IEC 60309 420P7W to 420C7W 12/4 SOOW Black Extension Cables
19
configurations
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| Compare | Part number | Plug | Connector | Length | Jacket | Colour | Stock | Price | Add to order |
|---|---|---|---|---|---|---|---|---|---|
| 420P7W-420C7W-S4-120 | 420P7W | 420C7W | 10 Feet | 12 AWG · SOOW | Black | Build to order | Quote | ||
| 420P7W-420C7W-S4-180 | 420P7W | 420C7W | 15 Feet | 12 AWG · SOOW | Black | Build to order | Quote | ||
| 420P7W-420C7W-S4-240 | 420P7W | 420C7W | 20 Feet | 12 AWG · SOOW | Black | Build to order | Quote | ||
| 420P7W-420C7W-S4-300 | 420P7W | 420C7W | 25 Feet | 12 AWG · SOOW | Black | Build to order | Quote | ||
| 420P7W-420C7W-S4-360 | 420P7W | 420C7W | 30 Feet | 12 AWG · SOOW | Black | Build to order | Quote | ||
| 420P7W-420C7W-S4-420 | 420P7W | 420C7W | 35 Feet | 12 AWG · SOOW | Black | Build to order | Quote | ||
| 420P7W-420C7W-S4-480 | 420P7W | 420C7W | 40 Feet | 12 AWG · SOOW | Black | Build to order | Quote | ||
| 420P7W-420C7W-S4-540 | 420P7W | 420C7W | 45 Feet | 12 AWG · SOOW | Black | Build to order | Quote | ||
| 420P7W-420C7W-S4-600 | 420P7W | 420C7W | 50 Feet | 12 AWG · SOOW | Black | Build to order | Quote | ||
| 420P7W-420C7W-S4-660 | 420P7W | 420C7W | 55 Feet | 12 AWG · SOOW | Black | Build to order | Quote | ||
| 420P7W-420C7W-S4-720 | 420P7W | 420C7W | 60 Feet | 12 AWG · SOOW | Black | Build to order | Quote | ||
| 420P7W-420C7W-S4-780 | 420P7W | 420C7W | 65 Feet | 12 AWG · SOOW | Black | Build to order | Quote | ||
| 420P7W-420C7W-S4-840 | 420P7W | 420C7W | 70FT | 12 AWG · SOOW | Black | Build to order | Quote | ||
| 420P7W-420C7W-S4-900 | 420P7W | 420C7W | 75 Feet | 12 AWG · SOOW | Black | Build to order | Quote | ||
| 420P7W-420C7W-S4-960 | 420P7W | 420C7W | 80 Feet | 12 AWG · SOOW | Black | Build to order | Quote | ||
| 420P7W-420C7W-S4-1020 | 420P7W | 420C7W | 85 Feet | 12 AWG · SOOW | Black | Build to order | Quote | ||
| 420P7W-420C7W-S4-1080 | 420P7W | 420C7W | 90 Feet | 12 AWG · SOOW | Black | Build to order | Quote | ||
| 420P7W-420C7W-S4-1140 | 420P7W | 420C7W | 95 Feet | 12 AWG · SOOW | Black | Build to order | Quote | ||
| 420P7W-420C7W-S4-1200 | 420P7W | 420C7W | 100 Feet | 12 AWG · SOOW | Black | Build to order | Quote |
The plugs and connectors in this collection
What each end is, what it mates with, and where to find every cord built on it.

Plug · IEC 60309
IEC 60309 WC420P7W
- 20 Amps
- 480 volts 3-phase
On 19 of the cords here
The IEC 60309 420P7W is a 4 wire plug body rated for 480-500VAC and 20 Amps. The connector body is black for easy identification and is a waterproof industrial power connector.
Mates with IEC 60309 WC420R7W
You are on the IEC 60309 WC420P7W family page.

Connector
IEC 60309 WC420C7W
- 20 Amps
- 480 volts 3-phase
On 19 of the cords here
The IEC 60309 420C7W is a waterproof industrial connector body rated for 480-500VAC and 20 Amps. The connector body is black for identification and has 4 wires.
Mates with IEC 60309 WC420B7W
You are on the IEC 60309 WC420C7W family page.
About IEC 60309 420P7W to 420C7W 12/4 SOOW Black Extension Cables
World Cord Sets supplies iec 60309 420p7w to 420c7w 12/4 soow black extension cables from our East Windsor, Connecticut headquarters, with manufacturing across US and overseas facilities. Cords are tested and certified to spec before shipment. We stock 19+ configurations and build custom cords to order — hand-terminated builds from in-stock components typically ship in 3–4 business days. In-stock orders placed by 2:30 PM ET ship the same day from our Connecticut warehouse.
Current rating
20 Amps
Voltage rating
480 volts 3-phase
Plug (male end)
IEC 60309 WC420P7W
Connector (female end)
IEC 60309 WC420C7W
Certifications & compliance
- UL
- cUL
- RoHS
- REACH
- Every cord we build is hi-pot tested
- Same-day shipping by 2:30 PM ET
- NET 30/60/90 for approved accounts
- In-house engineering and compliance support
Frequently asked questions
- What certifications do these power cords carry?
- UL and cUL-listed cord sets across the catalog, with 30+ international approval marks (VDE, ENEC, PSE, SAA, CCC, KC and more) on country-specific cords. The approvals each part carries are listed on its product page; documentation is available from sales.
- Do you require a minimum order quantity?
- No. We sell from 1 cord to 100,000. Volume discounts apply automatically at quantity breaks — you'll see pricing tiers on every product page.
- Can I get a custom length or color?
- Yes. Custom lengths and non-standard colors are hand-terminated in our Connecticut shop — typically 3–4 business days from in-stock components. Call (860) 763-2100 or submit a quote request with your specs.
- How fast does this ship?
- In-stock orders placed by 2:30 PM ET ship the same day via FedEx or UPS. All standard configurations are stocked in East Windsor, CT.