For more than 20 years, America's leading companies have trusted Tripp Lite's Isobar Premium surge and noise suppressors to protect sensitive computer, networking and telecom equipment. With more than 14 million satisfied customers, the ISOBAR remains the world's #1 selling premium surge suppressor. Loaded with a generous combination of high quality components, near indestructible all-metal case and unique noise filtration system, Isobars offer the highest levels of protection. Robust surge suppression circuits with sine-wave tracking offer extreme levels of protection against the heaviest surge conditions. Isobar's unique protection system combines large torroidal chokes, HF/VHF capacitors and multiple metal oxide varistors that remove high level surges and EMI/RFI interference. UltraBlok 428 offers 2 outlets arranged with standard wall socket spacing in a cordless direct plug-in format. Mounting tabs allow permanent connection via duplex switchplate screw. Surge suppression rated at 600 joules / 48,000 amps offers high-grade protection. Diagnostic LEDs confirm power availability, line fault and protection status. Lifetime warranty with $10,000 Ultimate Lifetime connected equipment Insurance (USA & Canada Only).

PLUG / OUTLETS: Input: NEMA 5-15P / Output: 2 NEMA5-15R

ELECTRICAL: 120V AC, 50/60Hz, 15A (Requires NEMA 5-15R wall receptacle)

SUPPRESSION: AC: 140V RMS Clamping / 600 joules / 48,000 amps

FORMAT: Direct plug in, receptacle mount form factor

• Tripp Lite's ISOBAR is the world's #1 selling premium suppressor series with more than 14 million satisfied customers and a safety-tested history of 20+ years
• Robust surge suppression with sine-wave tracking protects against the heaviest of surge conditions, exceeding IEEE category A specifications
• Multi-component suppression circuits combine torroidal chokes, HF/VHF capacitors and metal oxide varistors
• 2 outlets with standard duplex wall outlet spacing offer convenient wall receptacle mount placement. Included mounting tab allows permanent connection via wall receptacle switch plate screw.
• Heavy grade surge suppression rated at 600 joules / 48,000 amps
• 3 LED indicators confirm suppressor operation and site wiring status, plus warning of suppressor or electrical fault conditions
• 120V AC, 50/60Hz, 15A electrical compatibility
• $10,000 Ultimate Lifetime Insurance (USA & Canada Only)
• Lifetime product warranty
• UL1449 listed - surge suppression (400V let-through), UL1283 listed - EMI protection, UL1363 listed - power tap, cUL approved to Canadian standards

• Ideal for premium AC protection for personal computers with peripherals, network and CAD/CAM/CAE workstations, internetworking accessories, telecommunications systems, point of sale equipment, audio/video and home theater systems in any home, office or industrial application.

• ULTRABLOK428 premium surge suppressor
• Instruction manual and warranty information