A row of IEC C13 and C19 outlet bodies on a rack PDU under one raking light, the sockets held to the right of the frame while the left side stays in clean shadow

Engineering note · outlets

C13 vs C19: choosing outlet combinations

The outlet mix sets how many plugs one chassis can carry. A 10A C13 branch and a 16A C19 branch are different ratings, and the feed behind them is a third number again.

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Example mix: C19 × 4 + C13 × 36
C13 branch: 10A
C19 branch: 16A
Input / output: 10A–32A / 10A–16A
Supply: 110V~250V AC

Selection figures

The numbers an outlet combination is built from

Outlet rating, feed size and monitoring depth are three separate rows. Each one is published for the series.

Outlet, feed and wiring figures published for the series
Item	Published value	How it shapes the row
C13 branch rating	10A	The current one IEC C13 outlet is rated for
C19 branch rating	16A	The current one IEC C19 outlet is rated for
Combination example	C19 × 4 + C13 × 36	A mixed outlet row on one chassis
Input current	10A–32A	The feed the unit is ordered against
Output current	10A–16A	The branch rating at each outlet
Working voltage	110V~250V AC	The supply the unit is wired to
Frequency	50Hz~60Hz	The supply band at the rack
Conductors	VDE 2.5mm² / 6mm²	Internal wiring gauge inside the unit
Connection	copper busbar	How an outlet branch reaches the feed
Monitoring depth	per feed · per outlet	Which outlet a reading can be attributed to
Metering accuracy	±1% + 1 digit	Current, voltage and active power
Energy total	1 grade · 0.1 kWh	The billing row on each reporting line
Remote switching	per outlet or per group	On switched builds, addressed over the network
Mounting	vertical / zero-U · horizontal / 1U	The chassis orientation in the rack
Electrical testing	100% of units	Every unit is tested before it leaves the line

Row build

What the mix decides on one chassis

C13 outlets10A each
C19 outlets16A each
C19 outletsexample: 4
Feed10A–32A
Outlet attributionper outlet

Mechanism

Count the plugs before the amps

An outlet combination is a count set against a rating. The chassis is built with a mix such as C19 × 4 + C13 × 36, and the feed behind that mix is rated separately from any single outlet.

A C13 branch carries 10A and a C19 branch carries 16A, while the input to the same chassis is ordered anywhere from 10A to 32A. The gap between those figures is the point: a feed rated above the sum of the outlets on it lets a row run below its breaker while the equipment still draws what it needs. Monitoring depth decides what can be attributed afterwards — total current per feed, or current per outlet on switched builds. Conductors inside the unit are specified as VDE 2.5mm² or 6mm², taken to a copper busbar.

Example mix: C19 × 4 + C13 × 36
C13 / C19: 10A / 16A
Feed: 10A–32A
Branch: 10A–16A

The rating belongs to the outlet. A C13 branch is a 10A branch and a C19 branch is a 16A branch, whatever the feed is rated at.
The feed is a separate number. Input current is ordered from 10A to 32A, and the breaker sits at the feed.
Attribution needs per-outlet metering. Total current per feed at 0.1A is the default; per-outlet readings identify which unit drew it.

A rack PDU in a dark equipment aisle with the IEC outlet rank and the copper busbar behind it lit from the upper left, the rack rails falling out of focus — C13 10A · C19 16A · feed 10A–32A · busbar

Selection set

One cell per figure the mix is checked against

Every value here comes from the same published set the quotation is written from.

C13 branch 10A One IEC C13 outlet, for servers and network gear.

C19 branch 16A One IEC C19 outlet, for higher-draw equipment.

Input current 10A–32A The feed the chassis is ordered against.

Output current 10A–16A The branch rating at each outlet position.

Working voltage 110V~250V AC The supply the unit is wired to at the rack.

Frequency 50Hz~60Hz The supply band the unit is built for.

Conductors 2.5mm² / 6mm² VDE internal wiring, on a copper busbar.

Example mix C19 × 4 + C13 × 36 A mixed row on one chassis, in one of two orientations.

Outlet combination, current per feed and mounting orientation are the three lines the quotation is built from. 100% electrical testing is carried out on each unit.

Request a quote

Send the plug mix and the feed size

Name the outlet combination and the current per feed. The reply carries the outlet row, the branch ratings and a per-line specification sheet, in English.

Request a quote Open the full request page

Reply within 12 hours on working days. No lead time and no minimum quantity figure is published on this site.