OVERVIEW

Official designation: Allen-Bradley 40BY1-4000 (Series 4000, Photoswitch Light Source)

Role/Application: This component is a stand-alone visible LED emitter designed for use with compatible photoelectric control modules, providing a stable light beam for sensing applications.

KEY SPECS SUMMARY

Power: 102 to 132V AC

Interfaces / Ports: 2 conductor cable

Indicators: Visible LED alignment

Operating Temp: 0 to 60 degrees C

Platform / Compatibility: Series 4000 and 5000

Limit: 40 foot operating distance

Lifecycle: Discontinued by manufacturer

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the standard wavelength of the light emitted by this light source?

A: The standard Series 4000 light sources typically use an infrared 940 nm LED or visible red 660 nm.

Wiring & Installation:

Q: What is the default length and type of the connecting cable supplied with the 40BY1-4000?

A: The light source comes standard with a 10 foot (3 meter) vinyl-jacketed, two conductor shielded cable.

Troubleshooting & Compatibility:

Q: Can this light source operate independently without a separate receiver module?

A: No, the 40BY1-4000 requires the companion 47BU1-4000 receiver module to complete the sensing circuit.

Replacement & Upgrades:

Q: Is there a general-purpose, modern alternative to replace the obsolete 40BY1-4000 light source?

A: Refer to the latest manufacturer manual for current generation two-piece transmitted beam sensor recommendations.