Schmersal T3K236-11Z-M20 position switch with safety function

The T3K 236-11Z-M20 is a compact and robust position switch featuring a roller lever as the actuation element. It is designed for safety-critical applications and complies with EN ISO 13849-1 and EN IEC 60947-5-1 standards. The switch includes one safety contact (NC) and one auxiliary contact (NO) that operate using the slow-action switching principle.

The housing is made of glass-fiber reinforced plastic, ensuring high stability and durability. With an IP65 and IP65 protection rating, the switch is protected against dust and temporary immersion in water.

The position switch offers a mechanical lifespan of at least 20 million switching cycles and supports actuation speeds ranging from 160 mm/min to 1 m/s. Its robust design and high-quality materials make it suitable for use in industrial machines and systems where reliable monitoring of door or position movements is required.

The electrical connection is made via a screw terminal M20 x 1.5, providing a secure and stable connection. The switch is rated for operating voltages up to 230 VAC and a thermal continuous current of 10 A.
Technical Data – T3K 236-11Z-M20:

Order Information:

Product Type Designation: T3K 236-11Z-M20
Article Number: 151161687

Approvals and Standards:

cULus
CCC
Standards: BG-GS-ET-15, EN ISO 13849-1, EN IEC 60947-5-1

Material and Weight:

Housing Design: Standard Form
Housing Material: Plastic, glass-fiber reinforced
Gross Weight: 55 g

Features:

Safety Functions: Yes
Number of Safety Contacts: 1
Number of Auxiliary Contacts: 1

Safety Assessment:

Standards: EN ISO 13849-1
Service Life: 20 years
B10D Value for NC Contacts: 20,000,000 switching cycles

Mechanical Data:

Actuation Element: Roller Lever
Minimum Mechanical Lifespan: 20,000,000 switching cycles
Minimum Actuation Force: 9 N
Minimum Positive Opening Force: 19 N
Actuation Speed:
Minimum: 160 mm/min
Maximum: 1 m/s
Note (Actuation Speed): Vertical approach angle of 30°

Connection Technology:

Connection Type: Screw Terminal M20 x 1.5
Wire Cross-Section:
Minimum: 0.75 mm²
Maximum: 2.5 mm²

Dimensions:

Sensor Length: 30 mm
Sensor Width: 35 mm
Sensor Height: 91.5 mm

Environmental Conditions:

Protection Rating: IP65 / IP65
Operating Temperature: -30 °C to +80 °C

Insulation Ratings:

Rated Insulation Voltage (Ui): 500 V
Rated Impulse Withstand Voltage (Uimp): 6 kV

Electrical Data:

Thermal Continuous Current: 10 A
Conditional Short-Circuit Current: 1,000 A
Voltage, AC-15 Category: 230 VAC
Current, AC-15 Category: 4 A
Voltage, DC-13 Category: 24 VDC
Current, DC-13 Category: 1 A

Switching Elements:

NO Contact
NC Contact
Switching Principle: Slow-Action Switching
Max. Contact Bounce Time: 3 ms
Max. Switching Frequency: 5,000 operations per hour

Contact Material:

Silver
Type: T3K236-11Z-M20