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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1492-SPM3D030Allen-Bradley 1492-SPM3D030 Supplementary Protectors, 3 Pole Configuration, Trip Curve D
$84.99 -
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1492-SPM3D030-NAllen-Bradley 1492-SPM3D030-N Supplementary Protectors, 3 Pole Configuration, Trip Curve D
$84.99 -
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1492-SPM3D040Allen-Bradley 1492-SPM3D040 Supplementary Protectors, 3 Pole Configuration, Trip Curve D
$84.99 -
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1492-SPM3D040-NAllen-Bradley 1492-SPM3D040-N Supplementary Protectors, 3 Pole Configuration, Trip Curve D
$84.99 -
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1492-SPM3D050Allen-Bradley 1492-SPM3D050 Supplementary Protectors, 3 Pole Configuration, Trip Curve D
$84.99 -
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1492-SPM3D050-NAllen-Bradley 1492-SPM3D050-N Supplementary Protectors, 3 Pole Configuration, Trip Curve D
$84.99 -
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1492-SPM3D060Allen-Bradley 1492-SPM3D060 Supplementary Protectors, 3 Pole Configuration, Trip Curve D
$84.99 -
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1492-SPM3D060-NAllen-Bradley 1492-SPM3D060-N Supplementary Protectors, 3 Pole Configuration, Trip Curve D
$84.99 -
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1492-SPM3D070Allen-Bradley 1492-SPM3D070 Supplementary Protectors, 3 Pole Configuration, Trip Curve D
$84.99 -
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1492-SPM3D070-NAllen-Bradley 1492-SPM3D070-N Supplementary Protectors, 3 Pole Configuration, Trip Curve D
$84.99 -
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1492-SPM3D080Allen-Bradley 1492-SPM3D080 Supplementary Protectors, 3 Pole Configuration, Trip Curve D
$84.99 -
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1492-SPM3D080-NAllen-Bradley 1492-SPM3D080-N Supplementary Protectors, 3 Pole Configuration, Trip Curve D
$84.99 -
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1492-SPM3D100Allen-Bradley 1492-SPM3D100 Supplementary Protectors, 3 Pole Configuration, Trip Curve D
$84.99 -
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1492-SPM3D100-NAllen-Bradley 1492-SPM3D100-N Supplementary Protectors, 3 Pole Configuration, Trip Curve D
$84.99 -
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1492-SPM3D130Allen-Bradley 1492-SPM3D130 Supplementary Protectors, 3 Pole Configuration, Trip Curve D
$84.99 -
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1492-SPM3D130-NAllen-Bradley 1492-SPM3D130-N Supplementary Protectors, 3 Pole Configuration, Trip Curve D
$84.99 -
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1492-SPM3D150Allen-Bradley 1492-SPM3D150 Supplementary Protectors, 3 Pole Configuration, Trip Curve D
$84.99 -
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1492-SPM3D150-NAllen-Bradley 1492-SPM3D150-N Supplementary Protectors, 3 Pole Configuration, Trip Curve D
$84.99 -
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1492-SPM3D160Allen-Bradley 1492-SPM3D160 Supplementary Protectors, 3 Pole Configuration, Trip Curve D
$84.99 -
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1492-SPM3D160-NAllen-Bradley 1492-SPM3D160-N Supplementary Protectors, 3 Pole Configuration, Trip Curve D
$84.99 -
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1492-SPM3D200Allen-Bradley 1492-SPM3D200 Supplementary Protectors, 3 Pole Configuration, Trip Curve D
$84.99 -
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1492-SPM3D200-NAllen-Bradley 1492-SPM3D200-N Supplementary Protectors, 3 Pole Configuration, Trip Curve D
$84.99 -
Out of Stock
1492-SPM3D250Allen-Bradley 1492-SPM3D250 Supplementary Protectors, 3 Pole Configuration, Trip Curve D
$84.99 -
Out of Stock
1492-SPM3D250-NAllen-Bradley 1492-SPM3D250-N Supplementary Protectors, 3 Pole Configuration, Trip Curve D
$84.99