1 / 7DC Fuse Holder
RT18-63X 3P DIN Rail Fuse Holder 63A 690V
Large industrial motors, air compressors, pump stations, and heavy three-phase machinery draw sustained currents that exceed the capacity of 32A fuse holders. The Soltree RT18-63X 3P is rated at 63A per phase and accepts 14x51mm cylindrical fuse links — the correct fuse format for high-breaking-capacity elements that can safely interrupt the large fault currents generated by big inductive loads. Three independent fuse positions, each with its own red LED indicator, allow maintenance engineers to identify a faulted phase instantly and replace only the blown fuse, minimizing downtime on production equipment. The compact 35mm DIN rail design fits standard motor control center (MCC) panels and industrial distribution boards without requiring a dedicated enclosure. Flame-retardant PVC housing and screw-terminal wiring rated for up to 16mm² cables handle the wiring demands of high-current three-phase circuits. Note: fuse links are sold separately.
Key Features
- Three-pole design — independent high-current protection per phase
- Rated 63A / 500V–690V AC — designed for large motors, compressors, and heavy machinery
- Compatible with standard 14x51mm cylindrical fuse links
- Individual red LED indicator per phase — fast phase-fault identification
- Flame-retardant PVC housing — safe under high-current fault conditions
- High-conductivity copper contacts — stable performance under heavy three-phase loads
- Tool-free 35mm DIN rail clip mounting
- Screw-terminal wiring for up to 16mm² cables
- IP20 finger-safe design
- Compliant with IEC 60269 and GB 13539
- CE & RoHS certified
- Fuse links sold separately
Samples available · OEM pricing on request · Ships worldwide
Technical Specifications
| Product Type | Three-Phase High-Current Fuse Holder |
| Model Number | RT18-63X |
| Pole Configuration | 3P (Three Pole) |
| Rated Current | 63A |
| Rated Voltage | 500V–690V AC |
| Compatible Fuse Size | 14x51mm |
| Mounting Type | 35mm DIN Rail |
| Housing Material | Flame-retardant PVC (V0 Grade) |
| Contact Material | High-Purity Copper |
| Indicator Type | LED Fault Indicator (Red, per phase) |
| Operating Temperature | -25°C to +70°C |
| Protection Rating | IP20 (Finger-Safe) |
| Standards Compliance | IEC 60269, GB 13539 |
| Application | Large Industrial Motors, Compressors, Heavy Three-Phase Machinery |
| Installation | Tool-Free DIN Rail Clip |
| Dimensions (Total Width) | Approx. 54mm (3 modules x 18mm) |
| Weight | Approx. 240g |
| Certification | CE, RoHS |
| Fuse Inclusion | Fuse links NOT included — sold separately |
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