Lanbao LE40SZ-E2 Low-Temp 15/20mm M12 Inductive Sensor

Lanbao LE40SZ-E2 Low-Temp 15/20mm M12 Inductive Sensor

Lanbao LE40SZ-E2 Low Temperature Resistant Series is a square inductive proximity sensor with an M12 connector for non-contact metal detection in cold industrial environments, refrigeration equipment, outdoor machinery, conveyors, and automated control systems. The 40mm square PBT housing offers longer sensing distance than compact cylindrical sensors while supporting detachable connector wiring for easier replacement.

This listing covers LE40SZSF15W1-E2 and LE40SZSN20W1-E2 DC variants with 15mm flush or 20mm non-flush rated sensing distance. Depending on the selected part number, the sensor is available with NPN or PNP output and normally-open, normally-closed, or NO+NC logic.

For related Lanbao inductive sensors, compare the Lanbao LE40SZ-Y-E2 M12 Sensor, Lanbao LE40XZ-E2 M12 Sensor, and Lanbao LR12X Low-Temp Sensor. For larger low-temperature cylindrical options, see the Lanbao LR18X Low-Temp Sensor.

Technical Specifications

Brand	Lanbao
Series	LE40SZ-E2 Low Temperature Resistant Series
Product Series	Temperature extended series
Sensor Type	Square inductive proximity sensor
Body Size	40 x 40 x 66mm
Housing Material	PBT
Installation Options	Flush 15mm or non-flush 20mm, depending on selected variant
Rated Sensing Distance	15mm for LE40SZSF15W1-E2 variants; 20mm for LE40SZSN20W1-E2 variants
Assured Operating Distance	0-12mm for 15mm variants; 0-16mm for 20mm variants
Power Supply	10-30V DC
Output Type	DC 3-wire or 4-wire NPN / PNP, depending on selected variant
Output Logic	Normally open, normally closed, or NO+NC
Standard Target	Fe 45 x 45 x 1t for 15mm versions; Fe 60 x 60 x 1t for 20mm versions
Switching Frequency	300Hz for 15mm versions; 200Hz for 20mm versions
Switch-Point Drift	<=+/-10% of sensing distance reference
Hysteresis Range	1-20% of sensing distance reference
Repeat Accuracy	<=3% reference
Load Current Reference	<=200mA
Residual Voltage Reference	<=2.5V
Current Consumption Reference	<=15mA
Circuit Protection	Short-circuit, overload, and reverse-polarity protection reference
Output Indicator	Yellow LED
Operating Temperature	-40C to 70C
Operating Humidity	35-95%RH reference
Voltage Withstand	1000V AC 50/60Hz for 60s reference
Insulation Resistance	>=50MOhm at 500V DC reference
Vibration Resistance	10-50Hz, 1.5mm reference
Protection Rating	IP67 reference
Connection Type	M12 connector
Available Variants	LE40SZSF15DNOW1-E2, LE40SZSF15DNCW1-E2, LE40SZSF15DNRW1-E2, LE40SZSF15DPOW1-E2, LE40SZSF15DPCW1-E2, LE40SZSF15DPRW1-E2, LE40SZSN20DNOW1-E2, LE40SZSN20DNCW1-E2, LE40SZSN20DNRW1-E2, LE40SZSN20DPOW1-E2, LE40SZSN20DPCW1-E2, LE40SZSN20DPRW1-E2

Integration Notes & Hardware Guidance

• Temperature range: Use this W1 low-temperature version when the installation requires operation below the standard LE40SZ temperature range.
• Distance selection: Choose the LE40SZSF15W1-E2 flush version for 15mm sensing where surrounding metal clearance is limited, or the LE40SZSN20W1-E2 non-flush version for longer 20mm sensing distance.
• Output selection: Match NPN or PNP wiring to the input type of your PLC, controller, counter, or I/O module before ordering.
• Logic selection: Choose normally open, normally closed, or NO+NC based on the required signal state when a metal target is detected.
• Connector planning: This E2 version uses an M12 connector, so confirm cable type, pinout, and installation clearance before replacing a fixed-cable sensor.

Packing List

Item	Qty	Notes
Lanbao LE40SZ-E2 low-temperature inductive proximity sensor	1	Selected sensing distance, output type, and output logic variant
Original product packaging	1	Packaging may vary by shipment batch

FAQ

What does the LE40SZ-E2 low-temperature sensor detect?

It detects metal targets using inductive proximity sensing, without physical contact with the target.

What operating temperature range does this version support?

This low-temperature resistant version is listed with an operating temperature reference of -40C to 70C.

What sensing distances are available?

This listing includes 15mm flush variants and 20mm non-flush variants. Select the version that matches your mounting condition and detection distance.

How do I choose between NPN and PNP?

Choose the output type required by your controller input. NPN and PNP wiring are not interchangeable unless the receiving device supports both input standards.

What connection does this E2 version use?

The LE40SZ-E2 low-temperature series uses an M12 connector for detachable wiring and easier maintenance.