Circuit Protection
The Circuit Protection category covers a broad range of components used by controls engineers, panel builders, and machine builders to safeguard electrical systems from overcurrent, overvoltage, and unsafe isolation conditions. Typical product types include visible-blade disconnect switches for manual isolation and lockout/tagout compliance across a range of ampere ratings, control and machine-tool transformers for stepping down line voltage to safe control-circuit levels (commonly 24V or 120V secondary), and safety cable and rope-pull accessories for emergency-stop perimeter guarding on conveyor and machine-line applications. With over 4,000 stocked line items, the selection spans low-amperage branch-circuit protection through heavy industrial disconnect hardware rated to 400 A and above, supporting 120V single-phase through 480V three-phase installations in manufacturing, material handling, and process control environments.
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Out of Stock
1491-N121Allen-Bradley 1491-N121 Fuse Block,30 A,Class H Fuse,250V,1 Pole
$19.99 -
Out of Stock
1491-N122Allen-Bradley 1491-N122 Fuse Block,30 A,Class H Fuse,250V,2 Pole
$19.99 -
Out of Stock
1491-N125Allen-Bradley 1491-N125 Fuse Block, Class H, 0 30A, 3 Poles, 250V
$19.99 -
Out of Stock
1491-N126Allen-Bradley 1491-N126 Fuse Block,30 A,Class H and J Fuse,600V,3 Pole
$19.99 -
Out of Stock
1491-N161Allen-Bradley 1491-N161 Fuse Block,Class H Fuse,600V,1 Pole,30 A
$19.99 -
Out of Stock
1491-N226Allen-Bradley 1491-N226 Fuse Block, Class H, 31 60A, 3 Poles, 250V
$44.99 -
Out of Stock
1491-N266Allen-Bradley 1491-N266 Fuse Block,60 A,Class H and J Fuse,600V,3 Pole
$54.99 -
Out of Stock
1491-N333Allen-Bradley 1491-N333 Fuse Block,100 A,Class H and J Fuse,250 to 600V,3 Pole
$19.99 -
Out of Stock
1491-N433Allen-Bradley 1491-N433 Fuse Block,200 A,Class H and J Fuse,250 to 600V,3 Pole
$29.99 -
Out of Stock
1491-N521Allen-Bradley 1491-N521 Fuse Block,Class H Fuse,600V,1 Pole,400 A
$29.99 -
Out of Stock
1491-N621Allen-Bradley 1491-N621 Fuse Block,Class H Fuse,600V,1 Pole,600 A
$29.99 -
Out of Stock
1491-R125Allen-Bradley 1491-R125 Fuse Block, Class R, 0 30A, 3 Poles, 250V
$39.99 -
Out of Stock
1491-R126Allen-Bradley 1491-R126 Fuse Block,30 A,Class R Fuse,600V,3 Pole
$24.99 -
Out of Stock
1491-R150Allen-Bradley 1491-R150 Fuse Cover,1 Pole,Without Fuse,For Separate Mount Control Ci
$44.99 -
Out of Stock
1491-R162Allen-Bradley 1491-R162 Fuse Block,30 A,Class CC or Midget Fuse,600V,2 Pole
$64.99 -
Out of Stock
1491-R165Allen-Bradley 1491-R165 Fuse Block,30 A,Class CC or Midget Fuse,600V,1 Pole
$29.99 -
Out of Stock
1491-R167Allen-Bradley 1491-R167 Fuse Block,Class R Fuse,600V,2 Pole,30 A
$49.99 -
Out of Stock
1491-R169Allen-Bradley 1491-R169 Fuse Block,Class R Fuse,600V,3 Pole,30 A
$54.99 -
Out of Stock
1491-R171Allen-Bradley 1491-R171 Fuse Block,30 A,Class CC or Midget Fuse,600V,3 Pole
$59.99 -
Out of Stock
1491-R266Allen-Bradley 1491-R266 Fuse Block,60 A,Class R Fuse,600V,3 Pole
$64.99 -
Out of Stock
1491-R333Allen-Bradley 1491-R333 Fuse Block,100 A,Class R Fuse,250 600V,3 Pole
$79.99 -
Out of Stock
1491-R433Allen-Bradley 1491-R433 Fuse Block,Class R Fuse,600V,3 Pole,200 A
$29.99 -
Out of Stock
1491-R523Allen-Bradley 1491-R523 Fuse Block,Class R Fuse,600V,1 Pole,400 A
$74.99 -
Out of Stock
1491-R621Allen-Bradley 1491-R621 Fuse Block,600 A,Class R Fuse,250 600V,1 Pole
$39.99