Hager CF485Z RCCB 100A 4-Pole 300mA Type AC – ELCB, Made in France
The Hager CF485Z is a high-capacity 4-pole residual current circuit breaker (RCCB/ELCB) rated 100A with 300mA Type AC sensitivity, built for earth-leakage protection on heavy-duty distribution boards in residential, commercial and industrial installations across the UAE. Manufactured in France to EN 61008-1, it combines fast leakage tripping with a long service life in standard DIN-rail switchboards.
Key Features
- Rated current 100A across 4 poles (4P), suited to three-phase-plus-neutral distribution circuits
- Rated residual operating current (sensitivity): 300mA, Type AC — for fire and equipment protection on incoming supply/sub-main circuits
- Rated conditional short-circuit current (Inc) 6kA to EN 61008-1; breaking and opening capacity 1.5kA
- Compact DIN-rail mounting, 4 modules wide (70 x 86 x 70mm), screw terminals
- IP20 protection rating; rated frequency 50Hz
- Low power loss: 30.2W total at rated current (11.9W per pole)
- Mechanical endurance 4000 operations, electrical endurance 2000 cycles
- Rated operating temperature -25°C to 40°C, derated at higher ambient temperatures
Technical Specifications
| Specification |
Details |
| Brand |
Hager |
| Model |
CF485Z |
| Device Type |
RCCB / ELCB |
| Rated Current |
100A |
| Poles |
4P |
| Sensitivity |
300mA, Type AC |
| Rated Frequency |
50Hz |
| Breaking/Opening Capacity |
1.5kA |
| Rated Conditional Short-Circuit Current (Inc) |
6kA (EN 61008-1) |
| Withstand Non-Tripping Surge |
0.25kA |
| Power Loss |
30.2W total / 11.9W per pole at rated current |
| Mounting / Width |
DIN rail, 4 modules (70mm) |
| Dimensions (W x H x D) |
70 x 86 x 70mm |
| Terminal Type |
Screw terminals |
| Protection Rating |
IP20 |
| Mechanical / Electrical Endurance |
4000 operations / 2000 cycles |
| Operating Temperature |
-25°C to 40°C (derated to 59A at 70°C) |
| Max. Altitude / Pollution Degree |
2000m / Degree 2 |
| Standard |
EN 61008-1 |
Applications
- Industrial distribution panels and switchgear
- Commercial buildings: malls, offices, hospitals, schools
- Large residential complexes and villas
- Projects requiring high-capacity, heavy-duty leakage protection
FAQ
-
What's the difference between an MCB and an RCCB/ELCB?
An MCB protects against overload and short-circuit faults. An RCCB/ELCB like the CF485Z monitors earth leakage current and trips on imbalance, protecting against electric shock and earth faults an MCB cannot detect. The two are complementary and commonly installed together in a distribution board.
-
What does the 300mA sensitivity rating mean — will it protect against electric shock?
The CF485Z trips at a 300mA earth-leakage imbalance. This is a fire/equipment-protection sensitivity — typically used as main incoming or sub-main protection on larger boards — rather than the 30mA rating required for direct personnel shock protection on final circuits, which should use separate 30mA RCCBs/RCBOs downstream.
-
How many poles do I need — what does 4-pole (4P) mean for this circuit?
4-pole means the device switches all four conductors of a three-phase-plus-neutral supply. Use a 4-pole RCCB on three-phase boards or where neutral isolation is required; single-phase circuits typically use a 2-pole device instead.
-
Can I install this myself?
No. The CF485Z is a distribution board/panel component rated up to 100A and must be installed and commissioned by a licensed electrician in accordance with UAE wiring regulations.
-
What size board or application is the 100A CF485Z suited for?
Its 100A rating and 6kA short-circuit rating make it suitable for main incoming protection on larger residential complexes, commercial buildings and light-industrial distribution boards where high-capacity earth-leakage protection is required.
