
S5 Fusion Splicer
A fiber fusion splicer is used to join two optical fibers. It works by generating an electric arc that melts the fiber ends, creating a low-loss, high-strength permanent connection that ensures efficient signal transmission.
Highlights

- Six-motor fiber core alignment system achieves loss as low as 0.01dB with a fusion time of just 6 seconds (fast mode), meeting stringent backbone network requirements.
- 7-second fast fusion and 18-second heating significantly reduce project timelines.
- Rubber protective cover and high-strength chassis ensure resistance to drops, dust, and rain and rain resistance, making it suitable for outdoor and harsh environments.
- 5200mAh high-capacity lithium battery supports 240 operations; compact body facilitates portability, meeting fieldwork demands.
- Built-in storage for 2000 fusion records, 41 preset fusion modes, and support for system self-diagnosis and data management.
- The splicer comes with built-in Chinese and English interfaces and supports additional languages.
- It comes with a complete set of standard accessories, allowing you to start using it right out of the box.



Specifications
| Model | S5 |
| Average Fusion Loss | SM: 0.02dB / MM: 0.01dB / DS: 0.04dB / NZDS: 0.04dB / G657: 0.02dB |
| Return Loss | >60dB |
| Splicing Time | Standard 7 seconds (SM), FAST mode 6 seconds |
| Fits Fiber | SM/MM/NZDS/G657 fibers and 0.2-3.0mm fibers, flat indoor cables |
| Motors | 6 |
| Heater Heat Shrink Tubing Support | 40mm/60mm/SOC-3.0/SOC-0.9 |
| Battery Capacity & Runtime | 5200mAh lithium battery, typically supports 240 welds + heating cycles |
| Display and Observation | 5.0 inch touchscreen, dual cameras, 500x magnification (X/Y/X-Y modes) |
| Power Input | AC 100-240V or DC 9-14V |
Standard accessories: the fusion splicer, fiber cleaver, fiber stripper, leather wire stripper, kevlar scissors, 2 packs of heat shrink tubing, alcohol pot, power adaptor, power cord, cooling rack, electrode rod, large-capacity battery, shoulder strap, operating instructions, carrying case.
Use Cases
- 80 km trunk line, FTTH
- Urban Line Maintenance
- Security Surveillance
- Residential Area Line Installation and Repair


Product Demo
Real Experiences with TFN Fusion Splicers
“I’m really impressed with the TFN fusion splicer. The operation is extremely simple and intuitive, even for new technicians. We’ve been using it on many fiber projects, and it delivers consistent, low-loss connections every time.”
John M.
“We had some technical questions during setup, and their team responded immediately with clear guidance. The after-sales support is professional and reliable. They cares about their customers, not just the sale.”
Mr. Chen
“The build quality of the fusion splicer is outstanding. I’ve used other brands before, but TFN’s splicer stands out for its precision and complete toolkit. It’s helped our team finish fiber installations faster and with fewer issues.”
Carlos R.
FAQs
Is there a minimum order quantity for your product?
To ensure production efficiency and provide the most competitive pricing for our customers, we typically have a minimum order quantity for our standard products.
For most communication test instruments, the minimum order quantity is 1 unit.
For supporting tools and accessories, higher minimum order quantities may apply.
If you have special requirements, please contact our sales team directly to discuss.
What is the lead time?
Delivery time depends on the complexity of the product and the current order status.
Standard models are usually in stock and can be shipped within 3-7 business days after receiving payment.
Custom/high-configuration models may require 2-6 weeks for production and testing.
The exact delivery time will be confirmed in writing by your sales manager after you place your order.
What is the product warranty period?
We are confident in the quality and reliability of our products.
We offer a standard 36-month warranty on all instruments, starting from the date of arrival at the port of destination.
Extended warranties are also available; please contact our sales team for details.