EDUT
Main function
from Break the overload and short-circuit current generated by the current feedback, to protect solar photovoltaic device.
Application
Suitable for photovoltaic systems below 1500VDC.
Model and significance
| S | RD | 50 | H |
| Enterprise code | DC fuse isolating switch Design Number |
Case grade rated current | High voltage |
Advantages and certification
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| Ventilation slot | Red copper terminal block | lnternational Certification |
| with strong heat dissipation performance | thickness up to 1.0mm | CE、TUV |
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| PA6 flame retardant material | Indicate window design | |
| Flame retardant rating of V-O | whether the fuse core is fused model (light on means be fused, other means normal state) |
Specifications
| Model | CH-50H SRD-50H DC fuse isolating switch |
| Reference Standard | lEC/EN60947-1IEC/EN 60947-3 |
| Rated insulation voltage | 1600V |
| Rated operational voltage | DC1500V |
| Rated operational current | 2/3/4/5/6/8/10/12/15 16/20/25/30/32/35/40/45/50A |
| Rated ultimate short circuit breaking capacity |
8kV |
| Rated accepted power dissipation |
≤12W |
| Pole | 1P |
| Rated limit short-circuit current | 50kA |
| Products size | 10mm×85mm 14mm×85mm |
| Protection level | lP20 |
| Use category | PV-0 |
SRD-35/50 Derating factor
| Pole | Cabinet temperature (reference volume) |
Derating factor |
| 1~4 | 20 | 1 |
| 1~4 | 30 | 0.96 |
| 1~4 | 40 | 0.93 |
| 1~4 | 50 | 0.9 |
| 1~4 | 60 | 0.85 |
| 1~4 | 65 | 0.8 |
| 1~4 | 70 | 0.75 |
| 1~4 | 75 | 0.7 |
| 5~24 | 20 | 0.96 |
| 5~24 | 30 | 0.9 |
| 5~24 | 40 | 0.85 |
| 5~24 | 50 | 0.75 |
| 5~24 | 60 | 0.6 |
| 5~24 | 65 | 0.5 |
| 5~24 | 70 | 0.45 |
| 5~24 | 75 | 0.4 |
| >5P is the data measured when 24P is powered on at the same time | ||
lnstallation and wiring Unit: mm
The normal range of ambient air humidity is not higher than +40°℃, not lower than -25℃, and the relative humidity is not higher than 95%
The altitude of the installation site does not exceed 2000 meters
Pollution level 3
In a non-explosive medium, and there is no gas and dust (including conductive dust) that can corrode metals and damage insulation in the medium
DC fuse link SRF35H/SRF- 50H
Model and significance
| S | RF | □ | H |
| Enterprise code | DC fuse isolating switch Design Number |
Case grade rated current | High voltage |
Installation diagram
Dimensions Unit: mm
Specifications
| Model | SRF-35H | SRF-50H |
| Rated voltage | 1500VDC | 1500VDC |
| Rated working current | 1/2/3/4/5/6/8/10/12/ 15/2o/25/730/32/35A |
15/20/25/30/32 35/40/45/50A |
| Rated accepted power dissipation |
6W | 12W |
| Size | 10mm×85mm | 14mm×85mm |
| Rated ultimate short circuit breaking capacity |
20kA | 20kA |
| Reference Standard | EN 60269-1 EN 60269-6 |
EN 60269-1 EN 60269-6 |
| Protection level | IP20 | lP20 |
| Use category | PV-0 | PV-0 |
Photovoltaic fuse link curve
TIME CURRENT CURVE
SRF-35H(10×85)
IME CURRENTCURVE
SRF-50H(1485)
