ABB SHD204 63A 4-Pole Modular Isolator
The ABB SHD204 is a 4-pole 63A modular isolator for three-phase plus neutral incoming isolation in UAE residential and commercial distribution boards. It provides safe, compact DIN rail main switching for four-wire systems, making it a standard choice for three-phase consumer unit and DB incoming isolation.
Key Features
- 63A 4-pole modular isolator for 3-phase + N systems
- DIN rail mounting for compact DB installation
- Clear ON/OFF switching indication
- Suitable as main incoming switch in 4-wire distribution boards
- Genuine ABB quality
Technical Specifications
| Specification |
Details |
| Brand |
ABB |
| Model |
SHD204 |
| Article Number |
2CDD274111R0063 |
| Rated Current |
63A |
| Poles |
4 |
| Type |
Modular Isolator |
| Voltage |
415V AC |
| Mounting |
DIN Rail |
Applications
- Main incoming switch in 4-pole distribution boards
- Three-phase + neutral isolation in commercial DBs
- Consumer unit main switches
- Residential and commercial building electrical installations
FAQ
-
Is this an MCB or an isolator?
It's an isolator (switch-disconnector), not an MCB. It has no overload or short-circuit protection — it only provides a manual on/off disconnect, and should be paired with separate MCBs or RCCBs for circuit protection.
-
What does 4-pole mean for this isolator?
4-pole means it switches all three phases plus neutral, for supplies where the neutral must also be isolated.
-
Where should this isolator be installed?
Typically as the main incoming switch or a local isolation point ahead of the MCBs/RCCBs in a distribution board, so the whole board (or a section of it) can be isolated for maintenance without needing to trip individual breakers.
-
Can I install this myself?
No. This is trade-only distribution board equipment and must be installed and connected by a licensed electrician in accordance with local wiring regulations.
-
Can this isolator be used to switch a live circuit under load?
Isolators rated for on-load switching can do this within their utilisation category, but check the specific AC rating in the Technical Specifications table — an isolator is not a protective device and should not substitute for a circuit breaker.
