Product Description
The Schmersal T4S 255-20Z is a Position switch of the 255 series for movable guards on machinery and plant. It keeps the guard door locked until the hazardous condition has ended and signals position and interlocking to the safety controller. The manufacturer's article number is 101174918.
Important note
Switch with 2 NO contacts are not for security tasks
Technical data
Contacts and connection (3)
| Switching element |
2 NO contact |
| Number of auxiliary contacts |
2 |
| Switching principle |
Slow action |
Electrical data (3)
| Rated insulation voltage U<sub>i</sub> |
500 V |
| Note Bounce duration |
Bounce duration in accordance with actuating speed |
| Note (Switchover time) |
Switchover time in accordance with actuating speed |
Standards and approvals (3)
| Certificates |
CCC |
| eCl@ss number, version 12.0 |
27-27-06-01 |
| ETIM number, version 7.0 |
EC000030 |
Delivery time and availability
Many items of this series are available from stock; special versions are built to order by the manufacturer and take correspondingly longer. The delivery time shown in the shop applies to stocked goods and is a guide value. For urgent orders please ask us for the actual delivery time in advance – we will also check whether express shipping is possible.
Your advantage when buying from us
- Authorised Schmersal dealer — genuine products with full manufacturer warranty
- Technical advice from specialists in machine safety
- All safety-related characteristic data documented for your risk assessment
- Matching actuators and accessories from a single source
- A named contact instead of an anonymous ticket system
- Shipping from Germany, delivery throughout Europe
