Sumitomo T-402S — Japan's Most Compact Professional Fusion Splicer
The Sumitomo T-402S is Sumitomo Electric's most compact and lightweight fusion splicer, delivering active clad alignment precision in a rugged 1.2kg package. Made in Japan and engineered for FTTH and FTTx professionals, the T-402S combines rapid splicing speed, exceptional environmental resistance, and intuitive touchscreen operation — making it the ideal choice for technicians who demand reliability in any field condition.
🔑 Key Features
- Active Clad Alignment System — Fast, accurate fiber alignment for consistent low-loss splices
- Ultra-Compact & Lightweight: 1.2kg — Easiest splicer to carry on poles, in manholes, and tight spaces
- Made in Japan — Sumitomo's legendary build quality and reliability
- 4.3" Color LCD Touchscreen — Clear, intuitive interface for fast operation
- Wide Operating Temperature: -15°C to +55°C — Reliable in extreme climates
- 5,000-Arc Electrode Life — Long service intervals, lower maintenance cost
- High Environmental Resistance — Proven field toughness for indoor and outdoor use
- Bilingual: English / Chinese
📐 Technical Specifications
- Model: Sumitomo T-402S
- Alignment: Active Clad Alignment
- Application: FTTx / FTTH
- Origin: Japan
- Display: 4.3" Color LCD | Touchscreen
- Operating Temp: -15°C to +55°C
- Storage Temp: -25°C to +65°C
- Battery: 35.64Wh (ADC-15)
- Electrode Life: 5,000 arc discharges
- Weight: 1.2kg
- Language: English / Chinese
- Packaging: 42×37×35cm carton, 9kg gross
🏗️ Ideal Applications
FTTH last-mile deployment · FTTx access network construction · Aerial and underground fiber splicing · Field maintenance and repair · Telecom contractor and ISP use
💡 Why Choose the Sumitomo T-402S?
When you need Japanese-engineered precision in the most compact package available, the T-402S delivers. Its combination of light weight, wide temperature range, and long electrode life makes it the preferred splicer for technicians working in challenging field environments worldwide.
✅ FAQ
Q1: What alignment technology does the Sumitomo T-402S use?
A: The T-402S uses Active Clad Alignment, which aligns fibers by their cladding profile
for fast, accurate splicing — ideal for standard FTTH fiber types (G.652D).
Q2: How light is the Sumitomo T-402S?
A: At just 1.2kg, the T-402S is one of the lightest professional fusion splicers
available, making it easy to carry and use in confined spaces like manholes, aerial
platforms, and equipment rooms.
Q3: Is the Sumitomo T-402S made in Japan?
A: Yes. The T-402S is manufactured by Sumitomo Electric in Japan, ensuring the
highest standards of build quality and optical performance.
Q4: What temperature range can the T-402S operate in?
A: The T-402S operates reliably from -15°C to +55°C, making it suitable for
cold-climate deployments and hot tropical environments alike.
Q5: How does the Sumitomo T-402S compare to the T-400S?
A: The T-402S is the updated successor to the T-400S, featuring improved compactness,
lighter weight, and enhanced environmental resistance while maintaining the same
trusted Sumitomo splicing performance.
Q6: What is the electrode life of the T-402S?
A: The T-402S electrodes last for 5,000 arc discharges, providing long service
intervals and reducing maintenance costs over the splicer's lifetime.
Q7: Does the T-402S support both English and Chinese?
A: Yes. The T-402S interface supports both English and Chinese language settings.