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MERSEN FUSE CC TD FUSE 600V 20A ATDR ATDR20
The ATDR20 Fuse combines reliable time-delay performance with a compact Class CC form factor, ensuring superior circuit protection for sensitive industrial equipment. Rated at 600VAC and 300VDC with a 20A current capacity, it effectively safeguards against overloads and short circuits in demanding control panel and branch circuit applications.
£12.51
Why Choose the Mersen ATDR20 Class CC Fuse?
The Mersen ATDR20 is a compact and dependable Class CC time-delay industrial fuse designed to protect motor circuits, transformers, control equipment and industrial machinery against overloads and short-circuit faults. As part of the established Mersen Amp-Trap 2000® ATDR series, it combines current-limiting performance with the ability to withstand temporary start-up currents.
The ATDR20 is particularly suitable for circuits containing motors, transformers, solenoids and other inductive equipment that can draw a high initial current during energisation. Its time-delay operating characteristic helps prevent unnecessary fuse operation during normal start-up while providing effective protection against sustained overloads and severe electrical faults.
With a rated current of 20 A, an AC voltage rating of 600 V and a DC voltage rating of 300 V, the ATDR20 is suitable for demanding industrial power and control applications. Its compact rejection-style construction enables installation in compatible Class CC fuse holders while helping prevent substitution with incorrectly rated fuse types.
Key Advantages
- Compact Class CC time-delay fuse for industrial circuit protection.
- 20 A current rating suitable for motors and industrial equipment.
- 600 V AC and 300 V DC voltage ratings.
- Time-delay performance accommodates temporary equipment inrush currents.
- Current-limiting operation helps reduce damaging fault energy.
- Rejection-style design supports correct fuse selection and installation.
Key Features
- Mersen Amp-Trap 2000® ATDR fuse series.
- 20 A rated current.
- 600 V AC rated voltage.
- 300 V DC rated voltage.
- Class CC current-limiting fuse construction.
- Time-delay characteristics for motor and transformer loads.
- High interrupting capacity for demanding fault conditions.
- Compact cylindrical body with rejection-style ferrules.
Reliable Protection for Motors and Industrial Equipment
Time-delay fuses such as the Mersen ATDR20 allow temporary inrush currents to pass without opening the circuit unnecessarily. This is especially important for motors, transformers and electromagnetic equipment that may draw several times their normal operating current during start-up.
During a short circuit, the ATDR20 provides current-limiting operation that helps reduce the peak current and electrical energy reaching downstream equipment. This can minimise thermal and mechanical damage to conductors, contactors, motor controllers and other valuable industrial components.
Typical Applications
- Industrial motor branch circuits.
- Control transformers and power supplies.
- Motor control centres and control panels.
- Industrial machinery and production equipment.
- Heating, ventilation and air-conditioning systems.
- OEM automation and machine-building applications.
Technical Specifications
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| Current | 20 A | |
|---|---|---|
| Voltage | 600 V | |
| Fuse Type | UL class | |
| Fuse Class | Time delay | |
| Item number | ATDR20-6PK | |
| Description | Fuse ATDR - Class CC - Time-Delay 600VAC 300VDC 20A Ferrule Amp-Trap 2000® 6 pack | |
| EAN/UPC Code | 782001355425 | |
| Rated voltage AC UL | 600 V | |
| Rated voltage DC UL | 300 V | |
| Frequency (Hz) | 50/60 Hz | |
| Ampere Rating | 20 A | |
| AC or DC | AC/DC | |
| Fuse Class | Class CC | |
| Speed/Characteristic | Time Delay | |
| Mounting | Clip | |
| AC Max I.R./Breaking Capacity | I1: 200 kA | |
| Connection/Terminal Material | Tin-Plated Copper | |
| Connection/Terminal Type | Ferrule | |
| Product Diameter | 10.4 mm | |
| Product Length | 38.1 mm | |
| Sell Pack Quantity | 6 EA | |
| Sell Pack Weight | 0.059 kg | |
| Sell Pack Width | 67.3 mm | |
| Sell Pack Length | 47.8 mm | |
| Sell Pack Height | 12.7 mm | |
| Product group | Low Voltage UL/CSA Fuses | |
| Body/Insulating Material | GMG | |
| Product Weight | 0.0091 kg | |
| HS Code | 85361050 | |
| Country of Manufacture | Mexico |
Frequently Asked Questions
What is the Mersen ATDR20 used for?
The ATDR20 is used to protect motors, transformers, control equipment and industrial branch circuits against overloads and short-circuit faults.
What is the current rating of the ATDR20?
The Mersen ATDR20 has a rated current of 20 A.
What voltage ratings does the ATDR20 have?
The fuse is rated for electrical systems operating at up to 600 V AC or 300 V DC.
Is the Mersen ATDR20 a time-delay fuse?
Yes. Its time-delay characteristic allows temporary motor and transformer inrush currents while maintaining protection against sustained overloads and short circuits.
Which fuse holder is compatible with the ATDR20?
The ATDR20 should be installed in a compatible Class CC rejection-style fuse holder with suitable current and voltage ratings.
Trusted Industrial Circuit Protection
Mersen Amp-Trap 2000® ATDR Class CC fuses are widely used by electrical engineers, panel builders and machine manufacturers for reliable motor, transformer and industrial circuit protection.
