underwriters Laboratory Inc. recognized component

Absolute maximum ratings

Stresses above these ratings may cause permanent damage. Exposure to absolute maximum ratings for extended periods may degrade reliability.
UL 508: Ratings and assumptions of certification
File # E189713 Volume: 2 Section: 3 Standards CSA C22.2 NO. 14-10 INDUSTRIAL CONTROL EQUIPMENT - Edition 11 - Revision Date 2011/08/01 . UL 508 STANDARD FOR INDUSTRIAL CONTROL EQUIPMENT - Edition 17 - Revision Date 2010/04/15 . Ratings
* Enviromental: For use in Pollution degree 2.
Conditions of acceptability
When installed in the end-use equipment, consideration shall be given to the following: 1 - A suitable enclosure shall be provided in the end-use application. 2 - The insulation between the primary and the secondary sensing circuits were evaluated with 4250 V AC for CTSR 0.6-TP/ SP and 2200 V AC for CTSR 0.6-P in dielectric voltage withstand test. 5 - CTSR series is intended to be mounted on the printed wiring board of the end-use equipment. 7 - The uninsulated live parts of primary feeder and secondary circuit clearance spacing of Model CTSR XX-P series shall maintain at least 5.5 mm apart. 8 - Primary feeder of the devices shall be connected after an overvoltage device or system which has been evaluated by the Standard for Transient Voltage Surge Suppressors, UL 1449.
Marking
Only those products bearing the UL or UR Mark should be considered to be Listed or Recognized and covered under UL's Follow-Up Service. Always look for the Mark on the product.

Insulation coordination

Environmental and mechanical characteristics

Electrical data CTSR 0.3-P
At T , = 25 °C, U ρ = +5 V, output voltage referred to U , , , unless otherwise noted (see Min., Max., typical definition paragraph) in
²) Only with a primary nominal residual current, see paragraph "Primary nominal residual current and primary nominal current". ³)Total error @ T λ and I ρ : ε ω (T λ ) = (ε  ² + (TCS × 100 × (T λ − 25))² + (TCU o ∈ × 2.5 × (T λ − 25)/S × 100/I ρ γ )¹². Page 5/13 CTSR 0.3-P, CTSR 0.6-P Page 6/13

Electrical data CTSR 0.6-P
At T x = 25 °C, U c = +5 V, output voltage referred to U ce,  unless otherwise noted (see Min., Max., typical definition paragraph) in
²² Only with a primary nominal residual current, see paragraph "Primary nominal residual current and primary nominal current". 3) Total error @ T λ and I ρ : ε xx (T λ ) = (ε 2 + (TCS × 100 × (T λ − 25))2 + (TCU o ∈ × 2.5 × (T λ − 25)/S N × 100/I λ )2 . Page 7/13
Figure 9: Typical step response Figure 6: Frequency response Figure 10: Typical step response Page 8/13

Definition of typical, minimum and maximum values
Minimum and maximum values for specified limiting and safety conditions have to be understood as such as well as values shown in “typical” graphs. On the other hand, measured values are part of a statistical distribution that can be specified by an interval with upper and lower limits and a probability for measured values to lie within this interval. Unless otherwise stated (e.g. "100 % tested"), the LEM definition for such intervals designated with "min" and "max" is that the probability for values of samples to lie in this interval is 99.73 %. For a normal (Gaussian) distribution, this corresponds to an interval between −3 sigma and +3 sigma. If “typical” values are not obviously mean or average values, those values are defined to delimit intervals with a probability of 68.27 %, corresponding to an interval between -sigma and +sigma for a normal distribution. Typical, maximal and minimal values are determined during the initial characterization of a product.

Filtering, decoupling CTSR transducer
Supply voltage U  (5 V):
The CTSR transducers have internal decoupling capacitors, but in the case of a power supply track on the application PCB having a high impedance, it is advised to provide local decoupling, 100 nF or more, located close to the transducer.
Reference U ref
Ripple present on the U res pin can be filtered with a low value of capacitance because of the internal 499 ohm series resistance. The CTSR transducers have an internal capacitor of 22 nF between U wr pin and Gnd pin and the maximum filter capacitance value which could be added is 1 μF. Adding a larger decoupling capacitor will increase the activation delay of degauss.
Output U out
The CTSR transducers have an internal low pass filter 470 ohm/22 nF; if a decoupling capacitor is added on U out pin, the bandwidth and the response time will be affected. In case of short circuit, the transducer CTSR can source or sink up to a maximum of 10 mA on its output U out
Using an external reference voltage
If the U,,, pin of the transducer is not used it could be either left unconnected or filtered according to the previous paragraph "Reference U " The U ref pin has two modes Ref out and Ref In: In the Ref out mode the 2.5 V internal precision reference is used by the transducer as the reference point for bipolar . measurements; this internal reference is connected to the U res pin of the transducer through a 499 ohms resistor. It tolerates sink or source currents up to ±5 mA, but the 499 ohms resistor prevents this current to exceed these limits. . In the Ref In mode, an external reference voltage is connected to the U rg, pin; this voltage is specified in the range 2.3 to 4 V and is directly used by the transducer as the reference point for measurements. The external reference voltage U r , must be able: o  either to source a typical current of U m − 2.5 , the maximum value will be 3 mA when U ω = 4 V . o  or to sink a typical current of 2.5 – U , n , the maximum value will be 0.4 mA when U , , = 2.3 V. 499 The following graphs show how the measuring range of the transducer depends on the external reference voltage value U ref (U c = 5 V). Upper limit: I = 500 mA Upper limit: I p = −250*U res + 1156.25 Lower limit: I p = −250*U p + 93.75 Lower limit: I p = −500 mA (U ref = 2.3 ... 2.625 V) ( U res = 2.625 ... 4 V) (U res = 2.3 ... 2.375 V) (U ref = 2.375 ... 4 V) Upper limit: I = 850 mA (U ref = 2.3 ... 2.52 V) Upper limit: I p = −403.88*U pg + 1867.93  (U pg = 2.52 ... 4 V) (U re = 2.3 ... 2.48 V) Lower limit: / p = −403.88*U ∞ + 151.45 (U rot = 2.48 ... 4 V) Lower limit: I p = −850 mA

Primary nominal residual current and primary nominal current
The primary nominal residual current is the sum of the instantaneous values of all currents flowing through the aperture of the transducer. The primary nominal current is the current flowing through any conductor placed into the aperture of the transducer. The presence of a primary nominal current DC or AC leads to an additional uncertainty. For example, with a primary nominal current of 30 A the uncertainty referred to primary is typical 4.3 mA.
CTSR transducer in Test mode
When the U res pin is forced at a low level voltage between 0 and 1 V and is maintained at this level, the output voltage U on of CTSR transducer exhibits a fixed value (see specification) as if it measured a primary test current. The activation time of test mode is min 30 ms. The CTSR transducer can be maintained in test mode as long as needed for checking that it is fully operating.
CTSR transducer in Degauss mode
The CTSR transducers go in degauss mode automatically at each power on or on demand by using the U ,,, pin. At power on: A degauss is automatically generated at each power on of the CTSR transducer; during degaussing the output voltage Uon is maintained at 0.3 V typ. (max 0.5 V). After c.a. 110 ms, the output voltage U or is released and takes the normal operation level in relation with the measured primary current. Using U , , pin: When the pin U res is released from the Low level voltage defined in the Test mode above, there is a rising edge on U res which generates an automatic degauss. The activation of degauss takes typically 40 μs after releasing U cr pin, then degauss lasts typically 110 ms.
Insulation around the CTSR transducer housing
Due to the joint between the case and the cover of the CTSR transducer, there is some insulation distance to respect when primary conductors pass around the CTSR housing. The figure below shows the joint and the apertures where the clearance between the secondary part inside the CTSR transducer and the surface of the housing is 3 mm (label E).
PCB footprint CTSR 0.3-P, CTSR 0.6-P
Assembly on PCB
● Recommended PCB hole diameter ●   Maximum PCB thickness ●   Wave soldering profile No clean process only 1.2 mm for secondary pin 2 mm for retention pin 2.4 mm maximum 260 °C, 10 s The two retention pins inserted into the case of the transducer are electrically isolated by the housing. Because one of them is close to the secondary connector, it is recommended to connect both to the secondary side GND or + U c. Consequently any primary conductor must be placed in the PCB at the requested isolation distance regarding these secondary sides (see also paragraph "Insulation around the CTSR transducer housing").
CTSR 0.3-P, CTSR 0.6-P Dimensions (in mm, general tolerance ±0.3 mm) Page 13/13