Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Brand	KEYENCE
Model Number	PS-N11N / PS-N12N
Sensor Type	Photoelectric Amplifier Separated Type
Output Configuration	NPN Open Collector
Response Time	50 µs (Ultra-fast mode)
Light Source	Red LED (660 nm)
Power Supply Voltage	12 to 24 VDC ±10%
Control Output	Switching capacity 100 mA or less
Protection Circuit	Reverse power supply, Output short-circuit protection
Ambient Operating Temperature	-10°C to +55°C

6 reviews

Anonymous

Mar 29, 2026

Rating: 5/5

Solid everyday option

Simple, reliable, and easy to integrate with my existing setup.

Anonymous

Mar 28, 2026

Rating: 5/5

Will buy again

Helpful product page and smooth experience overall.

Anonymous

Mar 26, 2026

Rating: 4/5

Good quality for the price

I use it regularly and the performance has been stable so far.

Anonymous

Mar 14, 2026

Rating: 4/5

Works as described

No major issues. The finish and fit are both acceptable for this range.

Anonymous

Mar 09, 2026

Rating: 5/5

Exactly what I expected

The Genuine KEYENCE Photoelectric Sensor Module Amplifier Separated Type PS-N11N PS-N12N arrived in good condition and matches the listing details.

Anonymous

Mar 05, 2026

Rating: 4/5

Reliable and practical

After a few days of use, it feels dependable and consistent for routine tasks.

5 FAQ

Q: Can I use this in a washdown environment?

A: The amplifier unit itself is not IP67 rated and should be installed inside a control cabinet. However, it can be paired with IP67 or IP69K rated sensor heads for washdown applications.

Q: Is this module compatible with PNP sensor heads?

A: No, the PS-N11N/PS-N12N is specifically designed for NPN output configurations. For PNP requirements, please consider the PS-P series amplifiers.

Q: Does this come with mounting brackets?

A: The amplifier unit typically includes a DIN rail mount clip. Specific mounting brackets for sensor heads are usually sold separately depending on the head model you pair it with.

Q: What is the maximum cable length recommended between the amplifier and the sensor head?

A: For optimal performance, we recommend keeping the cable length between the amplifier unit and the sensor head under 2 meters when using standard cables. Extension cables are available for longer distances.

Q: How do I switch between Light-ON and Dark-ON modes?

A: You can easily switch between Light-ON and Dark-ON modes by pressing the mode button on the front panel until the indicator LED reflects the desired setting, as detailed in page 14 of the user manual.

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