Metered PDU · M-Series
Every watt, on the record.
The M-Series meters each feed at ±1% billing grade — V, A, kW, kWh, power factor and phase balance per unit — and streams it all over SNMP v3 or REST at 1-second resolution.
Billing-grade by design
±1% you can invoice against
Billing grade is a chain, not a slogan: a metering front end built to the IEC 62053-21 class 1 accuracy basis, then calibrated per unit against a reference source before it ships. The calibration record travels with the serial number, so the ±1% claim traces back to a bench, a date and a standard — not a brochure.
Settlement data lands as 15-minute kWh freeze values — the interval utilities bill on — alongside 1-second live telemetry of V, A, kW, PF and THD(i). Per-phase balance readings let you spread single-phase loads across feeds before they become hot panels and nuisance trips.
- Measured per unitV · A · kW · kWh · PF · THD(i)
- Live telemetry1-second polling
- Settlement freeze15-minute kWh
- Accuracy basisIEC 62053-21 class 1
Input & metering
Specify it like an engineer
Input
Metering
Engineering table
M-Series full specifications
| Parameter | Specification |
|---|---|
| Input plugs | IEC 60309 16A / 32A / 63A (6h clock keying); NEMA L5-30P, L6-30P, L21-30P |
| Input voltage | 100-127V / 200-240V single-phase; 208-240V / 346-415V three-phase WYE |
| Maximum output | 36kW on a 63A three-phase 415V vertical unit |
| Outlets | IEC 60320 C13 (≤10A) and C19 (≤16A); locking variants optional |
| Outlet count | 8-32 typical per unit; up to 48 mixed on a 0U vertical |
| Branch protection | Hydraulic-magnetic breakers 9-63A per bank (temperature-insensitive tripping) |
| Metering accuracy | ±1% billing grade, IEC 62053-21 class 1 accuracy basis |
| Metered parameters | V, A, kW, kWh, PF, THD(i), per-phase balance |
| Telemetry interval | 1-second polling; 15-minute kWh settlement freeze |
| Network | 10/100/1000Base-T; daisy-chain up to 8 units on a single IP |
| Protocols | SNMP v1/v2c/v3, HTTP(S), SSH, Modbus TCP, REST API |
| DCIM integration | Sunbird, Device42, Nlyte via SNMP/REST; MIB file on request |
| Environment sensors | 2 × RJ12 ports (temperature/humidity, door contact, water leak) |
| Mechanical | 0U vertical (full 48U length) or 1U horizontal, 19-inch racks |
| Certifications | UL 62368-1, IEC/EN 62368-1, CE, UKCA, RoHS, FCC Part 15 Class A |
| Factory test | 100% of units: calibration check, 1500V AC hipot, 48-72h full-load burn-in |
FAQ
Metered PDU questions we actually get
Two steps. The metering front end is a billing-class chip built to the IEC 62053-21 class 1 accuracy basis, and every unit is then calibrated against a reference source before packing. The per-unit calibration record ships with the serial number — ask for it with any order and we include it.
Ordinary metered units use consumer-grade chips that drift outside invoicing tolerance — fine for capacity planning, not for money. Billing grade means ±1% on a class-1 basis plus 15-minute kWh settlement freezes, so the numbers can back a tenant invoice or an internal chargeback without an asterisk.
Yes — SNMP v1/v2c/v3 and REST out of the box, with the MIB file and OID tree available on request. Sunbird, Device42 and Nlyte integrations are the common cases; daisy-chain up to 8 units on one IP to keep cabling and IP planning simple across a row.
Match the country and the feed. IEC 60309 covers 16A / 32A / 63A single- and three-phase with mis-plug-proof 6h clock keying; NEMA L5-30P, L6-30P and L21-30P cover North American 120V, 240V and 208V three-phase feeds. Both come from the same platform, and mixed fleets are a normal order for us.
Send us the feed and the outlet list
Input current, phase, outlet count and quantity — an engineer replies within 48 hours with the matching M-Series build, a datasheet and FOB pricing. Standard-config samples ship in 3-7 days.
