# EX-ES03 Explosion Proof Exit and Emergency | Maes

> EX-ES03 explosion proof exit and emergency specifications: four configurations, 3 hour backup, red or green legends, UL844 and UL924, NEMA 4X, IP66 and IK10.

Canonical page: https://maeslighting.com/products/explosion-proof-lighting/ex-es03

Product family · explosion-proof-lighting

# EX-ES03 explosion proof exit and emergency light.

A Class I Division 1 exit and emergency unit in four configurations, documented with 3 hour backup across all of them.

EX-ES03 configurations

## Every documented EX-ES03 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.

- ES03A1Type: Emergency Light120–277VAC, 50/60Hz
- ES03A2Type: Emergency + Exit Combo100–277VAC or 12–48VDC, 50/60Hz
- ES03A3Type: Exit Sign Only100–277VAC, 50/60Hz
- ES03C1Type: Emergency Light (Screw-Cover)120–277VAC, 50/60Hz

Ordering data

## Every documented EX-ES03 configuration.

All 4 configurations of the family are specified on this page, so you can compare wattages, outputs and options side by side.

| Model | Type | Input Voltage | Power | Backup Duration | Exit Legend Options | Key Ratings |
| --- | --- | --- | --- | --- | --- | --- |
| ES03A1 | Emergency Light | 120–277VAC, 50/60Hz | 2 × 5W heads | 3 hours | N/A | UL844, UL924 (ETL), NEMA 4X, IP66, IK10, C1D1/C1D2, C2D1/C2D2, Class III |
| ES03A2 | Emergency + Exit Combo | 100–277VAC or 12–48VDC, 50/60Hz | 2 × 5W heads + 3–5W legend | 3 hours (independent systems) | Red / Green letters, directional arrows | UL844, UL924, NEMA 4X, IP66, IK10, C1D1/C1D2, C2D1/C2D2, Class III |
| ES03A3 | Exit Sign Only | 100–277VAC, 50/60Hz | 3–5W legend | 3 hours | Red / Green letters, directional arrows | UL844, UL924, NEMA 4X, IP66, IK10, C1D1/C1D2, C2D1/C2D2, Class III |
| ES03C1 | Emergency Light (Screw-Cover) | 120–277VAC, 50/60Hz | 2 × 5W heads | 3 hours | N/A | UL844, UL924 (ETL), NEMA 4X, IP66, IK10, C1D1/C1D2, C2D1/C2D2, Class III |

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

Engineering reference

## Selecting within the EX-ES03 family.

Start with the duty — emergency, exit, or both — since that selects the configuration. Then confirm the legend colour and any directional arrows, and check the input voltage, which differs between configurations and includes a 12 to 48 V DC option on the combination unit.

EX-ES03 is the only fixture in the catalogue that is both classified and code-mandated: UL844 for the hazardous location and UL924 for egress. The four configurations separate emergency light, exit sign and combination duty, with the combination unit running the two systems independently.

Controlled document

## EX-ES03 specification sheet

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

[Download specification sheet](https://storage.googleapis.com/msgsndr/ZuNLM6pdiP00w1G1is8O/media/68a69c6b48220c0d620febd5.pdf)

Common questions

## Useful answers before the next step.

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

**What configurations are documented?**

Four: emergency light only, emergency and exit combination, exit sign only, and a further variant. The combination unit runs its emergency and exit systems independently, each with 3 hour backup.

**What legend options are available?**

Red or green letters with directional arrows on the exit and combination configurations. The emergency-only configuration carries no legend.

**Why does this appear under both explosion proof and emergency?**

It satisfies both requirements — UL844 for the classified area and UL924 for egress — in one unit, specified in full below.

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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