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, unique noise filtration system and built-in single line phone suppression for modems, the Isobar/Isotel series offers the highest level of protection attainable in a multi-outlet strip. Robust surge suppression circuits with sine-wave tracking offer extreme levels of protection against the heaviest surge conditions exceeding IEEE 587 category A & B specifications and reducing 6,000V test surges to harmless levels under 35 volts. Isobar's unique protection system combines large torroidal chokes, ferrite rod-core inductors, HF/VHF capacitors and multiple layers of metal oxide varistors into exclusive isolated filter banks that remove EMI/RFI interference, even noise generated by other pieces of connected equipment. ISOTEL4ULTRA offers 4 outlets arranged in two filter banks to prevent system crashes, reboots and performance problems common as noisy system peripherals are powered off and on. Surge suppression rated at 3330 joules/92,000 amps offers network-grade p

• ISOTEL4ULTRA
• ISOTEL4ULTRA premiun surge suppressor
• RJ11 telephone cable
• Set of 4 outlet safety covers
• Instruction manual with warranty information

• Tripp Lite's ISOBAR / ISOTEL 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&B specifications and reducing 6,000V test surges to harmless levels less than 35 volts.
• Multi-component suppression circuits combine torroidal chokes, ferrite rod-core inductors, HF/VHF capacitors and multiple layers of metal oxide varistors into exclusive isolated filter banks that remove EMI/RFI interference, even noise from other pieces of connected equipment
• Single phone line surge suppression protects modems, fax machines and cordless phones (2 wire, single line, RJ11 jacks)
• 4 outlets arranged in two filter banks prevent system crashes, reboots and performance problems common as noisy peripherals are powered off and on
• Network grade surge suppression rated at 3330 joules / 92,000 amps
• Widely spaced outlets accommodate up to 2 large transformer plugs without blocking outlets
• 3 LED indicators confirm suppressor operation and site wiring status, plus warning of suppressor or electrical fault conditions
• Lighted power switch confirms power on/off status
• 6 foot AC line cord with space-saving angled input plug
• Keyhole mounting tabs allow permanent installation
• Set of 4 outlet covers safely seal off unused outlets
• 120VAC, 50/60Hz electrical compatibility
• $50,000 Ultimate Lifetime Insurance (USA & Canada Only)
• Lifefime product warranty
• UL1449 listed - surge suppression (330V let-through), UL1283 listed - EMI protection, UL1363 listed - power tap, UL497A listed - communications suppression, cUL approved to Canadian standards, Complies with part 68 - FCC rules