OVERVIEW

Official designation: Allen-Bradley 855T-B24FN3 (Bulletin 855T, Flashing Incandescent Light Module)

Role/Application: This 70 millimeter flashing incandescent light module with a green lens provides crucial visual status indication for industrial machinery and operational monitoring within a Control Tower stack.

KEY SPECS SUMMARY

Power: 24 Volts AC/DC Full Voltage

Interfaces / Ports: Internal terminal blocks

Indicators: Flashing Incandescent, Green lens

Operating Temp: Minus 25 degrees C to plus 70 degrees C

Platform / Compatibility: 70 millimeter Bulletin 855T Stack Lights

Limit: 271 milliampere maximum current draw

Lifecycle: Discontinued by manufacturer 10/1/2019, Series C

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the typical flashing frequency and brightness of the 855T-B24FN3 module?

A: The module flashes at approximately 2 Hertz with a brightness of 31.4 Lumens.

Wiring & Installation:

Q: What is the recommended wire size and terminal torque for wiring this module?

A: Recommended wire size is 0.5 millimeter squared with a terminal torque of 0.8 Newton meters.

Troubleshooting & Compatibility:

Q: What is the maximum leakage current this light module can absorb without activation?

A: The module can absorb up to 3 milliamperes of leakage current from solid state outputs.

Replacement & Upgrades:

Q: What are the ingress protection ratings and housing material for the light module?

A: The light module has an ingress protection rating of IP65/UL Type 4/4X/13 and a polycarbonate housing.