OBO Bettermann 2003738 tappo di chiusura V-TEC M25, poliammide, grigio chiaro, confezione da 25

For sealing unused metric M25 knockouts in enclosures and junction boxes, the OBO Bettermann 2003738 V-TEC sealing plug offers a screw-in design that requires no additional locknut. Its polyamide body is halogen-free and UV-resistant, making it suitable for both indoor and outdoor installations where a clean, finished appearance is needed.

Highlights

• Metric M25 thread for standard knockout openings
• Tool-free installation with 30 mm hex head
• Light grey (RAL 7035) matches common enclosure colours
• Halogen-free polyamide with UL94 V-2 rating
• Supplied in a pack of 25 pieces

In daily use

The plug screws directly into the threaded entry, closing it securely and maintaining the enclosure's integrity. It withstands temperatures from -30 °C to +100 °C in operation and is rated IP68, ensuring reliable sealing even under demanding conditions.

Full specifications

• Product type: Sealing plug
• Thread type: Metric
• Nominal thread size: M25
• Material: Polyamide (PA)
• Colour: Light grey (RAL 7035)
• Protection class: IP68 (up to 10 bar)
• Operating temperature range: -30 to +100 °C
• Installation temperature range: -5 to +60 °C
• Halogen-free: Yes
• UV-resistant: Yes
• Flammability rating: UL94 V-2
• Glow wire test: 750 °C
• Impact resistance: IK08
• Wrench size: 30 mm
• Pack quantity: 25 pieces
• Manufacturer series: V-TEC

Final note

A practical choice for electricians and panel builders who need a reliable, easy-to-install sealing solution for unused conduit entries.