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The Add-A-Shroud devices allow
conversion of existing 20 and 30A 3 to 5 Wire Hubbell Insulgrip®
Twist-Lock devices to a Safety-Shroud Twist-Lock plug. These devices
provide convenient and cost-effective way to convert existing
Hubbell Insulgrip Twist-Lock Plugs to Safety-Shroud Twist-Lock
plugs.. The Safety-Shroud Twist-Lock plug permits engagement with
the Hubbell Mechanical Interlock Enclosure which virtually pervents
make and break under load.
Box Adaptability
The Safety-Shroud Twist-Lock
single-gang receptacles were designed to mount in virtually all
standard and FS/FD type boxes, allowing easy conversion of existing
NEMA locking receptacles to Safety-Shroud Twist-Lock Receptacles.
The semi-flush receptacles install in (RACO type 242/255) boxes,
with ½ raised 2 device mount covers (RACO type 778/841) and a 2 gang
FD type box. Standard 4" and 4 11/16" square boxes 2 1/8" deep.
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| Hubbell Wiring Device-Kellems Product
Specifications |
| Device Type |
Accessories |
| Device Style |
Twist-Lock |
| Twist-Lock Accessory
Type |
Add-A-Shroud |
| For Use With |
20/30 Amp 4 and 5 Wire
Twist-Lock Plugs |
| Color |
 |
| Flammability |
UL 94 VO for Receptacles and
Inlets. HB or better for Plugs and Connectors. |
| Operating Temperatures |
Maximum Continuous 75 C Minimum
-40 C (w/o impact) |
| Plugs Converted |
|
Voltage
Rating |
NEMA
Number |
Hubbell Plug
Catalog No. |
| 20A, 3 Pole 4 Wire Grounding |
125/250 |
L14-20 |
HBL2411 |
| 3Ø250V AC |
L15-20 |
HBL2421 |
| 3Ø480V AC |
L16-20 |
HBL2431 |
| 30A, 3 Pole 4 Wire Grounding |
125/250 |
L14-30 |
HBL2711 |
| 3Ø250V AC |
L15-30 |
HBL2721 |
| 3Ø480V AC |
L16-30 |
HBL2731 |
| 3Ø600V |
L17-30 |
HBL2741 |
| 20A, 4 Pole 5 Wire Grounding |
3ØY 120/208V AC |
L21-20 |
HBL2511 |
| 30A, 4 Pole 5 Wire Grounding |
3ØY 120/208V AC |
L21-30 |
HBL2811 | |
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