CIRCUIT PROTECTION

Whether you prefer circuit breakers, fuses, or other types of short circuit protection, AutomationDirect carries a full selection of devices at incredible prices. Molded Case Circuit Breakers (MCCB) Supplementary Protector Breakers Electrical Fuses, Fuse Holders & Fuse Blocks UL 508 Non-Fused Panel Disconnect Switches UL 98 Fusible & Non-Fusible Disconnect Switches Circuit Protection Guide (674 KB)

Circuit Protection Products

	New! ... UL489 Rated Molded Case Circuit Breakers (MCCBs) - Fuji Electric Fuji Molded Case Circuit Breakers are more compact (especially 125A, 250A frames) than any breakers on the market, so control panels take up less space than ever before. This product group maintains conformity to all Worldwide standards, including UL / cULus / IEC / CE Marking / JIS (Japan) / CCC (China). Suitable for feeder and branch circuits 5 Frame sizes, rated current of 15 to 800A, Max 600V Standard type and high-interrupting capacities are available in identically sized breakers Shunt Trip, Undervoltage Release and other accessories are available Auxiliary Switch and Shunt Trip can be installed in the field		UL489 Rated Molded Case Circuit Breakers (MCCBs) - Eaton Corp. MCCBs made by Eaton Corporation (manufacturer of Cutler-Hammer products) provide UL489 listed performance for branch circuit overcurrent protection and disconnecting means. These parts are available for sale in North America only. Small size of MCCBs saves panel space Patented contact conductor design featuring high-speed "blow-open" action Advanced arc extinguishing technology Toggle handle that provides three positions (on/ off/ tripped) Visual handle position indicators Accessories - handles, auxiliary contacts, shunt trips and undervoltage releases 4 Frame sizes, rated surrent of 15A to 600A
	Supplementary Protector Breakers The Cutler-Hammer™ WMS series Supplementary Protector breakers from Eaton Corporation are used to provide overcurrent protection where branch protection (for example, UL 489 MCCB) is already provided or not required. These parts are available for sale in North America only. Ideal replacement for fuses that are applied as a supplementary protector Recognized by UL and CSA under UL 1077 and CSA 22.2 Marked in accordance with Low Voltage Directive (LVD) (73/ 23/ EEC) C Curve supplementary protectors in addition to B and D Curve		UL98 Rated Fusible & Non-Fusible Disconnect Switches The AutomationDirect circuit protection products line now includes 600 VAC / 250 VDC heavy-duty fusible and non-fusible disconnects from Ferraz Shawmut. The series is designed with the most up-to-date power disconnect technology available - "make and break" power circuits on load. SIRCO Series: Non-Fusible disconnects FUSERBLOC Series: Fusible disconnects Meet UL98 standards and are UL, CSA, CE and IEC rated Handles are available to meet OSHA padlocking requirements, NEMA configurations, defeater options and NFPA 79 requirements
	UL508 Non-Fusible Load Disconnect Switches The SD series of modular disconnect switches is used for breaking and disconnecting on low voltage equipment loads at nominal current from 16 to 125 Amps. These power disconnects are 35 mm DIN rail mountable or screw mountable and come with a wide range of accessories. SD1 series - allow breaking and disconnecting on low voltage equipment loads at a nominal current range from 16 Amps to 40 Amps SD2 series - allow breaking and disconnecting on low voltage equipment loads at a nominal current range from 63 Amps to 125 Amps Most commonly used for Main switch, Switch for motors, Safety switch, and other disconnect applications UL 508 rated		Electrical Fuses, Fuse Holders and Fuse Blocks AutomationDirect offers the Edison line of fuse products which includes a wide variety of electrical fuses and accessories. Edison Fuse is a subsidiary of Cooper Industries, the worldwide leader in circuit protection. Edison fuses are available in two classes and feature: Current Limiting: Class CC, J, RK General Purpose: Class M Midget and Small Dimension Direct replacements for other name-brand fuses such as Littelfuse, Siemens, and many more DIN rail mount fuse holders feature multiple-pole configurations, finger-safe protection, and are UL 94V-0 rated. Panel-mount fuse blocks are a pressure plate type with quick disconnect
	New! ... Terminal Block Protectors DN-FE series terminal block sockets accept separately available circuit disconnects or supplementary protectors. The DN-FE blocks are available either with or without a trip indicating LED. EURO series mini single-pole UL1077 supplementary protectors (DN-SUPP-xx), UL, CSA and VDE agency approvals Disconnect Blade (DN-DIS-BLADE)

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