Hager HHA100Z 3-Pole 100A MCCB
The Hager HHA100Z is a 3-pole, 100A moulded case circuit breaker (MCCB) with a fixed thermal-magnetic trip unit, built for sub-main feeder and incoming circuit protection in UAE commercial and industrial distribution boards. It handles higher fault currents than a standard MCB, making it the right choice for main and sub-main protection on three-phase supplies.
Key Features
- 3-pole, 100A rated current for three-phase incoming/feeder protection
- Fixed thermal-magnetic (TM F/F) trip unit, fixed front DIN-rail mounting
- Breaking capacity: Icu 25kA @ 400V AC / 35kA @ 240V AC (IEC 60947-2)
- Service breaking capacity: Ics 25kA @ 230V AC / 20kA @ 400V AC
- Rated operational voltage (Ue): 220–415V AC, 50–60Hz
- IP4X protection, compact frame (130 × 75 × 68mm)
- Rated for 20,000 mechanical and 10,000 electrical operations
- Genuine Hager, Made in France, compliant with IEC 60947-2
Technical Specifications
| Specification |
Details |
| Model |
HHA100Z |
| Device Type |
MCCB (Moulded Case Circuit Breaker) |
| Rated Current (In) |
100 A |
| Poles |
3 |
| Rated Operational Voltage (Ue) |
220–415 V AC |
| Insulation Voltage (Ui) |
690 V |
| Frequency |
50–60 Hz |
| Breaking Capacity (Icu) |
25 kA @ 400V AC / 35 kA @ 240V AC / 4 kA @ 690V AC |
| Service Breaking Capacity (Ics) |
25 kA @ 230V AC / 20 kA @ 400V AC |
| Trip Unit |
TM F/F (thermal-magnetic, fixed settings) |
| IP Rating |
IP4X |
| Mounting |
Fixed, front-mounted, DIN rail |
| Terminal Capacity |
4–95 mm² rigid / 4–70 mm² flexible |
| Endurance |
20,000 mechanical / 10,000 electrical operations |
| Standards |
IEC 60947-2 |
Applications
- Three-phase sub-main feeder protection
- Commercial and industrial DB incoming protection
- High-current circuit MCCB protection
- Building services main distribution protection
FAQ
-
What's the difference between an MCB and an MCCB?
An MCB (miniature circuit breaker) is typically rated up to 100A with a fixed, non-adjustable trip and lower breaking capacity, used for final circuits. An MCCB (moulded case circuit breaker) like the HHA100Z is built for higher currents and fault levels — up to 25kA breaking capacity here — and is used for main incomers, sub-mains, and feeder protection where an MCB's rating or breaking capacity would be insufficient.
-
When do I need an MCCB instead of an MCB?
Use an MCCB where the prospective fault current or load current exceeds what an MCB is rated to handle safely — typically at the main incomer or major sub-main level of a commercial or industrial distribution board, rather than on individual final circuits.
-
How many poles do I need?
The HHA100Z is a 3-pole device for three-phase circuits without a switched neutral, suited to three-phase feeders and main incomers on a 3-wire supply.
-
Can I install this myself?
No. MCCBs are installed in distribution boards and panels by a licensed electrician, in line with UAE wiring regulations.
