Utensili e accessori Mersen

The DFC dead-front fuse cover is designed to snap onto individual fuses in fuse blocks, effectively covering exposed live clips and terminals to minimize accidental contact by personnel. It is suitable for Class G, H, J, K, R, CC, or midget fuses, enhancing safety and optionally providing open-fuse indication. Each cover is reusable, allowing for easy detachment from a replaced fuse and reattachment to a new one. In models equipped with an indicator, an orange light activates to signal an open fuse condition. The design includes ends that can be cut to fit around existing wiring, safety switches, or specialized installations. Additionally, a blank label accompanies each unit for circuit or fuse information, ensuring clear identification.This product complies with various standards including UL and CSA certifications and is constructed from GFPC material. It supports a DC voltage range of 250 - 600 VDC and an AC voltage range of 250 - 600 VAC, with a maximum ampere range of 0-30 A. For detailed compliance information, consult Technical Services.

The Amp-Trap 2000® SmartSpot time-delay A6D-R fuses deliver IEC Type 2 "no damage" protection suitable for mains, feeders, and branch circuits handling both motor and non-motor loads. These fuses are engineered to open rapidly under extreme fault conditions, ensuring maximum short circuit protection to safeguard motor starters, switches, and additional circuit components. Furthermore, they provide the necessary time-delay to accommodate motor inrush currents. The A6D-R fuses are compatible replacements for older 600V Class H, K, or RK5 fuses already in service.With a rated voltage of 600V AC and DC, these fuses feature a 450A ampere rating and comply with ROHS standards. The time-delay characteristic allows for appropriate protection while the SmartSpot® indication system enhances visibility of the fuse status. The fuse is mounted using a clip, has a maximum interrupting rating of 200 kA, and is constructed with a poly tube body for insulation. The connection terminals are made of tin-plated copper and feature a blade type connection.

The NH fuse-link system is a plug-in fuse system comprising a fuse base, potentially including terminal covers and phase barriers, along with a fuse-link featuring blade contact. The associated fuse-link replacement device (LV HRC fuse puller) is essential for maintenance. Due to the design of the system, which does not guarantee the non-interchangeability of rated current, handling should be performed by a qualified professional.These type gG NH fuse-links offer full range breaking capacity, serving a critical role in protecting cables and equipment. They are capable of interrupting current surges from the lowest fusing current up to their specified breaking capacity, allowing for their standalone use as protective devices. Additionally, they safeguard electrical devices and industrial installations from the electrodynamic effects of high short-circuit currents, thus ensuring reliability and safety in operations.Constructed from ceramic with copper and silver-plated contacts, these fuse-links accommodate an ampere range from 2 to 800 A. They adhere to multiple standards, including DIN 57636 Part 201, VDE 0636 Part 201, and IEC 60269-1 and -2, and comply with CE requirements. For ROHS compliance, consultation with Technical Services is advised.

The NH fuse-link system is categorized as a plug-in fuse system, comprising a fuse-base, which may include terminal covers and phase barriers, along with a fuse-link featuring blade contact and a replacement device known as a LV HRC fuse puller. Due to the system's design, which does not ensure non-interchangeability of rated currents, installation should be conducted by a qualified professional. Type gG NH fuse-links are characterized by their full range breaking capacity, enabling them to safeguard cables and equipment effectively. They can interrupt current surges across a broad spectrum, from the lowest fusing current to their maximum breaking capacity, making them suitable for standalone protection applications. Additionally, these fuse-links provide essential safeguarding for electrical devices and industrial setups against the electrodynamic impacts of high short-circuit currents. Constructed with a ceramic body, these fuse-links comply with CE standards and are available in a wide ampere range from 2 to 800 A. The contact materials consist of copper and silver-plated components, ensuring reliable connectivity. Adhering to standards such as DIN 57636 Part 201, VDE 0636 Part 201, and IEC 60269-1 and -2 further underscores their compliance and reliability in various applications.

The cylindrical fuse-link gG, rated for 400VAC and 2A, is engineered to provide essential protection for electrical distribution circuits, motors, and low-voltage networks. With a breaking capacity of up to 20 kA, it effectively limits and disconnects unacceptable overcurrents and short-circuit currents, ensuring the safeguarding of electrical equipment against the dynamic effects of high short-currents. Constructed with a ceramic body and silver-plated copper terminals, this fuse-link adheres to stringent quality standards and is classified under the product line of Ferrule fuse-links 8x31 gG 400VAC. The device features a diameter of 0.33 inches and a power dissipation of 0.45 watts at rated current. Its design includes a ferrule connection terminal type, facilitating secure installation. With applications spanning various industrial sectors, this fuse-link is critical for maintaining operational safety and reliability within electrical systems. The mounting is clip-based, allowing for straightforward integration into existing setups.

The D fuse system represents the initial generation of screw fuse systems compliant with the German DIN standard, still prevalent in various installations. Primarily utilized in low voltage distribution units, these fuse-links allow for replacement by untrained personnel.The D flink fuse series includes sizes NDZ, DII, and DIII, specifically designed to protect electrical equipment. While the D flink fuse-links are categorized as fast fuse-links, the D gG fuse-links serve as slow fuse-links, distinguishing their operational characteristics. The DII variant is specifically built with a ceramic body insulating material and a clip mounting feature, ensuring reliable performance under the specified ratings of 25 A and a rated voltage of 500 V AC/DC.Notably, the D flink fuse-links are not standardized by the IEC, highlighting their unique specifications and applications.

The Fuse 600V 125A Fast-Acting Class K5 OTS Series is designed for one-time use in general purpose applications. It offers a cost-effective solution for protecting feeder and branch circuits serving various non-motor loads, including lighting and heating. With a rated voltage of 600 V AC and 300 V DC, this fuse is capable of safely interrupting short circuit currents up to 50,000 amperes, ensuring reliable performance in demanding conditions.It is critical to note that OTS fuses are not rejection types, thus caution must be exercised when replacing them to ensure that the new fuses maintain the same or higher interrupting ratings compared to the originals. The fuse features a fast-acting speed characteristic and is constructed with a tin-plated copper terminal connection, enhancing its durability. The body is made of PolyTube, which contributes to its insulation properties.In terms of dimensions, the fuse measures 9.63 inches in length and has a diameter of 1.81 inches, weighing 1.54 lbs. It is mounted using a clip for secure installation.

The One-Time OTM midget fuses are intended for use in general-purpose applications at 250VAC, suitable for lighting and heating circuits, as well as control systems where time-delay functionality is unnecessary. These fast-acting fuses are not meant for branch circuit protection.With a rated voltage of 250V AC and an ampere rating of 6A, this fuse classifies as a midget. It features a fast-acting speed characteristic and is mounted using a clip for secure installation. The breaking capacity reaches up to 10 kA, ensuring reliable performance under fault conditions.The construction includes tin-plated copper terminals for optimal conductivity and a paper insulating body, contributing to its compliance with ROHS standards. The compact design measures 0.41 inches in diameter and 1.5 inches in length, with a total weight of 0.012 lbs, making it an efficient choice for various electrical applications.

The OTS general purpose fuses are designed to provide economical protection for feeder and branch circuits that serve lighting, heating, and various non-motor loads. These fuses are capable of safely interrupting available short circuit currents up to 50,000 amperes, making them suitable for diverse applications. It is important to note that OTS fuses are not rejection fuses; therefore, care must be taken to ensure that replacement fuses have interrupting ratings that meet or exceed those of the original fuses.With a rated voltage of 600 V AC and 300 V DC, the fuse is classified as Class K5 and features a fast-acting characteristic. The clip mounting type allows for easy installation, while the copper terminal connection ensures reliable performance. The body is constructed from PolyTube material, contributing to its durability.In terms of dimensions, this fuse measures 5.5 inches in length and has a diameter of 1.06 inches, with a weight of 0.23 lb.

The P-Block series fuse bases are constructed using glass-filled polycarbonate or laminated phenolic materials, suitable for accommodating bolt-in type fuses. Each unit features a 1-pole configuration and is rated for a maximum voltage of 1000V AC and DC, with an ampere capacity of 200A. The installation is facilitated through direct screw mounting, and the wire connections utilize a stud type terminal made of tin-plated copper.This model supports a maximum operating temperature of 80 °C and is rated for a short circuit current rating (SCCR) of 10 kA. Additionally, the product is designed to function effectively within a frequency range of 50/60 Hz. The construction includes tin or zinc-plated mounting hardware as well as connection studs, ensuring durability and reliability in various applications.

The Tri-Onic TRS-R series includes current-limiting time-delay fuses, tailored for the overcurrent protection of various electrical components, including motors, transformers, service entrance equipment, feeders, and branch circuits. Notably, the time-delay feature allows these fuses to accommodate harmless starting and inrush currents typically encountered with modern motors and transformers.With an ampere rating of 50 A and a maximum breaking capacity of 200 kA, this fuse is well-suited for high-demand applications. The rated voltage is 600 V for AC and 300 V for DC, operating efficiently at frequencies of 50/60 Hz. The fuse is constructed with a copper terminal type and a PolyTube insulating material, ensuring durability and reliability in various conditions. Furthermore, it is designed for clip mounting, enhancing its ease of installation.

Mersen UltraSafe Modular 600 Volt Fuse Holders for Class J fuses introduce a new level of safety and ease for installing or replacing Class J fuses. UltraSafe holders qualify as “finger-safe” to an IP20 grade of protection under IEC standards. The US3J accommodates 30A Class J or 22 x 58 mm French Ferrule* fuses. The US6J is for 60A Class J fuses. UltraSafe holders are available in compact 1, 2, or 3 pole units, with or without blown-fuse indicators in each pole. Multi-pole units can also be made up in the field by using the multiplepole Assembly Kits. All units have provisions for locking in the open position for safety during fuse changeouts or equipment servicing. US3J and US6J holders can be snap-mounted to 35 mm DIN-rail and they have a unique latch which will stay open to allow re-positioning of the holder in the future. UltraSafe body material is tough and durable polyamide. *Holder not UL listed when installed with French Ferrule fuses. RECOMMENDED FUSE USAGE: *US3J, US6J use with AJT, A4J, HSJ

The TRM Series time-delay midget fuse operates at a rated voltage of 250 volts AC and supports an ampere rating of 2 A. This fuse is particularly effective in handling high inrush loads, offering a time-delay of 12 seconds at 200% rating, which is crucial for protecting small motors and transformers in various applications. It is important to note that this fuse is not intended for branch circuit protection. Constructed with a body made of GMG insulating material, it features a clip mounting style and utilizes tin-plated copper for its connection terminals. The fuse achieves an AC maximum interrupting rating of 10 kA, ensuring reliable operation under fault conditions. This unit is compliant with ROHS regulations, making it suitable for a range of modern electrical applications.

The NH fuse-link aM, classified as a plug-in fuse system, includes a fuse-base that may contain terminal covers and phase barriers, along with a fuse-link featuring blade contact and a fuse-link replacement device (LV HRC fuse puller). Due to its design, this system requires handling by qualified professionals to ensure the non-interchangeability of rated current. Type 'aM' fuse-links are specifically engineered for motor circuit protection, offering partial-range breaking capacity. These components are current-limiting, minimizing power losses while interrupting currents up to six times the nominal current (In) and reaching their maximum breaking capacity. It is essential to pair these fuse-links with additional switchgear for overload protection. Rated for a maximum current equivalent to the motor's nominal current, they provide effective short-circuit protection.

These 1250/1300V Protistor® fuse-links provide maximum flexibility in equipment design and ultimate protection for today's power conversion equipment. These aR ultra-fast acting square body fuse-links are available in different body sizes, each size having multiple worldwide acceptable mounting styles. The Protistor® have been engineered to provide state-of-the-art protection for semiconductors: diodes, thyristors and IGBT devices. Fuses are assembled with die-cut elements embedded in solidified sand, which helps control arcing characteristics for a lower I²t and high interrupting rating level. All contact surfaces are silver plated and all hardware is non-magnetic. All fuse-links can be equipped with a low voltage trip-indicator which can operate a field mountable microswitch.

The cylindrical fuse-link aM, with a size of 10x38, is designed for use at a rated voltage of 500VAC and an ampere rating of 8A. This component is part of the Ferrule fuse-links product line suitable for applications ranging from 400 to 690VAC. It incorporates a visual indicator, enhancing operational visibility.Constructed with a ceramic body and silver-plated copper terminals, this fuse-link provides a robust solution for electrical distribution circuits. The fuse-links are characterized by their ability to limit high short-circuit currents effectively, cutting off excessive currents exceeding 6.3 times the nominal current until reaching the rated breaking capacity of 120 kA. This feature is critical for protecting electrical devices and ensuring the safety of motor circuit installations.The mounting is facilitated by a clip, and the product has a power dissipation of 0.55 W at its rated current. With its reliable technical performance, this fuse-link is engineered to meet stringent industry standards.

The NH fuse-link gG, rated at 400A and designed for a voltage of 500VAC, is integral to plug-in fuse systems. This system comprises a fuse-base that may include terminal covers and phase barriers, along with a blade contact fuse-link and a fuse-link replacement device such as an LV HRC fuse puller. Due to its design, which does not ensure non-interchangeability of rated current, handling should be performed by qualified personnel. The gG type fuse-links are characterized by their full range breaking capacity, effectively protecting cables and equipment from current surges, including very high short-circuit currents. This capability allows them to serve as standalone protection devices for electrical installations and industrial setups, preventing damage from electrodynamic effects.

The Surge Trap STMT Series is designed for low voltage surge protection, accommodating both AC and DC voltage applications. With a slim monobloc format and DIN-rail mounting capability, these devices are well-suited for installations with space constraints. Operating across a voltage range of 12-230 VAC and 24-365 VDC, this SPD is compliant with UL 1449 4th Edition standards, making it ideal for safeguarding sensitive equipment such as power supplies, communication systems, and control devices. The device features a maximum discharge current rating of 20kA, with a nominal discharge current of 10kA. It also supports an optional dry contact feature for remote monitoring. In terms of environmental resilience, the device can operate between -40 °C and 80 °C, ensuring reliability in various conditions. Key specifications include a response time of 25 ns and a torque rating of 6.2 lb-in. The surge protective device is also characterized by low combined discharge voltages, with Mlv L-N at ≤ 1.4 kV and Mlv L-G at ≤ 1.04 kV, thus enhancing its protective capabilities. This product is categorized under the Surge-Trap® Monobloc STMT23 Series, ensuring high performance and durability.

The A15QS Amp-Trap® Form 101 high speed fuses are specifically engineered to safeguard semiconductor devices, including diodes, operating at a maximum voltage of 150VAC/DC. With an ampere rating of 100 A, these fuses are capable of interrupting fault currents up to 200 kA, providing reliable protection in critical applications.Its compact design allows for installation in spaces with strict dimensional constraints, enhancing versatility in various setups. The fuses feature a diameter of 1.13 inches, making them suitable for tight configurations. The body is constructed from GMG insulating material, while the connection terminals are made of tin-plated brass and utilize a blade type for secure attachment.Operating effectively in temperatures ranging from -25 °C to 80 °C, this product line is ideal for environments that require robust thermal performance. The A15QS is part of the Amp-Trap® series, which is recognized for its high-speed characteristics, ensuring rapid response to overcurrent situations.

The Fuse Bases 600V 200A Class J 3-pole Aluminum Box Side-Clip is designed for versatility in electrical applications, accommodating a variety of stranded or solid conductors made from copper or aluminum. The connectors include options for screw, pressure plate, box, and special order stud configurations. Insulation is provided by either molded glass-filled polycarbonate (GFPC) or phenolic materials, both of which exhibit a verified dielectric strength exceeding 2500V. The fuse blocks are available in 30A, 60A, and the newly introduced 100A configurations, which utilize a unique adder block system that allows for the creation of multi-pole segmented blocks by snapping onto existing 1-, 2-, or 3-pole blocks. All fuse clips are constructed from high conductivity tin-plated copper, with options for both spring-reinforced and non-spring reinforced clips available. Additionally, compact configurations are introduced in the 30A and 100A models, enhancing space efficiency while maintaining performance standards.