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RT18-63 Fuse Link — 63A, AC500/690V (Ø14×51mm)
Industrial AC fuse rated 10–63A, voltage up to 690V
High breaking capacity 100kA (AC), 50kA in selected ranges
Standard Ø14×51mm size, compatible with RT18-63 fuse holders
Overview
The RT18-63 AC fuse is a protection device for industrial distribution and
control systems. This ac fuse supports a current range from 10A up to 63A, with voltage
ratings of AC500/690 V and DC250 V. Designed in Ø14×51 mm cartridge size, it fits RT18-63 fuse holders
for reliable installation.
Key Features
- AC fuse rated for circuits up to 690 V.
- Wide current range: 10–63 A.
- Breaking capacity: 100 kA (AC), 50 kA for high current ranges.
- Ø14×51 mm ceramic body with silver element and quartz sand arc quenching.
- Complies with IEC 60269 and GB13539 standards.
Specifications
| Rated current (In) | 10, 16, 20, 25, 32, 35, 40, 50, 63 A |
|---|---|
| Rated voltage | AC500/690 V; DC250 V |
| Breaking capacity | 100 kA (AC); 50 kA for high current |
| Size | Ø14 × 51 mm |
| Packing | 3 / 90 |
| Compatible holder | RT18-63 fuse holder |
Dimensions & Curves
Applications
- Industrial distribution cabinets
- Motor control centers
- Auxiliary circuits in PV and ESS systems
- General AC protection
See also: PV Combiner Box ·
DC Switch Disconnector ·
Contact Us
FAQ
What is the current range of the RT18-63?
The RT18-63 AC fuse supports 10–63 A, covering a wide set of applications.
Is it only for AC use?
While designed as an ac fuse, it also supports DC circuits up to 250 V.
Which holder is compatible?
The RT18-63 fits into the RT18-63 fuse holder, available for panel or DIN rail mounting.
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