


3P Standard Bolt On Circuit Breaker 20A 240VAC
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
3P Standard Bolt On Circuit Breaker 20A 240VAC'Bolt On Circuit Breaker, 20 Amps, Number of Poles 3, Circuit Breaker Type Standard, AC Voltage Rating 240VAC, DC Voltage Rating 48VDC, For Use With Square D NQOD Panelboards, Series QOB, Terminal Connection Screw Clamp, Max. AIR Rating 10kA, Frame Size 100A QO, Min. Wire Size 14 AWG, Max. Wire Size 8 AWG, Length 3. 00 In., Width 2. 25 In., Depth 2. 91 In., Standards UL Listed, CSA Certified'
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4.5 ★★★★★
Based on 1009 reviews
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Product Reviews
★★★★★ 5
Good bang for your buck, great quality.
Works great. Most of it is metal and works as a heat sink. Came with two fuses and the adapters for smaller or larger Guage wires. Fit very well and easily for our choice of installation and was a great price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2025
★★★★★ 5
Good for under the hood
Pretty good heavy duty block. It's got the rubber grommets for the smaller wire if needed.
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Reviewed in the United States on January 1, 2026
★★★★★ 5
Easy install
Excellent easy install
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 11, 2026
★★★★★ 5
These are best quality ones ever had since I did been doing car audio
Great quality and durability
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 8, 2026
★★★★★ 5
Well worth it
Very sturdy and well built.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
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