PH18CNT20PAM1SA

Photoelectric Sensor, 20 m, PNP/SPST-NO/SPST-NC, Through Beam, 10 to 30 VDC, PH18CNT Series

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Manufacturer: CARLO GAVAZZI
Product type:
SVHC: No SVHC (21-Jan-2025)
Product Range: PH18 Series
Sensing Method: Through Beam
Connection Method: 4 Pin M12 Connector
Sensor Output Type: PNP / SPST-NO / SPST-NC
Supply Voltage DC Min: 10V

Delivery and price
Units per pack	1
Price	40.86 €
Current stock	10+
Lead time	30 days

Datasheet

## **Photoelectrics Through-beam Type PH18CNT..., DC** 

- **Miniature sensor range** 

- **Range: 20 m** 

- **Sensitivity adjustment by potentiometer** 

- **Modulated, infrared light 850 nm** 

- **Supply voltage: 10 to 30 VDC** 

- **Output: 100 mA, NPN or PNP, N.O + N.C.** 

- **Degree of protection IP67, IP69K** 

- **LED indication for output, stability and power ON** 

- **Protection: reverse polarity, short circuit and transients** 

- **Cable, plug and pigtail versions** 

- **Excellent EMC performance** 

## **Product Descri tion p** 

## **Orderin Ke g y** 

The PH18CNT... is part of a family of inexpensive general purpose through-beam sensors in industrial standard 18 mm cylindrical and square ABS housing. 

Compact housing and high power LED for excellent performance-size ratio. 

Compact housing and high **Type** power LED for excellent **Housing style square** performance-size ratio. **Housing size** The potentiometer used for **Housing material** adjustment of the sensitivi- **Housing type neutral** ty makes the sensors highly **Detection principle** flexible. The output type is **Sensing distance** NPN or PNP and the output **Output type** switching function is NO and **Output configuration** NC. **Connection type Sensitive adjustment** 

The sensors are useful in applications where high-accuracy detection as well as small size is required. 

**PH18CNT20PAM1SA** 

## **T e Selection yp** 

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|---|---|---|---|---|---|
|Housing type|Range|Connec-|Ordering no.|Ordering no. Receiver|Ordering no. Receiver|
|Sn|tion|Emitter|NPN|PNP|
|Make or break switching|Make or break switching|
|M18 Square type|20 m|Cable|PH 18 CNT 20|PH 18 CNT 20 NASA|PH 18 CNT 20 PASA|
|M18 Square type|20 m|Plug|PH 18 CNT 20M1 PH 18 CNT 20 NAM1SA|PH 18 CNT 20 PAM1SA|
|M18 Square type|20 m|Pigtail M12|PH 18 CNT 20T1|PH 18 CNT 20 NAT1SA|PH 18 CNT 20 PAT1SA|

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## **Specifications Receiver** according to EN60947-5-2 

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|---|---|---|---|
|Rated operating distance|(Sn) Up to 20 m|
|Blind zone|0 mm|
|Sensitivity control|Adjustable by potentiometer|
|Electrical adjustment|210˚|
|Mecanical adjustment|240˚|
|Adjustable distance to target 1 - 20 m|
|Temperature drift|≤ 0.2%/ºC|
|Hysteresis|(H)|
|(differential travel)|≤ 20%|
|Rated operational volt.|(UB )|10 to 30 VDC|
|(ripple included)|
|Ripple|(Urpp|)|≤ 10%|
|Output current|
|Continuous (Ie)|≤ 100 mA|
|Short-time (I)|≤ 100 mA|
|(max. load capacity 100 nF)|
|No load supply current|(Io)|≤ 15 mA @ 24 VDC|
|Minimum operational current|(Im)|0.5 mA|

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|---|---|---|
|OFF-state current|(Ir )|≤ 100 µA|
|Voltage drop|(Ud )|≤ 2.0 VDC @ 100 mA|
|Protection|Short-circuit, reverse|
|polarity and transients|
|Sensing angle|± 4º|
|Ambient light|30.000 lux|
|Incandescent lamp|
|Operating frequency|500 Hz|
|Response time|
|OFF-ON (tON)|≤ 1.0 ms|
|ON-OFF (tOFF )|≤ 1.0 ms|
|Power ON delay|(tv)|≤ 200 ms|
|Output function|
|Type|NPN or PNP|
|Switching function|NO and NC|
|Indication|
|Output ON|LED, yellow|
|Signal stability and power ON|LED, green|

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Specifications are subject to change without notice (08.11.2022) 

**1** 

**PH18CNT...** 

## **Specifications Emitter** according to EN60947-5-2 

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|---|---|---|
|Rated operational volt.|(UB )|10 to 30 VDC|
|(ripple included)|
|Ripple|(Urpp )|≤ 10%|
|Supply current|(Io)|≤ 25 mA @ 24 VDC|
|Light source|LED, 850 nm|
|Light type|Infrared, modulated|
|Sensing angle|± 4º|

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|---|---|---|
|Light spot Diameter|Ø 1500 mm @ 10 m|
|Protection|Reverse polarity and|
|transients|
|Indication function|
|Power supply ON|LED, green|
|Signal stability and power ON|LED,|green|
|Power on delay|< 200 ms|

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## **Specifications Common** according to EN60947-5-2 

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|---|---|---|---|---|---|
|Environment|
|Installation category|III (IEC 60664/60664A;|
|60947-1)|
|Pollution degree|3 (IEC 60664/60664A;|
|60947-1)|
|Degree of protection|IP 67, IP 69K*|
|Ambient temperature|
|Operating|-25|°|to +60|°|C|
|Storage|-40|°|to +70|°|C|
|Vibration|10 to 150 Hz, 1.0 mm/15 g|
|(IEC 60068-2-6)|
|Shock|30 g / 11ms, 3 pos, 3 neg|
|per axis|
|(IEC 60068-2-6, 60068-2-32)|
|Rated insulation voltage|500 VAC (rms)|
|IEC protection class III|
|Housing material|
|Body|ABS, grey|
|Backpart|PC-Transparent|
|Front material|PMMA, red|

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|---|---|---|---|
|Cable gland|POM, Black|
|Trimmer shaft|POM, Dark Grey|
|Locknuts|PP, black|
|Mounting bracket|PPA, black|
|Connection|
|Cable|PVC, grey, 2 m|
|Receiver|4 x 0.25 mm|[2]|, Ø = 4.5 mm|
|Emitter|2 x 0.25 mm|[2]|, Ø = 4.5 mm|
|Plug|M12, 4-pin|
|(CON.14NF..W series)|
|Pigtail|PUR, grey, 30 cm|
|4 x 0.25 mm|[2]|, Ø = 4.5 mm|
|M12, 4-pin|
|(CON.14NF..W series)|
|Weight|With cable: 85 g|
|With Pigtail: 40 g|
|With plug:  25 g|
|CE-marking|Yes|
|Approvals|cULus (UL508)|
|supply class 2|

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* The IP69K test according to DIN 40050-9 for high-pressure, high-temperature wash-down applications. The sensor must not only be dust tight (IP6X), but also able to withstand high-pressure and steam cleaning. The sensor is exposed to high pressure water from a spray nozzle that is fed with 80°C water at 8’000– 10’000 KPa (80–100bar) and a flow rate of 14–6L/min. The nozzle is held 100 –150 mm from the sensor at angles of 0°, 30°, 60° and 90° for 30s each. The test device sits on a turntable that rotates with a speed of 5 times per minute. The sensor must not suffer any damaging effects from the high pressure water in appearance and function. 

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90°<br>60°<br>30°<br>0°<br>**----- End of picture text -----**<br>


## **O eration Dia ram p g** 

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tv = Power ON delay<br>ONON<br>Power supplyPower supply OFFOFF A<br>PresentPresent<br>Target (emitter)Target (emitter) Not presentNot Present oa. aeCa<br>PresentPresent<br>ObjectObject Not presentNot Present Ss CG<br>ONON Tv<br>Break Output (N.C.)Break Output (N.C.) OFFOFF l e<br>ONON Tv<br>Make Output (N.O.)Make Output (N.O.)  OFFOFF a es<br>**----- End of picture text -----**<br>


Specifications are subject to change without notice (08.11.2022) 

**2** 

**PH18CNT...** 

## **Wiring Diagrams** 

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Receiver<br>NPN PNP<br>1 BN V 1 BN V<br>4 BK<br>2 WH<br>2 WH<br>4 BK<br>3 BU 3 BU<br>V GND V GND<br>Emitter<br>1 BN V<br>3 BU<br>V GND<br>**----- End of picture text -----**<br>


## **Detection Diagram** 

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Emitter<br>X Y<br>Receiver (feet)<br>0,0 16,4 32,8 49,2 65,6 82,0<br>150 5,9<br>100 3,9<br>50 2,0<br>0 0,0<br>-50 -2,0<br>-100 -3,9<br>-150 -5,9<br>0,0 5,0 10,0 15,0 20,0 25,0<br>Distance (m)<br>(mm) (inch)<br>**----- End of picture text -----**<br>


## **Excess Gain** 

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(feet)<br>0,0 16,4 32,8 49,2 65,6 82,0<br>1.000<br>100<br>10<br>1<br>0 5 10 15 20 25<br>Distance (m)<br>Excess Gain<br>**----- End of picture text -----**<br>


## **Si nal Stabilit Indication g y** 

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Excess GainExcess Gain<br>1.11.1 Operation level × 1.1Operation level x 1.1<br>1.01.0 Operation levelOperation level<br>0,90.9 Operation level × 0.9Operation level x 0.9<br>TimeTime<br>Green LED ONGreen LED ON<br>Yellow LED ONYellow LED ON<br>**----- End of picture text -----**<br>


## **APH18-MB1** 

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6.5<br>Ø 27<br>Ø 27<br>6.5<br>**----- End of picture text -----**<br>


Specifications are subject to change without notice (08.11.2022) 

**3** 

**PH18CNT...** 

## **—** —‘“‘Ci~S **Mountin S stems g y** 

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M18 Locknut<br>APH18-MB1<br>Min. 1.0 mmMax. 4.5 mm<br>**----- End of picture text -----**<br>


PH18 mounting with a combination of 1 x APH18-MB1 and 1 x M18 locknut. Maximum torque 0.9 NM 

## **Dimensions** 

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Cable/Pigtail version<br>**----- End of picture text -----**<br>


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31.5 Power and Stability  15 Operation  Power and Stability  Pigtail M12<br>10.5 17.5 Indicator (Green) Indicator (Yellow) Indicator (Green)<br>3.4<br>3<br>Sensitivity Control 240°<br>Receiver or<br>Optical Axis Emitter<br>A | _<br>SI =<br>Ø 9.9<br>Ø 4.5<br>Plug version<br>31.5 Power and Stability  15 Operation  Power and Stability<br>10.5 17.5 Indicator (Green) Indicator (Yellow) Indicator (Green)<br>3.4<br>3<br>Sensitivity Control 240°<br>Receiver or<br>Optical Axis Emitter<br>|; mc i ~~ Je7 = |OF<br>=i Ss Ee<br>M12 x 1 plug<br>1<br>2 4<br>3<br>1<br>2 4<br>3<br>1.5<br>5.45<br>11<br>24.1 35<br>M18 x 1<br>6.3<br>1.5<br>5.45<br>11<br>24.1 35<br>M18 x 1<br>10.8<br>**----- End of picture text -----**<br>


Specifications are subject to change without notice (08.11.2022) 

**4** 

## **Installation Hints** 

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To avoid interference from inductive voltage / Relief of the cable strain Protection of the sensing face Sensor mounted on a mobile carrier<br>current peaks, separate the proximity switch<br>cables from any other power cables. E.g.<br>Engine, contactor or solenoid cables<br>Incorrect Incorrect<br>Incorrect<br>Correct Correct<br>> 100 mm<br>A proximity switch should not serve Any repetitive flexing of the<br>The cable should not be pulled as mechanical stop cable should be avoided<br>**----- End of picture text -----**<br>


## **Deliver Contents y** 

- Photoelectric switch: PH 18 CNT... 

## **Accessories** 

   - Connector type CON.14NF..W series 

- Installation instruction on plastic bag 

- Screwdriver 

- Mounting bracket APH18-MB1 

- 1 M18 locknuts 

- **Packaging:** Plastic bag 

- Emitter and receiver is packed separately 

Specifications are subject to change without notice (08.11.2022) 

**5**

Updated at April 29, 2026

Founded in Milan in 1931, Carlo Gavazzi is a globally recognized leader in the design and manufacture of high-quality automation components. For nearly a century, the company has driven technological innovation in the industrial and building automation markets. With ISO 9001-certified production facilities across Europe and Asia, Carlo Gavazzi delivers state-of-the-art solutions tailored for demanding applications, including HVAC, renewable energy, semiconductor manufacturing, and electric vehicle charging infrastructure. Our extensive portfolio of Carlo Gavazzi components focuses heavily on their industry-leading switching and sensing technologies. We carry a comprehensive selection of solid state relays, contactors, and power relays engineered for exceptional reliability and thermal performance. Alongside these robust switching solutions, our range features a wide array of precision sensors, with a strong emphasis on proximity switches and light sensors that are critical for automated manufacturing processes, mobile equipment, and access control systems. Beyond core sensing and switching, the Carlo Gavazzi lineup extends into essential power management, circuit protection, and control devices. This includes highly efficient AC/DC converters, thermal magnetic circuit breakers, and advanced panel instrumentation designed to monitor and optimize energy efficiency. From current sensing transformers to motor starters, engineers consistently trust Carlo Gavazzi to provide competitive, dependable, and forward-thinking components for their most complex automation challenges.

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