# RT-HPH High Temperature Round High Bay | Maes Lighting

> RT-HPH high temperature round high bay specifications: 240 W, 31,200 lumens, 120° distribution, dual voltage and a documented 80 °C ambient ceiling.

Canonical page: https://maeslighting.com/products/high-temperature-lighting/rt-hph

Product family · High Temperature

# RT-HPH high temperature round high bay.

A single-configuration round high bay for hot bays, documented at 240 W and 31,200 lumens with a 120° distribution and an 80 °C ambient ceiling.

RT-HPH configurations

## Every documented RT-HPH configuration.

One family, every configuration: the fixture is shown at full size, with each available configuration listed below and specified line by line in the ordering table.

- HPH240UC RT-HPH High Temperature Round High BayWattage: 240 W31,200 lm

Ordering data

## Every documented RT-HPH configuration.

All 1 configurations of the family are specified on this page, so you can compare wattages, outputs and options side by side.

**RT-HPH High Temperature Round High Bay, 240 W, up to 80°C**

| Model | Wattage | Typical Lumens | Voltage | Optics | Operating Temp | Key Ratings |
| --- | --- | --- | --- | --- | --- | --- |
| HPH240UC RT-HPH High Temperature Round High Bay | 240 W | 31,200 lm | 100 to 277 V AC, 200 to 480 V option | 120° wide distribution | 40°C to 80°C ambient, 10 to 90 percent RH | IP66, 130 lm per W, 0 to 10 V dimming, power factor greater than 0.9, DLC Standard, cULus, 5 year warranty |

Confirm the exact configuration against the current manufacturer specification sheet before approval or purchase.

Engineering reference

## Selecting within the RT-HPH family.

There is one configuration, so selection is a yes or no against the ambient and mounting. Confirm the measured ambient sits inside the documented range and that the 120° distribution suits the mounting height before ordering.

RT-HPH is a one-model family rather than a wattage ladder. It exists to put a conventional round high bay form factor into a bay that a standard high bay cannot survive, which is why it is listed under both high temperature and high bay.

Controlled document

## RT-HPH specification sheet

The manufacturer's specification sheet remains the controlling project document.

[Download specification sheet](https://storage.googleapis.com/msgsndr/ZuNLM6pdiP00w1G1is8O/media/6922ea90e7de66eb0f7888ee.pdf)

Common questions

## Useful answers before the next step.

These answers clarify the selection process without replacing project-specific documentation.

**Is more than one wattage available in this family?**

No. The family is a single 240 W configuration at 31,200 lumens. If you need wattage flexibility in a hot bay, look at the EDGE or RT-IL families instead.

**Why does RT-HPH appear under both high temperature and high bay?**

It serves both selection paths — a high bay that happens to tolerate heat, or a high temperature fixture that happens to be a round high bay. Either way, this is the family's complete specification.

---

Maes Lighting — nationwide supplier of certified explosion proof, industrial, high-temperature,
food-processing, vapor-tight, high-bay, flood, area, and emergency LED lighting.
Headquarters: Broken Arrow, Oklahoma. Sales: (866) 860-6399 · tjacobs@maeslighting.com
Website: https://maeslighting.com