TRIPP LITE

Tripp Lite Isobar ULTRABLOK Heavy Duty Outlet Extender, Wall Power Strip Surge Protector, 2 Outlets, Direct Plug-in, Black, Metal Power Strip, Industrial Garage Work Shop Bench

Name: Tripp Lite Isobar ULTRABLOK Heavy Duty Outlet Extender, Wall Power Strip Surge Protector, 2 Outlets, Direct Plug-in, Black, Metal Power Strip
Brand: TRIPP LITE
SKU: B00006B81D
Price: 43.99 USD
Availability: InStock

By Mike Perry, Hardware Editor · Verified 2026-09-11

Mike Perry has researched PC hardware since 2014, tracking 80+ GPU generations, 50+ retro handheld platforms, and 30+ vintage PC configurations. He synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. View full credentials →

$43.99

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View Current Price on Amazon → Compare to similar home & kitchen

*Price sourced from Amazon.com. Price and availability subject to change.

Bottom line: The Tripp Lite Isobar ULTRABLOK Heavy Duty Outlet Extender, Wall Power Strip Surge Protector, 2 Outlets, Direct Plug-in, Black, Metal Power Strip, Industrial Garage Work Shop Bench is a specs-and-price decision rather than a crowd-consensus one in the home & kitchen category, priced around $43.99. Check the specification table above against one or two close alternatives — on price and spec fit, not on star ratings.

The Tripp Lite Isobar ULTRABLOK is a 2-outlet direct plug-in surge protector built for equipment you cannot afford to lose. Its 1410-joule rating and all-metal housing handle the kind of surges that destroy plastic-cased strips, and the 330V clamping voltage is the lowest let-through rating available under UL 1449 3rd Edition. What separates Isobar from ordinary wall taps is power conditioning: patented isolated filter banks keep connected devices from feeding noise into each other, and EMI/RFI line noise is blocked up to 80 dB, which matters when a router, an amplifier, or shop equipment…

SpecPicks Verdict

SpecPicks scored Tripp Lite Isobar ULTRABLOK Heavy Duty Outlet Extender, Wall Power… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the home & kitchen category. TRIPP LITE's home & kitchen lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for home & kitchen of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Frequently Asked Questions

How many joules of surge protection does this have?

It is rated at 1410 joules, and it conforms to UL 1449 3rd Edition with a 330V clamping voltage, which is the best let-through rating in that standard.

How many outlets does the ULTRABLOK have?

Two NEMA 5-15R outlets. It is a direct plug-in wall unit with no cord, designed to replace a single receptacle rather than expand it widely.

What do the three LEDs on the front mean?

They are diagnostic indicators for power, protection status, and line fault, so you can confirm at a glance that surge protection is still active.

What happens when the surge protection wears out?

A built-in 15A circuit breaker shuts the unit off automatically if the protection circuit is incapacitated, so the outlets do not keep passing unprotected power.

Is there a warranty or equipment guarantee?

Yes. Tripp Lite covers it with a Lifetime Limited Manufacturer's Warranty and $10,000 Ultimate Connected Equipment insurance, with Eaton support by phone, web, and email.

Pros & Cons

Pros

✓ Backed by TRIPP LITE's warranty and support channels
✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

HEAVY-DUTY OUTLET EXTENDER: Features 2-outlets, a robust 1410-joule rating, and a sturdy all-metal housing. Ensure comprehensive protection for your valuable electronics, including network, garage, Audio/Video, and industrial equipment.
POWER CONDITIONING: Patented design features exclusive isolated filter banks that limit noise interaction among connected devices. Also blocks EMI/RFI line noise up to 80 dB, ensuring optimal performance of your devices.
PREMIUM SAFETY FEATURES: Conforms to UL 1449 3rd Edition safety standards and features the best possible Let Through Rating or Clamping Voltage of 330V. Includes a 15A circuit breaker with automatic shutoff if the protection circuit is incapacitated.
COMPACT DESIGN: The direct plug-in design saves space and reduces clutter all while ensuring comprehensive protection. Three diagnostic LEDs provide easy-to-read status updates for power, protection, and line faults, ensuring reliable use.
FULLY BACKED AND SUPPORTED: This product is protected by a Lifetime Limited Manufacturer's Warranty and $10,000 Ultimate Connected Equipment insurance. This device is also supported by Eaton's expert technical support team over phone, web and email.

Full Specifications

Brand	TRIPP LITE
Color	Black
Shape	Rectangle
Voltage	120 volts
Amperage	15 A
Plug Type	Type B
Unit Count	1 Count
Model Number	ULTRABLOK
Maximum Current	15 A
Mfr Part Number	ULTRABLOK
Number of Ports	2
Power Plug Type	Type B - 3 pin (North American)
Special Feature	Light Indicator, Surge Protection
Number of Outlets	2
Compatible Devices	Gaming Console, Home Theater, Laptop, Personal Computer, Refrigerator
Enclosure Material	Metal
Total Power Outlets	2
Warranty Description	Lifetime limited warranty
Item Dimensions L x W	5.7"L x 4"W
Recommended Uses For Product	Apartment, Office

Ready to buy?

Tripp Lite Isobar ULTRABLOK Heavy Duty Outlet Extender, Wall Power Strip Surge Protector, 2 Outlets, Direct Plug-in, Black, Metal Power Strip, Industrial Garage Work Shop Bench is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Current Price on Amazon →

*Price sourced from Amazon.com. Price and availability subject to change.