Keystone KTSB-E-0848-46-UV 4-6 Lamp T8HO/T12HO Sign Ballast

Keystone KTSB-E-0848-46-UV 4-6 Lamp T8HO/T12HO Instant Start Sign Ballast – 120-277V

The Keystone Technologies KTSB-E-0848-46-UV is an electronic sign ballast for 4–6 T12HO or T8HO lamps with 8'–48' combined T12HO length (16'–36' T8HO). Instant start, parallel wiring, universal 120-277V for commercial sign repair.

 

Key Features

• 4, 5, or 6 T12HO or T8HO lamps
• T12HO combined length 8'–48'; T8HO 16'–36'
• Instant start; parallel lamp connection
• Universal 120-277Vac ±10%
• High power factor (>0.96); crest factor <1.70
• Sound Rated A; Type 2 Outdoor / Type HL
• Min. starting −20°F (−30°C); max case 194°F (90°C)
• Case ~14.45" L × 3.23" W × 2.20" H

 

Specifications

• Model: KTSB-E-0848-46-UV
• Brand: Keystone Technologies
• Ballast Type: Electronic sign ballast, instant start
• Lamps: 4–6 T8HO or T12HO
• Lamp Footage: T12HO 8'–48' / T8HO 16'–36'
• Lamp Connection: Parallel
• Input Voltage: 120-277Vac ±10%
• Frequency: 50/60 Hz
• Input Power: ~410W @120V (F96T12/HO) / ~370W (F72T8/HO)
• Power Factor: >0.96
• Dimensions: 14.45" L × 3.23" W × 2.20" H
• Mounting Centers: 13.75"
• Case Material: Metal
• Certifications: UL/cUL 935, Class P, Type 2 Outdoor, Type HL
• Warranty: Per Keystone sign ballast policy (typically 4-year)

KTSB-E-0848-46-UV spec sheet

 

Compatible Lamps / Fixtures

• F96T12/HO up to 8' (combined 8'–48')
• F72T8/HO (combined 16'–36')
• Commercial plastic sign cabinets

 

Compatible With / Replaces

• Other 4–6 lamp instant-start electronic sign ballasts in this footage class
• Failed magnetic or electronic HO sign ballasts with parallel wiring

 

Common Applications

• Backlit business signs
• Building fascia and display lighting
• Sign shop maintenance stock

 

Why Buy from Keystone Technologies?

• Wide 8'–48' T12HO coverage
• Universal voltage instant-start design
• Keystone UL Type 2 Outdoor sign platform

 

Why Buy from LeanLight?

• Fast & free shipping on every order (ships from Georgia)
• Volume and project discounts available
• 30-day satisfaction guarantee with easy returns
• Georgia-based lighting specialists since 2008