Mersen Industrial Automation Spare Parts

The fuse bases are suitable for 600V and 60A Class H, K, and R power fuses, accommodating a diverse selection of screw, pressure plate, and box connectors for stranded or solid copper or aluminum wires. The insulators, composed of molded glass-filled polycarbonate (GFPC) or phenolic, exhibit a verified dielectric strength exceeding 2500V.For configurations, the 30, 60, and 100A fuse blocks feature an innovative adder block that can be easily integrated onto 1-, 2-, or 3-pole blocks, allowing for the creation of multipole segmented blocks tailored to specific requirements. All fuse clips utilize high conductivity tin-plated copper, offering options for both spring reinforced and non-spring reinforced clips for 30A and 60A models, while clips rated at 100A and above are exclusively spring reinforced.The product line adheres to operational frequencies of 50/60 Hz, with a maximum operating temperature of 80 °C, and a minimum storage temperature of -25 °C. The short circuit current rating (SCCR) is established at 50 kA, with a torque rating of 45 lb-in. This unit is designed for direct screw mounting and facilitates clip-in fuse installation, ensuring reliable performance in demanding environments.

The Power Distribution Block (PDB) complies with UL 1953 standards and is engineered for safe cable splicing, effectively distributing primary power into secondary circuits. It meets the spacing requirements as outlined in UL508A and the National Electrical Code®. This model supports primary inputs with up to 30 secondary outputs, and it is available in both aluminum and copper configurations. The block allows for the addition of optional adder poles, facilitating customization of wire combinations for increased flexibility without the need for tools. Constructed with virtually unbreakable glass-filled polycarbonate insulators, the block provides enhanced safety and shock resistance, particularly with the optional hinged safety covers that can be installed effortlessly. The rated voltage for both AC and DC applications is 1000V, accommodating a maximum temperature of 80 °C. In terms of short circuit ratings, this block is capable of handling up to 400 kA, ensuring reliability in various operational conditions. The connectors are tin-plated aluminum, supporting both solid and stranded conductors, with a torque rating of 120 for larger wire sizes. For additional specifications, the block features a mounting method via direct screw, maintains a flammability rating of 94 V-0, and includes a test probe hole for circuit verification. The MPDB series thus offers a comprehensive solution for power distribution needs.

The Class H Fast-Acting Fuse is designed for general purpose applications where short-circuit currents do not exceed 10,000 amperes. It operates at a voltage of 250VAC and features a cylindrical body style. This fuse is compatible with replacement links from the RL series, available in amperage ratings from 2 to 600A.Constructed with a brass contact material, this fuse ensures reliable performance in various settings. It is compliant with UL standards, specifically UL Listed to Standard 248-7 and has CSA certification. Additionally, it meets CE requirements and is ROHS compliant, thus ensuring adherence to safety and environmental regulations. The fuse mounts via a clip and utilizes a ferrule blade connection terminal type.

The Protistor® cylindrical fuse, size 14x51 gR, is engineered for the protection of power semiconductors, adhering to IEC standards 60269-1 and -4. With a high breaking capacity of 160 kA at 690 VAC, this fuse operates effectively within a current range of 1 to 63 A. The model with a trip-indicator is also available, enhancing operational safety.Constructed with a ceramic insulating body and featuring silver-plated copper connection terminals, the fuse is designed for reliable performance. The power dissipation at its rated current is 8.75 W, with a clearing I²T of 2250 A²s and a melting I²T of 387 A²s, ensuring rapid response to overcurrent conditions. The fuse is mounted using a clip mechanism, facilitating straightforward installation.

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.

One-Time OT and OTN general purpose fuses provide low cost protection for feeder and branch-circuits serving lighting, heating, and other non-motor loads. OT and OTN fuses will safely interrupt available short-circuit currents up to 50,000 amperes in all ratings. OT and OTN fuses are not rejection fuses and care should be taken to ensure that replacement fuses do not have lower interrupting ratings than original fuses. OTN(15-60) satisfy the Canadian electrical code requirement for Type P low melting-point, non-time-delay fuses.

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.

Tri-Onic TR-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 TR-R safely handle harmless starting currents and inrush currents associated with today's motors and transformers.

The NH system is classified among plug-in fuse systems and is composed of: fuse-base (possibly including terminal covers and phase barriers) fuse-link with blade contact fuse-link replacement device (LV HRC fuse puller) Since the design of this system cannot guarantee non-interchangeability of rated current it must be handled by a qualified professional. Type gG NH fuse-links are full range breaking capacity fuse-links and are used to protect cables and equipment. They can interrupt any current surge, from the lowest fusing current up to their breaking capacity, and so can be used alone as protection. They also protect electrical devices and industrial set-ups from the electrodynamic effects of very high short-circuit currents.

The NH system is classified among plug-in fuse systems and is composed of: fuse-base (possibly including terminal covers and phase barriers) fuse-link with blade contact fuse-link replacement device (LV HRC fuse puller) Since the design of this system cannot guarantee non-interchangeability of rated current it must be handled by a qualified professional. Type gG NH fuse-links are full range breaking capacity fuse-links and are used to protect cables and equipment. They can interrupt any current surge, from the lowest fusing current up to their breaking capacity, and so can be used alone as protection. They also protect electrical devices and industrial set-ups from the electrodynamic effects of very high short-circuit currents.

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. All cylindrical fuse-links have ceramic bodies and silver-plated ferrules. Cylindrical fuse-links aM are partial range fuses. They protect electrical devices in case of unacceptable high short-circuit against destruction due high current limiting and low thermal let-through values. They cut off currents more than 6.3xln until the maximum breaking capacity (rated breaking capacity). Cylindrical fuse-links aM are mainly used for the protection of installation switch gear in otor circuit currents. For classification of the cylindrical fuse-links the nominal current of the fuse-link can be selected respective to the nominal current of the motor. Our technology and process was designed to ensure highly reliable technical performance.

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. All cylindrical fuse-links have ceramic bodies and silver-plated ferrules. 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.

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. All cylindrical fuse-links have ceramic bodies and silver-plated ferrules. Cylindrical fuse-links aM are partial range fuses. They protect electrical devices in case of unacceptable high short-circuit against destruction due high current limiting and low thermal let-through values. They cut off currents more than 6.3xln until the maximum breaking capacity (rated breaking capacity). Cylindrical fuse-links aM are mainly used for the protection of installation switch gear in otor circuit currents. For classification of the cylindrical fuse-links the nominal current of the fuse-link can be selected respective to the nominal current of the motor. Our technology and process was designed to ensure highly reliable technical performance.

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. All cylindrical fuse-links have ceramic bodies and silver-plated ferrules. Cylindrical fuse-links aM are partial range fuses. They protect electrical devices in case of unacceptable high short-circuit against destruction due high current limiting and low thermal let-through values. They cut off currents more than 6.3xln until the maximum breaking capacity (rated breaking capacity). Cylindrical fuse-links aM are mainly used for the protection of installation switch gear in otor circuit currents. For classification of the cylindrical fuse-links the nominal current of the fuse-link can be selected respective to the nominal current of the motor. Our technology and process was designed to ensure highly reliable technical performance.

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. All cylindrical fuse-links have ceramic bodies and silver-plated ferrules. 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.

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. All cylindrical fuse-links have ceramic bodies and silver-plated ferrules. Cylindrical fuse-links aM are partial range fuses. They protect electrical devices in case of unacceptable high short-circuit against destruction due high current limiting and low thermal let-through values. They cut off currents more than 6.3xln until the maximum breaking capacity (rated breaking capacity). Cylindrical fuse-links aM are mainly used for the protection of installation switch gear in otor circuit currents. For classification of the cylindrical fuse-links the nominal current of the fuse-link can be selected respective to the nominal current of the motor. Our technology and process was designed to ensure highly reliable technical performance.

The NH system is classified among plug-in fuse systems and is composed of: fuse-base (possibly including terminal covers and phase barriers) fuse-link with blade contact fuse-link replacement device (LV HRC fuse puller) Since the design of this system cannot guarantee non-interchangeability of rated current it must be handled by a qualified professional. Type gG NH fuse-links are full range breaking capacity fuse-links and are used to protect cables and equipment. They can interrupt any current surge, from the lowest fusing current up to their breaking capacity, and so can be used alone as protection. They also protect electrical devices and industrial set-ups from the electrodynamic effects of very high short-circuit currents.

Extremely high breaking capacity fuses: Protection of power semiconductors as per IEC standard 60269-1 and -4 690V voltage rating as per IEC 33 gR class (current ratings 12 to 90A) as per VDE 636-23 - Clearing all overloads - Improved safety and protection - Enabling selective coordination with all fuses within distribution circuit aR class (current ratings 100A) according to VDE 636-23 and IEC 60269-4 Connection as per: - German standard DIN 43653/00C - British standard BS88-4 These fuses are UL Recognized

Extremely high breaking capacity fuses: Protection of power semiconductors as per IEC standard 60269-1 and -4 690V voltage rating as per IEC 33 gR class (current ratings 12 to 90A) as per VDE 636-23 - Clearing all overloads - Improved safety and protection - Enabling selective coordination with all fuses within distribution circuit aR class (current ratings 100A) according to VDE 636-23 and IEC 60269-4 Connection as per: - German standard DIN 43653/00C - British standard BS88-4 These fuses are UL Recognized