Power Breakers, Contactors and Fuses Power Breakers, Contactors 3.1 Power Circuit Breakers 3 and Fuses Family Low Voltage Power Circuit Breakers . V4-T3-2 Magnum DS Low Voltage Power Circuit Breakers . V4-T3-6 3 Magnum MDSL Current Limiting Power Circuit Breaker . V4-T3-12 Magnum SB Low Voltage Insulated Case Circuit Breakers. V4-T3-15 3 Magnum IEC Rated Air Circuit Breakers . V4-T3-23 3 Magnum DC (Direct Current) Low Voltage Switches . V4-T3-33 Series NRX Low Voltage Power Circuit Breakers with PXR . V4-T3-35 3 Series NRX Low Voltage Power Circuit Breakers with Digitrip . V4-T3-47 Medium Voltage Circuit Breakers . V4-T3-55 3 3.2 Medium Voltage Power Contactors 3 Product Overview . V4-T3-72 3 SL MV Power Contactor 7.2 kV/160–400A. V4-T3-74 SL MV Power Contactor 7.2 kV/800A . V4-T3-83 3 SL MV Power Contactor 15 kV/300A. V4-T3-87 3 3.3 Fuses General Product Overview . V4-T3-91 3 Power Fuse . V4-T3-91 Power vs. Distribution . V4-T3-91 3 Low vs. Medium vs. High Voltage. V4-T3-91 3 Expulsion vs. Current Limiting (Definitions per ANSI C47.40-1993). V4-T3-92 Fuse Types. V4-T3-92 3 General Fuse Component Terms. V4-T3-92 3 3.4 Expulsion Fuses Product Description. V4-T3-94 3 Accessories . V4-T3-94 3 Catalog Number Selection . V4-T3-95 Product Selection . V4-T3-96 3 3.5 Current Limiting Fuses 3 Catalog Number Selection . V4-T3-115 Product Selection . V4-T3-117 3 3 3 3 3 3 3 3 3 3 3 Volume 4—Circuit Protection CA08100005E—July 2017 www.eaton.com V4-T3-1 Revision notes Volume 4—Circuit Protection, CA08100005E Tab 3—Power Breakers, Contactors and Fuses Revision date Section Change page(s) Description 06/09/2017 3.1 V4-T3-1 Updates to TOC 06/09/2017 3.1 V4-T3-35– V4-T3-46 New Series NRX Low Voltage Power Circuit Breakers with PXR inserted 06/09/2017 3.1 V4-T3-47 Update to product name (Series NRX Low Voltage Power Circuit Breakers with Digitrip) 07/05/2017 All All Footer revision date changed to July to match updated print version Power Breakers, Contactors and Fuses 3.1 Power Circuit Breakers 3 Power Circuit Breaker Contents Description Page 3 Low Voltage Power Circuit Breakers Features, Benefits and Functions . V4-T3-3 3 Magnum DS Low Voltage Power Circuit Breakers . V4-T3-6 3 Magnum MDSL Current Limiting Power Circuit Breaker . V4-T3-12 3 Magnum SB Low Voltage Insulated Case Circuit Breakers . V4-T3-15 3 Magnum IEC Rated Air Circuit Breakers . V4-T3-23 Magnum DC (Direct Current) Low Voltage 3 Switches. V4-T3-33 Series NRX Low Voltage Power Circuit 3 Breakers with PXR . V4-T3-35 Series NRX Low Voltage Power Circuit 3 Breakers with Digitrip . V4-T3-47 Medium Voltage Circuit Breakers . V4-T3-55 3 3 Low Voltage Power Circuit Breakers 3 Product Overview 3 Magnum Low Voltage Power Four Product Families Circuit Breakers for Global Magnum consists of four Magnum DS Low Voltage Magnum IEC Air Circuit 3 Application product families; each Power Circuit Breakers for Breakers for IEC Rated Magnum® low voltage provides specific ratings, ANSI Rated Switchgear Switchboards power circuit breakers enable features and approvals to Applications ● 3 comprehensive solutions to optimize performance when Up to 690 Vac ● meet and exceed the unique applied in power distribution Up to 635 Vac ● 200 to 6300 A continuous 3 and wide-ranging ● 200 to 5000 A continuous ● equipment and custom 40 to 105 kA Icu/Ics requirements of today’s enclosures. ● 42 to 200 kA interrupting 3 global power distribution systems. This powerful circuit breaker offering is 3 designed for ultimate custom configuration and application 3 flexibility, with the needs of the power distribution equipment user and the Magnum DS Low Voltage Power Circuit 3 Breaker Family ANSI Rated for electrical equipment Switchgear Applications manufacturer in mind. Magnum IEC Low Voltage Air Circuit 3 Breaker Family Magnum SB Low Voltage 3 Insulated Case Circuit Magnum DC Switches for Breakers for Switchboard Direct Current Applications Applications 3 ● Up to 1000 Vdc ● Up to 635 Vac ● 800 to 3200 A continuous ● 200 to 5000 A continuous 3 ● 50 to 65 kA withstand ● 50 to 150 kA interrupting rating 3 3 3 Magnum SB Low Voltage Insulated 3 Case Circuit Breaker Family UL Rated Magnum DC Switch Family for Switchboard Applications 3 3 V4-T3-2 Volume 4—Circuit Protection CA08100005E—July 2017 www.eaton.com Power Breakers, Contactors and Fuses Power Circuit Breakers 3.1 Features, Benefits and Functions 3 ● 200 kA interruption ● Two-step stored energy ● Field-installable ratings with current mechanism for manually accessories (UL® listed) limiting performance and and electrical operated common across the 3 low current let-through to breakers breaker frames and reduce damaging energy ● Digitrip™ RMS Trip Unit designed to be easily 3 to downstream equipment family protection with installed in the field to at high fault levels four models each providing service or modify the 3 ● Withstand ratings up to increasing levels of breaker at the point of use 100 kA to maximize protection and feature ● Secondary terminal 3 system coordination and options for coordination, contacts mounted at the selectivity information and top front of the breaker and 3 ● Four physical frame sizes diagnostics: away from the primary (Narrow, Standard, Double ● Microprocessor-based voltage areas for improved Narrow and Double) rms sensing safety and access. Finger- 3 safe terminal blocks to promote breaker ● Basic to programmable application in compact overcurrent protection accommodate ring-tongue 3 modular enclosures and and alarms or spade type terminals as improve enclosure density standard ● Local display for Through-the-Door Design for Human 3 ● ● Continuous current Arcflash Reduction Interface with the Breaker information, status Compartment Door Closed ratings from 800 to and diagnostics Maintenance System 3 Eaton’s patented Arcflash 6300A with 100% rating ● Ampere, voltage and Reduction Maintenance at 104 ºF (40 ºC) and no power metering 3 derating on most ratings System technology ● up to 122 ºF (50 ºC) Power quality, provides maintenance staff harmonics and 3 ● with improved safety of Fixed breaker mounting waveform capture configurations with downstream maintenance ● horizontal and optional Communications with locations using a simple 3 vertical and front translators to common and reliable method to connected terminal protocols reduce fault clearing times 3 connections ● Zone selective and energy during an arc interlocking for flash event (radiation, ● Drawout breaker 3 improved coordination sound, pressure, mounting configurations temperature). Arcflash ● Integral Arcflash with cassette and optional Reduction Maintenance Reduction Maintenance 3 safety shutters System uses a separate System™ ● Three- and four-pole analog trip circuit, providing 3 breaker configurations ● Breaker health faster signal processing High Technology Microprocessor- ● monitoring Based Digitrip RMS 1150+ Trip Units are Through-the-door design and interruption times than Available With Advanced Features Like 3 for human interface with the standard (digital) Programmable Overcurrent Settings, the breaker compartment “instantaneous” protection. Power Metering, Power Quality and Communications door closed The Arcflash Reduction 3 ● DC rated switches for Maintenance System direct current applications function is activated either 3 directly on the circuit breaker through a local 3 switch or remotely through communications or a digital input 3 3 3 3 3 3 3 3 3 Volume 4—Circuit Protection CA08100005E—July 2017 www.eaton.com V4-T3-3 Power Breakers, Contactors and Fuses 3.1 Power Circuit Breakers 3 Breaker Features on Front Cover Magnum DS Drawout Breaker The controls and indicators 3 1 2 are functionally grouped on 3 the breaker faceplate to optimize the human 3 interface, visibility and ease of use. For maximum safety, 3 a modern, through-the-door 4 design permits access to the 3 breaker levering system, trip 5 unit, controls and indicators 6 with the door closed. 7 3 1 Red Mechanical Trip Flag 3 Pop-out Indicator (Optional)—Interlocked 8 Indicator Requiring 3 Manual Reset is also Available 9 3 2 Accessory Viewing Windows for: 3 j ● Shunt Trip Attachment 3 (STA) k ● Spring Release Device 3 (SR) l ● Undervoltage Release 3 (UVR) Device or Second STA 3 3 Digitrip RMS Trip Unit (Model 520M Shown) 3 Protected by Clear Cover 4 3 Contact Status Indicators: ● OPEN—Green 3 ● CLOSED—Red 5 Spring Status Indicators: 3 ● Charged—Yellow Accessory Viewing Windows Visibly Confirm the Breaker Shunt Trip, Spring 3 ● Discharged—White Release, and UVR Installation and Their 6 Control Voltage Rating Push OFF (Open) Drawout Breaker Levering Can be Accomplished With the Compartment 3 Pushbutton—Red Door Closed Without the Need for a 7 Special Levering Tool Push ON (Close) Through-the-Door Design for Human 3 Pushbutton—Green Interface with the Breaker 8 Compartment Door Closed, for Example, 3 Manual Spring Charging Manually Charging the Stored Handle for Manually Energy Springs Charging the Stored 3 Energy Springs 9 3 Mechanical Operations Counter (Optional) 3 j Key Off Lock (Optional) k Padlockable Levering 3 Device Shutter for 3 Drawout Breakers l Color-Coded Position 3 Indicator for Drawout Breakers: 3 ● CONNECT—Red ● TEST—Yellow 3 ● DISCONNECT—Green V4-T3-4 Volume 4—Circuit Protection CA08100005E—July 2017 www.eaton.com Power Breakers, Contactors and Fuses Power Circuit Breakers 3.1 Breaker Internal Features 6 3 1 3 Magnum is designed for ease Padlockable Levering of access for inspection, Device Shutter for modification and Drawout Breakers 3 maintenance at the point of 7 2 use. The breaker front cover Color-Coded Position 3 is easily removed with four Indicator for Drawout captive bolts, revealing the Breakers: 3 modular internal breaker ● CONNECT—Red features.