Inductive Sensors | Electrical Connections

Inductive sensors can be integrated into systems in various ways. The various versions of sensors with fixed cables with or without plugs or with connector plugs are available as standard in various designs.

Terminal Compartment

Sensors of this type have a designated area in the sensor housing for electrically interconnecting the sensor to the plant. The terminal compartment allows users to freely select the connection cable. This is of particular benefit in applications involving UV resistance or resistance to chemical agents. In addition, users are not tied to fixed cable lengths, and the terminal compartment offers increased tamper protection compared to versions with connectors.

Pepperl+Fuchs inductive sensors with terminal compartments may contain the type designation "KK" in the second position of the type code.

Fixed Cable with or without Connector

Sensors of this type have a fixed cable that can be preassembled or a fixed cable with a typical connector for industrial automation. Sensors with fixed cable are affordable options, since they do not require an additional single-ended female cordset and keep the number of connection points to a minimum. Connection to special connectors is possible depending on the application requirement (e.g., automotive industry).

Sensors with fixed cables and a connector have information on the cable length and the type of connector included at the end of their type code, e.g.: NBB0,8-4M25-E2-0,3M-V3, NMB1,5-8GM35-E2-FE-150MM-V1, etc.

Connectors for Data Transfer

Inductive sensors are available with a standard selection of industrial automation connectors, including M8 and M12, 1/2 inch and 7/8 inch. When replacing the sensor, the cabling does not need to be replaced completely. This prevents error-prone new connections in the terminal compartment. Standardized single-ended female cordsets are available in the Pepperl+Fuchs accessories range.

Inductive sensors with these connection options have one of the following type designations at the end of the type code: V1, V3, V5, V13, V16, V18.

Other Connections

In addition to other versions, e.g., FASTON® connectors or sensors with solder connections are available.

Electrical Versions and Basic Circuit Diagrams

The following table provides an overview of common inductive sensors with regard to the electrical version, sensor type, typical data, and the basic circuit diagram.

Direct-Current Voltage 10 V ... 60 V
Sensor type	2-wire Z/E0, Z1, Z2, Z3, Z4, Z5 Standard type Reverse polarity protection Short-circuit proof
Wiring diagram according to EN 60947-5-2	NO contact or NC contact Example: NO contact Z/Z0
Typical data	Basic series 5 V/4 mA … 100 mA Standard series 4 V/2 mA … 200 mA Residual current 0.7 mA/0.5 mA

Direct-Current Voltage 10 V ... 60 V

Sensor type

2-wire
Z/E0, Z1, Z2, Z3, Z4, Z5
Standard type
Reverse polarity protection
Short-circuit proof

Wiring diagram according to EN 60947-5-2

NO contact or NC contact

Example: NO contact Z/Z0

Typical data

Basic series 5 V/4 mA … 100 mA
Standard series 4 V/2 mA … 200 mA
Residual current 0.7 mA/0.5 mA

Basic Series 10 V ... 30 V, 100 mA Standard Series 10 V ... 60 V, 200 mA
Sensor type	3-wire E/E0, E1, E2, E3, E5, E8 Short-circuit proof Reverse polarity protection
Wiring diagram according to EN 60947-5-2	NO contact or NC contact Example: NO contact E/E0
Basic circuit diagram

Typical data	Voltage drop 2.5 V Residual current 0.3 mA Operating current 0 mA ... 200 mA No-load current 20 mA

Sensor type	4-wire A, A2 Short-circuit proof Reverse polarity protection
Wiring diagram according to EN 60947-5-2	NC contact and NO contact Example: NC contact and NO contact A2
Typical data	Voltage drop 2.5 V Residual current 0.3 mA Operating current 0 mA ... 200 mA No-load current 20 mA

Alternating-Current Voltage 20 V ... 250 V
Sensor type	WS, WÖ, W, W4
Wiring diagram according to EN 60947-5-2	NC contact and NO contact Example: NC contact WÖ/UÖ
Typical data	Voltage drop "ON": 6 V Residual current 1 mA Operating current 5 mA ... 500 mA

Universal Current 20 V ... 250 V AC, 45 Hz ... 65 Hz, 30 V ... 300 V DC
Sensor type	US, UÖ
Wiring diagram according to EN 60947-5-2	NC contact and NO contact Example: NC contact WÖ/UÖ
Typical data	Voltage drop "ON": 5 V Residual current 1.5 mA Operating current 5 mA ... 500 mA

Universal Current 20 V ... 250 V AC, 45 Hz ... 65 Hz, 30 V ... 300 V DC

Sensor type

US, UÖ

Wiring diagram according to EN 60947-5-2

NC contact and NO contact

Example: NC contact WÖ/UÖ

Typical data

Voltage drop "ON": 5 V
Residual current 1.5 mA
Operating current 5 mA ... 500 mA

Direct-Current Voltage 8 V DC
Sensor type	NAMUR, N, 1N, SN, S1N EN 60947-5-6
Wiring diagram according to EN 60947-5-2	NC contact or NO contact Example: NC contact N/N0 or SN
Typical data	Rated voltage 8 V Output current < 1 mA actuated > 3 mA unactuated

Sensor Types: Wire Colors and Plug Assignment According to EN 60947-5-2

Below you find an overview of the pin assignment and wire colors of the inductive sensors.

The pinout numbers correspond to the numbering of the pins on the connector plugs. This does not apply to proximity sensors for AC and those with 3-pin 8 mm plugs.

Switches without protective insulation require a protective conductor terminal for voltages above 50 V AC and 120 V DC.

2 AC Connections
Function	NO contact
Connection/wire color	./. Use any color except yellow/green or yellow. Ensure both wires have the same color.
Pinout	3 \| 4
V1 connector plug
V13 connector plug
V3 connector plug

2 DC Connections—Free Polarity
Function	NC contact
Connection/wire color	+ \| - ./.
Pinout	1 \| 2
V1 connector plug
V13 connector plug

2 DC Connections—Observe Polarity
Function	NO contact
Connection/wire color	+ \| - Brown (BN) \| Blue (BU)
Pinout	1 \| 4
V1 connector plug
V3 connector plug

2 DC Connections—Observe Polarity
Function	NC contact
Connection/wire color	+ \| - Brown (BN) \| Blue (BU)
Pinout	1 \| 2
V1 connector plug

3 DC Connections—Observe Polarity
Function	NO contact
Connection/wire color	+ \| - \| output Brown (BN) \| Blue (BU) \| Black (BK)
Pinout	1 \| 3 \| 4
V1 connector plug

Function	NC contact
Connection/wire color	+ \| - \| output Brown (BN) \| Blue (BU) \| Black (BK)
Pinout	1 \| 3 \| 2
V1 connector plug
V3 connector plug

4 DC Connections—Observe Polarity
Function	Change-over contact (open/close)
Connection/wire color	+ \| - \| NO contact output \| NC contact output Brown (BN) \| Blue (BU) \| Black (BK) \| White (WH)
Pinout	1 \| 3 \| 4 \| 2
V1 connector plug

2 DC and NAMUR Connections—Observe Polarity
Function	NO contact and NC contact
Connection/wire color	Channel 1+ \| Channel 1- \| Channel 2+ \| Channel 2- \| Valve + \| Valve - Brown (BN) \| Blue (BU) \| White (WH) \| Black (BK) \| Red (RD) \| Yellow (YE)
Pinout	1 \| 3 \| 2 \| 4 \| 5 \| 6
V1 connector plug
V16 connector plug
V18 connector plug

3 DC Connections—Observe Polarity
Function	NO contact and NC contact
Connection/wire color	Power supply + \| Power supply - \| Output channel 1 \| Output channel 2 Brown (BN) \| Blue (BU) \| Black (BK) \| White (WH)
Pinout	1 \| 3 \| 4
V1 connector plug	K1 = Channel 1 K2 = Channel 2
V18 connector plug	K1 = Channel 1 K2 = Channel 2