Littelfuse, Inc.
Electrical Industry Company Profile
Product Data
Part#: L70QS400
FUS 700V SEMICONDUCTOR 400A
Part#: L70QS500
FUS 700V SEMICONDUCTOR 500A
Part#: L50QS125
FUS 500V SEMICONDUCTOR 125A
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Catalogs
PROTECTION RELAYS & CONTROLS CATALOG
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Videos
Littelfuse, Inc.
Prevention through Design with Special-Purpose GFCIs
With power comes great responsibility. Hundreds of workers are killed yearly from electrical shock, and tens of thousands of electrical shock incidents over the past several years resulted in injuries requiring time away from work. Find out how GFCIs, including commercial GFCIs and specialized ones with higher trip levels, effectively prevent such incidents. More Info
Littelfuse, Inc.
Prevent Electrical Shock In Commercial and Industrial Applications
Shock Block stops the problem before it happens by interrupting circuit faults before shock occurs instead of simply mitigating electrical shock.
Shock Block is the most comprehensive UL 943C listed GFCI on the market. Other workaround product combinations are inadequate when it comes to meeting code requirements or, more importantly, protecting human life.
Shock Block is the most comprehensive UL 943C listed GFCI on the market. Other workaround product combinations are inadequate when it comes to meeting code requirements or, more importantly, protecting human life.
More Product Videos
- How to Size a Neutral Grounding Resistor
- Maximizing Your HVAC Applications for Optimal Performance
- Littelfuse POWR SPEED High-Speed Fuses Overview
- Learn how to calculate and increase the SCCR
- Circuit Protection for Renewable Energy Systems
- Best Surge Protection Installation Practices for PV Systems
- How to Select the Right Surge Protection for PV Systems
- How to Protect Your Solar Applications from Lightning
- Littelfuse SPD2 Series of Type 2 Surge Protection Devices
- Littelfuse PSR Series High-Speed Fuses
- All Videos...
Products
How to Properly Protect a BESS Power Circuit from Overcurrents
A battery energy storage system requires proper circuit protection. Overcurrents not only frequently damage systems, but are also the culprit of downtime, which is detrimental to a company’s bottom line. Fuses are a great way to protect a system simply and cost-effectively. Learn how to properly protect a BESS power circuit from overcurrents with this application guide.
Press Releases
Littelfuse Launches Its Class J Fuse Disconnect Switch
Product combines switch and fuses to simplify operation and protection while saving space
More Press Releases
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Two Wire Electric Supply Co. • 835 S West St. • Jackson, MS 39201
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