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MERSEN FUSE L TD FUSE 600V 400A A4BQ A4BQ400
MPN: A4BQ400
Special Price
£656.29
£546.91
Regular Price
£1,458.42
Why Choose the Fuse A4BQ - Class L - Time-Delay 600VAC 500VDC 400A Blade Amp-Trap 2000®?
The A4BQ400 delivers robust circuit protection for demanding industrial applications, with its Class L time-delay design ensuring reliable performance during temporary overloads and high inrush currents. Its high interrupting rating and blade-style construction guarantee safe, secure installation in critical power systems.
Rated for up to 600VAC and 500VDC at 400 amps, this Amp-Trap 2000® fuse is engineered for longevity, reducing nuisance fuse replacements and unplanned downtime. Ideal for protecting large motors, transformers, and distribution equipment.
Technical Specifications
- Item number: A4BQ400
- Description: Fuse A4BQ - Class L - Time-Delay 600VAC 500VDC 400A Blade Amp-Trap 2000®
- EAN/UPC Code: 782001930684
- Rated voltage AC UL: 600 V
- Rated voltage DC UL: 500 V
- Frequency (Hz): 50/60 Hz
- Ampere Rating: 400 A
- AC or DC: AC/DC
- Fuse Class: Class L
- Speed/Characteristic: Time Delay
- Mounting: Bolted
- AC Max I.R./Breaking Capacity: I1: 200 kA
- Connection/Terminal Material: Silver-Plated Copper
- Connection/Terminal Type: Blade
- Product Diameter: 50.8 mm
- Product Length: 219.2 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 1.1612 kg
- Sell Pack Width: 53.8 mm
- Sell Pack Length: 53.8 mm
- Sell Pack Height: 223.8 mm
- Product group: Low Voltage UL/CSA Fuses
- Body/Insulating Material: GMG
- Product Weight: 1.1068 kg
Product Code: A4BQ400
Key Benefits
- High interrupting rating of 200 kA ensures maximum protection.
- Time-delay characteristic prevents nuisance blowing during temporary overloads.
- Blade-style terminals allow for easy and secure bolted mounting.
- Silver-plated copper terminals provide excellent conductivity and corrosion resistance.
- Durable GMG insulating body enhances product longevity and safety.
Compatibility
The A4BQ400 fuse is compatible with Amp-Trap 2000® fuse holders and bolted mounting systems designed for Class L fuses. It is suitable for use in low voltage UL/CSA fuse applications including motor protection, transformer protection, and distribution panels.
Applications
- Protection of large industrial motors and motor control centres.
- Transformer circuit protection in commercial and industrial settings.
- Power distribution and panelboard protection.
- Industrial machinery and equipment requiring Class L time-delay fuses.
Frequently Asked Questions
What does Class L fuse mean?
Class L fuses are a type of low voltage fuse with a high interrupting rating and time-delay characteristics, designed to protect electrical circuits from overloads and short circuits while tolerating temporary inrush currents.
Can this fuse be used for both AC and DC circuits?
Yes, the A4BQ400 is rated for use in both AC (up to 600 V) and DC (up to 500 V) circuits.
What is the significance of the time-delay feature?
The time-delay feature allows the fuse to withstand temporary overloads such as motor starting currents without blowing, reducing unnecessary downtime.
What type of mounting does this fuse require?
This fuse is designed for bolted mounting with blade terminals, ensuring a secure and reliable connection.
Common Search Terms
Class L fuse, time-delay fuse, 400 amp fuse, Amp-Trap 2000 fuse, blade fuse, bolted mount fuse, industrial fuse, motor protection fuse, transformer fuse, 600VAC fuse, 500VDC fuse
| Manufacturer Part Number | A4BQ400 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 0782001930684 |
| Height | 219.2mm |
| Width | 50.8mm |
| Depth | 50.8mm |
| HS Code | 85361090 |
| Country of Manufacture | Mexico |
| Manufacturer | Mersen |
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