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Bussmann TL-25 Type TL Time-Delay Plug Fuse, 25A, 125V, 10kAIC
The Bussmann TL-25 is part of the Eaton Bussmann series Type TL plug fuse lineup, engineered to deliver dependable overcurrent protection for residential and light commercial electrical panels that use threaded plug fuse holders. This time-delay plug fuse is rated 25 A at 125 Vac, carries a 10 kAIC (RMS Symmetrical) interrupt rating, and is backed by a 10 kA short circuit rating for dependable performance when interrupting fault current. Constructed with a threaded mount, a plastic body, and brass components, the TL-25 is built to provide durable, code-compliant fuse panel service for electricians, contractors, and facility maintenance teams working on legacy and current plug fuse installations.
Key Features
- Amperage Rating: Rated 25 A, sized for branch circuits that require this specific overcurrent protection level in compatible plug fuse panels.
- Voltage Rating: Rated 125 Vac, matching the standard voltage found in most residential and light commercial electrical panels.
- Time-Delay Design: The time-delay characteristic allows brief overload conditions, such as motor inrush or starting current, to pass through without nuisance blowing, while the fuse still opens reliably during sustained overcurrent events.
- Interrupt Rating: Carries a 10 kAIC (RMS Symmetrical) interrupt rating, giving the fuse the capacity to safely interrupt higher levels of fault current.
- Short Circuit Rating: Backed by a 10 kA short circuit rating, supporting use in panels where elevated available fault current must be accounted for.
- Threaded Mount: Features a threaded base for secure, direct installation into compatible Type TL threaded plug fuse panels without additional adapters.
- Durable Construction: Combines a plastic body with brass construction to maintain consistent electrical contact and withstand everyday panel service conditions.
Technical Specifications
- Refer to manufacturer documentation for complete technical specifications.
Typical Applications
- Residential and Light Commercial Fuse Panels
- Branch Circuit Overcurrent Protection
- Replacement Fuse for Type TL Plug Fuse Panels
- Electrical Panelboards Using Threaded Plug Fuses
Why Bussmann?
Bussmann, part of the Eaton Bussmann series, has long been relied upon by electrical professionals for circuit protection products built to perform. The TL-25 pairs a durable plastic body and brass construction with a 10 kAIC (RMS Symmetrical) interrupt rating and a 10 kA short circuit rating, giving contractors and facility teams a dependable, code-compliant option for maintaining and repairing threaded plug fuse panels.
Manufacturer Resources
Product Specs
- list_batch:
- BUSS-20260919
- Product Type:
- Plug Fuse
- Series:
- TL
- Amperage Rating:
- 25A
- Voltage Rating:
- 125V
- Configuration:
- Time Delay
- Connection Type:
- Threaded
- Department:
- Electrical
- Product Subgroup:
- Fuses
- Product Material:
- Plastic
- Pack size (unit):
- 100
- Product Group:
- Circuit Protection
- Product Weight:
- 0.044 lb
- Product Width:
- 1.25 in
- Product Length:
- 1.25 in
- Product Height:
- 1.25 in
Bussmann TL-25 – Frequently Asked Questions
1) Will a Bussmann TL-25 plug fuse screw into my existing fuse panel?
The TL-25 has a threaded base that screws directly into standard Edison-base plug fuse holders, no adapter needed. It is rated 25A at 125Vac. One caution: if your panel uses Type S rejection-base holders (the kind with a Fustat/SL adapter already installed), a Type TL fuse will not thread in. Pull the old fuse and look at the base before ordering.
2) Can I put a 25A plug fuse on a 15A or 20A branch circuit?
No. The TL-25 is a 25A device and must match the ampacity of the wire it protects. Putting it on 14 AWG (15A) or 12 AWG (20A) branch wiring over-fuses the circuit and defeats the protection. Use a 15A or 20A Type TL fuse for those circuits and keep the 25A for conductors actually rated for 25A.
3) Can I use a 125V plug fuse on a 240V circuit like a water heater or dryer?
No. The TL-25 is rated 125Vac only, so it belongs on line-to-neutral branch circuits in a 120/240V system. Two-pole 240V loads need cartridge fuses in a pullout block, not plug fuses.
4) What is the difference between a time-delay plug fuse and a standard one-time plug fuse?
Time delay is the whole point of the TL series. The TL-25 tolerates a brief inrush spike, a motor, compressor or similar starting load, without opening, but still clears on a sustained overload. A fast-acting (non-time-delay) plug fuse on the same circuit will nuisance-blow every time the motor starts. For a purely resistive circuit, lighting and receptacles only, either type works; for anything with a motor, use the time-delay.
5) Is a 10 kAIC interrupt rating enough for a residential fuse panel?
The TL-25 carries a 10 kAIC (RMS symmetrical) interrupting rating with a 10 kA short circuit rating, which covers the available fault current in typical residential and light commercial plug fuse panels. If your fault current study shows more than 10 kA available at that panel, this fuse is not the right device for that location.
6) How many fuses come in a Bussmann TL-25 order?
The TL-25 is packed 100 fuses to the pack, which is the maintenance quantity, not a single fuse. That suits an MRO crib or a property manager stocking multi-family buildings still on fuse panels; a one-off repair does not need this quantity.
7) What is the TL-25 made of and how does it hold up in panel service?
Plastic body with brass current-carrying components and a threaded brass shell. The brass keeps contact resistance consistent in the fuse holder over repeated changes, which is what matters on a panel being serviced regularly.
How fast can I get the Bussmann TL-25 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Bussmann TL-25 come with a warranty?
Absolutely. The Bussmann TL-25 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Bussmann TL-25?
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