Data center power monitoring

Ceiling busway monitoring

Continuous thermal monitoring of the busway, tap-off points and whips that feed every rack's PDUs and PSUs. One sensor covers around a dozen connections, pointed right at the hot spots.

Works on the busway you already have. No hall shutdown.

Request a demo Explore Butlr for data centers

Busway run B-3 · Tap-off points

Illustrative

TO-05

29.4°C

TO-06

29.9°C

TO-07

[TEMP] ↑

TO-08

29.1°C

TO-09

30.2°C

TO-10

29.6°C

One sensor covers around a dozen tap-offs, each tracked against its own baseline.

Busway is flexible. That's also where it fails.

The same design that lets you add and move racks quickly puts dozens of connections overhead, where nobody looks between scans.

Tap-offs get moved

Every rack change means a tap-off or whip is unplugged, moved or reseated. Each move is a chance for a connection to seat poorly.

Load swings, joints cycle

AI workloads ramp up and down. Joints heat, cool and loosen over time, and resistance climbs with them.

Out of sight, overhead

Tap-offs sit above the racks, often over containment. Checking one by hand takes a lift, a ladder and a scheduled window.

Built for every GPU generation

Back-of-rack designs change with every platform. The ceiling busway feeding them doesn't.

Hopper and Blackwell

~24connectors per rack

Ceiling busway down to back-of-rack PDUs and PSUs. Wire-heavy designs that will ship in volume for years.

Vera Rubin

10+connector points per rack

Two whips per busway and a cleaner back of rack. Fewer connections, each carrying more current.

Whatever sits in the rack, the busway above it is the same. Monitor it once and keep that coverage through every refresh.

$100K

per day of downtime for a 1 MW pod, before SLA penalties [CONFIRM SOURCE]

364

days between annual infrared inspections, the common NETA practice

~12

tap-offs covered by a single sensor

One sensor, not dozens

Scans only see one day. Point sensors see one connection each, stitched to a gateway and labeled by hand. Butlr sees the whole run.

Approach	Handheld infrared scan	Point sensors and a gateway	Butlr
How often	Once or twice a year	Continuous	Continuous
Coverage per device	Whatever the technician points at	One connection	Around a dozen tap-offs
At scale	Lifts, ladders, scheduled windows	Hundreds of devices to wire and label	A few wireless sensors per run
After a rack move	Unchecked until the next survey	Sensors moved and relabeled	The reseated tap-off shows up in the trend

Wireless Butlr sensor mounted on a strut above overhead busway — Wireless sensor aimed at the overhead busway

How it works

1
Point at what runs hot
A wireless thermal sensor mounts wherever it has a clear line of sight to the tap-offs and whips, overhead or alongside. Retrofit on the busway you already have, with no hall shutdown.
2
Map each tap-off
Zones in the Butlr Platform match your tap-off IDs, so every reading ties back to a rack, a PDU and a circuit. No per-device labeling.
3
Catch the slow climb
A tap-off running warmer than its neighbors, or warmer than it did last month, gets flagged before it fails.