ABB RCCB/ELCB F204 100A 4-Pole 100mA
The ABB F204 100A/0.10/4P is a 4-pole RCCB rated 100A with 100mA sensitivity for main incoming earth fault protection on large three-phase distribution boards in UAE commercial and industrial buildings. Its 100A rating makes it suitable for high-current incoming circuits where three-phase protection is required.
Key Features
- 100A 4-pole RCCB for high-current three-phase incoming protection
- 100mA fire-protection sensitivity (Type AC)
- Provides selective coordination with downstream 30mA devices
- DIN rail mounting
- Genuine ABB F200 series quality
Technical Specifications
| Specification |
Details |
| Brand |
ABB |
| Model |
F204 AC-100/0.1 |
| Article Number |
2CSF204005R2900 |
| Rated Current |
100A |
| Poles |
4 |
| Sensitivity |
100mA |
| Type |
AC |
| Voltage |
415V AC |
| Mounting |
DIN Rail |
Applications
- Main incoming protection on large 3-phase commercial DBs
- Industrial distribution board earth fault protection
- Selective protection schemes with 30mA downstream ELCBs
- Large commercial building three-phase incoming protection
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 this one 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?
A 4-pole (4P) RCCB switches all three phases plus 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. This RCCB is typically installed upstream of the MCBs it protects, on the same 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.
