FMX MCB1

189 Products

MCB1-4D-1P-B1

FMX Supplementary Protector, UL 1077, 277 VAC, 5 kA, 1-Pole, B Curve, 1A

In Stock
$16.85
QuantityPrice
MCB1-4D-2P-B1

FMX Supplementary Protector, UL 1077, 480 VAC, 5 kA, 2-Pole, B Curve, 1A

In Stock
$33.75
QuantityPrice
MCB1-4D-3P-B1

FMX Supplementary Protector, UL 1077, 480 VAC, 5 kA, 3-Pole, B Curve, 1A

In Stock
$50.70
QuantityPrice
MCB1-4D-1P-C1

FMX Supplementary Protector, UL 1077, 277 VAC, 5 kA, 1-Pole, C Curve, 1A

In Stock
$16.90
QuantityPrice
MCB1-4D-2P-C1

FMX Supplementary Protector, UL 1077, 480 VAC, 5 kA, 2-Pole, C Curve, 1A

In Stock
$33.80
QuantityPrice
MCB1-4D-3P-C1

FMX Supplementary Protector, UL 1077, 480 VAC, 5 kA, 3-Pole, C Curve, 1A

In Stock
$50.20
QuantityPrice
MCB1-4D-1P-D1

FMX Supplementary Protector, UL 1077, 277 VAC, 5 kA, 1-Pole, D Curve, 1A

In Stock
$17.10
QuantityPrice
MCB1-4D-2P-D1

FMX Supplementary Protector, UL 1077, 480 VAC, 5 kA, 2-Pole, D Curve, 1A

In Stock
$34.20
QuantityPrice
MCB1-4D-3P-D1

FMX Supplementary Protector, UL 1077, 480 VAC, 5 kA, 3-Pole, D Curve, 1A

In Stock
$50.85
QuantityPrice
MCB1-4D-1P-B1.6

FMX Supplementary Protector, UL 1077, 277 VAC, 5 kA, 1-Pole, B Curve, 1.6A

In Stock
$16.85
QuantityPrice
MCB1-4D-2P-B1.6

FMX Supplementary Protector, UL 1077, 480 VAC, 5 kA, 2-Pole, B Curve, 1.6A

In Stock
$33.75
QuantityPrice
MCB1-4D-3P-B1.6

FMX Supplementary Protector, UL 1077, 480 VAC, 5 kA, 3-Pole, B Curve, 1.6A

In Stock
$50.70
QuantityPrice
MCB1-4D-1P-C1.6

FMX Supplementary Protector, UL 1077, 277 VAC, 5 kA, 1-Pole, C Curve, 1.6A

In Stock
$16.90
QuantityPrice
MCB1-4D-2P-C1.6

FMX Supplementary Protector, UL 1077, 480 VAC, 5 kA, 2-Pole, C Curve, 1.6A

In Stock
$33.80
QuantityPrice
MCB1-4D-3P-C1.6

FMX Supplementary Protector, UL 1077, 480 VAC, 5 kA, 3-Pole, C Curve, 1.6A

In Stock
$50.20
QuantityPrice
MCB1-4D-1P-D1.6

FMX Supplementary Protector, UL 1077, 277 VAC, 5 kA, 1-Pole, D Curve, 1.6A

In Stock
$17.10
QuantityPrice
MCB1-4D-2P-D1.6

FMX Supplementary Protector, UL 1077, 480 VAC, 5 kA, 2-Pole, D Curve, 1.6A

In Stock
$34.20
QuantityPrice
MCB1-4D-3P-D1.6

FMX Supplementary Protector, UL 1077, 480 VAC, 5 kA, 3-Pole, D Curve, 1.6A

In Stock
$50.85
QuantityPrice
MCB1-4D-1P-B2

FMX Supplementary Protector, UL 1077, 277 VAC, 5 kA, 1-Pole, B Curve, 2A

In Stock
$16.85
QuantityPrice
MCB1-4D-2P-B2

FMX Supplementary Protector, UL 1077, 480 VAC, 5 kA, 2-Pole, B Curve, 2A

In Stock
$33.75
QuantityPrice
MCB1-4D-3P-B2

FMX Supplementary Protector, UL 1077, 480 VAC, 5 kA, 3-Pole, B Curve, 2A

In Stock
$50.70
QuantityPrice
MCB1-4D-1P-C2

FMX Supplementary Protector, UL 1077, 277 VAC, 5 kA, 1-Pole, C Curve, 2A

In Stock
$16.90
QuantityPrice
MCB1-4D-3P-C2

FMX Supplementary Protector, UL 1077, 480 VAC, 5 kA, 3-Pole, C Curve, 2A

In Stock
$50.20
QuantityPrice
MCB1-4D-1P-D2

FMX Supplementary Protector, UL 1077, 277 VAC, 5 kA, 1-Pole, D Curve, 2A

In Stock
$17.10
QuantityPrice

 OVERVIEW



• UL1077-rated Supplementary circuit breakers
• DIN rail mount chassis
• Current ratings up to 63A
• B, C, and D curve models to suit a wide range of applications
• Reverse feed capable
• 277VAC/60VDC, 5kA IR
• Easy-to-use, finger-safe, captive screws, box lugs

Applications
• SUPPLEMENTARY protection
• Intended for use downstream of a UL489 circuit breaker
• Individual component protection to keep parallel loads from tripping together
• Installed within control circuits, lighting, and appliances
• Protection of sensitive loads within enclosures such as PLC units, power supplies, condensation heaters, fans, and others