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Product Specifications:
| Item | Circuit-lock Watertight Mechanical Interlock Device |
| Accepts Plug Number | 3D138 |
| Amps | 20A |
| Circuit Breaker | No |
| Circuit Breaker Amps | 20A |
| Color | Blue |
| Compatible Plug Grainger Part Number | 3D138 |
| Compatible Plug Manufacturer Part Number | 3D138 |
| Electrical Connection Type | Pin And Sleeve |
| Exposure Conditions | Wateright |
| For Location | Indoor, Outdoor |
| Fuse Protection | Non-Fused |
| Grounding | Grounded |
| Housing Color | Blue |
| Housing Material | Thermoplastic |
| Hp | 5 hp |
| Hub | 1" |
| Hub Dia. | 1" |
| Included | Mounting Feet |
| Included Mounting Hardware | Yes |
| Ip Rating | IP67 |
| Locking Handle | Yes |
| Material | Thermoplastic |
| Max. Operating Temp. | 75°C |
| Max. Wire Size | 10 AWG |
| Min. Operating Temp. | -40°C |
| Min. Wire Size | 14 AWG |
| Mounting Style | Screw |
| Nema Enclosure Rating | Not Rated |
| No. Of Poles | 3 |
| No. Of Wires | 4 |
| Overall Height | 10.12" |
| Overall Width | 7 3/4" |
| Phase | 3 |
| Product Datasheet | hubbell-wiring-device-kellems-hbl420mi9w.pdf |
| Resistance Properties | Watertight |
| Reverse Service | No |
| Type | Pin And Sleeve, Unfused |
| Ul 94 Flammability Rating | V-0, 5 VA |
| Use With | 3D138 |
| Viewing Window | No |
| Voltage | 240V AC |
| Wattage | 5000 |
| Wire Size | 14 AWG to 10 AWG |
Shipping Info:
| Ship weight (kg) | 2.61 |
| Ship height (cm) | 25.7 |
| Ship length (cm) | 30.99 |
| Ship width (cm) | 19.69 |
| HS code | 8536908085 |
| Country of Origin | US |
Documentation:
Product Variants
| Product | Model | Voltage | Phase | Hp | Color | Amps | Wire Size | Use With | Hub | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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HBL420MI7W | 480V AC | 3 | 10 hp | Red | 20A | 14 AWG to 10 AWG | 6C125 | 1" | €1,992.12 | |
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HBL420MI5W | 600V AC | 3 | 10 hp | Black | 20A | 14 AWG to 10 AWG | 3D137 | 1" | €1,901.51 | |
![]() |
HBL420MI12W | 120/240V AC | 1 | 2 hp | Orange | 20A | 14 AWG to 10 AWG | 6C152 | 1" | €2,028.40 | |
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HBL430MIFS2W | 600V AC/250V DC | 1, 3 | 20 hp | - | 30A | 12 AWG to 8 AWG | 5HJ23 | - | €3,732.61 | |
![]() |
HBL460MIFS2W | 600V AC/250V DC | 1, 3 | 50 hp | - | 60A | 8 AWG to 2 AWG | 5HJ29 | - | €3,796.65 | |
![]() |
HBL430MIS2W | 600V AC/250V DC | 1, 3 | 20 hp | - | 30A | 12 AWG to 8 AWG | 5HJ23 | - | €2,002.12 | |
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HBL460MIS2W | 600V AC/250V DC | 1, 3 | 50 hp | - | 60A | 8 AWG to 2 AWG | 5HJ29 | - | €2,895.24 |
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Contact us
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We're available Monday through Friday, from 07:30 until 17:00.
HUBBELL WIRING DEVICE-KELLEMS HBL420MI9W Mechanically Interlocked Receptacle, 3 Pole, 250 VAC, 20 A
€2,034.54 /unit





