Question
What is Y/Za/Zb?
Answer
Illustration | Mark | Contact type | Applicable models | Remarks |
![]() | ![]() | Y | A165E A22E | Two contacts switched together |
![]() | ![]() | Za | D4B-N (snap action) | Four contacts switched together: One movable contact blade opens and closes. This type cannot use power with different voltages or polarities. |
![]() | ![]() | Zb | D4B-N (slow action) D4BS D4BL D4N D4NS D4N-R D4NH D4NL D4GS-N D4F D4JL D4GL | Four contacts switched together: The two movable contact blades are insulated from each other. This type can use power with different voltages or polarities. ![]() Terminals 11 and 12 in the illustration are the contacts forcibly opened. |
For Safety Light Curtain Robust & Basic New Lineup. Understanding the Indicators at a Glance.
Compact (104.5 mm), lightweight (1.3 kg) and easy-to-install Safety Laser Scanner
Supports ISO 13849-1 (PLe/Safety Category 4). Can be used on higher risk level applications by connecting to Safety Controllers.