SICK 7900045 IM12-08NPS-ZC1 PNP Inductive Proximity Sensor

Technical Overview

The SICK IM12-08NPS-ZC1 is an M12 inductive proximity sensor with a PNP normally open output and DC three-wire wiring. Its electromagnetic sensing principle detects metal targets without requiring an optical path or separate reflector. The nominal sensing range is 8 mm; the actual target material, geometry and installed gap must be qualified. The non-flush mounting arrangement and M12 × 1 threaded nickel-plated brass housing define installation in the machine fixture. The sensor provides 1,000 Hz switching and operates from 10–30 V DC, with an M12 four-pin connector, a plastic sensing face and IP67 protection.

Non-flush M12 inductive sensor with 8 mm nominal range, PNP normally open output, 1,000 Hz switching and M12 four-pin connector.

Key Features

Inductive proximity sensing for metal targets

8 mm nominal sensing range

Non-flush installation; M12 × 1 threaded housing

PNP normally open output; DC three-wire wiring

1,000 Hz switching frequency

10–30 V DC operation; ≤10% residual ripple

Continuous output current ≤200 mA

Nickel-plated brass housing; plastic sensing face

IP67; −25 to +70 °C operating range

M12 four-pin connector

Technical Specification Matrix

Parameter	Value
Functional principle	Inductive proximity sensing of metal targets
Housing form	Metric cylindrical, standard design
Thread size	M12 × 1
Housing diameter	12 mm
Nominal sensing range Sn	8 mm
Installation type	Non-flush
Switching frequency	1,000 Hz
Switching output	PNP
Output function	Normally open (NO)
Electrical wiring	DC 3-wire
Connection	Connector M12, 4-pin
Power supply	10–30 V DC
Residual ripple	≤10%
Voltage drop	≤1.2 V at maximum output current
Time delay before availability	≤100 ms
Hysteresis	1–15%
Reproducibility	≤5% of Sr at constant supply and ambient temperature
Temperature drift	±10% of Sr
Continuous output current	≤200 mA
Housing material	Brass, nickel-plated
Sensing face material	Plastic
Housing length	65 mm
Thread length	38 mm
Maximum tightening torque	10 Nm
IP rating	IP67 according to EN 60529
Operating temperature	−25 to +70 °C
EMC	EN 60947-5-2
Shock and vibration resistance	30 g, 11 ms / 10–55 Hz, 1 mm
MTTFD	192 years
Diagnostic coverage DCavg	0%

Parameter

Value

Functional principle

Inductive proximity sensing of metal targets

Housing form

Metric cylindrical, standard design

Thread size

M12 × 1

Housing diameter

12 mm

Nominal sensing range Sn

8 mm

Installation type

Non-flush

Switching frequency

1,000 Hz

Switching output

PNP

Output function

Normally open (NO)

Electrical wiring

DC 3-wire

Connection

Connector M12, 4-pin

Power supply

10–30 V DC

Residual ripple

≤10%

Voltage drop

≤1.2 V at maximum output current

Time delay before availability

≤100 ms

Hysteresis

1–15%

Reproducibility

≤5% of Sr at constant supply and ambient temperature

Temperature drift

±10% of Sr

Continuous output current

≤200 mA

Housing material

Brass, nickel-plated

Sensing face material

Plastic

Housing length

65 mm

Thread length

38 mm

Maximum tightening torque

10 Nm

IP rating

IP67 according to EN 60529

Operating temperature

−25 to +70 °C

EMC

EN 60947-5-2

Shock and vibration resistance

30 g, 11 ms / 10–55 Hz, 1 mm

MTTFD

192 years

Diagnostic coverage DCavg

Industrial Applications

1. Confirming a metal part in a fixture

A machining fixture can place the sensor beside the expected location of a metal part so the target enters its qualified sensing zone when seated. Non-flush installation requires the sensing end to project beyond the surrounding mounting surface, and the PNP normally open output provides the presence signal. Actual target material and geometry must be qualified for the installed gap.

Problem Solved

A contactless metal-presence signal helps the sequence controller identify an occupied fixture position before the next operation, avoiding a mechanical feeler pressing against the seated part.

Non-flush mounting PNP NO Metal presence

2. Counting metal tabs on a rotating mechanism

A rotating mechanism can present separated metal tabs to the M12 sensing face and count each normally open output transition. The 1,000 Hz switching frequency supports repeated passages within the documented limits. Tab geometry, spacing, operating gap and target material must be qualified so consecutive targets produce distinct switching events.

Problem Solved

Discrete tab passages provide the controller with a pulse count related to mechanism rotation, supporting cycle counting without an optical beam or contacting follower on the moving tabs.

1,000 Hz Inductive PNP NO

3. Confirming a shuttle at a transfer position

A shuttle can carry a metal flag that enters the sensor’s local detection zone at a transfer position. The M12 thread supports fixed installation, while the normally open PNP signal reports the flag state. IP67 protection and the nickel-plated brass body support exposed machine placement.

Problem Solved

A local position-confirmation signal helps the controller coordinate transfer sequencing when the metal flag reaches the monitored point, without a mechanical switch actuator following each shuttle movement.

M12 thread IP67 Metal flag