FEDERAL SIGNAL CORPORATION
Explosion-Proof
Rotating Light
Model 121X
(Shown with pendant mount. See how to order for mounting options)
DESIGNED FOR USE
IN EXPLOSION-PROOF
ATMOSPHERES
Federal Signal’s Model 121X rotating light flashes 90 times per
minute and produces a 360° visual signal. This explosion-proof
light has an incandescent lamp and is available in five lens colors:
Amber, Blue, Clear, Green and Red. Model 121X is unique to the
market because it covers an entire range of possible mounting
configurations – including dome up.
The Model 121X is UL Listed for Class I, Division 1 and 2, Groups C
and D; Class II, Division 1, Groups E, F and G; and Class III. The 121X
is UL and cUL listed, Marine Rated and constructed to Type 4X, IP66
standards.
• Approved for mounting in any
manner-including dome up
This corrosion-resistant unit’s copper-free aluminum housing is
finished with a powder coat.
• Available in 24VDC and 120VAC
The 121X uses a synchronous motor to drive a parabolic reflector
around an incandescent lamp. This results in a 360° rotating beam
which is concentrated in a horizontal plane.
• Five lens colors
• ¾" NPT pendant, ceiling and wall
mount options available
• Optional dome guard
• Type 4X, IP66 enclosure
• UL and cUL Listed,
and Marine Rated
The 121X features a spring clip-mounted lens for quick access when
inspecting or relamping. The 121X can be paired with a pendant,
ceiling or wall mount. Installation is simple–with the mounting box
in place, the fixture is threaded onto the mounting box, making the
electrical connection.
Federal Signal’s rugged 121X Warning Light is designed for
explosion-proof applications and/or corrosive environments. It is
ideal for use in indoor and outdoor areas such as oil rigs, mines,
refineries, and chemical plants.
Model
Voltage
Operating Flash Rate/
Current MinuteCandela
121X-024 * -MOD1
24VDC
1.05 amps
90
2,350
121X-120 * -MOD 120VAC 60Hz
0.33 amps
90
1,800
1
* Indicates color: (A) Amber, (B) Blue, (C) Clear, (G) Green or (R) Red
1
See "how to order" for mounting options.
Hazardous Location Rating:
5
WA
T-Code at Maximum Ambient Temperature, °C
Hazardous Location
40°C
yyr
RRANT
Y
Class I, Div 1, Groups C & DT6
Class II, Div 1, Groups E, F & G
T5
Class III
T5
EXPLOSION-PROOF ROTATING LIGHT (121X)
Cast Aluminum
Corrosion-Resistant
Explosion-Proof
Housing
Motor
Lamp
A
6.92"/176 mm
ø8.82"/ 224 mm
14.81"/ 376 mm
10.41"/ 264 mm
Wall
Mount
Bracket
15.48"/ 393 mm
14.54"/ 369 mm
3/4"
NPT
ø8.80"/ 224 mm
SPECIFICATIONS
Lamp Life:
Light Source:
Operating Temperature Range:
Net Product Weight
Signal without Mounting:
Ceiling Mount:
Pendant Mount:
Wall Mount:
4X
3/4"
NPT
4X
0.31"
8mm
Glass Dome
Pendant
Mount
A
0.30"/8 mm
View A-A
14.26"/ 362 mm
Ceiling
Mount
11.37"/ 289 mm
Standard
Incandescent
Model
0.38"/10 mm A
4X 3/4" NPT
1-1/4" NPT
2X
ø0.27
[ø7]
6.03"/
ø153mm
Min. bolt
circle
A
View A-A
4.63"/
117 mm
Min. bolt
circle
5.25"/133 mm
800 Hours
Incandescent
-67ºF to 150ºF
800 Hours
Incandescent
-55°C to 65°C
13.9 lbs
4.5 lbs
2.0 lbs
5.9 lbs
6.3 kg
2.0 kg
0.9 kg
2.7 kg
HOW TO ORDER
Light and Mounting Kit must be
ordered together.
1. Specify model, voltage and color
2. Specify Mounting Kit
Ceiling Mount (CMXC-SB)
Pendant Mount (PMXC-SB)
Wall Mount (WMXC-SB)
• Optional Accessories:
Dome Guard (DGXC-SB)
• Please refer to Model Number Index
121X beginning on page 353
REPLACEMENT PARTS
Description
Exterior Dome Assembly, Clear
Lamp, 24VDC
Lamp, 120VAC
24VDC Mechanism and Amber Lens Kit
24VDC Mechanism and Blue Lens Kit
24VDC Mechanism and Clear Lens Kit
24VDC Mechanism and Green Lens Kit
24VDC Mechanism and Red Lens Kit
Part Number
K8436147A
K8107A041
K8444A173A
K8444269A
K8444269A-01
K8444269A-02
K8444269A-03
K8444269A-04
2645 Federal Signal Dr., University Park, IL 60484 Tel: 708.534.4756
Description
120VAC Mechanism and Amber Lens Kit
120VAC Mechanism and Blue Lens Kit
120VAC Mechanism and Clear Lens Kit
120VAC Mechanism and Green Lens Kit
120VAC Mechanism and Red Lens Kit
Fax: 708.534.4852
www.federalsignal-indust.com
Part Number
K8444277A
K8444277A-01
K8444277A-02
K8444277A-03
K8444277A-04
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