Turck BI20-CP40-FZ3X2 Inductive Proximity Sensor | 20mm Sensing Distance | Flush Mount | 2-Wire AC/DC | Terminal Chamber | IP67 | Germany Turck | Order Available

Original Turck (Germany) BI20-CP40-FZ3X2 inductive proximity sensor (ID 13402), rectangular CP40 housing (114×40×40mm), rated switching distance 20mm, flush mount. 2-wire AC/DC universal, operating voltage 20-250VAC / 10-300VDC, NO/NC programmable output, max switching frequency 20Hz. Terminal chamber connection (≤2.5mm²), IP67 protection, operating temperature -25~+70°C, green power LED + red switching state LED, 9-direction adjustable active face. Made in Germany. Order available, worldwide sh

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Product Details

1. Product Overview

The Turck BI20-CP40-FZ3X2 (ID 13402) is a rectangular inductive proximity sensor manufactured by TURCK (Germany), part of the BI20-CP40 series. This sensor features a CP40 rectangular housing design with dimensions of 114 × 40 × 40 mm, a rated switching distance of 20 mm, and supports flush mounting.

This sensor is a 2-wire AC/DC universal type, with an operating voltage range of 20-250 VAC / 10-300 VDC. The output function can be programmed via wiring to normally open (NO) or normally closed (NC), with a maximum switching frequency of 20 Hz. It uses a terminal chamber connection method, supporting wires up to 2.5 mm², making installation and maintenance convenient.

The BI20-CP40-FZ3X2 offers excellent environmental adaptability, with IP67 protection rating, operating temperature range of -25°C to +70°C, passed 55 Hz vibration test and 30 g shock test, and MTTF up to 2283 years (per SN 29500 standard, at 40°C). The sensor is equipped with a green power indicator LED and a red switching state LED, and the active face supports 9-direction adjustment to accommodate various installation scenarios.

This product is made in Germany, with EAN code 4047101066623, weighing approximately 220 g. It is widely used for position detection, limit control, and object counting in industrial applications such as automated production lines, machine tools, material handling, and packaging machinery.

2. Specifications

表格

Parameter	Value
Brand	Turck
Model	BI20-CP40-FZ3X2
ID / Article Number	13402
EAN Code	4047101066623
Product Type	Inductive Proximity Sensor
Series	BI20-CP40 Series
Housing Shape	Rectangular, CP40
Dimensions	114 × 40 × 40 mm
Housing Material	Plastic PBT-GF30-V0, Black
Active Area Material	Plastic PBT-GF30-V0, Yellow
Rated Switching Distance	20 mm
Mounting	Flush
Safe Operating Distance	≤ 0.81 × Sn (to be confirmed, same series reference)
Repeat Accuracy	≤ 2% of full scale (to be confirmed, same series reference)
Operating Voltage	20…250 VAC / 10…300 VDC
Output Type	2-wire, NO/NC programmable
AC Rated Operational Current	≤ 400 mA
DC Rated Operating Current	≤ 300 mA
Frequency Range	≥ 50…≤ 60 Hz
Residual Current	≤ 1.7 mA
Isolation Test Voltage	≤ 1.5 kV
Surge Current	≤ 8 A (≤ 10 ms, max 5 Hz)
Switching Frequency	Max 20 Hz
Minimum Operating Current	≥ 5 mA (to be confirmed, same series reference)
Voltage Drop	To be confirmed by manufacturer
Connection Type	Terminal chamber
Wire Cross-Section	≤ 2.5 mm²
Active Face Orientation	9 directions adjustable
Power Indication	LED, Green
Switching State Indication	LED, Red
Operating Temperature	-25°C ~ +70°C
Storage Temperature	To be confirmed by manufacturer
Protection Class	IP67
Humidity	To be confirmed by manufacturer
Vibration Resistance	55 Hz (1 mm amplitude)
Shock Resistance	30 g (11 ms)
MTTF	2283 years (acc. to SN 29500, Ed.99, 40°C)
Weight	220 g
Country of Origin	Germany (DE)
Customs Tariff Number	9026104000
Stock Status	Order available

3. Key Features

20mm Long Sensing Distance — Rated switching distance up to 20 mm, suitable for industrial applications requiring larger detection distances, reducing collision risk between sensor and target object.
Flush Mount Design — Supports flush mounting, the sensor can be fully embedded in metal mounting surface without protruding, saving installation space, suitable for space-constrained applications such as machine tools and molds.
AC/DC Universal 2-Wire — 2-wire design, supports wide voltage range of 20-250 VAC and 10-300 VDC, AC and DC universal, reducing spare part types and inventory costs.
NO/NC Programmable Output — Output function can be programmed via wiring to normally open (NO) or normally closed (NC), one sensor meets two application requirements, flexibly adapting to different control system needs.
Terminal Chamber Connection — Terminal chamber design, supports wires up to 2.5 mm², convenient and reliable on-site wiring, no special connectors required, easy maintenance and replacement.
9-Direction Adjustable Active Face — Active face supports 9-direction adjustment, flexible selection of active face orientation according to installation space and detection direction, one sensor adapts to multiple installation orientations.
IP67 High Protection Rating — IP67 protection, completely dustproof and can be briefly immersed in water, suitable for harsh industrial environments with moisture, dust, and washdown requirements.
Wide Temperature Range High Reliability — Operating temperature -25°C to +70°C, passed 55 Hz vibration and 30 g shock tests, MTTF up to 2283 years, ensuring long-term stable operation in harsh industrial environments.
Dual LED Status Indicators — Green LED indicates power status, red LED indicates switching output status, intuitive and convenient for on-site commissioning and fault diagnosis.
German Original Quality — Designed and manufactured by TURCK (Germany), a global leading industrial automation sensor manufacturer, products comply with German and international industrial standards, passed strict quality inspection.

4. Typical Applications

Automated Production Lines: Workpiece in-position detection, position confirmation, conveyor line counting
Machine Tool Industry: Tool position detection, workpiece clamping confirmation, travel limit
Material Handling Systems: Conveyor line object detection, lift platform position confirmation, silo level detection
Packaging Machinery: Packaging material in-position detection, finished product counting, sealing position confirmation
Automotive Manufacturing: Welding station workpiece positioning, assembly line part detection, manipulator position confirmation
Food & Beverage Industry: Filling line bottle detection, packaging line box detection (IP67 for washdown environments)
Warehousing & Logistics: Rack goods detection, stacker position confirmation, conveyor line sorting detection
Textile & Printing Machinery: Fabric/paper tension detection, roller position confirmation, counting
Metallurgy & Mining: Equipment position detection, material in-position confirmation (wide temperature for harsh environments)
Other Industrial Automation: Any application requiring non-contact metal object detection

5. Model Explanation

Model BI20-CP40-FZ3X2:

BI: Inductive Sensor, B-series
20: Rated switching distance 20 mm
CP40: Rectangular housing, 40 × 40 mm (CP = Compact Plastic)
FZ3X2: Output type code, 2-wire AC/DC universal, NO/NC programmable, terminal chamber connection

ID / Article Number: 13402

EAN Code: 4047101066623

Brand: Turck, German industrial automation sensor brand

6. Mounting Instructions

Mounting Distance Reference:

表格

Distance Parameter	Value
Distance D (sensor center to mounting edge)	2 × B (B = active face width 40 mm, i.e. 80 mm)
Distance W (spacing between two side-by-side sensors)	3 × Sn (Sn = 20 mm, i.e. 60 mm)
Distance S (sensor to side metal)	1 × B (i.e. 40 mm)
Distance G (sensor to rear metal)	6 × Sn (i.e. 120 mm)
Active Face Effective Width B	40 mm

Recommended Accessories:

STRM M20X1.5 SCHWARZ (ID 6905902): M20 × 1.5 cable gland, black
JS025/037 (ID 69429): Adjusting bar for rectangular housings C40/CP40, material VA 1.4301 stainless steel
BSS-CP40 (ID 6901318): Mounting clamp for 40 × 40 mm rectangular housings, material polypropylene

7. Why Choose Us

Factory Order, Quality Guaranteed — All products sourced directly from Turck Germany factory or authorized channels, ensuring genuine originals with factory packaging and quality certificates. Standard lead time 4-8 weeks, rush orders can be coordinated for expedited delivery.
Worldwide Delivery — Supports DHL, FedEx, UPS and other international couriers. Can also ship via your designated freight forwarder to 200+ countries.
Professional Technical Support — Selection consultation, sensing distance confirmation, output type matching, mounting distance calculation, and alternative model recommendation services to help you quickly identify the correct sensor model.
Flexible Procurement — Supports small-batch sample orders and large-volume project orders with tiered pricing discounts. Project-specific quotations available.
Pre-shipment Inspection — Appearance check, packaging verification, model confirmation, and function test performed before shipment to ensure delivered products are intact, model-accurate, and functional.

8. Frequently Asked Questions (FAQ)

Q1: What is the sensing distance of BI20-CP40-FZ3X2? What materials can it detect?

A: According to official data, the rated switching distance of BI20-CP40-FZ3X2 is 20 mm (with 37# steel as standard target). It is an inductive sensor and can only detect metal objects. Correction factors vary by metal material (same series reference): 37# steel = 1, stainless steel = 0.7, aluminum = 0.3, brass = 0.4. For example, when detecting stainless steel, the actual sensing distance is approximately 20 × 0.7 = 14 mm.

Q2: Is this sensor NPN or PNP output? Can it connect to a PLC?

A: The BI20-CP40-FZ3X2 is a 2-wire AC/DC universal sensor, not an NPN/PNP type (3/4-wire). Its output function can be programmed via wiring to normally open (NO) or normally closed (NC). 2-wire sensors can be directly connected to PLC digital input modules, but note whether the PLC input type supports 2-wire sensors (consider minimum operating current and residual current). If your PLC requires NPN/PNP type sensors, please contact us for alternative model recommendations.

Q3: What is the operating voltage range? Can it connect directly to 220V AC?

A: According to official data, the operating voltage range of BI20-CP40-FZ3X2 is 20-250 VAC / 10-300 VDC. Therefore, it can be directly connected to 220V AC (within 20-250 VAC range), and also to 24V DC (within 10-300 VDC range). AC and DC universal, one sensor adapts to multiple power supply environments.

Q4: How to wire the terminal chamber? Are special connectors required?

A: The BI20-CP40-FZ3X2 uses a terminal chamber connection method, no special connectors required. After opening the terminal chamber cover, simply connect the wires to the internal terminals, supporting wires up to 2.5 mm² cross-section. If a cable gland is needed, you can optionally use the Turck original M20 × 1.5 cable gland (ID 6905902). The terminal chamber design makes on-site installation and maintenance very convenient.

Q5: What does IP67 protection rating mean? Can it be used in water?

A: IP67 protection rating means: 6 = completely protected against dust ingress; 7 = at normal temperature and pressure, can be briefly immersed in water up to 1 meter deep without water ingress. Therefore, the BI20-CP40-FZ3X2 can be used in dusty, humid, and water-washdown environments, but is not suitable for long-term immersion in water or high-pressure water spray environments. For food and beverage applications requiring frequent washdown, IP67 typically meets requirements.

Q6: What does 9-direction adjustable active face mean?

A: The active face (yellow face) of BI20-CP40-FZ3X2 can be adjusted to 9 different directions. Rectangular sensors usually have the active face on one side, but this sensor allows adjusting the internal induction coil orientation so the active face faces top, bottom, left, right, front, etc. — 9 directions total. This way, when installation space is limited, you can flexibly select the active face orientation without additional mounting brackets to adjust sensor direction, very convenient.

Q7: What is the lead time? Can you provide stock?

A: This model is currently in order available status, standard lead time 4-8 weeks (ordered from Turck Germany factory). If you have urgent needs, we can try to coordinate stock inventory or expedited ordering. Please indicate required quantity and desired delivery time when inquiring, and we will do our best to coordinate the fastest delivery solution. For large-volume project orders, advance procurement planning is recommended.

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