Telemecanique Sensors XS618B4MAL2 Inductive Proximity Sensor: M18, 12 mm, 2-Wire NO for 24–240 VAC/DC
The Telemecanique Sensors XS618B4MAL2 inductive proximity sensor is a robust cylindrical M18 sensor intended for industrial applications that need a longer sensing distance and broad supply compatibility. This XS6-series model is specified with a 12 mm nominal sensing distance, uses a 2-wire wiring technique, and is designed for 24…240 VAC/DC operation. The discrete output function is normally open (NO), and electrical connection is through a 2 m fixed cable.
Where a 12 mm M18 sensor brings measurable stability
In heavy-duty automation, targets often move with larger tolerances and higher vibration than compact assembly lines. A 12 mm nominal sensing distance can provide a comfortable operating margin, reducing sensitivity to minor misalignment and long-term mechanical drift. The Telemecanique Sensors XS618B4MAL2 inductive proximity sensor is frequently used where target clearance varies or where the sensor must be mounted behind protective structures.
This model is specified as non flush mountable, which typically indicates an unshielded design. That detail matters for installation: the sensor should not be embedded in metal without clearance, but the tradeoff is improved sensing margin for the body size.
Technical characteristics that shape correct use
XS618B4MAL2 is specified as a nickel-plated brass M18 inductive proximity sensor with a frontal detection face and PPS front material. It is a 2-wire sensor with an AC/DC circuit type and a NO discrete function, designed for 24…240 VAC/DC supply. Switching capacity is specified in separate AC and DC ranges, reflecting its mixed-supply design intent. Environmental protection is referenced as IP68 (double insulation) and IP69K.
Installation: clearance and spacing are part of performance
Non-flush sensors need room to “breathe.” When installing the Telemecanique Sensors XS618B4MAL2 inductive proximity sensor, provide clearance around the sensing face and avoid surrounding it with metal that can constrain the sensing field. Also consider spacing between multiple sensors installed close together to avoid mutual influence.
- Clearance planning: Keep adjacent metal surfaces away from the sensing face perimeter where possible.
- Rigid mounting: Use stable bracketry, especially in vibrating equipment.
- Cable management: Protect the 2 m cable from repeated flex and abrasion.
Commissioning: confirm behavior across the real target envelope
Commissioning should validate detection at minimum and maximum target distances expected during operation. For example, if a target can wobble, test at the farthest position. Confirm that switching occurs reliably at production speed. If detection is inconsistent, reposition the sensor to increase margin rather than relying on the edge of the sensing range.
Because the Telemecanique Sensors XS618B4MAL2 inductive proximity sensor is designed for mixed AC/DC supply, also confirm that the chosen supply and input device match the wiring approach. A clean electrical installation supports stable switching, but the primary determinant of repeatability is still the mechanical geometry.
Maintenance: practical checks that prevent recurring faults
Periodic inspection should focus on mount tightness, cable integrity, and cleanliness around the sensing face. In ferrous environments, metallic dust can accumulate near the sensor and alter the field. If the machine begins to show unexpected switching, verify the target has not changed shape or material and that the sensor’s clearance area remains intact after maintenance work.
For related product families and broader selection context, visit Telemecanique sensor.
Telemecanique Sensors XS618B4MAL2 FAQ
1) What is Telemecanique Sensors XS618B4MAL2 ?
The Telemecanique Sensors XS618B4MAL2 inductive proximity sensor is an M18 inductive sensor specified with a 12 mm nominal sensing distance and a NO discrete function.
2) What supply range is specified?
It is specified for 24…240 VAC/DC operation (50/60 Hz)
3) Is it flush mountable?
No. It is specified as non flush mountable.
4) What wiring technique is specified?
It is specified as a 2-wire sensor with an AC/DC output circuit type.
5) What ingress protection is referenced?
It is referenced with IP68 (double insulation) and IP69K.

