点击图片查看原图 CAS25-NP,电流互感器
Technical data
Output Type: Instantaneous
Technology: Fluxgate
Measurement: Current
Primary Nominal Value: 25 A
Accuracy: 0.8 %
Mounting: -
Measuring Range: 85 A
Supply Voltage: 5 - 5
Supply voltage type: Unipolar
Secondary Nominal Signal: 0.625 V
CAS:
Compact Fluxgate based current transducers single supplied (+5V)
3 primary pins
CASR:
Compact Fluxgate based current transducers single supplied (+5V) with reference access
3 primary pins
CKSR:
Compact Fluxgate based current transducers single supplied (+5V) with reference access
4 primary pins
Higher creepage and clearance distances
Main characteristics:
Low offset and gain drift
Measuring range up to 3 x IPN
Attractive price
12 multi-range models ( 4 models for each type)
PCB mounting
5 years warranty
Small current measurements from 1.5 to 50 ARMS nominal (6A, 15A, 25A and 50A models)
Compact design (30% smaller than LTS - height)
Only 2.93 cm2 as PCB mounting area is needed to support the 9g of these transducers
High accuracy at +85°C:
CAS: 2.5 to 3% of IPN
CASR & CKSR: 1.2 to 1.8% of IPN
Features:
DC, AC and pulse currents measurements with galvanic isolation
Single supply 0, +5 V
Isolation test voltage: up to 4.3KVRMS / 50 Hz / 1 min
Fluxgate technology
Operating temperature range: -40°C to +85°C
Voltage output
Bandwidth DC to 300 KHz (+/- 3dB), 200KHz (+/- 1dB)
Fast response time <0.3µs
CASR & CKSR: Reference access on additional pin
CKSR: Different primary footprint with 4 pins for higher creepage and clearance distances (8.2 mm) for higher insulation
Standard compliance:
EN 50178 for industrial applications such as:
Home appliances
Solar inverters
Servo drives
Variable speed drives
UPS
SMPS
Forklift trucks
Air-conditioners
Current monitoring
Welding applications
UL 508 (UR marking)
Using UL94-VO recognized materials
European Directive EMC 89 / 336 / EEC: CE marking
Low voltage directive 72 / 23 / EEC
IEC 61010-1 safety
Remarks:
Each model is multi-range according to primary connection configuration
Bipolar currents measurements when single supplied 0/+5V
These transducers can directly be connected to the 5V input of µ-controllers and instrumentation cards
CASR & CKSR models have an additional pin at the output for more flexibility in applications. This pin provides access to the internal voltage reference which can then be fed to the reference of an A/D converter (Analog Digital) This extra pin can also receive the internal reference (from 0 to 4 V) of the DSP (Digital Signal Processor) or A/D converters commonly used in Power Electronics, allowing cancellation of the reference temperature drift
Low influence in common mode
