Frequently Asked Questions
Compatibility
Is there any change in the specifications compared to the existing product?
Ambient temperature under standard operating conditions has increased from-5°C to-10°C.
The electrical and mechanical life of products marketed in October 2023 is equivalent to that of existing products.
Is there a change in the screw size or terminal number compared to the existing product?
Please refer to the outline diagrams of some models.
Is mounting compatibility with existing product?
Designed with maximum compatibility, however, the body is compact and some specifications may differ.
For models without mounting compatibility, the existing mounting holes can be used without changing the mounting holes by using the adapter plate.
When configuring an Magnetic Starter, is it possible to combine a existing product with a new product?
It is not possible to use a combination of existing and new products.
Can you arrange for either the motor capacity or the rated current value?
Use the thermal rating (A) instead of specifying the main circuit voltage + motor rating (kW).
Product specifications
Numbers in the format (SC09, etc.) indicate what number.
The rated current for AC380-440V AC-3 class in IEC standard is indicated in the format.
What information is provided by QR code on the front of the main unit?
You can browse and download instruction manuals, external drawings, and specifications.
Are there any changes in compliance with the standards and environmental regulations of each country?
As with existing products, this product complies with major standards.
Can the close mounting be used?
The product can be mounted close to each other.
Is a tool required to remove the magnetic contactor from DIN rail?
The new product does not require tools such as screwdrivers for removal from DIN rail, making it easier to remove.
Can the terminal cover be removed?
The terminal cover can be detached and remounted by the user.
Has the power consumption of the coil been reduced?
Maximum 73% reduction compared to existing products (some models are equivalent to existing products).
Refer to the specifications for details.
Check whether the coil of DC operation type has polarity.
The DC operation type has a polarity (A1:+, A2:-).
What is the merit of the low power consumption type of the DC operation type coil?
The power dissipation of the inductor is low and direct drive is available from a typical PLC.
This eliminates the need for a control relay to drive the magnetic contactor, saving space and reducing work man-hours.
Is it possible to check the sequence by operating the operation indicator manually when the main power is OFF?
It is not recommended to touch the operation display unit from the viewpoint of safety.
Check the operation and continuity by electrical operation.
option
Is it possible to install the thermal relay independently?
The thermal relay can be installed independently by using the thermal relay independent installation unit together.
Are terminal covers available as maintenance parts?
Possible.
Please prepare the following formats.
Main/auxiliary terminals for contactors: SZ3T09X, coiled terminals: SZ3TC09X
Main load-side terminal for thermal application: SZ3T18XT, Auxiliary terminal: SZ3TA01T