Mersen Industrial Automation Spare Parts

The Square Body High-Speed Fuse Link gR is engineered for effective protection in railway power and auxiliary circuits. Rated at 100A and 750VDC, this fuse link is suitable for modern DC equipment, designed to operate at higher temperatures than standard fuses. It exhibits a clearing I²t rating of 40 kA²s, ensuring minimized damage to connected components during short circuit conditions.With a melting I²t of 3.01 kA²s, the fuse link effectively limits energy dissipation, contributing to its longevity. The power dissipation at rated current is measured at 16.7 W. Constructed with a ceramic insulating body and silver-plated brass terminals, it features end contacts with threaded holes for secure bolted mounting. Its maximum rated breaking capacity is 100 kA, making it a critical component for safe and reliable circuit protection. This product is part of the Protistor® line, recognized for its specialized DC fuse links.

The Protistor® fuse-links, rated for 690V IEC and 700V UL, offer versatility in equipment design while ensuring optimal protection for modern power conversion systems. With an ampere rating of 550A, these ultra-fast acting fuses are compatible with various worldwide mounting styles and sizes.Engineered specifically for safeguarding semiconductors such as diodes, thyristors, and IGBT devices, these fuse-links utilize die-cut elements embedded in solidified sand, which effectively manages arcing characteristics, resulting in a lower I²t and a high interrupting rating of 200 kA. The Designation Code associated with this product line is Protistor® size 32 aR, spanning from 450 to 690VAC (IEC) and 700VAC (UL).Constructed with silver-plated contact surfaces and non-magnetic hardware, this fuse-link also features a low voltage trip-indicator option that can activate a field mountable microswitch, enhancing operational safety and monitoring capabilities. The body is made from ceramic insulating material, and the connection terminals are crafted from silver-plated brass, ensuring reliable performance under rated conditions.

The Size 72 type LI slotted blades aR fuse-links are designed for high-performance applications, providing protection for power conversion equipment. Rated at 315 A and capable of handling voltages up to 1250 VAC (IEC) and 1300 VAC (UL), these fuse-links ensure optimal safety and reliability.These ultra-fast acting square body fuse-links feature multiple mounting styles accepted worldwide, enhancing flexibility in equipment design. The assembly employs die-cut elements embedded in solidified sand, which effectively controls arcing characteristics, leading to a lower I²t of 15.1 kA²s and a high interrupting capacity of 126 kA. The design incorporates silver-plated contact surfaces and non-magnetic hardware to minimize interference.Additionally, a low voltage trip-indicator can be integrated, which is compatible with a field-mountable microswitch, ensuring immediate feedback on fuse status. The ceramic body insulating material and slotted blades made from silver-plated copper provide durable and efficient connections, aligning with the Protistor® line's commitment to advanced semiconductor protection.

NH fuse-bases are available in single-pole and three-pole configurations, suitable for close parallel mounting. Each three-pole base includes two phase-partition walls, enhancing safety and functionality. The design allows for the incorporation of NH fuse-links, which can be equipped with clip-on covers that attach to contact springs. The plastic bases for sizes 00 to 3 are constructed from a single piece of plastic, while size 4 features a metal baseplate along with two ceramic bases.These bases are equipped with stable silver-plated contact springs made from electrolytic copper, ensuring reliability under thermal stress due to the inclusion of highly resilient captive steel springs. Specifically, the size 4 NH fuse-bases accommodate size 4 fuse-links with 8 mm contact blades. A microswitch compatible with NH fuse-links can be integrated, operating at 250VAC/10A and accommodating terminal sizes of 6.3x0.8mm, functioning effectively when a fuse melts or is absent. However, indirect touch protection fuse bases do not support a microswitch.The rated impulse withstand voltage for these bases is 6kV and 8kV for sizes 00 and 0-4, respectively. The installation is designed for DIN rail mounting, with a torque rating of 283.22 lb-in.

The SB aR Fuse-Link operates at a rated voltage of 690V AC per IEC standards and supports up to 1000A, making it suitable for a variety of power conversion equipment. Engineered for quick response, these ultra-fast acting fuse-links are available in multiple sizes and mounting styles to accommodate different equipment configurations.With a maximum breaking capacity of 200 kA, the fuse-link provides superior protection for semiconductor devices including diodes, thyristors, and IGBT devices. The assembly incorporates die-cut elements within solidified sand, which effectively controls arcing and results in a lower I²t value of 990 kA²s while the melting I²t stands at 170 kA²s. This design enhances the fuse's reliability and performance.Constructed with silver-plated contact surfaces and non-magnetic hardware, the fuse-link ensures optimal conductivity and safety. Additionally, a low voltage trip-indicator can be integrated, allowing the operation of a field-mountable microswitch for enhanced operational monitoring. The Designation Code for this product is crucial for identifying its specific application in industrial settings.

The Protistor® fuse-links, rated at 690VAC (IEC) and 700VAC (UL), offer essential protection for power conversion equipment. This model, designated as size 31, is capable of handling a maximum current rating of 350A. It incorporates ultra-fast acting characteristics, designed specifically for the protection of semiconductor devices such as diodes, thyristors, and IGBT components.Engineered with die-cut elements embedded in solidified sand, these fuse-links effectively manage arcing characteristics, resulting in a lower I²t and a high interrupting rating of up to 200 kA. The melting I²t at rated voltage is recorded at 10,300 A²s, while the clearing I²t stands at 61,000 A²s, ensuring optimal performance under fault conditions. All contact surfaces are silver plated, and the overall hardware is constructed from non-magnetic materials.For enhanced functionality, the fuse-link can be fitted with a low voltage trip-indicator that activates a field mountable microswitch. The connection terminal is made from silver-plated copper, and the body is insulated with ceramic material, reinforcing its durability and efficiency.

The NH fuse-link system operates within plug-in fuse configurations, encompassing a fuse base that may include terminal covers and phase barriers, as well as a fuse-link equipped with blade contact. A specific device for fuse-link replacement, such as the LV HRC fuse puller, is also available. It is essential that this system is managed by qualified professionals due to the potential interchangeability of rated currents.Classified as type 'gG', these fuse-links provide a full range breaking capacity and are crucial for the protection of cables and electrical equipment. They are capable of interrupting current surges from the lowest fusing current up to their rated breaking capacity, making them suitable for standalone protection. Additionally, they safeguard electrical devices and industrial installations from the electrodynamic effects associated with high short-circuit currents.

The UL98 Non-Fused Disconnect Switch is engineered to comply with the UL98 standard, facilitating safe and reliable operation for power circuits under load. With a maximum operating temperature of 40 °C and a storage temperature up to 55 °C, this switch is suitable for various demanding applications, including service entrance usage.This heavy-duty switch features a three-pole design and is constructed with silver-plated copper connection terminals. The rated insulation voltage is 750 V, and it supports a wiring range of #14-4. The switch is capable of handling short circuit current ratings of up to 200 kA with fuses and has a short circuit rating of class J at 50 kA for 150A.Installation is straightforward, with direct screw mounting, and it has a torque rating of 55 lb-in. The switch operates effectively across a range of voltages, with maximum horsepower ratings of 20HP at 240V, 40HP at 480V, and 40HP at 600V for 3-phase systems, as well as 3HP at 120V and 7.5HP at 240V for 1-phase systems. This adaptability ensures its efficacy in various electrical configurations.

The NH fuse-link system is categorized as a plug-in fuse system and includes a fuse-base, which may come with terminal covers and phase barriers, alongside a fuse-link with blade contact and a fuse-link replacement device, commonly known as an LV HRC fuse puller. Due to its design, which does not guarantee non-interchangeability of rated current, it requires handling by qualified personnel.Type 'gG' NH fuse-links offer a full range breaking capacity, protecting cables and equipment by interrupting current surges from the minimum fusing current up to their specified breaking capacity. This makes them suitable for standalone protection applications. Furthermore, they shield electrical devices and industrial setups from the electrodynamic effects associated with very high short-circuit currents.The rated power dissipation for the Mersen NH fuse-links at 400VAC is 5.7 W, which remains below the maximum values stipulated by standard IEC 60269. This model features a ceramic body insulating material and a silver-plated copper connection terminal. The NH000 fuse size and gG speed characteristic enhance its operational reliability.

The NH fuse-link system is categorized as a plug-in fuse system, consisting of a fuse-base that may include terminal covers and phase barriers. It incorporates a fuse-link with blade contact and is compatible with a fuse-link replacement device, specifically the LV HRC fuse puller. Due to the characteristics of the design, it is crucial that only qualified professionals handle the installation to ensure safety and functionality. As a type 'gG' fuse-link, this product offers a full range breaking capacity, providing protection for cables and various equipment. It is capable of interrupting currents from the lowest fusing levels to its specified breaking capacity, allowing for standalone operation in safeguarding applications. Additionally, it shields electrical devices and industrial systems from the electrodynamic impacts associated with high short-circuit currents. This particular NH fuse-link has an ampere rating of 80 A and is optimized for 500 V AC as per IEC standards and 250 V DC. Its power dissipation at the rated current is 6.5 W, ensuring effective thermal management during operation. Constructed with a ceramic insulating material, it features silver-plated copper for the connection terminals, enhancing conductivity. The body width measures 21 mm, and it utilizes a clip mounting method.

The 690/700V square body fuse-link is designed to provide optimal flexibility in equipment design while offering superior protection for modern power conversion systems. The aR ultra-fast acting fuse-link is specifically tailored for safeguarding semiconductors including diodes, thyristors, and IGBT devices.Constructed with die-cut elements embedded in solidified sand, this design effectively manages arcing characteristics, resulting in a lower I²t and a high interrupting rating of 200 kA. The fuse-link also includes silver-plated contact surfaces and non-magnetic hardware to enhance durability. Additionally, a low voltage trip-indicator can be integrated, allowing operation of a field-mountable microswitch.With a rated voltage of 690V according to IEC standards and 700V per UL standards, this fuse-link is built for robust performance. The ceramic body insulating material and silver-plated copper connection terminals ensure reliable connectivity, while the bolted mounting style allows for easy installation.

The NH fuse-link aM operates within a plug-in fuse system framework, consisting of a fuse-base, which may include terminal covers and phase barriers, a fuse-link with blade contact, and a fuse-link replacement device, specifically a low-voltage HRC fuse puller. This system is not designed to ensure non-interchangeability of rated currents, necessitating handling by qualified professionals.This variant is rated for a maximum voltage of 690 V AC and has an ampere rating of 250 A. It features a breaking capacity of 80 kA, allowing it to effectively interrupt high fault currents. The power dissipation at the rated current value is measured at 21.5 W, ensuring reliable thermal management during operation. The ceramic insulating material used in the body enhances durability, while the connection terminals are composed of silver-plated copper for optimal conductivity.Notably, the NH1 size and aM speed characteristic make this fuse-link suitable for a range of applications where reliable overcurrent protection is essential. To maintain performance, installation should adhere to the specified mounting method, which is clip-based.

The NH fuse-link aM, categorized under plug-in fuse systems, incorporates a fuse-base which may include terminal covers and phase barriers, along with a fuse-link equipped with blade contact and a replacement device (LV HRC fuse puller). Due to the inability to ensure non-interchangeability of rated current, installation should be conducted by qualified personnel. With a rated current of 10A, this fuse-link is designed for motor circuit protection, providing strong current-limiting capabilities and minimal power losses. It can interrupt currents up to 6.3 times its nominal rating, making it suitable exclusively for short-circuit protection. For overload protection, it should be paired with additional switchgear. The fuse-link is compatible with motor nominal currents, ensuring reliable operation.

The size 72 aR fuse-link is engineered to provide superior protection for semiconductors, including diodes, thyristors, and IGBT devices. With a rated voltage of 1250 VAC (IEC) and 1300 VAC (UL), it supports a maximum breaking capacity of 126 kA, ensuring high performance in demanding applications. This fuse is constructed with die-cut elements embedded in solidified sand, effectively controlling arcing characteristics and achieving a lower I²t rating of 550 kA²s. The melting I²t value is specified at 68 kA²s, allowing for precise performance monitoring. Additionally, the power dissipation at rated current is 120 W, which contributes to its reliability under load. Each fuse-link features silver-plated contact surfaces and non-magnetic hardware, enhancing durability and conductivity. The unit can be equipped with a low voltage trip-indicator that operates a field mountable microswitch, facilitating quick status checks. This component is compatible with various worldwide acceptable mounting styles, providing flexibility in equipment design.

High-Speed Fuse for Semiconductor ProtectionEnsure ultimate protection for your power conversion equipment with this essential high-speed fuse. Engineered to react extremely fast to overcurrents and short-circuit faults, it is a crucial component for safeguarding sensitive semiconductors and other electronic devices.This fuse-link provides a state-of-the-art protection solution for diodes, thyristors, and IGBT devices, which are common in drives and power converters. Its fast-acting characteristic helps to minimize damage to protected components, enhancing their longevity and contributing to maximized uptime. Ideal for power electronics, this component is a dependable solution for various industrial processes.Whether designing new power systems or maintaining existing equipment, this device delivers the performance and reliability needed for optimal protection.Key Features:Extremely fast-acting for superior protectionLow I²t for minimal damage to componentsDesigned for use in power conversion equipmentHigh interrupting rating level

The DIN CNL 1 35A fuses are engineered specifically for heavy-duty applications in DC battery-powered equipment, including forklift trucks and motorized platforms. These fuses are designed to endure harsh operational conditions, ensuring longevity through their robust construction and stud-mounted bolt-in design.They cater to circuit protection needs with a voltage rating of up to 130V AC or DC. The flat CNL style offers a compact solution with a lower voltage rating, UL recognition for AC applications, and a visual 'see-thru' indication to confirm operational status. These fuses are compatible with SFBT fuse bases in accordance with DIN 43560 dimensions.

The NH fuse-link gG, rated for 400VAC and 16A, is a critical component in electrical protection systems. This model, classified under size NH000, is designed for use with plug-in fuse systems and includes features such as double indicators and live tags. Constructed with a ceramic body insulating material and silver-plated copper for the connection terminals, this fuse-link is capable of interrupting a wide range of current surges, ensuring robust protection for cables and electrical equipment. The design adheres to the standards set forth by IEC 60269, with rated power dissipation not exceeding 1.6 W at the rated current, making it suitable for various industrial applications.The NH fuse-link operates effectively as a standalone protective device and safeguards against the electrodynamic consequences of significant short-circuit currents. Its installation should be performed by qualified professionals due to the non-interchangeability of rated currents.

This 20x127 gR cylindrical fuse-link is specifically engineered for applications operating at up to 1500VDC. With a current rating of 20 A, it functions as a fast-acting fuse, providing essential protection for various auxiliary and control circuits, as well as measuring and monitoring equipment.Designed to dissipate a power of 9.6 W at its rated current, this component features a ceramic insulating body, ensuring durability and reliability. The fuse employs silver-plated copper for its connection terminals, which are ferrule type, facilitating secure and efficient connections.With a maximum rated breaking capacity of 30 kA, this fuse-link is suitable for high-demand applications. The mounting mechanism is clip-based, allowing for straightforward installation. The product is classified under the Protistor® series, specifically designed for sizes 20x127, ensuring compatibility with standard configurations.

The Size 122 aR 2000VDC fuse-link is designed specifically for the protection of railway power circuits. Built to meet the demands of modern DC equipment, these fuse-links excel in extreme environments, offering enhanced safety and reliability. With an ampere rating of 160 A and a rated voltage of 2000 V, this product minimizes damage to protected components during short circuits, thanks to a lower I2t value of 15000 A²s. Additionally, it features reduced power dissipation at 100 W, contributing to a longer operational lifespan. The fuse is constructed with a ceramic insulating body and utilizes silver-plated copper for its connection terminals, which are of the L bracket type and bolted for secure mounting. Furthermore, it possesses a maximum rated breaking capacity of 100 kA, making it suitable for high-performance applications. This product is part of the Protistor® line and is designated with the code Protistor® size 122 aR, 2000VDC.

The NH fuse-link classified as type gG is designed for use in plug-in fuse systems. It comprises a fuse base, which may include terminal covers and phase barriers, along with a fuse-link that features blade contacts and a fuse-link replacement device, specifically the LV HRC fuse puller. Due to the design not ensuring non-interchangeability of rated currents, it is essential that a qualified professional manages installation and handling.This specific NH fuse-link is capable of interrupting any current surge, from the lowest fusing current up to its breaking capacity. It serves to protect cables and equipment, thereby safeguarding electrical devices and industrial setups from the electrodynamic effects caused by very high short-circuit currents. With a rated voltage of 500V AC and an ampere rating of 40A, its ceramic body material ensures durability while the silver-plated copper connection terminal enhances conductivity.