Keystone KTSB-E-1040-14-UV - Ballast | 1–4 Lamp |T8HO/T12HO, 8′–40′ | Parallel Wiring

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

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$500.00

Model: KTSB-E-1040-14-UV /A

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)

Specification Document

Spec Sheet

Download Full Datasheet

Product Identity

Brand Keystone
Item number KTSB-E-1040-14-UV /A
UPC 890949009017
Warranty 4 Years

Electrical

Size & Weight / Finish

Width 3.23 Inch
Height 2.20 Inch
Length 14.45 Inch

Light Output & Performance

Certification

UL listed Yes
Compliance FCC
cULus Listed Yes

Wireless Connection

Type

Included

Suitable

Warranty

Manufacturer Warranty Information

Keystone KTSB-E-1040-14-UV - Ballast | 1–4 Lamp |T8HO/T12HO, 8′–40′ | Parallel Wiring provides a comprehensive 5-Year Manufacturer Warranty on this product. We stand by our engineering; this product is warranted for as long.