Hager CE485Z RCCB 100A 4-Pole 100mA Type AC
The Hager CE485Z is a 100A, 4-pole residual current circuit breaker (RCCB/ELCB) with 100mA sensitivity, built to protect large residential, commercial, and industrial installations from earth leakage faults. Type AC sensing detects standard sinusoidal residual currents, disconnecting the circuit to reduce the risk of fire and equipment damage. Made in France, the CE485Z carries Hager's full European build and design standard for demanding distribution boards.
Key Features
- 100A rated current, 4-pole (4P) — switches all phases plus neutral
- 100mA tripping sensitivity — sized for fire/equipment protection on larger circuits, not personnel protection
- Type AC residual current sensing for standard sinusoidal leakage currents
- 1.5kA breaking capacity; 6kA rated conditional short-circuit current (per EN 61008-1)
- Compact 4-module DIN rail mounting, IP20 enclosure
- Rated for 2000 electrical / 4000 mechanical operations
- Screw terminal connections
- Complies with IEC 61008-1
Technical Specifications
| Specification |
Details |
| Brand |
Hager |
| Model |
CE485Z |
| Device Type |
RCCB / ELCB (Residual Current Circuit Breaker) |
| Rated Current (In) |
100 A |
| Rated Residual Operating Current (IΔn) |
100 mA |
| Type |
AC |
| Poles |
4P (Four Pole) |
| Frequency |
50 Hz |
| Breaking Capacity |
1.5 kA |
| Rated Conditional Short-Circuit Current |
6 kA (per EN 61008-1) |
| Mounting Width |
4 modules (DIN rail) |
| IP Rating |
IP20 |
| Electrical Endurance |
2000 cycles |
| Mechanical Endurance |
4000 cycles |
| Connection Type |
Screw terminal |
| Operating Temperature |
-25°C to +40°C |
| Standard |
IEC 61008-1 |
Applications
- Industrial distribution boards and switchgear
- Commercial facilities: offices, malls, schools, hospitals
- Large residential complexes and villas
- Projects requiring 100A 4-Pole protection at 100mA sensitivity
FAQ
-
What's the difference between an MCB and an RCCB/RCD?
An MCB protects circuits and wiring against overload and short-circuit current. An RCCB like the CE485Z protects against earth leakage by monitoring current imbalance and disconnecting the circuit — the two are complementary and are normally installed together in a distribution board.
-
What does the 100mA sensitivity rating mean?
100mA RCCBs are sized for fire and equipment protection on larger circuits and sub-mains, not personal shock protection — that requires a 30mA device. A 100mA unit is a common choice as a main incomer or sub-distribution protection device upstream of 30mA final-circuit RCDs.
-
How many poles do I need — why 4-pole?
A 4-pole (4P) RCCB switches all three phases plus the neutral together. Use 4P for three-phase supplies or distribution boards where the neutral must also be isolated; 2-pole devices are used for single-phase circuits.
-
Can this be used alongside MCBs in the same board?
Yes. The CE485Z is typically installed upstream of the MCBs it protects, on the same Hager DIN rail, so a leakage fault trips the RCCB while overloads/short circuits are still cleared by the individual MCBs.
-
Can I install this myself?
No. RCCBs are wired into a live distribution board and must be installed by a licensed electrician in line with UAE wiring regulations.
