Datasheet -- CSNF661 Page 1 of 4 CSNF661 CSN Series closed loop current sensor, measures AC, DC or impulse current, 100 A nominal, ± 150 amp range, offset pin, 1000 turn Representative photograph, actual product appearance may vary. Due to regional agency approval requirements, some products may not be available in your area. Please contact your regional Honeywell office regarding your product of choice. Features Current sensing up to 1200 amps Measures ac, dc and impulse currents Competitive cost/performance ratio Rapid response High overload capability High level of electrical isolation between primary and secondary circuits Industrial operating temperature range Small size and weight Typical Applications Variable speed drives Overcurrent protection Ground fault detectors Current feedback control systems Robotics UPS and telecommunication power supplies Welding power supplies Automotive - Battery management systems Wattmeters Description The CSN Series of closed loop current sensors are based on the principles of the Magnetoresistive or Hall effects, and the null balance or zero magnetic flux method (feedback system). The magnetic flux in the sensor core is constantly controlled at zero. The amount of current required to balance zero flux is the measure of the primary current flowing through the conductor, multiplied by the ratio of the primary to secondary windings. This closed loop current is the output from the device and presents an image of the primary current reduced by the number of secondary turns at any time. This current can be expressed as a voltage by passing it through a resistor. http://catalog.sensing.honeywell.com/printfriendly.asp?FAM=current&PN=CSNF661 31/08/2006 Datasheet -- CSNF661 Page 2 of 4 CSNF661 CSN Series closed loop current sensor, measures AC, DC or impulse current, 100 A nominal, ± 150 amp range, offset pin, 1000 turn Product Specifications Sensor Type Closed Loop Linear Sensed Current Type ac or dc Sensed Current Range ± 150 A Package Style Thru Hole PCB Mount Output Type Current Maximum Continuous Current ± 150 A Supply Current ± 10 mA + output Supply Voltage ± 12.0 Vdc to ± 15.0 Vdc Offset Current < ± 0.2 mA Offset Current Drift < ± 0.5 mA Coil Resistance @ 70 °C 30 Ohm Response Time < 0.5 µs Coil Turns 1000 Output Nominal 100 mA Operating Temperature Range -40 °C to 85 °C [-40 °F to 185 °F] Storage Temperature Range -40 °C to 90 °C [-40 °F to 194 °F] Minimum Measuring Resistance 30 Ohm Maximum Measuring Resistance 80 Ohm Housing Material Glass-filled PBT (UL94-V0) Mounting PCB on 3 pins Pinout Style Offset Accuracy ± 0.5 % Availability Global Comment Offset pin version of CSNF161. UNSPSC Code 411121 UNSPSC Commodity 411121 Transducers Series Name CSN Series http://catalog.sensing.honeywell.com/printfriendly.asp?FAM=current&PN=CSNF661 31/08/2006 Datasheet -- CSNF661 Page 3 of 4 CSNF661 CSN Series closed loop current sensor, measures AC, DC or impulse current, 100 A nominal, ± 150 amp range, offset pin, 1000 turn http://catalog.sensing.honeywell.com/printfriendly.asp?FAM=current&PN=CSNF661 31/08/2006 Datasheet -- CSNF661 Page 4 of 4 CSNF661 CSN Series closed loop current sensor, measures AC, DC or impulse current, 100 A nominal, ± 150 amp range, offset pin, 1000 turn PERSONAL INJURY DO NOT USE these products as safety or emergency stop devices, or in any other application where failure of the product could result in personal injury. Failure to comply with these instructions could result in death or serious injury. MISUSE OF DOCUMENTATION The information presented in this product sheet (or catalog) is for reference only. DO NOT USE this document as product installation information. Complete installation, operation and maintenance information is provided in the instructions supplied with each product. Failure to comply with these instructions could result in death or serious injury. © Copyright Honeywell Inc.1998-2006 All rights reserved. http://catalog.sensing.honeywell.com/printfriendly.asp?FAM=current&PN=CSNF661 31/08/2006