Enabling Switch ZA3
Specially designed for installation on input devices
B-COMMAND Enabling Switch ZA3
- 3-stage switching (Off-On-Off)
- Ideal as enabling switch on input devices
- redundant contacts comply with safety category 4
- Protection degree IP65 front
- operating temperature -25°C…+60°C
- 2 normally open contacts
3-Stage Enabling Switch Series ZA2
The B-COMMAND enabling switch ZA3 is a 3-stage (off/on/off) enabling switch which is ideal for installation on input devices. The enabling switch ZA3 has a mounting diameter of Ø16mm. It is mounted by means of a locknut, which also protects against twisting.
The 2 working contacts are change-over contacts, which offer the customer several possibilities of wiring. The redundant contact configuration fulfils safety category 4.
For optimum operating comfort, the actuating force from position 2 to 3 for the centric and eccentric pressure is absolutely identical: even switching with just one finger at the outer end is reliably possible.
The B-COMMAND ZA3 enabling switches are available with or without rubber cap. In addition to the standard colour yellow, we can also supply the enabling switch ZA3 with a grey or black rubber cap. For applications in the automotive sector, our enabling switch rubber caps are also available in silicone-free material.
If you have any questions about our enabling switch ZA3, please do not hesitate to contact us by phone, e-mail or live chat at any time.
3-stage mode of operation Enabling switch (IEC 60947-5-8)
The function of our enabling switches is 3-stage or based on 3 positions. The working contacts are actuated in the middle position. For this purpose, we have implemented a clearly noticeable pressure point in the design. In the event of a panic action / injury, the operator would either press firmly (3rd stage) or release the handle (1st stage). Both times the working contacts would be deactivated and the system would be stopped. The 2nd stage must therefore be actively actuated and held. It is mainly used when setting up or servicing machines or robots within hazardous areas.