Johnson Controls T-4000-611 Bakelite Back Adaptor Overview
The Johnson Controls T-4000-611 is a Bakelite Back Adaptor engineered for use with dual temperature vertical or horizontal instruments equipped with two pipehead adaptors. Designed for reliable compatibility and long-lasting performance, this adaptor is an essential component for maintaining and installing Johnson Controls instrumentation in commercial HVAC and building automation applications.
Key Features
- Bakelite construction for durability and electrical insulation
- Compatible with dual temperature instruments in both vertical and horizontal orientations
- Designed for use with instruments featuring two pipehead adaptors
- Genuine Johnson Controls replacement part for assured fit and performance
- Ideal for commercial HVAC and building automation system applications
Application
The T-4000-611 back adaptor is used to mount and connect Johnson Controls dual temperature instruments — whether oriented vertically or horizontally — to piping systems via two pipehead adaptors. Its Bakelite material provides excellent resistance to heat and electrical conductivity, making it well-suited for demanding mechanical room and control panel environments.
Product Details
- Brand: Johnson Controls
- SKU: T-4000-611
- Material: Bakelite
- Instrument Orientation: Vertical or Horizontal
- Pipehead Adaptors: Two (2)
- Application: Dual Temperature Instruments








