The CP101AC30 gives you a 3-position key switch with a centre-off, both outer positions selectable and the key removable from any of the three — a common setup for "Manual - Off - Auto" mode selection where you need to lock the mode a machine is left in. It's the 3-way counterpart to EMAS's simpler 2-position CP101AC20, priced well below premium-brand equivalents and held in UK stock for fast dispatch.
Centre off with 2 selectable outer positions. For example: 'Manual - Off - Auto'.
Switch can be left in any position with key safely removed.
Technical Details
Frequently Asked Questions
Can the key be removed in all three positions?
Yes — key removal at all positions, so you can lock the switch in Manual, Off, or Auto and remove the key from whichever mode it's left in.
What's the difference between this and the CP101AC20?
This CP101AC30 has a centre-off with two selectable outer positions (e.g. "Manual - Off - Auto"). The CP101AC20 is a simpler 2-position on/off switch without the centre-off state.
Is this suitable for outdoor installation?
Yes — IP65 rated, protected against dust ingress and low-pressure water jets.
Can I use the two contacts to signal which mode is selected?
Yes — each outer position closes its own N.O. contact, so you can wire separate signals for Manual and Auto modes into your control system.
Industry Applications
- Machine mode selection — lockable Manual/Off/Auto selection preventing unauthorised mode changes
- Security & access control — three-state lockable selection for alarm or access systems
- Industrial machinery — securing which operating mode equipment is left in between shifts

