RS PRO, Blue BNC Test Box

Fluke Test Box, 57.15mm Length, Blue - 2391

This test box is a Compact enclosure designed for signal testing with BNC connectors in demanding environments. It houses two BNC interfaces within a painted die-cast aluminium shielded housing and operates across a wide temperature range, making it suitable for field and laboratory use where robust electrical continuity and controlled impedance are required.

Features and Benefits:

• 500 VRMS operating voltage provides high-voltage handling capability
  50 ohm nominal impedance preserves signal integrity for RF measurements
  Gold-plated centre contacts improve conductivity and reduce contact resistance
  Tarnish-resistant connector bodies maintain long-term contact performance
  -55°C to +150°C temperature range supports extreme-environment use

Applications

• Suitable for portable signal verification with BNC cables
  Ideal for field diagnostics of RF and coaxial links
  Used for interfacing measurement equipment in test benches
  Can be used for routine continuity checks in maintenance workflows

What materials form the main enclosure and cover?

The shielded housing is die-cast aluminium alloy and the cover is 1.02 mm thick aluminium alloy with a clear anodised finish.

How are the connectors secured to the box?

Connectors use solder turret Terminal screws and the cover is fastened with four steel self-tapping pan-head screws.

What finishes protect the external surfaces?

The housing is finished with blue paint compliant with a federal colour reference and the cover has a clear anodised finish.

How are male and female contact types plated?

Female centre contacts are gold-plated beryllium copper and male contacts are gold-plated brass.