Tools & Accessories Mersen

The A2D-R series SmartSpot time-delay fuse is designed to deliver IEC Type 2 "no damage" protection for mains, feeders, and branch circuits. With a rated voltage of 250V for both AC and DC, this fuse accommodates motor and non-motor loads effectively. It opens rapidly under severe fault conditions to ensure maximum short circuit protection, safeguarding components such as motor starters and switches while providing the necessary time-delay for in-rush currents. Furthermore, the A2D-R fuses can serve as replacements for older 250V Class H, K, or RK5 fuses already in use.Constructed with a body made of PolyTube and featuring a tin-plated copper connection terminal, this fuse is equipped with an indication system known as SmartSpot®, which enhances functionality and user awareness. With a maximum breaking capacity of 200 kA, it meets rigorous safety standards and is ROHS compliant.

The 10x38 gR cylindrical fuse serves as a fast-acting protective component for various applications including inverters, uninterruptible power supplies (UPS), and variable speed drives. Operating at a voltage of 690VAC, this fuse is capable of protecting devices rated for up to 700V. With an ampere range spanning from 1 to 32 A, it meets the necessary compliance standards including UL/CSA for recognized components under IEC 60269-4. The fuse is also CE compliant and lead-free, aligning with modern environmental regulations. This gR fuse is particularly suited for applications requiring protection of small inverters and motor drives, ensuring reliable operation in critical power systems.

The Surge Switch is engineered for high-performance in applications requiring surge protection, specifically accommodating surge currents up to 200 kA with an 8x20 µs waveform. It features a compact design and employs a unique contact mechanism that enhances clamping during surge events. This model is particularly suitable for integration into surge protective device (SPD) panels operating at up to 600 VAC.Built with a body made from glass-fiber reinforced polyester, the switch is designed to operate reliably within a temperature range of -25 to +60 °C. It supports a connection terminal type that is bolt-on and is compliant with various standards, including UL Listing and CE conformity. Its contact materials consist of silver-plated copper, ensuring effective conductivity.With options for 3 or 4 poles, this switch is intended for off-load switchability and is built to meet rigorous safety and performance standards, making it an ideal choice for high surge current applications.

The NH fuse system, identified as a plug-in fuse system, comprises a fuse base, which may include 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 the potential for rated current interchangeability, it is essential that this system be handled by qualified professionals. Type gG NH fuse-links are characterized by their full range breaking capacity, allowing them to effectively protect cables and equipment. They are capable of interrupting current surges from the lowest fusing current to their designated breaking capacity, making them suitable for standalone protection applications. Additionally, these fuse-links safeguard electrical devices and industrial setups against the electrodynamic effects caused by very high short-circuit currents.Constructed with a ceramic body and featuring copper and silver-plated contacts, these fuse-links meet various standards, including DIN 57636 Part 201, VDE 0636 Part 201, and IEC 60269-1 and -2. The NH fuse-links are compliant with CE regulations and are available in sizes 000, 00, 0, 1, 2, and 3, covering an ampere range from 2 A to 800 A.

The Surge-Trap® Type 1 ST-XR Series is designed to provide reliable surge protection for 480Y/277V systems, making it suitable for branch panels and individual equipment. With a maximum discharge current rating of 50 kA and a voltage protection rating of 2000V L-L, it effectively safeguards against transient surges. The device incorporates TPMOV® technology, ensuring operational safety and compliance with UL1449 4th Edition standards.This unit features a compact design that allows for flexible installation, either line or load, and is pre-wired for ease of connection. The operating temperature range extends from a minimum of -40 °C to a maximum of 85 °C, making it suitable for various environments. With a maximum continuous operating voltage (MCOV) of 640V, it protects against voltage spikes across multiple modes: line-to-ground, line-to-neutral, and line-to-line.Constructed from polycarbonate, the housing provides durability and a flammability rating of UL94-5VA. The Surge-Trap® Type 1 ST-XR Series is also rated for a short circuit current rating (SCCR) of 200 kA, ensuring robust performance in demanding applications.

The AJT Reducer Fuses provide a permanent solution for current rating reduction without the use of temporary fuse reducers. These fuses maintain the same protective capabilities as traditional AJT fuses, but are housed in a larger body for increased performance.With a rated voltage of 600 V AC and 500 V DC, this fuse operates at an ampere rating of 400 A. It is compliant with ROHS standards and classified as Class J, featuring a time-delay characteristic. The mounting options include clip or bolted configurations, and it has an AC maximum interrupting rating of 200 kA. The connection terminals are made of brass and designed as blade type, while the insulating material of the body is GMG.Weighing 3.25 lbs with a diameter of 2.5 inches and a length of 8 inches, this product is packaged with dimensions of 8.75 inches in length, 2.5 inches in width, and 2.38 inches in height, weighing a total of 3.41 lbs for shipping.

The D fuse-system represents the initial generation of the screw fuse-system adhering to the German DIN standard, remaining prevalent in numerous installations. This system is particularly suited for low voltage distribution units where untrained individuals may need to change fuse-links. The D fuse range encompasses sizes NDZ, DII, DIII, DIV, and DV.These fuse-links, rated gG, serve to safeguard cables and power lines by limiting and interrupting excessive overcurrents and short circuit currents up to their nominal breaking capacity. Additionally, they provide protection for equipment and installations against the dynamic effects associated with high short circuit currents. The D fuse-bases are compliant with DIN VDE 0636-301 standards, allow DC voltage ratings of up to 500 VDC, and AC voltage ratings of up to 500 VAC. They support an ampere range from 25 A to 63 A and are applicable in various settings including house incoming units, meter distribution units, distribution cabinets, installation cabinets, and fuse boxes.

The OT and OTN series of fuses are designed to deliver low-cost protection for feeder and branch circuits, particularly for lighting, heating, and other non-motor applications. With a rated voltage of 250 V AC and 250 V DC, these fast-acting fuses are capable of safely interrupting available short-circuit currents up to 50,000 amperes across all ratings.It is critical to note that these fuses are not rejection types; therefore, replacements must be selected carefully to match or exceed the original interrupting ratings. Specifically, the OTN(15-60) versions comply with Canadian electrical code requirements for Type P low melting-point, non-time-delay fuses.This fuse features a Class K5 designation, ensuring reliability in various applications. Constructed with a tin-plated copper terminal type and a PolyTube body material, it supports a clip mounting style for straightforward installation. The fuse weighs 1.45 lb with dimensions of 2.06 in in diameter and 8.63 in in length, making it suitable for various electrical setups.

The NH fuse-link system is a plug-in type that includes components such as a fuse-base, which may come with terminal covers and phase barriers, along with a fuse-link featuring blade contacts. For replacement of the fuse-link, a low voltage high rupturing capacity (LV HRC) fuse puller is recommended. Due to the design of this system, it is essential that installation and handling are conducted by a qualified professional.This system supports a current range of 2 - 630 A and adheres to multiple standards including DIN 57636 Part 201, VDE 0636 Part 201, and IEC 60269-1 and -2. The fuse-links are characterized by a gG speed rating, suitable for general purpose applications, ensuring reliable protection of cables and lines.The body of the fuse-link is square and constructed from ceramic, while the contact materials include copper that is silver-plated to enhance conductivity. This product meets CE conformity and is ROHS compliant, with further compliance information available through Technical Services.

The NH fuse-link system is categorized as a plug-in fuse system, comprising components such as a fuse-base, which may feature terminal covers and phase barriers, and a fuse-link with blade contact. It is essential to note that due to the design of this system, the interchangeability of rated currents cannot be guaranteed; thus, installation and handling should be performed by qualified professionals.These type gG NH fuse-links possess a full range breaking capacity, providing protection for cables and electrical equipment. They are capable of interrupting current surges, spanning from the lowest fusing current up to their specified breaking capacity, making them suitable for standalone protection mechanisms. Additionally, they safeguard electrical devices and industrial setups from the electrodynamic effects generated by high short-circuit currents.Constructed with a square body style from ceramic materials, these fuse-links are compliant with VDE 0636 Part 201 and IEC 60269-1 and -2 standards. The ampere range for these devices spans from 2A to 630A, with contact materials consisting of copper and silver-plated elements. The product is CE compliant, and for additional inquiries regarding lead-free and ROHS compliance, consultation with Technical Services is advised.

The Fuse Base 600V 100A Class J 1-pole is designed to accommodate all Class J fuses within the range of 0-600A and 600V. It features a variety of connection options, including screw, pressure plate, box, and special order stud connectors, which are compatible with both stranded and solid copper or aluminum wire.Constructed with insulators made from molded glass-filled polycarbonate (GFPC) or phenolic, this product ensures a verified dielectric strength exceeding 2500V. The compact design of the SJ fuse blocks allows for a unique adder block configuration, facilitating multi-pole field assembly while maintaining a smaller footprint compared to traditional offerings.All fuse clips are manufactured from high conductivity tin-plated copper, with options for spring reinforced or non-spring reinforced clips. This unit operates effectively across a frequency range of 50/60 Hz and can function at a maximum operating temperature of 80 °C. The product line, classified under 6SJ - Class J, also supports a short circuit current rating (SCCR) of 200 kA, enhancing its applicability in various installations.

The fuse base is designed to accommodate Class H, K, and R power fuses rated for both 250V and 600V. It includes a range of connector options such as screw, pressure plate, and box connectors, compatible with various stranded or solid copper and aluminum wires. The insulators are constructed from either molded glass-filled polycarbonate or phenolic, exhibiting a dielectric strength exceeding 2500V.Notably, the 30A, 60A, and 100A variants are equipped with a unique adder block that can be attached to 1-, 2-, or 3-pole blocks, allowing for the creation of multipole segmented blocks as needed. All fuse clips are manufactured from high conductivity tin-plated copper, with options for spring reinforced or non-spring reinforced clips available for 30A and 60A configurations. For clips rated at 100A and above, spring reinforcement is standard.This model features a maximum operating temperature of 80 °C and a short circuit current rating (SCCR) of 200 kA. It supports a maximum fuse rating of 400 A and has a torque rating of 275 lb-in. The direct screw mount installation enhances its versatility in various applications.

The modular fuseholder is designed for 20x127mm fuses and supports a voltage range of 1500 - 2500 VDC and 1500 - 2500 VAC. It provides exceptional safety features and is available in 1, 2, 3, or 4-pole configurations. Each pole can include a microswitch for blown-fuse indication, necessitating the use of a striker fuse.Constructed from phenolic material, the fuseholder is compliant with UL standards, specifically UL Recognized Component under standard 4248-1, with certification number E113357. The contact material is made of tin-plated copper, and the connection terminal type is bolt-in, accommodating a maximum wiring range of 50mm². The device exhibits a short-circuit current rating (SCCR) of 42kA AC and 55kA DC.

The D0 fuse-link system is intended for use in low voltage distribution units, allowing accessibility for replacement by untrained personnel. This system is recognized as the latest in screw systems, suitable for networks operating at 400VAC and 250VDC. Within the D0 series, fuse sizes include D01, D02, and D03, catering to a variety of applications.D0 fuse-links serve a critical role in the protection of cables and power lines by limiting and disconnecting unacceptable overcurrents and short circuit currents, thus ensuring safety up to their nominal breaking capacity. Moreover, the D0 fuse-links categorized as 'gG' provide additional protection for equipment and installations against the dynamic effects associated with high short circuit currents. The specifications include an ampere rating of 25 A and a rated voltage of 440 V AC and 250 V DC. The fuse has a diameter of 0.59 inches and a power dissipation at rated current value of 3 W. Constructed from ceramic, the body insulating material contributes to its durability. The fuse-link is identified by a yellow color code and is designed for clip mounting.

The Amp-Trap 2000 SmartSpot time-delay A2D-R fuses offer IEC Type 2 'no damage' protection for mains, feeders, and branch circuits. These fuses are engineered to open rapidly in extreme fault conditions, ensuring maximum short circuit protection to prevent damage to motor starters, switches, and other circuit components. In addition, they provide the necessary time-delay for accommodating motor in-rush currents.A2D-R fuses are suitable for replacing older 250V Class H, K, or RK5 fuses that may already be in use. With a rated AC and DC voltage of 250V and an ampere rating of 1A, these fuses are compliant with ROHS standards. The Class RK1 designation indicates their time-delay characteristic, while the clip mounting facilitates easy installation. The maximum interrupting rating is 200 kA, ensuring high reliability under fault conditions.Constructed with a body made from PolyTube, the fuses feature tin-plated copper for their terminal connections, utilizing a ferrule type. The dimensions of the product include a weight of 0.04 lb, a diameter of 0.56 in, and a length of 2 in, making them compact and lightweight.

The OT and OTN series of fuses are designed for general purpose applications, providing cost-effective protection for circuits such as lighting and heating. They are capable of safely interrupting short-circuit currents up to 50,000 amperes across all ratings. Notably, OTN(15-60) meets the Canadian electrical code requirement for Type P low melting-point, non-time-delay fuses.Constructed with a rated voltage of 250V for both AC and DC applications, these fast-acting fuses are classified under Class K5. Each fuse features a clip mounting design and connections made from tin-plated copper, ensuring robust connectivity. The protective body is molded from PolyTube material, enhancing durability.With a compact design, the fuse measures 2.06 inches in diameter and 8.63 inches in length, weighing 1.45 lb. When packaged, the dimensions are 2.12 inches in width and length, with a height of 8.81 inches and a total weight of 1.52 lb.

The A70QS high-speed semiconductor fuse is engineered for use in equipment requiring reliable protection at 700V. With an ampere rating of 800 A, it features a low I²t value which enhances its protective capabilities, providing longer operational life even under cyclic loads.Additionally, this fuse minimizes power loss during operation, making it suitable for applications such as motor drives and uninterruptible power supplies (UPS). The fuse is constructed from a GMG insulating material and is equipped with bolted connections made of tin-plated copper, ensuring robust electrical integrity. With a maximum operating temperature of 80 °C and a breaking capacity of 40 kA, the A70QS is a reliable choice for protecting sensitive electronic systems.

The fuse base accommodates Class H, K, and R 250V and 600V power fuses, providing versatile connectivity options for various wire types. It supports stranded or solid copper and aluminum wires with screw, pressure plate, box, and special order stud connectors. The insulators are crafted from either molded glass-filled polycarbonate (GFPC) or phenolic materials, demonstrating a verified dielectric strength exceeding 2500V.Notably, this 60A fuse block includes a unique adder block, allowing for the creation of multipole segmented blocks by snapping onto 1-, 2-, or 3-pole configurations as required. All clips are manufactured from high conductivity tin-plated copper; users can select between spring reinforced or non-spring reinforced clips for the 30A and 60A models. For 100A and higher ratings, spring reinforced clips are standard.This product operates at frequencies of 50/60 Hz, with a maximum operating temperature of 80 °C. It has a short circuit current rating (SCCR) of 200 kA and is designed for direct screw mounting. The fuse installation method is clip-in, and the reinforced box connection ensures reliable wire attachment.

The NH fuse-link system is a plug-in fuse solution that includes essential components such as a fuse base, which may incorporate terminal covers and phase barriers, as well as the fuse-link itself featuring a blade contact. Additionally, a fuse-link replacement device, the LV HRC fuse puller, is available for maintenance.Type gG NH fuse-links are characterized by their full-range breaking capacity, making them suitable for the protection of cables and equipment. They are capable of interrupting current surges, from the lowest fusing current up to their specified breaking capacity. This functionality allows for standalone usage to ensure protection against electrical faults.These fuse-links also safeguard electrical devices and industrial systems against the electrodynamic effects associated with high short-circuit currents. The NH fuse-links comply with VDE 0636 Part 201 and IEC 60269-1 and -2 standards, ensuring reliable performance in various applications. The ampere range for these fuse-links spans from 2 A to 630 A, and they are constructed from materials such as ceramic for the body and copper with silver plating for the contacts.

The NH fuse-link system consists of a fuse base, which may include terminal covers and phase barriers, along with a fuse-link equipped with blade contacts and a replacement device (LV HRC fuse puller). Due to the design of this system, which does not guarantee non-interchangeability of rated current, installation should be performed by qualified professionals.Type aM NH fuse-links are classified as partial-range breaking capacity devices, primarily utilized for the protection of motor circuits. These fuse-links are effective as they are strongly current-limiting and exhibit low power losses. They can interrupt currents ranging from 6.3 times the rated current (In) up to their maximum breaking capacity, making them suitable exclusively for short-circuit protection. For overload protection, it is essential to pair these fuse-links with other switchgear. Importantly, the rated current of these fuse-links can match the nominal current of the motor they protect.