RAB T17FA-2X4/E LED Troffer — 2×4 — 50/40/30W Selectable — 3500K/4000K/5000K — Battery Backup — White
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About this item
About this item
- Factory-Installed Battery Backup: Integrated battery backup provides 90 minutes of emergency illumination at 120V or 277V on power failure — simplifies egress and life-safety compliance in a single fixture. Min. starting temp: 0°C (32°F).
- Selectable Wattage & Output: Field-select 50W, 40W, or 30W at the fixture — delivers 4,243 to 6,521 lumens at 4000K, up to 147.3 lm/W peak efficacy. Ships at 50W default. No rewiring required.
- 3500K/4000K/5000K CCT Selectable: Field-select color temperature at the fixture without tools — one SKU covers warm-to-daylight tuning for any 2×4 commercial application. Ships at 4000K default. Complies with ANSI C78.377-2017.
- DLC Listed: DLC ID S-GVLCC7 — eligible for rebates from DLC Member Utilities. Visit designlights.org and search S-GVLCC7 to verify eligibility with your utility provider.
- Damp Location Rated: UL Listed for damp locations — suitable for restrooms, stairwells, egress corridors, and standard office and classroom environments. 5-year limited warranty and L70 100,000-hour rated life.
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Description
Description
RAB T17FA-2X4/E LED Troffer — 2×4 — 50/40/30W Selectable — 3500K/4000K/5000K — Battery Backup — White
The RAB T17FA-2X4/E is a 2×4 field-adjustable LED troffer with factory-installed battery backup and field-selectable wattage (50W, 40W, or 30W) and field-selectable color temperature (3500K, 4000K, or 5000K). Maximum output is 6,521 lumens at 50W / 4000K. The integrated battery backup provides 90 minutes of emergency illumination at 120V or 277V on power failure. Supports 0–10V dimming (10–100%), operates on 120–277V, and is rated for damp locations. DLC Listed. Backed by a 5-year limited warranty. Ships at 50W and 4000K default.
Key Features
- Factory-Installed Battery Backup: Provides 90 minutes of emergency illumination at 120V or 277V on power failure. Min. starting temp with battery: 0°C (32°F). Max ambient with battery: 45°C (113°F).
- Selectable Wattage: Field-selectable between 50W, 40W, and 30W at the fixture. Ships at 50W default. No rewiring required.
- Wattage Equivalency: Replaces fluorescent troffers with significant energy savings across all three wattage settings.
- Maximum Lumen Output: 6,521 lumens at 50W / 4000K.
- Selectable CCT: 3500K, 4000K (default), or 5000K — field-adjustable at the fixture. Complies with ANSI C78.377-2017.
- CRI: 83–84 (varies by CCT and wattage setting).
- Dimming: 0–10V continuous dimming, range 10–100%. Requires separate 0–10V DC dimming circuit. Driver: Class 2, Class P, Constant Current.
- Voltage: 120–277V, 50/60Hz. Surge protection: Ring-wave 2.5kV.
- Location Rating: UL Listed — Damp Location Rated.
- IP Rating: IP20.
- Operating Temperature: −20°C to 45°C (−4°F to 113°F). Min. starting temp with battery: 0°C (32°F).
- Certifications: UL Listed — DLC Listed — IESNA LM-79 & LM-80 tested — RoHS. Mercury-free. UV-free.
- Rated Life: 100,000 hours (L70, IES LM-80 / TM-21).
- Warranty: 5-year limited warranty covering light output, driver performance, and paint finish.
Performance & Light Output
Lumen output per wattage and CCT per spec sheet. Input watts and efficacy shown as measured.
| Wattage | CCT | Input W | Lumens | Efficacy (lm/W) | CRI |
|---|---|---|---|---|---|
| 50W | 3500K | 49.6 | 6,080 lm | 122.6 | 83 |
| 50W | 4000K | 47.0 | 6,521 lm | 138.7 | 84 |
| 50W | 5000K | 49.3 | 6,193 lm | 125.6 | 83 |
| 40W | 3500K | 40.6 | 5,201 lm | 128.1 | 83 |
| 40W | 4000K | 38.7 | 5,540 lm | 143.2 | 84 |
| 40W | 5000K | 40.3 | 5,301 lm | 131.5 | 84 |
| 30W | 3500K | 29.9 | 4,031 lm | 134.8 | 83 |
| 30W | 4000K | 28.8 | 4,243 lm | 147.3 | 84 |
| 30W | 5000K | 29.7 | 4,103 lm | 138.1 | 84 |
Rated life: L70 100,000 hours (IES LM-80 / TM-21). Tested per IESNA LM-79 & LM-80. Emergency Light Loss Factor (LLF): 50W — 0.25 · 40W — 0.28 · 30W — 0.36.
Electrical
Driver: Class 2, Class P, Constant Current. Input voltage: 120–277V, 50/60Hz. Power factor: 99.3% at 120V · 97.1% at 277V. THD: 11.2% at 120V · 3.9% at 277V. Surge protection: Ring-wave 2.5kV. Dimming: 0–10V continuous, range 10–100% — requires separate 0–10V DC dimming circuit. Battery backup: 90 minutes at 120V or 277V on power failure; min. starting temp: 0°C (32°F); max ambient with battery: 45°C (113°F). Mercury-free. UV-free. RoHS-compliant components.
| Wattage | 120V | 208V | 240V | 277V |
|---|---|---|---|---|
| 50W | 0.46A | 0.28A | 0.24A | 0.21A |
| 40W | 0.37A | 0.22A | 0.19A | 0.17A |
| 30W | 0.28A | 0.17A | 0.15A | 0.13A |
Construction
Housing: Aluminum frame and cold rolled steel back housing.
Lens: Frosted Polystyrene (PS).
Reflector: Powder-coated sheet metal.
Finish: White. Formulated for high durability and long-lasting color.
Environmental & Safety: UL Listed — Damp Location Rated — IP20.
Dimensions: 47¾″ L × 23¾″ W × 1⅜″ H. Net weight: 7.28 lbs (fixture only; battery module adds weight).
Installation & Mounting
Standard Mounting: Recessed into T-grid ceiling.
Optional Mounting Accessories (Sold Separately):
- RMKPANEL2X4 — LPANEL 2×4 Recessed Mounting Kit, White (for drywall ceilings)
- SMKEZPAN2X4 — EZPAN 2×4 Surface Mounting Kit, White
Certifications & Rebates
- UL Listed — Damp Location Rated
- DLC Listed — DLC ID: S-GVLCC7. Eligible for rebates from DLC Member Utilities. To verify rebate eligibility with your utility provider, visit designlights.org and search S-GVLCC7.
- IESNA LM-79 & LM-80 Tested
- RoHS Compliant
Typical Applications
- Egress corridors and large open areas requiring code-compliant emergency lighting — factory-installed battery backup provides 90 min of emergency illumination on power failure
- Government and institutional facilities — DLC Listed qualification supports utility rebate eligibility; /E battery backup simplifies egress compliance
- Healthcare and clinical environments — damp location rated with CRI 83–84; selectable wattage and CCT for varied room requirements
- Educational facilities and gymnasiums — 2×4 format fits standard T-grid ceiling systems; combined normal and emergency operation in a single fixture
- Fluorescent retrofit projects requiring emergency lighting — one SKU covers multiple wattage and CCT specs with integrated battery backup
What’s Included
- RAB T17FA-2X4/E LED troffer fixture with factory-installed battery backup — 2×4 — White
Specifications
Specifications
Dimensions
Style & Materials
Characteristics & Features
Electrical Information
Item Details
Warranty & Certifications
Shipping & Returns
Shipping: Enjoy free standard shipping on most orders over $99. Exclusions apply for oversized & commercial items. We ship to the contiguous 48 United States.
Returns: We offer a 60-day return window for most items. Products must be in their original, unused condition with all packaging. Exclusions: Special orders, clearance, and custom items.
Frequently Asked Questions
How long does the battery backup operate during a power failure?
How long does the battery backup operate during a power failure?
What are the lumen output values at each wattage and CCT for the T17FA-2X4/E?
What are the lumen output values at each wattage and CCT for the T17FA-2X4/E?
Can I still adjust wattage and CCT on the /E battery backup version?
Can I still adjust wattage and CCT on the /E battery backup version?
What is the dimming range for the T17FA-2X4/E?
What is the dimming range for the T17FA-2X4/E?
Is the T17FA-2X4/E DLC Listed and what mounting options are available?
Is the T17FA-2X4/E DLC Listed and what mounting options are available?
