Description
The Mersen A4BY3500 is a Class L, low voltage current-limiting fuse engineered for high-amperage industrial protection. It features a robust 3500 Amp rating at 600VAC/300VDC with a high interrupting rating of 200kA at 600VAC. The primary application for this bolt-on fuse is the protection of service entrance equipment, main feeders, and large circuit breakers in commercial and industrial power distribution systems.
Technical Specifications
| Condition |
|
| Brand |
Eaton |
| Category |
Circuit Breakers |
| Part Number |
QBHGF1030 |
| Subcategory |
Molded Case Circuit Breakers (MCCB)
|
| Amperage Rating |
30 A |
| Voltage Rating |
120VAC |
| Poles |
1 |
| Phase |
1 |
| Interrupting Rating |
22kAIC @ 120V |
| Circuit Breaker Type |
GFCI (Ground Fault Circuit Interrupter)
|
| Protection Type |
|
| Trip Functions |
Long Time and Instantaneous
|
| Frame Type |
BAB |
| Connection Type |
Bolt-On |
| Terminal Connection |
Load Side Lug |
| Wire Gauge Compatibility |
14 to 8 AWG |
| Standards |
|
| Temperature Rating |
40°C |
| Weight |
1.0 lbs |
Information About A4BY3500
The A4BY3500 is a foundational component of Mersen’s Amp-Trap® A4BY series, renowned for its superior protection capabilities in heavy-duty applications.2 Its build utilizes a glass-melamine laminate body, ensuring high mechanical and dielectric strength under fault conditions. The fuse is compatible with standard Class L bolt-on mountings, making it a reliable solution for installation in load centers, switchboards, and panelboards. Utilizing a time-delay characteristic with a 4-second minimum delay at 500% rating, this technology allows the fuse to safely pass temporary current surges without nuisance tripping, ensuring excellent coordination with ground fault relays.
Key Features:
- High Current Rating: Supports continuous operation up to 3500 A for heavy-duty power circuits.
- Voltage Rating: Operates at 600 VAC and 300 VDC for broad application flexibility.
- Interrupting Capacity: Rated 200 kA AC and 100 kA DC for exceptional short-circuit protection.
- Time-Delay Design: 4-second minimum delay at 500% load prevents nuisance fuse openings.
- Robust Construction: Glass-melamine laminate body ensures superior heat resistance and durability.
- Terminal Type: Bolt-on silver-plated copper blades provide reliable electrical contact.
- Standards Compliance: UL, CSA, and CE approved for safety and global compatibility.
- Application Range: Suitable for mains, feeders, switchboards, and large distribution panels.
The A4BY3500 delivers the reliability and precision required for demanding industrial and commercial power protection systems.
