Isolation Transformer PDUs
1.5 kW–10 kW | Clean, Isolated Power Distribution
Galvanically isolated rack, wall, and floor-mount PDUs supporting 120V, 208V, and 240V input and output for mixed-voltage and noise-sensitive environments.
1.5 kW to 10 kW · 120V / 208V / 240V · Galvanically Isolated Power Distribution
Isolation transformer PDUs
The Xtreme Power Isolation Transformer PDU family delivers galvanically isolated power distribution for environments where power quality, grounding integrity, and equipment protection are critical. A heavy-duty isolation transformer electrically separates sensitive loads from the utility or upstream UPS – reducing common-mode noise, eliminating ground loops, and suppressing the interference that causes instability or premature equipment failure across IT, AV, retail, industrial, laboratory, and edge deployments.
Clean, isolated power for mission-critical equipment
Engineered for demanding electrical conditions, Isolation Transformer PDUs deliver clean, stable power to critical loads while meeting mixed-voltage requirements. The integrated galvanic isolation transformer reduces common-mode noise and electrical interference found in IT, retail, industrial, and laboratory environments, and supports multiple output voltages and receptacle configurations for mixed-load racks. When combined with an Xtreme Power UPS, these PDUs form one of the cleanest and most robust power architectures available for noise-sensitive applications.
What is an isolation transformer PDU?
An isolation transformer PDU integrates a galvanically isolated transformer directly into a power distribution unit. By electrically separating connected equipment from the upstream source, it reduces common-mode noise and ground loops, improves power quality for IT, AV, industrial, and laboratory loads, and enables safe voltage conversion in mixed-voltage environments. It is commonly used where standard UPS output alone is not sufficient to meet power-quality or voltage requirements.
What the Isolation PDU delivers
Models span small IT racks through high-power industrial and laboratory applications.
NEMA plugs, IEC inlets, or terminal-block connections, in hardwired or plug-and-receptacle configurations by model.
120V and/or 240V outputs, including step-down isolation for mixed-voltage environments.
A heavy-duty isolation transformer reduces common-mode noise and minimizes ground-related interference.
Available in 2U-3U rack-mount, wall-mount, or floor-mount configurations.
All-metal enclosures and oversized transformers engineered for long service life.
Six models by voltage, capacity, and form factor
| Model | Input connection | Output receptacles | Voltage (in → out) | Capacity | Dimensions (W×D×H) | Weight |
|---|---|---|---|---|---|---|
| XPD-IT15LV | 5-15P → C13 (3-ft detachable) | (16) 5-15R | 120V → 120V | 1.5 kW | 17.3 × 16.1 × 3.5 in (2U) | 44 lb |
| XPD-IT20LV | 5-20P → C19 (3-ft detachable) | (16) 5-15/20R | 120V → 120V | 2.0 kW | 17.3 × 20.1 × 3.5 in (2U) | 50 lb |
| XPD-IT15A | C14 → C13 (3-ft detachable) | (16) 5-15R | 208V → 120V | 1.5 kW | 17.3 × 10.5 × 3.5 in (2U) | 43 lb |
| XPD-IT60A | L6-30P (plug-in) | (12) 5-15/20R + (1) L6-30R | 208/240V → 240/120V | 6.0 kW | 17.3 × 18.0 × 3.5 in (2U) | 137 lb |
| XPD-IT6kW | Terminal block (in / out) | (2) L14-30R + (8) 5-15/20R | 208/240V → 240/120V | 6.0 kW | 17.3 × 32.8 × 4.7 in (3U) | 199 lb |
| XPD-IT10kW | Terminal block (in / out) | (2) L14-30R + (8) 5-15/20R | 208/240V → 240/120V | 10.0 kW | 17.3 × 32.8 × 4.7 in (3U) | 209 lb |
Specifications from the Isolation PDU datasheet (Rev 3/19/20). All models are single-phase, 50/60 Hz, with a galvanic isolation transformer. LV models step 120V to isolated 120V; 208/240V models step down to 240/120V. Capacity is shown per the model selection guide; the XPD-IT60A is also marketed as a 6 kVA unit.
XPD-IT15LV and XPD-IT20LV — isolation for a 120 V rack
The two LV models are the only ones in the range that take 120 V in and give isolated 120 V out. That is what makes them usable on an ordinary branch circuit, without pulling 208 V to the rack, and it is why they are the most common isolation choice in AV and laboratory installations.
Paired with a P91 online UPS they form the smallest isolated online configuration Xtreme Power offers. The TX91 builds isolation into the UPS but starts at 3.8 kVA; below that, a pair covers it.
Matched to the P91
| Isolation PDU | Capacity | UPS | Real power | Headroom |
|---|---|---|---|---|
| XPD-IT15LV | 1.5 kW | P91-1500 | 1450 W | 50 W |
| XPD-IT15LV | 1.5 kW | P91-1.5kLi | 1350 W | 150 W |
| XPD-IT20LV | 2.0 kW | P91-2000 | 1930 W | 70 W |
| XPD-IT20LV | 2.0 kW | P91-2kLi | 1800 W | 200 W |
Size the transformer to the load, not to the UPS nameplate. If the equipment draws 900 W, an XPD-IT15LV is correct whichever P91 sits above it. The headroom column shows the margin at full UPS output, which most installations never reach.
Full wiring order, sizing rules and the 200 W JX-200 option are on the UPS with isolation transformer page.
XPD-IT60A — 6 kVA flagship
The XPD-IT60A is the flagship rack-mount isolation transformer PDU in the Xtreme Power lineup, purpose-built for 208V or 240V UPS-backed racks that must safely support 120V equipment. It converts 208V or 240V input to clean, isolated 240/120V output through a plug-in NEMA L6-30P inlet – no hardwiring – and delivers high-density distribution from (12) NEMA 5-15/20R outlets plus an L6-30R in a compact 2U form factor. It is ideal for IDF closets, edge racks, broadcast systems, and mixed-voltage IT deployments.
Inputs, outputs, and mounting
Designed for UPS-backed power architectures
Isolation Transformer PDUs are designed to operate downstream of a UPS – line-interactive or online double-conversion – improving overall power quality while preserving UPS protection and battery backup. Common pairings include the P91 Series online UPS (5-10 kVA) for continuous, conditioned power and the P80g line-interactive UPS (208/230V) for efficient, cost-effective protection. For applications requiring monitoring, metering, or remote power control, an Isolation PDU can feed a downstream SPDU smart PDU – delivering clean, isolated power plus outlet-level visibility and control.
Where Isolation PDUs are deployed
IDF closets and edge racks requiring clean, isolated power for sensitive equipment.
Powering sensitive transaction and control electronics in retail environments.
Reducing electrical noise in manufacturing, automation, and test systems.
Supporting switchers, encoders, monitors, and control gear.
Stable, isolated power for precision laboratory and instrumentation equipment.
Clean, isolated distribution for mixed-voltage edge and distributed sites.
Isolation PDU specifications
| Specification | Detail |
|---|---|
| Type | Galvanic isolation transformer PDU |
| Power rating | 1.5 kW to 10 kW |
| Input voltage | 120V / 208V / 240V |
| Output voltage | 120V / 240V (incl. 240/120V step-down) |
| Frequency | 50 / 60 Hz |
| Phase | Single-phase |
| Transformer | Heavy-duty galvanic isolation |
| Input connections | NEMA plug, IEC inlet, or terminal block (by model) |
| Output receptacles | NEMA 5-15R / 5-15/20R / L14-30R / L6-30R (by model) |
| Mounting | Rack (2U-3U), wall, or floor |
| Construction | All-metal enclosure, oversized transformer |
| Warranty | 3 years, full (USA & Canada) |
Isolation transformer PDUs — frequently asked questions
Does the isolation PDU go before or after the UPS?
After. The PDU belongs downstream, between the UPS output and the load. Putting a transformer upstream cleans the power going into the UPS, which is not the problem it solves, and leaves the equipment exposed to whatever the UPS output and the building ground reference are doing. Downstream is what breaks the common-mode path to the protected equipment.
Is an isolation transformer the same as an autotransformer?
No, and the difference is the whole point. An autotransformer shares a single winding between input and output, so it will change voltage but the two sides stay electrically connected. It provides no galvanic separation and does nothing for common mode noise. Every XPD-IT model is a true isolation transformer with separate primary and secondary windings, which is why they weigh 43 to 209 lb. If a competing quote is much lighter or cheaper for the same kVA, confirm which one it is.
Which model do I need?
Start with the input voltage at the rack and the output voltage the equipment needs. The LV models take 120 V in and give 120 V out, which suits an ordinary branch circuit. The 15A takes 208 V in and gives 120 V out. The 60A, 6kW and 10kW models step 208 or 240 V down to 240/120 V, so they cover mixed-voltage racks. Then size on watts to the actual load rather than to the UPS rating.
How do I size an isolation PDU?
To the connected load in watts, not to the UPS nameplate or the breaker. If the equipment draws 900 W, a 1.5 kW model is right whether the UPS above it is 1500 or 2000 VA. VA ratings are of limited help here because most modern loads sit close to unity power factor, so watts is the number that matters.
Can I plug a power strip into the isolation PDU?
It defeats most of the benefit. Isolation is established at the transformer output and nowhere else, so a downstream strip or PDU with its own ground path reintroduces exactly what the transformer was installed to break. Connect the sensitive equipment directly to the PDU receptacles. This is the most common reason an isolated installation fails to deliver what was paid for.
How close to the equipment does it need to be?
As close as practical. Everything downstream of the transformer secondary is unprotected cable: it picks up interference from whatever it is bundled with, and it adds voltage drop. Isolating at one end of a room and running a long branch to the equipment gives back a good part of the benefit. Same rack or same enclosure is the target.
Will this fix hum in an audio or AV system?
Usually, yes. Hum in audio and horizontal bars in video normally trace to a ground loop between components fed from different circuits, which is common mode noise described in different words. A galvanic isolation transformer breaks the loop at the source. It is the proper fix rather than lifting a ground pin, which defeats a safety ground and leaves the cause in place.
What is the warranty?
Three years, full, in the USA and Canada, across the range.
Documents and related products
Need help selecting the right model?
Xtreme Power Isolation Transformer PDUs improve power quality, reduce electrical noise, and support mixed-voltage environments. Our team can help you select the right model and capacity, confirm UPS compatibility, and design a clean, isolated power architecture.
