Bussmann BP/TL-20 20 Amp Time Delay Plug Fuse 125V UL 3‑Blister (9)

Description

Product Overview

The Bussmann BP/TL-20 is a 20 Amp Time Delay plug fuse designed for demanding electrical environments where precise protection timing is essential. Constructed from high‑grade copper, the fuse offers excellent conductivity and thermal stability, meeting UL standards for safety and performance. Rated for 125 V, it is suitable for a wide range of residential, commercial, and industrial applications, including lighting circuits, motor loads, and HVAC systems. Each unit is packaged in a 3‑blister pack containing nine individual fuses, providing ample inventory for maintenance crews and reducing downtime during replacements. The through‑hole mounting type ensures a secure, reliable connection within standard fuse holders, while the Edison base plug design simplifies installation and removal. With a compact footprint of 6.5 × 3 × 6.25 inches and a lightweight of 6.7 ounces, the BP/TL‑20 integrates seamlessly into tight panel spaces without compromising performance. The product’s UL listing guarantees compliance with rigorous safety standards, giving electricians and facility managers confidence in its durability and consistent operation over the product’s lifespan.

Usage

Designed for versatility, the BP/TL‑20 excels in environments where time‑delay protection prevents nuisance tripping while safeguarding equipment from overloads. In residential settings, it is commonly used to protect lighting circuits that experience in‑rush currents when large fixtures are switched on, ensuring lights stay on without flickering. Commercial installations benefit from its ability to handle motor start‑up currents in HVAC units, pumps, and compressors, providing a buffer that allows the motor to reach operating speed before the fuse engages. Industrial users appreciate the fuse’s reliability in panel boards that serve heavy machinery, where precise timing can prevent costly equipment damage. The 125 V rating makes it compatible with standard North American power systems, and the 20 Amp rating offers a balance between protection and load capacity for most typical branch circuits. Because the fuse is replaceable and stocked in a 3‑blister pack, maintenance teams can quickly swap out blown units, minimizing service interruptions and keeping critical systems online.

Why Choose Us

Choosing the Bussmann BP/TL‑20 means selecting a product backed by decades of industry expertise and a reputation for quality. Bussmann’s commitment to rigorous testing ensures each fuse meets or exceeds UL specifications, delivering consistent performance even under fluctuating load conditions. The copper core provides superior heat dissipation compared to aluminum alternatives, reducing the risk of premature failure and extending the service life of the fuse. Our packaging in a 3‑blister configuration not only simplifies inventory management but also reduces waste by eliminating the need for individual packaging. Additionally, Bussmann offers responsive technical support and a comprehensive warranty, giving customers peace of mind that any issues will be addressed promptly. The BP/TL‑20’s design incorporates a clear time‑delay characteristic, allowing it to tolerate temporary surges while still protecting downstream equipment from sustained overloads. This balance of reliability, safety, and convenience makes the BP/TL‑20 an optimal choice for electricians, contractors, and facility managers seeking dependable circuit protection.

Key Features

• Reliable copper construction ensures consistent conductivity and long‑term durability.
• UL‑listed 125 V rating provides confidence in safety and regulatory compliance.
• 20 Amp time‑delay characteristic protects against temporary in‑rush currents while safeguarding equipment.
• Compact 3‑blister pack of nine fuses simplifies stocking and reduces replacement downtime.
• Dedicated customer support and warranty give added assurance for professional installations.

FAQ

What does a time‑delay fuse do?

A time‑delay (or slow‑blow) fuse allows short, high‑current surges—such as motor start‑up currents—to pass without opening the circuit. This prevents nuisance trips while still providing protection against sustained overloads that could damage equipment.

Can I use this fuse in a 240 V system?

The BP/TL‑20 is rated for 125 V applications. For 240 V systems, Bussmann offers equivalent models with higher voltage ratings. Always verify the voltage rating of the fuse matches the circuit’s supply voltage to ensure safe operation.

How do I replace a blown fuse?

First, turn off power to the circuit and verify the fuse is indeed blown. Remove the faulty fuse from its holder, then insert a new BP/TL‑20 fuse from the 3‑blister pack, ensuring the Edison base aligns correctly. Restore power and test the circuit to confirm proper operation.

Is the copper material important?

Yes. Copper provides superior electrical conductivity and thermal performance compared to alternative materials. This results in more accurate time‑delay behavior, reduced heat buildup, and a longer service life for the fuse.

What warranty does Bussmann provide?

Bussmann backs the BP/TL‑20 with a standard limited warranty that covers manufacturing defects. For detailed warranty terms and to initiate a claim, contact Bussmann technical support with the product’s serial number and purchase documentation.