Server Technology PTCORD-L1 Locking C19 to L6-20P Power Cord

Overview

The Server Technology PTCORD-L1 is a 10-foot locking power cord that terminates an IEC 60320/C19 connector to an L6-20P twist-lock plug, built for 200-240VAC input at 20A. If you're feeding a rack PDU or server chassis from a 208V/240V twist-lock receptacle and want to rule out accidental disconnects under vibration or a snagged cable, PTCORD-L1 is the connector pair to specify. It's rated 12 AWG and carries cULus listing, which matters when the cord is running load in a commercial data hall or telecom closet where inspectors check for listed components.

Key Features

• Locking IEC 60320/C19 connector: the C19 end locks onto the PDU or server inlet instead of relying on friction fit — in a densely cabled rack where techs are reaching past dozens of cords to service one unit, a locking C19 means you don't accidentally unseat a neighboring server's power feed.
• L6-20P twist-lock plug: the wall or PDU-input end is a NEMA L6-20P twist-lock, so the cord locks into a compatible L6-20R receptacle rather than pulling free — the right call for under-floor or overhead cable runs where tension on the cord is a given, not an edge case.
• 200-240VAC rating: this cord is built for split-phase or three-phase-derived 208V/240V circuits common in commercial electrical distribution, not 120V branch circuits — confirm your upstream receptacle voltage before ordering since this cord won't step down or adapt.
• 20A amperage rating: matches the L6-20P plug's rated capacity, giving headroom for a fully loaded rack PDU pulling steady current without derating concerns on the cord itself.
• 12 AWG conductor gauge: heavier gauge than the 14-16 AWG found on lighter-duty IEC cords, which keeps voltage drop and heat buildup in check when you're running sustained 20A loads across the full 10-foot length.
• 10 ft (3m) length: long enough to route from a wall-mounted or floor-mounted L6-20R receptacle up through a rack's cable channel to a top-of-rack or mid-rack PDU without needing an extension — check your rack elevation and receptacle placement against this length before specifying.
• cULus certification: listed for use in the US and Canada, which is what facility inspectors and AHJs look for when signing off on a data center or telecom room build-out.

Integration & Compatibility

PTCORD-L1 (often searched as PTCORD L1) is a connector-specific cord — it pairs an IEC 60320/C19 female connector with an NEMA L6-20P male twist-lock plug, so compatibility runs both directions: the equipment side needs a C19 inlet (common on rack PDUs, UPS units, and higher-draw servers) and the source side needs an L6-20R twist-lock receptacle. This is a straightforward swap-in for any Server Technology PDU deployment or third-party gear sharing the same C19 inlet standard, and it's worth keeping a spare on hand in any rack where twist-lock power is the house standard — a loose or damaged whip cord is an easy single point of failure to overlook during a rack audit.

Frequently Asked Questions

Q: What voltage is the PTCORD-L1 rated for?

A: 200-240VAC. It is not intended for 120V circuits.

Q: What's the amperage rating on the PTCORD-L1?

A: 20A, matching the L6-20P plug rating.

Q: Is the PTCORD-L1 a locking cord on both ends?

A: The IEC 60320/C19 connector end locks into a compatible C19 inlet, and the L6-20P end is a twist-lock plug designed to secure into an L6-20R receptacle.

Q: What wire gauge does the PTCORD-L1 use?

A: 12 AWG.

Q: Is the PTCORD-L1 safety listed?

A: Yes, it carries cULus certification.

Q: How long is the PTCORD-L1?

A: 10 ft (3m).

Marty Allison

I get asked about locking power cords more than almost any other accessory in a rack build-out, and the PTCORD-L1 covers a specific gap: 20A, 200-240VAC service with a locking C19 on the load end and an L6-20P twist-lock on the source end.

Technical Highlights:

• 12 AWG conductors: heavier than what you'll find on standard-duty IEC whips, so voltage drop stays manageable across the full 10 ft run at 20A sustained load.
• 200-240VAC / 20A rating: sized to match the L6-20P plug's own rating — no derating math needed when you're speccing a rack PDU feed.
• cULus listing: the certification an AHJ or facility inspector actually checks for before signing off on a data center or telecom room build.

Deployment Considerations:

• Confirm the source receptacle is genuinely an L6-20R twist-lock before ordering — this cord won't mate with a standard NEMA 5-20 or L5-20 receptacle.
• At 10 ft, measure your actual run from receptacle to PDU inlet first; twist-lock cords aren't the kind of thing you want to extend with an adapter mid-rack.

This is the cord I'd specify for a colo cage or telecom closet standardizing on twist-lock 208V distribution, where the locking C19 keeps a fully-loaded rack PDU from getting knocked loose during routine service work.