
FEATURES / BENEFITS
a Roxboro Group Company
Features hi-flux LEDs to simulate point light source
for enhanced optical performance
Faster on/off response time than incandescent
lamps improves safety
Flicker resistance & reduced current draw
5+ year life reduces maintenance costs
Redundant LED circuits (single LED failure
does not turn off lamp)
Prevents sun phantom effects by eliminating use of
colored inner filter lenses
Designed to fit Safetran, US&S, GRS, and other
5 1/4 inch diameter transit wayside signal heads
Uses existing signal head outer lens
12 volt AC/DC and 120 Volt AC versions
Power factor correction & reduced THD
Certified for rail environment
Rear indicator for use by maintenance crew
AREMA Class A Compliant
APPLICATION
The 891 Series LED Wayside Signal Lamp Modules were developed by Dialight specifically for use in transit railroad, 5 1/4”
signals in retrofit applications where replacement of existing incandescent light bulbs is desired. This installation approach provides
all the benefits of LEDs without the complex retrofit of the entire lens and housing assemblies. Installation is nearly as simple as
replacement of the incandescent bulb. Dialight lamp modules have been fully qualified for the Rail environment and incorporate
power factor correction and total harmonic distortion reduction circuitry.
891 Series LED
51/4” WAYSIDE SIGNAL LAMP MODULE
With Rear LED Indicator and AREMA Terminal Block
MDTR891X001_C
Mechanical Dimensions in
inches and (millimeters)
Shown with mounting hardware
and AREMA terminal
Shown without wires for clarity.
Wires would come from the bottom
of the module and be connected to
the AREMA terminal block.
Dialight Corporation
1501 Route 34 South Farmingdale, NJ 07727 USA
Tel: (1) 732-919-3119 Fax: (1) 732-751-5778 www.dialight.com
AREMA TERMINAL BLOCK
Dialight is the recognized leader in LED
applications for transportation signaling, and
has worked cooperatively with leading transit
rail customers to develop this unique solution to
wayside signal applications for LEDs. It is
proven to be a preferred product over traditional
5mm LED distributed array solutions.