Description

Application Scenarios

In a large manufacturing facility’s DC common bus system, a short circuit in one drive module threatened to cascade and take down multiple production lines. The facility’s engineers relied on the Eaton Bussmann 170M5013 to provide precise, ultra-fast overcurrent protection. When a fault occurred on a 700A DC drive, the 170M5013 cleared the fault in microseconds, limiting the let-through energy and isolating the faulty section before it could damage adjacent drives or the main bus. This swift interruption prevented a costly production outage and thousands of dollars in potential equipment damage . The Eaton 170M5013 is essential for applications where semiconductor protection is critical, such as DC common buses, DC drives, power converters, rectifiers, and reduced voltage starters .

Parameters

Main Parameters	Value/Description
Product Model	170M5013 (Model Code: FUSE 700A 690V 2/80 AR UC)
Manufacturer	Eaton Bussmann Series (formerly Cooper Industries)
Product Category	High-Speed Square Body Semiconductor Fuse
Amperage Rating	700 A
Voltage Rating	690 V AC (IEC), 700 V AC (UL)
Interrupt Rating	200 kA (200,000 A)
Class	aR (Accompanied Semiconductor Protection)
Clearing I²t	405,000 A²s at 660 V
Pre-Arc I²t	60,500 A²s
Watt Loss	95 W at rated current
Dimensions (L × W × H)	286 mm × 165 mm × 66 mm
Fuse Size	DIN 2 (per DIN 43653)
Indicator	Top Fuse Status Indicator
Termination	Blade End × Blade End
Mounting	Live Gripping Lugs, M10 Stud Mount
Weight	Approximately 596 g

Technical Principles and Innovative Values

Innovation Point 1: Ultra-Fast Semiconductor Protection. The Eaton Bussmann 170M5013 is designed with a specialized fusible element that responds to overcurrent conditions within milliseconds. Unlike general-purpose fuses, the 170M5013 features an aR class characteristic that ensures rapid clearing of short-circuit currents before they can damage sensitive power semiconductors. This fast-acting response is critical for protecting expensive devices like IGBTs and thyristors, which have very low overload tolerance. The fuse’s total clearing I²t of 405,000 A²s at 660V ensures that let-through energy is minimized during fault conditions .

Innovation Point 2: Excellent DC Performance and Low Arc Voltage. The 170M5013 excels in DC applications, offering superior performance on DC common bus systems where arc extinction is more challenging than in AC circuits . The fuse design ensures a low arc voltage during interruption, reducing stress on the protected semiconductors and the overall system. This low arc voltage characteristic, combined with low watt loss, makes the Eaton 170M5013 highly efficient in continuous operation .

Innovation Point 3: Superior Cycling Capability. Industrial drives and converters experience frequent power cycling due to varying loads. The Bussmann 170M5013 is engineered with superior cycling capability, meaning it can withstand repeated inrush currents and normal operational variations without degradation. This durability reduces the need for premature replacements and minimizes unplanned downtime .

Innovation Point 4: Visual Status Indicator for Easy Maintenance. The Eaton 170M5013 includes a top fuse status indicator that provides a clear visual signal when the fuse has operated. This simplifies troubleshooting and speeds up maintenance, as technicians can quickly identify blown fuses without needing to test each one individually. The indicator is especially valuable in large control panels or remote installations where access is limited .