The NDLRT from K.A. Schmersal GmbH & Co. KG is a high-quality illuminated pushbutton designed for front panel mounting in hygiene-sensitive environments such as the food and pharmaceutical industries. It features a round shape with a distinctive red button surface. The chrome-plated silver bezel ring and white sealing bellow not only provide an attractive appearance but also ensure reliable sealing.

Thanks to its IP69K protection rating, the NDLRT is resistant to dust, water, and high-pressure cleaning, making it suitable for demanding industrial environments. The pushbutton is illuminatable, has full insulation, and offers comfortable operation with a 5 mm actuation travel and an actuation force of approximately 1.5 N.

The pushbutton has a mechanical lifespan of at least 1,000,000 switching cycles and can accommodate up to two contact elements. It is secured with a central nut and requires a tightening torque of 0.6 Nm. The installation diameter is 22.3 mm, and the height above the front panel is 11 mm.

The NDLRT complies with international safety standards such as EN IEC 60947-5-1 and EN IEC 60947-1. With its hygiene certification, it is ideal for use in applications requiring strict hygiene measures.

Technical Data (English):

Product Type Designation:

• NDLRT

Item Number (Order Number):

• 101163544

EAN (European Article Number):

• 4250116200474

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: Front Panel Mounting, Illuminated Pushbutton
• Shape: Round, Push-Action
• Mounting Conditions: Any Position
• Sealing Type: Lip Seals
• Actuator Material: Plastic
• Bezel Material: Chrome-Plated ABS
• Actuator Color: Red
• Bezel Color: Silver
• Seal Bellow Color: White
• Gross Weight: 40 g

Features:

• Illuminatable: Yes
• Mounting Flange: Yes
• Push-Action: Yes
• Full Insulation: Yes
• Maximum Number of Contact Elements: 2

Mechanical Data:

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

Dimensions:

• Height Above Front Panel: 11 mm
• Total Diameter: 44.5 mm
• Button Surface Diameter: 27 mm
• Bezel Diameter: 44.5 mm
• Installation Diameter: 22.3 mm
• Front Panel Thickness: Min. 1.5 mm, Max. 6 mm
• Grid Dimension: 50 x 50 mm

Environmental Conditions:

• Protection Rating: 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