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Honeywell CSNS300F-003 300 A Closed-Loop Current Sensor

HONEYWELL / CSNS CURRENT SENSING300 A SENSOR
NULL-BALANCE TRANSDUCER

CSNS300F-003

Honeywell CSNS300F-003 is a 300 A closed-loop null-balance current sensor from the CSNS Series for measuring AC, DC and impulse currents with fast response.

BEFORE INSTALLATIONConfirm the exact -003 drawing, conductor path, supply rails, output scaling, burden resistor and polarity before circuit replacement.
SELECTION CHECKVERIFY COMPLETE CONFIGURATION
Brand New OriginalFast DeliveryWorldwide Shipping
INQUIRE NOW
  • Worldwide delivery
  • Delivery from stock
  • In stock really means in stock
  • No account required
  • Shipped from the China
Product Specifications
Manufacturer Honeywell
Item number CSNS300F-003
Country of Origin USA
Lead Time 2-3 DAYS
After-Sales Support One Year Warranty
HS Code / Commodity code 903033
FAQ

Quotes are valid for 30 days from the day the quote is received unless stated otherwise at the time of quotation.

Yes,we offer one year warranty for all new products.

Yes. We worked with FEDEX/DHL/TNT/UPS/ allowing us to provide swift global delivery of parts to any corner of the world.

Normally 3-5 working days,some remote areas 5-7 days more.

Product information
01
CONTROL DOSSIER

CSNS300F-003 Measurement, Output and Installation Data

Official Honeywell technical data for the exact CSNS300F-003 configuration.

SENSOR IDENTITYUse the exact -003 drawing

Confirm aperture, supply rails, output ratio, pinout and conductor direction.

MEASUREMENT CHAINCalibrate the complete current path

Primary conductor orientation
Bipolar sensor supply
Burden resistor value
Acquisition range and scaling

CURRENT MEASUREMENT
SERIES SENSING RANGES±320 A and ±600 A configurations
RESPONSE TIME<0.5 µs
SERIES ACCURACY±0.5%
OUTPUT FORMCurrent output
VOLTAGE CONVERSIONExternal burden resistor
PRIMARY CONDUCTORPass-through measurement path
SECONDARY TURNS2000 turns, series reference
SUPPLY RAILS±12 to ±18 VDC, series reference
OPERATING TEMPERATURE-40 to 85°C, series reference
MOUNTINGPanel mounting
CONNECTION FAMILYFlying-lead F version
SIGNAL & INSTALLATION
PRODUCT DESCRIPTION300 A null-balance current sensor
FLUX CONDITIONCore flux regulated toward zero
TRANSFER RELATIONSHIPPrimary current divided by secondary turns
SIGNAL POLARITYDepends on conductor direction and pinout
BURDEN SELECTIONSized from output current and interface voltage
ISOLATION FUNCTIONGalvanic current-measurement path
FREQUENCY BEHAVIORSuitable for fast changing current waveforms
INSTALLATION DRAWINGUse model-specific Honeywell drawing
CONDUCTOR APERTUREVerify against -003 drawing
CONNECTOR PINOUTVerify against -003 drawing
CALIBRATIONSystem burden and acquisition path dependent
02
CONTROL DOSSIER

CSNS300F-003 Converts Primary Current Into a Control Signal

A selection-focused view of function, integration boundaries and practical application roles.

USE 01

Measure DC bus current

Monitor bidirectional direct current while preserving galvanic separation from the control circuit.

USE 02

Capture AC waveforms

Use the closed-loop response for power-conversion and drive-current measurements.

USE 03

Observe current impulses

Acquire fast transients where the sensor and downstream electronics meet the required bandwidth.

USE 04

Feed protection electronics

Scale the output through the burden network for current-limit or fault-detection circuitry.

USE 05

Support energy conversion control

Apply current feedback in inverter, power-supply or electrification control loops.

USE 06

Replace a panel-mounted transducer

Match aperture, mounting, pinout, supply rails, polarity and scaling before substitution.

03
CONTROL DOSSIER

Common buyer questions about CSNS300F-003

Practical purchasing guidance for clearer, more confident decisions.

BUYER CHECKLISTSend the installed configuration

Complete label and revision
Base and power module
Required interfaces
Automation Studio version

01BUYER QUESTION

What does the null-balance method do inside Honeywell CSNS300F-003?

The feedback system drives the magnetic flux in the core toward zero. The balancing secondary current becomes an image of the primary conductor current divided by the secondary-turn ratio.

02BUYER QUESTION

Can Honeywell CSNS300F-003 measure AC, DC and impulse current?

Yes. Honeywell lists AC, DC and impulse current as supported sensed-current types for the CSNS closed-loop family, with a response time below 0.5 microsecond.

03BUYER QUESTION

How is the output from Honeywell CSNS300F-003 converted into a voltage?

Pass the sensor's current output through a burden resistor selected for the required voltage span, sensor range and acquisition input. The resistor value and tolerance affect the final scale and accuracy.

04BUYER QUESTION

Which sensing range should be used when integrating Honeywell CSNS300F-003?

The exact -003 drawing and range document must be checked before design release. Honeywell lists 300 A rated CSNS variants and family sensing ranges of ±320 A or ±600 A, but the suffix controls the exact configuration.

05BUYER QUESTION

Can Honeywell CSNS300F-003 replace another 300 A current sensor without recalibration?

Not automatically. Compare aperture, supply rails, current range, output ratio, pinout, conductor direction, mounting and burden resistor, then recalibrate the downstream measurement chain.

06BUYER QUESTION

What files and circuit details are needed to quote Honeywell CSNS300F-003?

Send the full label, model drawing or existing pinout, primary conductor size and direction, supply rails, burden value, acquisition range, quantity, condition requirement and destination; use the Honeywell CSNS range guide for review.

04
CONTROL DOSSIER

Our Company History

From a four-person Xiamen team to an international industrial-automation sourcing partner.

COMPANY JOURNEYBuilt through steady growth

International sourcing experience
Expanded warehouse capability
Long-term customer partnerships

2005

The Beginning

Company was founded in Xiamen, Fujian, China, in 2005 with a team of only four people. At that time, we mainly served selected European and North American markets, supplying commonly requested industrial automation products from Siemens, Allen-Bradley and Bently Nevada. Although the business was still developing and we completed relatively few orders, this period helped us build essential product knowledge and international trade experience.

2017

A Period of Growth

By 2017, our team had grown to approximately 30 people, and we had established a warehouse for in-stock automation components. Our business expanded across Europe, North America and Southeast Asia, while our product range grew from popular models to scarce and discontinued industrial automation parts. As our product knowledge and service experience increased, we completed nearly 20 orders per month on average.

TODAY

Serving Customers Worldwide

Today, Company serves customers worldwide with a professional team of approximately 60 people. Our warehouse holds a broad selection of industrial automation components, including popular products, hard-to-find parts and discontinued models. We now complete more than 30 orders per month, with an average monthly transaction value of approximately USD 3 million. We have established long-term partnerships with nearly 30 customers from different countries and welcomed almost 40 international customers to visit our company.

2005 → TODAY

Since our company was founded, we have served every customer with sincerity and professionalism. Our prices may not always be the lowest, but we earn long-term trust through quality products, dependable after-sales support, honest condition reporting, timely communication and responsible delivery. Our goal is to build lasting partnerships rather than pursue one-off transactions.

05
CONTROL DOSSIER

Transaction Cases

Real sourcing decisions supported by careful review, direct communication and responsible follow-through.

CASE NOTESDecisions supported in practice

Replacement review
On-site product inspection
Repeat-order cooperation

FIELD REVIEW

Sincere Cooperation, Long-Term Trust

Customers receive clear product checks, documented communication and practical support before a purchasing decision is made.

Customers reviewing industrial automation components during an on-site product inspection
On-site product evaluation following a client visit to the company
RUSSIA

Replacement review

A Russian customer urgently needed a replacement for a discontinued automation component. After reviewing the product label, technical parameters and application details, our engineers recommended a compatible alternative and provided photos and test videos before shipment. The alternative performed well, strengthening the customer’s confidence and leading to multiple repeat orders.

INDIA

On-site inspection

An Indian customer still had doubts after initial online communication, so they visited our company for a face-to-face meeting and product inspection. The visit increased the customer’s trust and led to a successful first order. Over the following years, we completed multiple orders and established a stable, long-term partnership.

VENEZUELA

Service earned trust

A Venezuelan customer compared products and services from several online suppliers for nearly three weeks. Our sincere communication, professional service and reliable product quality earned the customer’s trust. After the product performed without problems, the customer shared positive feedback and placed multiple follow-up orders.

06
CONTROL DOSSIER

Other automation models

More industrial automation references to support diverse sourcing requirements.

CATALOGUE INDEX 01
01EY-IO572F001
02KFD2-UT2-1 191884
03MB-6279
04ZB-S - CEAG COOPER 40071347890
05iMC2S-LV-D-1RJ45-1SFP
06PR 4114 4501
07XJM03-5942
08Nov-54
09DCJ4501-01PLF PSU-350-AC
10QSNE-4A-D
11FG-20i 1631005-003
12DIS DC 6120
13EPX-410D
CATALOGUE INDEX 02
14WRT-820A 854.125-862.000
15PP056TB1-113
16ZE301
17IR425 / ir425-D4-2
18TMT112-AAAAA
19MES120 59715
20KHA6-SR2-EX2.W 33804S
21XM30 X13651469010
22DSU110F001
23CP-132UL-I/DB9M
24Duc001
25EXP-1048
26C3COM-3
CATALOGUE INDEX 03
27ET1111-F-MT
28SCM800E
29FF20-S33*B/M
30SG200-50
31B501-IV
32NIAI04
33CAN-5902
34AC2411
35C0-E1-11AAR
36DIN-INT-00-08
37FRMC2000
38RM-LP55
39GV-U6E
DIRECT CONTACT

Start your CSNS300F-003 inquiry

Send the nameplate, rack layout and delivery destination for a focused review.

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