Federal Signal's Model 27XST-024*-4-MOD explosion-proof supervised strobe light produces 80 high-intensity flashes per minute. This warning light operates on 24VDC and is unique to the market because it covers an entire range of possible mounting configurations - including dome up.

Model 27XST-024*-4-MOD is UL Listed for Class I, Division 1, Groups C and D; Class II, Division 1, Groups E, F and G; Class I, Division 2, Groups A, B; and Class III. It is UL and cUL listed, and Marine Rated.

The 24VDC 27XST-024*-4-MOD 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. Model 27XST-024*-4-MOD is Type 4X rated; constructed to IP66. Corrosion resistance is achieved with a powder coat finish applied over the copper-free aluminum housing.

Model 27XST-024*-4-MOD has an effective candela (ECP) of 850 and a two million peak candela. The model can be paired with a pendant, ceiling or 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. Electrical continuity is made when five threads are engaged.

Model 27XST-024*-4-MOD 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.


Mount Optional Ceiling Mount Kit
Optional Pendant Mount Kit
Optional Wall Mount Kit
Voltage 24VDC
Operating Current 1.90 Amps (3.0 Amp In-rush)
Light Source/Lamp Style Strobe Tube
Lamp Life 10,000 Hours
Flash Rate/Minute 80
Peak Candela 2000000
Effective Candela 850
Operating Temperature Minimum -67 °F
Operating Temperature Maximum 150 °F
Enclosure Rating Type 4X
Enclosure Rating IP66
Dome Guard Sold Separately

Ordering Information

Model Types
Model Description UPC
27XST-024A-4-MOD Explosion-proof strobe, modular, in-rush limited, 24VDC 4-wire, amber 78297923303
27XST-024B-4-MOD Explosion-proof strobe, modular, in-rush limited, 24VDC 4-wire, blue 78297923304
27XST-024C-4-MOD Explosion-proof strobe, modular, in-rush limited, 24VDC 4-wire, clear 78297923305
27XST-024G-4-MOD Explosion-proof strobe, modular, in-rush limited, 24VDC 4-wire, green 78297923306
27XST-024M-4-MOD Explosion-proof strobe, modular, in-rush limited, 24VDC 4-wire, magenta 78297923307
27XST-024R-4-MOD Explosion-proof strobe, modular, in-rush limited, 24VDC 4-wire, red 78297923308
CMXC-SB Mounting kit, ceiling, 27XST/XL and 121X, Series B 782979229513
PMXC-SB Mounting kit, pendant, 27XST/XL 782979231189
WMXC-SB Mounting kit, 90° wall, 27XST/XL and 121X, Series B 782979229490
Product # Description UPC
DGXC-SB Dome Guard 78297922953
Replacement Parts
Description Part Number UPC
Dome assembly, explosion-proof light, black K8436147A 782979200352
Dome, amber K8550C095A-02 782979218159
Dome, blue K8550C095A-01 782979401957
Dome, clear K8550C095A 782979250302
Dome, green K8550C095A-04 782979218234
Dome, magenta K8550C095A-07 782979237105
Dome, red K8550C095A-03 782979218166
24V Mechanism K8436107F-03 782979200116
Strobe tube K8107159A 782979200277