Federal Signal’s Model 27XST explosion-proof strobe light features a voltage in-rush limiting PCB design that provides greater compatibility with factory automation control systems and less electrical interference with in-rush sensitive devices.

Federal Signal’s Model 27XST has an effective candela (ECP) of 850 and a two million peak candela. Three mounting options are available:  pendant, ceiling or 90° wall mount. For easy installation, the mounting box is first installed and the fixture is then threaded onto the mounting box, making the electrical connection. Pre-install the mounting bracket, electrical continuity is made when five threads are engaged. 

Federal Signal’s Model 27XST is specifically designed for explosion-proof atmospheres and/or corrosive environments. Because it is easy to install and requires very low maintenance, it is ideal for use in areas such as oil rigs, mines, refineries, and chemical plants.


Monitoring Resistors Optional 3/4" Pendant Mount Kit
Optional Wall Mount Kit
Optional Ceiling Mount Kit
Voltage 24VDC
120VAC 50/60Hz
Operating Current 24VDC: 1.90 Amps (3.0 Amp In-rush)
120VAC: 1.14 Amps
Light Source/Lamp Style Strobe Tube
Lamp Life 10,000 Hours
Flash Rate/Minute 80
Peak Candela 2000000
Effective Candela 850
Operating Temperature Range -67˚F (-55˚C) to 150˚F (65˚C)
Enclosure Rating Type 4X
Ingress Protection (IP) IP66
Dome Guard Sold Separately
Dome Colors Amber
Net Product Weight
Signal without Mounting 13.9 lbs
Ceiling Mount 4.5 lbs
Pendant Mount 2.0 lbs
Wall Mount 5.9 lbs


IP69K Compliant Products Video (1:33)

Ordering Information

Model Types
Model Description UPC
27XST-024A-MOD Explosion-proof strobe, modular, in-rush limited, 24VDC, amber 782979232490
27XST-024B-MOD Explosion-proof strobe, modular, in-rush limited, 24VDC, blue 782979232506
27XST-024C-MOD Explosion-proof strobe, modular, in-rush limited, 24VDC, clear 782979232513
27XST-024G-MOD Explosion-proof strobe, modular, in-rush limited, 24VDC, green 782979232520
27XST-024M-MOD Explosion-proof strobe, modular, in-rush limited, 24VDC, magenta 782979232537
27XST-024R-MOD Explosion-proof strobe, modular, in-rush limited, 24VDC, red 782979232544
27XST-120A-MOD Explosion-proof strobe, modular, 120VAC, amber 782979232568
27XST-120B-MOD Explosion-proof strobe, modular, 120VAC, blue 782979232575
27XST-120C-MOD Explosion-proof strobe, modular, 120VAC, clear 782979232582
27XST-120G-MOD Explosion-proof strobe, modular, 120VAC, green 782979232599
27XST-120M-MOD Explosion-proof strobe, modular, 120VAC, magenta 782979232605
27XST-120R-MOD Explosion-proof strobe, modular, 120VAC, red 782979232612
27XST-240A-MOD Explosion-proof strobe, modular, 240VAC, amber 782979233435
27XST-240B-MOD Explosion-proof strobe, modular, 240VAC, blue 782979233442
27XST-240C-MOD Explosion-proof strobe, modular, 240VAC, clear 782979233459
27XST-240G-MOD Explosion-proof strobe, modular, 240VAC, green 782979233466
27XST-240M-MOD Explosion-proof strobe, modular, 240VAC, magenta 782979233473
27XST-240R-MOD Explosion-proof strobe, modular, 240VAC, red 782979233480
Replacement Parts
Description Part Number UPC
Dome Assembly, Explosion-Proof Light, Black K8436147A 782979128052
Dome, Amber K8550C095A-02 782979112129
Dome, Blue K8550C095A-01 782979112112
Dome, Clear K8550C095A 782979112105
Dome, Green K8550C095A-04 782979112143
Dome, Magenta K8550C095A-07 782979114345
Dome, Red K8550C095A-03 782979112136
24V Mechanism K8436107F-03 782979123873
120V Mechanism K8436107E-02 782979121107
Strobe Tube K8107159A 782979112372