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Vertical black metal rack PDU with 21 C13 and 3 C19 outlets and a NEMA L21-20P plug

APC

APC AP8661 Switched Metered 0U PDU 208V 20A 21C13 3C19

SKU CH-M5JB-MT44C MPN AP8661

A switched, metered 0U rack PDU delivering 208 V power through twenty-one C13 and three C19 outlets with individual outlet metering and remote on/off control

  • TypeSwitched, Metered
  • Rack Size0U
  • StyleRackmount
  • CertificationscUL Listed, FCC Part 15 Class A, ICES-003, UL Listed, VCCI C
  • ROHSYes
  • Input Voltage208V
  • Switched outlet control enables remote reboot of locked equipment
  • Metered-by-outlet monitoring provides per-port power visibility
  • 21 C13 and 3 C19 outlets support dense rack deployments
  • 0U vertical form factor preserves horizontal rack space
  • 208V 20A input delivers up to 5.7 kW capacity

Rackmount Switched Metered PDU

The APC AP8661 is a 0U rackmount power distribution unit that provides switched, metered-by-outlet control for data-centre and server-room deployments. It delivers 208V three-phase power through 21 IEC 320 C13 outlets and 3 IEC 320 C19 outlets, allowing remote power cycling and per-outlet energy monitoring for connected IT equipment.

Input connection and derated current check

Verify that the facility provides a 208V 50/60 Hz three-phase supply with a NEMA L21-20P receptacle and that the branch circuit can support the 20A maximum input current. The regulatory derated input current is 16A, so the upstream breaker and wiring must be rated accordingly to avoid nuisance tripping.

Zero-U vertical mounting and environmental limits

The 0U form factor mounts vertically in a standard rack enclosure without consuming horizontal rack units, freeing space for servers and network gear. A 6 ft input cord reaches nearby power sources, while the unit operates from -5 °C to 45 °C at up to 95% relative humidity and elevations up to 3000 m.

Highlights

  • Switched outlet control enables remote reboot of locked equipment
  • Metered-by-outlet monitoring provides per-port power visibility
  • 21 C13 and 3 C19 outlets support dense rack deployments
  • 0U vertical form factor preserves horizontal rack space
  • 208V 20A input delivers up to 5.7 kW capacity

Specifications

BrandAPC
ModelAP8661
TypeSwitched, Metered
Rack Size0U
StyleRackmount
CertificationscUL Listed, FCC Part 15 Class A, ICES-003, UL Listed, VCCI Class A
ROHSYes
Input Voltage208V
Input Frequency50/60 Hz
Maximum Input Current20A
Regulatory Derated Input Current16A
Input Connector(s)NEMA L21-20P
Cord Length6 ft
Output Voltage208V
Output Frequency50/60Hz
Output Connector(s)(21) IEC 320 C13
(3) IEC 320 C19
Overload ProtectionNo
Operating Environment-5 - 45 ºC
Operating Relative Humidity5 - 95%
Operating Elevation0 - 3000 m
Storage Temperature-25 - 65 ºC
Storage Relative Humidity5 - 95%
Storage Elevation0 - 15000 m
FeaturesAPC Metered by Outlet with Switching Rack Power Distribution Units (PDUs) enable advanced, user-customizable power control and individual outlet power metering.
Remote outlet level controls allow power on/off functionality for power recycling to reboot locked-up equipment and to avoid unauthorized use of individual outlets.
Power sequencing delays allow users to define the order in which to power up or down attached equipment.
Avoid circuit overload during power recovery and extend uptime of critical equipment by prioritizing the load shedding.
Current metering provides real-time rem
Dimensions72.01" x 2.2" x 2.01"
Weight15,74 lbs.
Shipping weight9.39 kg
Package size2038 × 162 × 118 mm

Questions about this item

Does the PDU ship with mounting hardware and cables, or must they be purchased separately?

The unit includes the PDU with a 6 ft cord terminated in a NEMA L21-20P plug; mounting brackets and any IEC C13 or C19 power cords for connected equipment are not included and must be sourced separately.

How do the 21 C13 and 3 C19 outlets help me decide which version to choose?

Choose this model when you need up to 21 standard server cords (C13) plus three high-current connections (C19) on a single 0U vertical chassis fed by a 208 V, 20 A three-phase supply.

What does the 5.7 kW headline figure mean once the PDU is installed in a rack?

It is the maximum apparent power the strip can deliver when each phase runs at the 16 A regulatory derated limit, giving 5.7 kW of usable capacity for connected servers and network gear.

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