Mersen Ricambi per Automazione Industriale

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 690/700V Protistor® fuse-links provide maximum flexibility in equipment design and ultimate protection for today's power conversion equipment. These NH style fuse-links are defined as per DIN 43620/00 for a worldwide acceptance into NH modular system fuse-holders, fuse switch disconnectors for direct installation. The Protistor® have been engineered to provide state-of-the-art protection for semiconductors: diodes, thyristors, GTO's and IGBT devices. Fuses are assembled with pure silver, 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. Each fuse-link can be equipped with a low voltage trip-indicator which can operate a field mountable microswitch.

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.

One-Time OTS general purpose fuses provide low cost protection for feeder and branch-circuits serving lighting, heating, and other non-motor loads. OTS fuses will safely interrupt available short circuit currents up to 50,000 amperes in all ratings. OTS fuses are not rejection fuses and care should be taken to ensure that replacement fuses do not have lower interrupting ratings than original fuses.

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 690/700V 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. Each fuse-link can be equipped with a low voltage trip-indicator which can operate a field mountable microswitch.

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.

Tri-Onic TRS-R current-limiting time-delay fuses are engineered for overcurrent protection of motors, transformers, service entrance equipment, feeders and branch-circuits. The time-delay characteristics of the TRS-R safely handle harmless starting currents and inrush currents associated with today's motors and transformers.

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

Tri-Onic® TRM time-delay midget fuses are rated 250 volts AC and are offered in ampere ratings from 1/10 to 30A. They have 12 seconds time-delay at 200% rating to provide supplemental protection of small motors, small transformers and other high inrush loads, plus many other 250 volt applications. (Not for Branch Circuit Protection).

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 690/700V Protistor® fuse-links provide maximum flexibility in equipment design and ultimate protection for small power conversion equipment. These ultra-fast acting aR fuses have been engineered to provide state-of-the-art protection for semiconductors diodes, thyristors and IGBT devices. They 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. Each fuse-link can be equipped with a low voltage trip-indicator which can operate a field mountable microswitch.

The 690/700V 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. They have been engineered to provide state-of-the-art protection for semiconductors: diodes, thyristors and IGBT devices. They 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. Each fuse-link can be equipped with a low voltage trip-indicator which can operate a field mountable microswitch.

The UL508 Non-Fused Disconnect is engineered to handle loads up to 600V, making it suitable for motor disconnect applications. This switch is recognized for its compact size and offers multiple installation options, including panel, DIN-rail, or door mounting. With a maximum operating temperature of 40 °C and a storage temperature of 55 °C, it operates efficiently even in varying conditions. The switch features a rated insulation voltage of 750V and can handle a short circuit current rating (SCCR) of up to 100 kA when used with fuses. Rated for 25A, it accommodates a wiring range of #18-8. Part of the UL508 Switch product line, it includes a connection terminal type of box and is rated for a maximum horsepower of 20HP at 600V in 3-phase operations, making it versatile for different application needs. The installation requirements are further supported by a variety of handles, shafts, and accessories, ensuring compatibility with diverse setups.

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.

Mersen aM and gG fuse-links cover a wide range of physical sizes and ampere ratings for 400, 500, and 690VAC for protection in electrical distribution circuits and various industrial applications. Most ratings are available in size 8x31 and size 10x38 with an optional indicator, and in size 14x51 and 22x58 with an optional striker to activate an auxiliary contact. Size 10x38 is also available with striker. All cylindrical fuse-links have ceramic bodies and silver-plated contacts. Cylindrical fuse-links "gG" are used for the protection of cables, motors and LV-networks. They limit and cut off unacceptable overcurrents and short-circuit currents up to their nominal breaking capacity. Cylindrical fuse-links "gG" also protect electrical equipment and installations against the dynamic effect of high short-currents. Our technology and process was designed to ensure highly reliable technical performance.

The 690/700V 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. They have been engineered to provide state-of-the-art protection for semiconductors: diodes, thyristors and IGBT devices. They 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. Each fuse-link can be equipped with a low voltage trip-indicator which can operate a field mountable microswitch.

The 690/700V Protistor® fuse-links provide maximum flexibility in equipment design and ultimate protection for small power conversion equipment. These ultra-fast acting aR fuses have been engineered to provide state-of-the-art protection for semiconductors diodes, thyristors and IGBT devices. They 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. Each fuse-link can be equipped with a low voltage trip-indicator which can operate a field mountable microswitch.