Rittal DK 7979.440 PDU Managed — 36 × C13 + 6 × C19, Switchable, 3-Phase 16 A
36 × C13 + 6 × C19Per-outlet switchingPer-slot metering2 × Gbit LAN
The Rittal DK 7979.440 PDU managed is a vertical 0U power distribution unit for server racks with 36 IEC C13 and 6 IEC C19 outlets, fed from a three-phase 400 V / 16 A supply through a CEE 16 A plug on a 3 m cable, for up to 11 kW. Each phase serves 12 × C13 and 2 × C19 outlets.
Every outlet can be switched individually over the network, and every output slot is metered — voltage, current, frequency, active and apparent power, power factor and THD — with ±1% energy accuracy to EN 62053-21. Two redundant Gigabit Ethernet ports provide HTTP/HTTPS, SSH, SNMP v1/v2c/v3, Modbus/TCP, OPC-UA, FTP/SFTP and SMTP email.
Before you order: the PDU needs a three-phase 400 V CEE 16 A five-pin supply, and the outlets are IEC C13/C19 only. Servers and storage with C14/C20 inlets connect directly; devices with Schuko plugs need adapters or a different PDU.
What's in the Box
- 1 × Rittal DK 7979.440 PDU managed with 3 m cable and CEE 16 A plug
- Assembly parts
What It Means in Practice
- Remotely switch off, restart or sequence individual servers and network devices.
- Per-slot metering for capacity planning and energy allocation per customer or system.
- Integrate into DCIM or BMS via SNMP v3, Modbus/TCP or OPC-UA; email alerts via SMTP.
- Up to 16 environmental sensors on the CAN bus.
What Will Not Work
- No Schuko sockets.
- Not for single-phase or 32 A supplies.
- 11 kW total — for higher-density racks, a 32 A model is needed.
- Not a surge protector or UPS.
Key Features
Switchable outlets
Every slot individually switchable over the network.
Per-slot metering
V, A, Hz, kW, kVA, PF and THD per slot, ±1% kWh.
Redundant LAN
2 × RJ45 10/100/1000 with HTTPS, SSH, SNMP v3, Modbus/TCP, OPC-UA.
Display & sensors
TFT 128 × 128 display, CAN bus for up to 16 sensors, real-time clock.
Technical Specifications
| Identification |
| Brand |
Rittal |
| Part Number |
DK 7979.440 (7979440) |
| EAN/GTIN |
4028177948242 |
| Product type |
PDU managed |
| Power |
| Input |
1 infeed, 3~, CEE plug to IEC 60309 (3L+N+PE, 6h), 16 A |
| Cable |
H05-VV 2.5 mm², 3 m |
| Rated |
400 V AC, 16 A, 11 kW |
| Outlets |
36 × C13 + 6 × C19 (12 × C13 + 2 × C19 per phase) |
| Switching |
Slots individually switchable |
| Monitoring & network |
| Metering |
Per output slot; ±1% kWh to EN 62053-21 |
| Display |
TFT 128 × 128 RGB |
| Network |
2 × RJ45 10/100/1000, redundant |
| Protocols |
HTTP/HTTPS, SSH, SNMP v1/v2c/v3, Modbus/TCP, OPC-UA, FTP/SFTP, SMTP |
| Sensors |
CAN bus (RJ45), up to 16 sensors |
| Mechanical & environment |
| Mounting |
Vertical, 0U |
| Dimensions (W × L × D) |
44 × 1895 × 70 mm |
| Weight |
6.7 kg |
| Material / colour |
Aluminium, anodised RAL 9005 black |
| Operating temperature |
5–50 °C |
| Protection |
IP20, protection class 1 |
| Warranty |
| Warranty |
1-Year Warranty (Singular) |
| Manufacturer Term |
Manufacturer warranty term not stated in the Rittal datasheet for this item — warranty claims handled through Singular |
Frequently Asked Questions
Can each outlet be switched remotely?
Yes. Rittal lists every slot as individually switchable through the network interface.
What supply does it need?
A three-phase 400 V CEE 16 A five-pin socket (3L+N+PE).
Can I connect Schuko-plug devices?
Not directly. The outlets are IEC C13 and C19 only.
Singular Expert Insight · Buyer's Guide
A managed three-phase PDU combines remote switching and per-slot metering, the two features that matter most for remote server rooms. Match the 16 A three-phase supply and IEC cords before ordering. More rack power and mounting parts are in our
rack accessories.
✓ Buy it if you need many switchable IEC outlets with per-slot metering in a server rack on a 16 A three-phase feed.
✕ Skip it if your equipment uses Schuko plugs or your supply is single-phase.
→ Also consider the Rittal DK 7979.534 metered plus with 24 Schuko outlets on a 32 A supply.
Not sure it fits your rack and supply? Send us the rack model and supply details and we will check before you order.