The Siemens 3SE5112-OCA00 is a position switch from the 3SE5 series, built for end-of-travel and presence detection on automated machinery. It uses a roller lever actuator that trips a snap-action contact block rated for 3 A at 230 V AC, configured as 1 normally open plus 1 normally closed. The enclosure carries an IP66/IP67 rating, meaning it seals against hose-directed water and temporary submersion — suitable for washdown zones on food processing lines or outdoor conveyor transfer points where a standard IP64 switch would fail within a shift. Cable entry is via an M20 x 1.5 threaded port, the standard metric size for European panel glands. That's the same thread as most 20 mm cable glands, so it fits existing panel knockouts without an adapter.
Siemens 3SE5112-OCA00 Position Switch, Roller Lever, IP66/67
Siemens 3SE5 series, Position Switch, 3SE5112-OCA00, roller lever actuator, 3 A / 230 V AC, IP66/IP67, snap-action 1 NO + 1 NC.
Specifications
| Parameter | Value |
|---|---|
| Type | Position Switch |
| Model | 3SE5112-OCA00 |
| Weight | 0.420 Kg |
| Condition | New |
| Shelf no. | 201105 |
| Connection | M20 x 1.5 Cable entry |
| Actuation | Roller Lever |
| IP rating | IP66,67 |
| Contact operation | Snap action |
| Contact current max. | 3 A |
| Output configuration | 1 Normally open + 1 Normally closed |
| Switching voltage max. | 230 V AC |
Product details
Frequently asked questions
What is the contact configuration and electrical rating?
The switch provides one normally open and one normally closed snap-action contact, rated for a maximum of 3 A at 230 V AC. That covers most 24 VDC and 120 VAC pilot-duty signal circuits in a control panel.
What is the IP rating and what does it mean for installation?
Rated IP66 and IP67. IP66 means protected against powerful water jets; IP67 means it withstands immersion up to 1 meter for 30 minutes. This switch can be mounted in washdown areas or outdoors without a secondary cover.
What type of actuator does it use?
A roller lever actuator. The roller follows the cam or machine slide, giving a positive mechanical snap when the target reaches the set position. It's the most common actuator for linear-motion sensing on transfer rails and press brakes.