The NDTWS from K.A. Schmersal GmbH & Co. KG is a high-quality pushbutton with hygiene certification, specially designed for use in hygiene-sensitive areas such as the food, pharmaceutical, and chemical industries. Its round push-action design ensures ease of use, and with a protection rating of IP67 and IP69K, the pushbutton is well protected against dust, water, and high-pressure cleaning.

The actuator is made of durable white ABS plastic, and the bezel ring is made of chrome-plated ABS. The pushbutton features membrane and lip seals, providing additional protection against the ingress of liquids and contaminants. With an actuation travel of 5 mm and an actuation force of approximately 1.5 N, the NDTWS offers precise and comfortable operation.

The pushbutton has a mechanical lifespan of at least 1,000,000 switching cycles, making it a long-lasting solution for various control and operating applications. The NDTWS supports up to three contact elements and is mounted using an EFM mounting flange. The installation diameter is 22.3 mm, and the height above the front panel is 11 mm.

Due to its full insulation and robust construction, the pushbutton is suitable for demanding environments with high hygiene requirements. It can be used in any mounting position and is highly resistant to shock and vibration.

Technical Data (English):

Product Type Designation:

• NDTWS

Item Number (Order Number):

• 101158163

EAN (European Article Number):

• 4250116200047

eCl@ss Number:

• Version 12.0: 27-37-12-10
• Version 11.0: 27-37-12-10
• Version 9.0: 27-37-12-10

ETIM Number:

• Version 7.0: EC000221
• Version 6.0: EC000221

Approvals:

• cULus
• Hygiene Approved

General Data:

• Standards: EN IEC 60947-5-1, EN IEC 60947-1
• Design: Pushbutton
• Shape: Round, Push-Action
• Mounting Conditions: Any Position
• Sealing Type: Membrane, Lip Seals
• Actuator Material: ABS
• Cap Material: Plastic
• Bezel Material: Chrome-Plated ABS
• Actuator Color: White
• Bezel Color: Silver
• Seal Bellow Color: White
• Gross Weight: 25 g

Features:

• Mounting Flange: Yes
• Push-Action: Yes
• Full Insulation: Yes
• Maximum Number of Contact Elements: 3

Mechanical Data:

• Release: None
• Mechanical Lifetime: Min. 1,000,000 Switching Cycles
• Actuation Travel: 5 mm
• Actuation Force: Approx. 1.5 N
• Mounting Type: EFM Flange
• Tightening Torque: 0.6 Nm

Dimensions:

• Height Above Front Panel: 11 mm
• Actuator Diameter: 44.5 mm
• Bezel Diameter: 44.5 mm
• Installation Diameter: 22.3 mm
• Front Panel Thickness: Min. 1 mm, Max. 6 mm
• Grid Dimension: 50 x 50 mm

Environmental Conditions:

• Protection Rating: IP67, IP69K
• Operating Temperature: -25 ... +80 °C
• Shock Resistance: 30 g / 18 ms
• Vibration Resistance: 20 g / 10 ... 150 Hz

Electrical Data:

• Maximum Switching Frequency: 1,000/h