cn

IEC 61000-4-9 specifies the immunity test in which an impulse magnetic field is applied to equipment. The field is produced by the current of a lightning stroke flowing in a conductor or in the structure of a building, and it is characterised by a standard waveform with a rise time of 1.2 microseconds and a time to half value of 8 microseconds, the same waveform as the open-circuit voltage of the surge test. It is encountered in installations with external lightning protection, in buildings with structural steelwork acting as a natural down conductor, and near overhead lines and masts. The standard defines the field generating coil, which in practice is most often a large rectangular coil capable of meeting the physical dimensions of the equipment, and specifies the field strength levels used, up to 1000 A/m for the most severe class. It explains the orientation of the equipment with respect to the three field axes, the number of impulses and the interval between them, and the method of measuring the field. The test is normally performed together with the power frequency and damped oscillatory magnetic field tests to cover the whole range of magnetic phenomena.

IEC 61000-4-9 standard satisfiable test: Multifunction Immunity Tester 、 Surge Immunity 、 Magnetic Field Immunity 。
Download Table
If you need to send an email, please fill in your email address.
Inquiry function description

 •  Using the product inquiry function can help you quickly learn about the product's price and other related information.

 •  You can either inquire about a single product directly, or select multiple products to add to the inquiry bar and inquire about them together.

 •  How to make an inquiry

1. How to add a product to the inquiry bar
1) Select from any product list
2) Select from any product detail page
2. How to access the inquiry bar
1) Click the floating "Inquiry" button on the right side of any page
2) Then fill in your information on the inquiry page
3. How to inquire directly
1) Go to any product detail page, click "Inquiry Now", and then leave your information in the pop‑up window
OK
Comparison Function Description

1.  Using the product comparison function can help you find the target product you need for selection more quickly and easily.

2.  You can add up to 5 products for comparison. Product models and parameters may vary across different series. It is recommended to compare products within the same series.

3.  How to use the comparison bar.

1. How to add a product to the comparison bar.
1) Select from any product list
2) Select from any product detail page
2. How to perform a comparison.
1) Click the floating "Compare" button on the right side of any page.
2) After confirming the products you have selected for comparison, click "Start Comparison" to view the comparison results.
OK
Manual selection
Please fill in the following information, and our company will contact you as soon as possible
  • Search Engine
  • Industry Exhibition / Trade Show
  • Social Media
  • Online Advertisement
  • Industry Publication
  • Business Partner / Distributor
  • Colleague or Industry Contact
  • Existing Customer
  • Other
I agree to the  Privacy Policy.

If you have any questions, feel free to Contact Us!

Quote List0
Compare0
Selection
Top
Compary
Add up to 5 product comparisons for each type.
Only compare the currently expanded module.