Product Description
The Keystone KTSB-E-1040-14-UV Electronic Sign Ballast is designed for dependable, long-lasting performance in commercial sign lighting applications. It supports 1 to 4 T8HO or T12HO fluorescent lamps with a combined lamp length of 8′ to 40′, making it a versatile solution for a wide range of sign configurations.
Featuring parallel lamp wiring and instant start technology, this ballast delivers reliable, energy-efficient illumination with consistent light output. Built to meet demanding commercial requirements, it complies with UL and FCC standards and is engineered to operate in extreme conditions.
Rugged and reliable, the KTSB-E-1040-14-UV performs in cold temperatures down to -20°F (-30°C) and withstands case temperatures up to 194°F (90°C), making it ideal for both indoor and outdoor signage that must remain illuminated around the clock.
✅ Key Features & Technical Specifications
| Feature | Details |
|---|---|
| Lamp Compatibility | 1–4 Lamps (T8HO or T12HO) |
| Combined Lamp Length | 8′ to 40′ |
| Starting Method | Instant Start |
| Lamp Connection | Parallel Wiring |
| Input Voltage | 120–277 VAC ±10% |
| Input Frequency | 50/60 Hz |
| Sound Rating | A |
| Minimum Starting Temperature | -20°F (-30°C) |
| Maximum Case Temperature | 194°F (90°C) |
| Certifications | UL Listed, cUL 935, Class P, Type HL, Type 2 Outdoor |
| Compliance | FCC Part 18 (Class A, Non-Consumer) |
- Brand Keystone
- Item number KTSB-E-1040-14-UV /A
- UPC 890949009017
- Width 3.23 Inch
- Height 2.20 Inch
- Length 14.45 Inch
- Warranty 4 Years
Customers Also Looked At
Safety & Protection
Safe-to-use design for residential and commercial environments
Quality & Craftsmanship
Excellent build quality using premium-grade materials
Customer Service & Support
Dedicated support to help you choose the right product