ZETTLER XZM-CT50A01 User manual

XZM-CT50A01
ZETTLER
www.ZETTLER-group.com page 1 of 3 2023-03-30
PRECISION CURRENT SENSE TRANSFORMER
ELECTRICAL DATA
FEATURES
• Measuring current transformer acc. IEC 61869-1, IEC 61869-2
• Designed for IEC 61851-1 charging applications
• Ideal for current / power monitoring and metering applications
• Current rating 50 Arms
• Primary to secondary insulation according OVC III / PD 3
• Dielectric strength 4 kV AC
• UL approved class B insulation system
• TÜV type approved
Primary current
rating
overload withstand
impulse current withstand
50 A
70 A (1min.)
2 kA (half wave)
Approved ratings
primary current
extended current
secondary current
short time thermal current
system voltage
(TÜV)
50 A
120 %
50 mA
1 kA
≤ 800 V
Working frequency 50/60 Hz (sin.)
Turns ratio NS:NP1000:1
Accuracy
classification
magnitude error
phase error
(at RL=50Ω)
Class 0.2 (acc. IEC 61869-2)
≤ 0.5% (< 0.1% typ. @ 0.5 - 50 A)
≤ 1° (< 0.3° typ. @ 0.5 - 50 A)
Secondary output
transformation ratio
max. voltage
burden resistor RL
60 mV/A (typ. Ta=23°C, RL=50Ω, f=50Hz)
3.0 V
50 Ω (recommended)
Windings
PRI DC resistance
SEC DC resistance
< 0.2 mΩ (typ.)
≤ 60 Ω (< 50 Ω typ.)
Dielectric strength
PRI to SEC (at sea level, 1mA, 50/60Hz, 1sec.) 4 kV AC
Insulation
PRI to SEC (acc. IEC60664-1) Reinforced (300 VAC, OVC III, PD 3)
Isolation spacing
clearance/creepage
solid insulation (dti)
(Primary to Secondary)
≥ 11.5 mm
1.0 mm
Temperature range
operating / storage -40°C (-40°F) to 85°C (185°F)
Vibration resistance 0.062" (1.5 mm) DA at 10–55 Hz
Shock resistance 10 g
Enclosure
material group
flammability
IIIa
UL94 V-0
Terminals Tinned copper alloy
Soldering
preheating
soldering
(referring IEC 61760-1 wave soldering)
120°C (248°F) / ≤ 120 s
260 ±5°C (500 ±9°F) / ≤ 10 s
Cleaning
max. solvent temp.
max. immersion time
80°C (176°F)
30 seconds
Dimensions
length (max.)
width (max.)
height (max.)
23.0 mm (0.906”)
23.0 mm (0.906”)
20.0 mm (0.787”)
Weight 23 grams (approx.)
Compliance RoHS, REACH
Agency approvals TÜV: R 50576118
Electrical insulation system Class B
Packing unit in pcs 60 per plastic tray / 420 per carton box
GENERAL DATA
ORDERING DATA
XZM-CT50A01 
Option
nil: standard version
(xxx): special version
WIRING DIAGRAM
Burden resistor RL and meter not included and shown for reference only.
Dots indicate winding directions.
2
1 3
5
PRIMARY SECONDARY V
RL

XZM-CT50A01
ZETTLER
www.ZETTLER-group.com page 2 of 3 2023-03-30
MECHANICAL DATA
Dimensions in mm. Pin dimensions for reference only and given without tin coating.
PC BOARD LAYOUT
Layout recommendation. Dimensions in mm.
Viewed towards terminals.
CAD data in attachment of the datasheet.
TYPICAL CHARACTERISTICS
0
010 20 30 40 50 60
0.05
0.1
0.15
0.2
Primary Current IPRI [Arms]
Magnitude Error E [%]
+ 85°C
+ 70°C
+ 25°C
- 40°C
Magnitude error at RL = 50Ω, IDC = 0
0
010 20 30 40 50 60
0.1
0.2
0.3
Primary Current IPRI [Arms]
Phase Error θ [°]
+ 85°C
+ 70°C
+ 25°C
- 40°C
Phase error at RL = 50Ω, IDC = 0
110
SEC excitation current IE [µA]
SEC excitation voltage VE [V]
Excitation graph
100
0.01
0.1
1
10
NOTES
1. All values at reference temperature of 23°C (73°F) unless stated
otherwise.
2. Do not leave the secondary winding open circuited when the primary
winding is energized. This may damage the secondary winding and
leads to excessive core losses.
3. For automated dual wave soldering process we recommend preheating
with 120°C (248°F) for max. 120 seconds and a soldering temperature
of 260 ±5°C (500 ±9°F) for max. 10 seconds soldering time (max. 5
seconds per wave). For manual soldering we recommend 350°C
(662°F) max. temperature for max. 5 seconds. During the soldering
process, no force may be exerted on the terminals.
4. During storage, transport and usage, ensure a dry, non-condensing and
non-icing environment.
5. Specifications subject to change without notice.

XZM-CT50A01
ZETTLER
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DISCLAIMER
The specification provides an overview of the most significant product features. Any individual applications and operating conditions are not taken into
consideration. It is recommended to test the product under application conditions. Responsibility for the application remains with the customer. Proper
operation and service life cannot be guaranteed if the part is operated outside the specified limits.
ZETTLER GROUP
Building on a foundation of more than a century of expertise in German precision engineering, ZETTLER Group is a world-class enterprise, engaged in the
design, manufacturing, sales and distribution of electronic components. Our industry leadership is based on a unique combination of engineering
competence and global scale.
For more information on other ZETTLER Group companies, please visit zettler-group.com. For support on this product or other ZETTLER relays, please
visit one of the group sites below.
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