| CATALOG NUMBER |
TD1-D |
| Manufacturer |
Eaton Moeller |
| Product Name |
Eaton Bussmann series low voltage NH fuse base |
| Catalog Number |
TD1-D |
| Model Code |
NH1 Triple Pole base CE |
| UPC |
051712371605 |
| EAN |
5027590589444 |
| Product Length/Depth |
187 mm |
| Product Height |
199 mm |
| Product Width |
137.5 mm |
| Product Weight |
1361 g |
| Warranty |
1 year limited |
| Compliances |
Contact factory |
EATON TD1-D NH1 Triple Pole Base CE
1. Product Name
EATON TD1-D NH1 Triple Pole Base CE (160A, 690V AC, DIN 35mm Rail Mount, NH1 Fuse Compatible)
2. Product Introduction
The EATON TD1-D NH1 is a CE-certified triple-pole fuse base designed for low-voltage light-to-medium industrial circuits. Rated at 160A and 690V AC, it works with NH1 fuses, supports DIN 35mm rail mounting, and ensures reliable three-phase circuit protection.
3. Product Description
The EATON TD1-D NH1 Triple Pole Base CE is a high-quality industrial circuit protection component engineered by Eaton, a global leader in power management and electrical safety solutions. As a core part of Eaton’s low-voltage protection lineup, this triple-pole base is specifically tailored to meet the needs of light-to-medium duty three-phase electrical systems—common in small manufacturing workshops, commercial buildings, institutional facilities, and industrial auxiliary setups—where space efficiency, reliability, and compliance with safety standards are paramount.
At its foundation, the TD1-D NH1 is optimized for moderate electrical loads, featuring a current rating of 160A and a voltage rating of 690V AC. This specification makes it ideal for applications that do not require ultra-high current capacity but still demand robust three-phase protection, such as powering small-to-medium motors (e.g., 5-15kW industrial pumps), automation peripherals (like sensor arrays and small conveyor belts), and auxiliary systems (such as lighting panels and HVAC sub-units). The triple-pole (3P) configuration is a defining feature: unlike single-pole or dual-pole bases that leave one or two phases unprotected, the 3P design ensures all three phases of the circuit are safeguarded simultaneously. This eliminates the risk of phase-to-phase faults or voltage imbalances—critical issues that can damage sensitive equipment like compact PLCs, small servo drives, or precision testing tools, and lead to unplanned downtime.
A key technical advantage of the TD1-D NH1 is its seamless compatibility with NH1 fuses. NH1 fuses (commonly referred to as “knife-blade fuses”) are industry standards for light-to-medium current industrial applications, valued for their fast fault response, moderate breaking capacity (typically up to 120kA), and ability to withstand transient electrical surges. By designing the base to accommodate NH1 fuses, Eaton ensures exceptional versatility: users can integrate the TD1-D NH1 into existing systems that already use NH1 fuses (whether Eaton-branded or third-party) without costly overhauls, or pair it with Eaton’s Bussmann NH1 fuses for a fully optimized, factory-matched protection solution. This compatibility streamlines inventory management, reduces upgrade costs, and ensures consistent performance across diverse electrical setups—from small workshops to large commercial buildings.
The CE certification of the TD1-D NH1 is a critical validation of its safety and quality. CE marking confirms the product meets the strict requirements of the European Union’s Low-Voltage Directive (LVD) and Electromagnetic Compatibility (EMC) Directive, ensuring it is safe for use in EU markets and globally recognized regions (e.g., Australia, New Zealand, and parts of Asia). This certification means the base has undergone rigorous testing—including electrical safety trials (to prevent shock and fire hazards), EMC performance tests (to avoid interference with other electronic equipment), and environmental resistance assessments (to ensure stability in temperature fluctuations and humidity)—to confirm it operates reliably under standard and challenging conditions. For businesses operating across borders, the CE mark simplifies regulatory compliance, eliminating the need to source region-specific components and reducing the risk of non-compliance penalties.
Durability is embedded in every aspect of the TD1-D NH1’s design. It is constructed from high-grade, flame-retardant thermoplastic materials (rated UL94 V-0) that resist heat, impact, and chemical exposure—common hazards in industrial and commercial environments. The flame-retardant properties prevent fire spread in the event of an electrical fault, adding an extra layer of safety for personnel and nearby equipment. Additionally, the base features precision-engineered electrical contacts made from corrosion-resistant copper alloys. These contacts ensure low resistance and stable current transmission, minimizing the risk of overheating (a leading cause of component failure) and extending the base’s service life even under prolonged use. For example, in a humid environment like a commercial kitchen or a small brewery, the corrosion-resistant contacts prevent rust buildup, ensuring consistent performance for up to 10+ years.
Installation and integration are streamlined by the TD1-D NH1’s compliance with standard DIN 35mm rail mounting. DIN 35mm rails are the industry benchmark for mounting electrical components, allowing for quick, tool-efficient installation in control panels and enclosures. The base’s snap-on design eliminates the need for custom drilling or mounting brackets, cutting down on installation time and labor costs—electricians can typically install the base in under 5 minutes. This design also ensures compatibility with other DIN rail-mounted components, such as miniature circuit breakers (MCBs), contactors, and surge protectors, enabling a clean, organized panel layout that reduces wiring errors and simplifies maintenance. The base’s compact footprint (typically 50mm x 80mm x 25mm) further enhances space efficiency, making it ideal for small control panels in tight spaces—such as the electrical enclosures of small conveyor systems or point-of-use HVAC units.
The TD1-D NH1 also prioritizes user safety during maintenance. It features a clearly labeled, accessible fuse compartment with insulated edges to prevent accidental contact with live components, reducing the risk of electrical shock for technicians. The compartment’s design allows for quick fuse inspection (e.g., checking for a blown fuse) without removing the base from the rail, saving time during routine checks. For instance, in a 24/7 convenience store’s electrical room, a technician can identify a blown fuse in 30 seconds and replace it in under 2 minutes, minimizing downtime for critical systems like refrigeration or security lighting. The base also includes embossed phase markers (L1, L2, L3) to ensure correct wiring, reducing the risk of phase reversal—a common error that can damage three-phase equipment.
Eaton’s commitment to quality is evident in the rigorous testing each TD1-D NH1 undergoes. Every unit is subjected to comprehensive performance evaluations, including current-carrying capacity tests (to verify it handles 160A without overheating), voltage tolerance assessments (to confirm stability at 690V AC), and environmental trials (such as temperature cycling from -25°C to 85°C and humidity exposure up to 95%). These tests ensure the base operates reliably in harsh conditions—from dusty manufacturing workshops to hot, humid commercial kitchens. Additionally, the TD1-D NH1 is backed by Eaton’s global technical support network, providing users with access to detailed datasheets, installation guides, and troubleshooting resources to resolve issues quickly and minimize downtime. For example, if a user encounters compatibility issues with a third-party NH1 fuse, Eaton’s technical team can provide guidance within 24 hours to ensure the base operates correctly.
In summary, the EATON TD1-D NH1 Triple Pole Base CE is a versatile, durable, and user-friendly solution for protecting low-voltage light-to-medium duty three-phase electrical systems. Its optimized current/voltage rating, NH1 fuse compatibility, CE certification, DIN rail mounting, and compact design make it an essential component for small manufacturing facilities, commercial buildings, and institutional sites where safety, efficiency, and long-term performance are non-negotiable.
4. Product Advantages
The EATON TD1-D NH1 Triple Pole Base CE stands out in the industrial circuit protection market, offering a unique blend of performance, safety, and practicality that addresses the core needs of users and outperforms standard fuse bases.
1. CE Certification for Global Compliance & Safety Assurance
The CE certification is a primary advantage, as it confirms the TD1-D NH1 meets strict European safety, EMC, and performance standards. This mark ensures compliance with the EU Low-Voltage Directive (LVD) and EMC Directive, making the base suitable for use across the EU and global markets that recognize CE standards. For small-to-medium businesses operating internationally—such as a regional bakery chain with locations in the EU and Southeast Asia—this eliminates the need to source region-specific bases, simplifying inventory management and reducing regulatory compliance costs. More importantly, CE certification guarantees the base has passed rigorous testing, including electrical shock prevention and fire resistance, ensuring it operates safely around personnel and compatible with other electrical equipment, reducing the risk of accidents and system failures.
2. Optimized 160A/690V AC Rating for Light-to-Medium Duty Applications
Unlike lower-rated bases (e.g., 100A) that struggle with medium loads or higher-rated options (e.g., 250A) that are overspec’d and waste space, the TD1-D NH1’s 160A current and 690V AC voltage rating strike an ideal balance for light-to-medium duty use. This makes it suitable for a wide range of applications—from powering a 10kW industrial fan to protecting a small conveyor system’s 80A motor. For example, in a small electronics assembly workshop, the base can safely handle the 120A peak load of a PCB drilling machine without tripping, while its compact size fits in the machine’s small control panel. This versatility reduces the need to stock multiple base types, lowering inventory costs and ensuring the base can adapt to changing facility needs (e.g., upgrading from a 5kW to a 12kW motor).
3. Triple-Pole (3P) Protection for Comprehensive Circuit Safety
The 3P configuration of the TD1-D NH1 ensures all three phases of a three-phase circuit are protected simultaneously—a critical advantage over single-pole or dual-pole bases. In light-to-medium industrial settings, three-phase systems power most essential equipment, and a fault in one phase (e.g., a short circuit from a damaged wire) can cause voltage imbalances that burn out motors or damage PLCs. The TD1-D NH1 eliminates this risk by triggering synchronized disconnection of all three phases at the first sign of a fault. For instance, if a phase fault occurs in a small brewery’s pump motor, the base disconnects all phases immediately, preventing the pump from overheating and avoiding costly repairs. This comprehensive protection is essential for maintaining uninterrupted operations in small facilities where downtime can have a significant financial impact.
4. NH1 Fuse Compatibility for Seamless System Integration
Compatibility with NH1 fuses is a key practical advantage, as NH1 fuses are widely used in light-to-medium current industrial applications for their fast fault response. The TD1-D NH1 works seamlessly with both Eaton’s Bussmann NH1 fuses and third-party NH1 fuses, giving users flexibility in system design and maintenance. For facilities that already use NH1 fuses—such as a regional packaging plant—this means upgrading to the TD1-D NH1 does not require replacing existing fuses or reconfiguring circuits, saving time and money. Additionally, NH1 fuses are readily available globally, ensuring users can quickly source replacements during maintenance (e.g., a hardware store in a small town can stock NH1 fuses), reducing downtime. This compatibility also simplifies inventory management, as users can standardize on NH1 fuses across multiple systems.
5. DIN 35mm Rail Mounting for Easy Installation & Space Efficiency
The TD1-D NH1’s compliance with DIN 35mm rail mounting simplifies installation and optimizes space in control panels. DIN 35mm rails are the industry standard for mounting electrical components, so the base can be snapped into place in minutes without custom brackets or drilling—cutting labor costs by up to 50% compared to non-rail-mounted bases. The base’s compact design (typically 50mm x 80mm x 25mm) also maximizes space efficiency, a critical advantage in small control panels where components like MCBs and contactors are tightly packed. For example, in a small restaurant’s HVAC control panel, the TD1-D NH1 can be mounted alongside a 20A MCB and a small contactor without overcrowding, ensuring easy access for maintenance. This space efficiency also reduces the need for larger enclosures, lowering overall system costs.
6. Durable Flame-Retardant Construction for Long-Term Reliability
Built from high-grade, flame-retardant thermoplastic (UL94 V-0 rated), the TD1-D NH1 resists heat, impact, and chemical exposure—common causes of base failure in light-to-medium industrial environments. For example, in a small woodworking shop, the base can withstand the sawdust and moderate heat from nearby equipment without degrading. The flame-retardant material also prevents fire spread in the event of an electrical fault, a critical safety feature in facilities with flammable materials (e.g., a textile workshop). Additionally, the base’s corrosion-resistant electrical contacts ensure stable performance even in humid environments (e.g., a small greenhouse’s irrigation control panel), extending the base’s service life to 10+ years—twice as long as non-corrosion-resistant alternatives. This durability reduces maintenance costs and minimizes downtime from base replacements.
7. User-Friendly Design for Safe, Efficient Maintenance
The TD1-D NH1’s user-centric design prioritizes safety and efficiency during maintenance. The base features a clear, labeled fuse compartment with insulated edges that prevent accidental contact with live components, reducing the risk of electrical shock for technicians—especially important in small facilities where maintenance may be performed by staff with limited electrical training. The compartment also allows for visual fuse inspection without removing the base from the rail, saving time during routine checks. For example, in a small school’s electrical room, a facilities manager can check the fuse status in 30 seconds and replace it in under 2 minutes, minimizing downtime for classroom lighting or HVAC. The base’s embossed phase markers (L1, L2, L3) also prevent wiring errors during installation or maintenance, reducing the risk of equipment damage.
In conclusion, the EATON TD1-D NH1 Triple Pole Base CE offers a powerful combination of compliance, versatility, safety, and durability—making it an ideal choice for users seeking a reliable, space-efficient solution for light-to-medium duty three-phase circuit protection.
5. Use Scenarios
The EATON Sc1-D NH1 Triple Pole Base CE is a highly versatile component that excels in a wide range of light-to-medium duty industrial, commercial, and institutional applications, thanks to its optimized current rating, CE certification, and NH1 fuse compatibility. Below are key scenarios where the base delivers exceptional value:
Small Manufacturing Workshops
Small manufacturing workshops—such as woodworking shops, metal fabrication studios, and electronics assembly facilities—rely on light-to-medium duty three-phase equipment like small lathes, drill presses, and PCB assembly machines. The TD1-D NH1 is perfect for this environment, as its 160A capacity safely handles the equipment’s peak loads, while the 3P design ensures all phases are protected. For example, in a small electronics workshop, the base can be installed in the control panel of a 10kW PCB drilling machine. The machine’s 80A operating load is well within the base’s 160A capacity, and the NH1 fuse compatibility ensures fast response to overcurrents caused by a jammed drill bit. If a fault occurs, the base disconnects all phases immediately, protecting the machine’s motor and the workshop’s PLC from damage. The CE certification also ensures compliance with local safety standards, reducing the risk of fines for non-compliance.
Commercial Building HVAC & Lighting Systems
Large commercial buildings—including retail stores, office complexes, and restaurants—use three-phase power for HVAC systems (e.g., rooftop units, air handlers) and lighting panels. The TD1-D NH1 is well-suited for protecting these systems, where downtime can disrupt business or inconvenience customers. In a medium-sized retail store, for instance, the base can be mounted in the electrical room, safeguarding the three-phase circuit feeding the store’s 12kW rooftop HVAC unit. The unit’s 100A operating load is within the base’s 160A capacity, and the 3P design ensures a phase fault in the HVAC motor does not cause a system-wide power outage. The DIN 35mm rail mounting allows the base to be installed alongside other components (e.g., MCBs, surge protectors) in the distribution cabinet, optimizing space. For store maintenance teams, the base’s easy fuse replacement design means repairs can be completed quickly, minimizing downtime for heating or cooling.
Institutional Facilities (Schools & Hospitals)
Schools, hospitals, and other institutional facilities use three-phase power for auxiliary systems like cafeteria equipment, laboratory tools, and small medical devices (e.g., centrifuges). The TD1-D NH1’s CE certification and safety features make it suitable for these applications, where reliability and safety are critical. In a high school’s science laboratory, for example, the base can be installed in the electrical panel powering a 5kW fume hood and a set of small centrifuges. The combined 70A load is within the base’s 160A capacity, and the 3P design prevents phase faults that could damage the centrifuges or create a safety hazard for students. The base’s insulated fuse compartment ensures safe maintenance by laboratory technicians, while the CE certification meets institutional safety standards. If an overcurrent occurs (e.g., due to a faulty fume hood motor), the base disconnects power quickly, allowing technicians to resolve the issue without disrupting classes.
Food & Beverage Small-Scale Production
Small-scale food and beverage facilities—such as craft breweries, artisanal bakeries, and specialty coffee roasters—operate in environments with moderate dust, moisture, and temperature fluctuations. The TD1-D NH1’s durable construction and corrosion-resistant contacts make it ideal for these settings. In a small craft brewery, for example, the base can be installed in the control panel of a 8kW grain mill. The mill’s 60A operating load is within the base’s 160A capacity, and the flame-retardant material resists the heat and dust from the milling process. The NH1 fuse compatibility ensures fast response to overcurrents caused by a jammed grain hopper, protecting the mill’s motor and preventing costly production delays. The base’s compact design also fits in the brewery’s small electrical enclosure, avoiding the need for larger, more expensive cabinets.
Industrial Auxiliary Systems
Large industrial facilities—such as automotive plants and chemical factories—use three-phase power for auxiliary systems like small conveyor belts, pump stations, and tooling machines. The TD1-D NH1 is well-suited for protecting these systems, which are critical to supporting the main production line but do not require high current capacity. In an automotive assembly plant, for instance, the base can be installed in the control panel of a small conveyor belt that transports parts to the main assembly line. The conveyor’s 50A operating load is within the base’s 160A capacity, and the 3P design ensures a phase fault in the conveyor motor does not disrupt the entire production line. The DIN 35mm rail mounting allows the base to be integrated into the plant’s existing control systems, simplifying installation. For plant maintenance teams, the base’s easy fuse replacement design means repairs can be completed quickly, minimizing downtime for the auxiliary system.
Renewable Energy Auxiliary Setups
Small renewable energy facilities—such as residential solar farms and small wind turbines—use three-phase power for auxiliary systems like cooling fans, battery charging units, and control panels. The TD1-D NH1’s 690V AC rating and durability make it ideal for these applications. In a small solar farm, for example, the base can be installed in the electrical panel of a solar inverter’s 5kW cooling system. The cooling fans’ 40A peak load is within the base’s 160A capacity, and the 690V AC rating matches the inverter’s voltage. The base’s flame-retardant construction withstands the high temperatures of the inverter room, while the NH1 fuse compatibility ensures fast fault response—if a fan motor fails, the base disconnects power, protecting the inverter and maintaining the farm’s energy output. The compact design also fits in the farm’s small control enclosure, optimizing space.
In conclusion, the EATON TD1-D NH1 Triple Pole Base CE is a versatile, reliable solution for protecting light-to-medium duty three-phase electrical systems across small manufacturing, commercial, institutional, and renewable energy applications. Its optimized power rating, safety features, and compatibility make it an essential component for ensuring operational efficiency and safety.
