NEMA L21-20
NEMA L23-20
NEMA L22-20
4-Pole 5-Wire Grounding; 20 Amp 120/208V 3ØY; 20 Amp 277/480V
3ØY; 20 Amp 347/600V 3ØY, Locking Devices
Features - Specifications
72120FR
Internal “self-centering”
Quad-Gripper cord grip with “radius teeth”
design
Double wall construction
EPDM dust seal surrounds cord to help
prevent moisture and contaminants from
entering wiring chamber
Captive terminal screws are
backed out to simplify wiring
Combination Phillips/slotted
terminal and assembly screws
MALE BASE AND FEMALE EQUIPMENT
RECEPTACLE
SINGLE FLUSH RECEPTACLE
Face molded of impact/
chemical-resistant nylon
Base molded of reinforced
thermoplastic polyester
Combination back and side
wiring, clamp-type terminals;
accept #14 thru #8 AWG solid or
stranded conductors
One-piece rivetless
copper-alloy contact design
Heavy-duty mounting straps
are nickel-plated to resist
corrosion
PLUG, CONNECTOR AND MALE BASE
UL Listed File #E1381 – Guide #AXUT
CSA Certified File #LR16215 –Guide #20T2
SINGLE AND FEMALE
EQUIPMENT RECEPTACLE
UL Listed File #E2258 – Guide #RTRT
CSA Certified File #LR16215 –Guide #365E1
ALL LOCKING DEVICES
Comply with NEMA Standards WD-1, WD-6
and UL 498. See page P-1 for Federal
Specification Listing.
NOM
CE
Impact/chemical-resistant
toughened nylon construction
Transparent terminal cover
and extended “tear-drop”
wiring pockets
Combination Phillips/slotted
terminal screws are backed out to
simplify wiring
PLUG AND CONNECTOR
Impact/chemical-resistant
toughened nylon construction
LOCKING DEVICES
72120NP
L21-20
20 AMP
120/208V 3ØY
72120FR
72120IG
CATALOG NUMBER
L22-20
20 AMP
277/480V 3ØY
72220FR
—
72120NP
72120NPB
72120NPC
72120NC
72120NCB
72120NCC
72120MB
72120ER
72220NP
—
—
72220NC
—
—
72220MB
72220ER
L23-20
20 AMP
347/600V 3ØY
72320FR
—
72320NP
—
—
72320NC
—
—
72320MB
72320ER
CORD DIA.
DESCRIPTION
—
—
Single flush receptacle, black nylon
Single flush receptacle, orange nylon,
isolated ground
Plug, black nylon
Plug, black/white nylon
Same as above w/Robertson screws
Connector, black/white nylon
Connector, black nylon
Same as above w/Robertson screws
Male base, white nylon cup
Female equipment receptacle, white
nylon cup
.465-1.150
.465-1.150
.465-1.150
.465-1.150
.465-1.150
.465-1.150
—
—
INDOOR AND OUTDOOR RECEPTACLE PLATES
72120NC
CATALOG NUMBER
S6111
S28111
N01111
7420B
DESCRIPTION
Type 302/304 stainless steel, smooth, single-gang
.040 (1.0) brass, smooth, single-gang
Black nylon, smooth, single-gang
Die cast aluminum, with cover, single-gang, box mount
WEATHER PROTECTIVE BOOTS
CATALOG NUMBER
BLACK
YELLOW
72002BPB
72002BP
72002BCB
72002BC
72002BSRB
72002BSR
PRODUCT DIMENSIONS – (
1.70
(43.1)
72120MB
2.38
(60.5)
6 x 32
TAP
1.56
3.28 (39.6)
(83.3) DIA.
DESCRIPTION
Neoprene boot for use with plug
Neoprene boot for use with connector
Neoprene connector sealing ring
) Indicates mm dimensions
1.24
(31.5)
.26
(6.6)
2.68 DIA.
(68.1) Bolt Circle
2.13 DIA.
(54.0)
1.83 DIA.
(46.5)
3.06
(77.8)
2.85
(72.3)
MAX
2.67
(67.8)
.20 DIA.
(5.1)⑤
3.90
(99.0)
MAX
2.03
(51.5)
1.83 DIA.
(46.5)
72120ER
H
43
72120FR
72120NP
See Section G for more information on isolated ground devices.
.465-1.150 (11.8-29.2)
See Section M & N for more information on plates.
See page I-17 for more information on boots.
2.13 DIA.
(54.0)
72120NC
2.16
(54.9)
72120MB & 72120ER
Three holes spaced 120 deg. apart on 2.68 (68.1) diameter
bolt circle.
See page P-3 for horsepower ratings.
Specifications are subject to change without notice.
Product Features
Locking Devices
Flush Receptacles and Equipment Devices
Heavy-duty mounting straps are nickel-plated to resist
corrosion. Wide width design assures secure
assembly.
NEMA line number and rating are
molded into face for easy
identification
Face is molded of
high-impact nylon to resist
breakage
Space-saving design allows
more room in box for wiring
Both mounting straps are
grounded for safe
installations
Combination back
and side wiring
terminals accept
#14 thru #8 AWG
solid or stranded
conductors
Captive terminal screws are
deep slotted for easy
installations
Captive, combination
Phillips/slotted
mounting screws
Base is molded of rugged reinforced
thermoplastic polyester to minimize
heat buildup and resist breakage
High strength #10 bronze terminal
screws resist corrosion and provide
secure terminations
Thick wall construction provides
terminal isolation and strong
support for current-carrying parts
UL Listed
CSA Certified
Complies with NEMA Standards
WD-1, WD-6, and UL 498
Verified under Federal Specification
WC596F (where applicable)
NOM
CE
One-piece, rivetless copper-alloy
contact design reduces heat buildup
and provides secure blade retention
70520FR
Impact/chemical resistant toughened nylon construction
Configuration-specific plug face surrounds
blades to help prevent infiltration of contaminants
70520MB
Specifications are subject to change without notice.
Combination Phillips/slotted head
terminal screws for versatile wiring
Isolated
Ground
Corrosion
Resistant
Amperage, voltage and NEMA line number imprinted on face for easy identification
Transparent terminal cover, extended
“tear-drop” wiring pockets and backed out “captive”
terminal screws simplify wiring
70520ER
H
2