| CATALOG NUMBER |
2GN01 |
| Manufacturer |
Eaton Moeller |
| Product Name |
Eaton Bussmann series low voltage D0 screw cap guage piece |
| Catalog Number |
2GN01 |
| Model Code |
GAUGE PIECE DO1 2A 400V FOR E14 |
| EAN |
5027590472593 |
| Product Length/Depth |
7.9 mm |
| Product Height |
12 mm |
| Product Width |
12 mm |
| Product Weight |
0.52 g |
| Compliances |
CE |
| Certifications |
IEC |
Product Name
Eaton 2GN01 Gauge Piece D01 2A 400V for E14
Product Introduction
The Eaton 2GN01 is a precision-engineered fuse gauge piece designed to enable the safe and proper installation of D01 2A 400V cylindrical fuse links into E14 fuse holders. This adapter ensures correct mechanical fit and electrical contact, guaranteeing reliable circuit protection in control and auxiliary applications.
Product Description
The Eaton 2GN01 is a critical mounting adapter, commonly referred to as a gauge piece or adapter sleeve, that forms an essential link within standardized fuse protection systems. Its primary role is to provide a secure and compatible interface between a specific smaller-diameter fuse link and a larger, standardized fuse base. This component is engineered to solve a common need in electrical panel design: utilizing a wide range of fuse current ratings within a common, universal fuse holder size. Specifically, the 2GN01 allows a "D01" type cylindrical fuse link—with a 2 Ampere current rating and a 400 Volt voltage rating—to be correctly and safely installed into a standard "E14" type fuse holder or fuse base.
The gauge piece itself is a cylindrical sleeve meticulously manufactured from high-quality, durable insulating material. This material is typically a thermosetting plastic or another compound chosen for its excellent dielectric strength, mechanical robustness, heat resistance, and flame-retardant properties. Its internal diameter is precisely calibrated to accept the outer body of the D01 fuse link with a snug fit. This ensures the fuse is held firmly in place, preventing any axial or radial movement that could occur during transportation, installation, or operation in vibrating environments. The external diameter of the sleeve is manufactured to match the internal dimensions of the E14 fuse holder, allowing the entire assembly (fuse + gauge piece) to slide smoothly and securely into the base until it is fully seated.
A key design feature is often a flange or an increased diameter at one end of the sleeve. This flange acts as a positive stop, preventing the assembly from being inserted too deeply into the E14 base and ensuring the contact ends of the D01 fuse are positioned at the exact correct depth to mate properly with the base's internal spring-loaded contacts. This precise positioning is paramount. It guarantees a low-resistance, stable electrical connection between the fuse's metallic end caps and the terminals of the holder. A poor connection, caused by a misaligned or loose fuse, can lead to contact resistance, localized heating, oxidation, and ultimately, a failure of the protective device to operate correctly under fault conditions.
The use of this gauge piece is not merely a convenience but a matter of safety and compliance with electrical installation standards. Without it, a D01 fuse would be physically loose inside an E14 holder. This looseness compromises the electrical connection, can lead to arcing, and may prevent the fuse from dissipating heat effectively into the holder, potentially altering its tripping characteristics. The gauge piece fills the annular gap, providing mechanical support, proper heat dissipation, and ensuring the fuse's longitudinal axis is aligned with the contact springs. This alignment is critical for the fuse to carry its rated current continuously without overheating and to ensure that in the event of a short-circuit, the fuse can interrupt the fault safely and according to its designed time-current curve. The product code "2GN01" identifies it within Eaton's component system, and "for E14" clearly denotes its application. It is a simple yet vital component that upholds the integrity of the entire circuit protection scheme in control panels and distribution boards.
Product Advantages
The primary advantage of the Eaton 2GN01 gauge piece is the assurance of a safe and code-compliant installation. It enforces the correct mating of components as intended by design standards, directly mitigating risks associated with improper fuse mounting, such as overheating, fire hazard, and unreliable circuit protection. It transforms an incompatible pairing into a safe and approved assembly.
It delivers essential mechanical stability and vibration resistance. By snugly encasing the D01 fuse, the gauge piece eliminates any play or movement within the E14 holder. This is crucial in industrial settings where equipment vibration is common. A stable fuse connection maintains consistent electrical performance, prevents fretting corrosion at the contacts, and avoids nuisance failures or intermittent operation that could plague a loosely fitted fuse.
The component offers significant flexibility and inventory simplification. It allows panel builders and maintenance departments to standardize on the ubiquitous E14 fuse holder size for a broad range of control circuit protection needs. By stocking E14 bases and a selection of D01 fuses with corresponding gauge pieces, they can cover numerous low-current protection requirements without needing multiple, different-sized holders. This streamlines procurement, reduces spare part varieties, and simplifies panel design.
Furthermore, it guarantees the preservation of the fuse's protective performance. A fuse's operational characteristics—its ability to carry current, withstand harmless inrush, and clear faults—are predicated on proper installation with good thermal and electrical contact. The gauge piece ensures these conditions are met. It prevents the increased resistance and heating that could cause a fuse to operate prematurely on overload or, conversely, to not operate quickly enough during a short-circuit. By using this adapter, engineers and technicians can have full confidence that the 2A fuse will perform exactly as its specifications dictate, providing reliable protection for sensitive and costly control components like PLC I/O modules, sensor loops, and relay coils.
Application Scenarios
The Eaton 2GN01 gauge piece is predominantly used in industrial control and automation panels where E14 fuse holders are the standard for protecting low-voltage control circuits. Its most common application is within Motor Control Centers (MCCs), control cabinets for conveyor systems, packaging machinery, and automated production lines.
It is employed to securely install 2A fuses for protecting the coil circuits of contactors and relays, power supplies for programmable logic controllers (PLCs), input/output (I/O) modules, solenoid valves, indicator lights, and control transformers with low VA ratings. For example, it would be standard in protecting a 24VDC power supply feeding a bank of sensors.
This component is also found in building technical management panels for HVAC systems, access control systems, and lighting automation. Furthermore, it is used in specialized equipment across various sectors, including medical device manufacturing, textile machinery, printing presses, and laboratory instrumentation—anywhere DIN-rail mounted E14 fuse bases are used to provide modular and accessible protection for electronic control circuits requiring precise 2A overcurrent protection.
FAQ
What is this gauge piece for?
It is an adapter that allows you to correctly and safely install a smaller D01 size cylindrical fuse into a larger, standard E14 size fuse holder.
Is it mandatory to use this adapter?
Yes, for safety and proper operation. Installing a D01 fuse directly into an E14 base without it will result in a loose fit, poor electrical contact, risk of overheating, and unreliable protection. It is a required component for compatibility.
Are there different gauge pieces for different amperage fuses?
No. The gauge piece is designed for the physical size of the fuse body (D01). The same 2GN01 gauge piece is used for any D01 fuse, regardless of its current rating (e.g., 1A, 2A, 4A). You must, however, always select the fuse with the correct amperage for your specific circuit.
What material is it made from?
It is made from a high-quality, rigid insulating material, such as thermoset plastic. This material is chosen for its electrical insulation properties, mechanical strength, and resistance to heat and flames.
How do I use it correctly?
First, insert the D01 fuse fully into the gauge piece. Then, insert this combined unit into the E14 fuse holder, pushing until it clicks or seats firmly. Always ensure the circuit is de-energized before handling any fuses or components.
