Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
MAS54-125A-4P Mild Steel Enclosed 125A Switch Disconnect 4 Pole
£499.90
Why Choose the MAS54-125A-4P Mild Steel Enclosed Switch Disconnector?
The MAS54-125A-4P is a heavy-duty mild steel enclosed switch disconnector designed to provide safe and reliable isolation of low-voltage electrical circuits in industrial, commercial and infrastructure applications. Incorporating a premium ABB 4-pole switch disconnector, this assembly delivers dependable switching performance for demanding three-phase power distribution systems.
The switchgear is housed within a durable powder-coated mild steel enclosure finished in RAL 7035, providing excellent protection against mechanical damage, dust and water ingress. The enclosure includes a removable galvanised backplate, lower gland plate, earthing points and IP20 terminal shrouds, allowing straightforward installation while maintaining a high level of operator safety.
With a rated operational current of 125 A, a 4-pole switched-neutral configuration and suitability for 415–440 V AC systems, the MAS54-125A-4P is ideally suited for machinery isolation, industrial power distribution, commercial buildings, utilities and infrastructure projects requiring dependable electrical isolation.
Key Advantages
- Heavy-duty 125 A mild steel enclosed switch disconnector.
- 4-pole switched-neutral configuration for complete circuit isolation.
- IP66 enclosure suitable for demanding industrial environments.
- Powder-coated mild steel construction provides outstanding mechanical protection.
- Lockable IP65 rotary handle improves maintenance safety.
- Large enclosure offers generous cable termination space.
Key Features
- ABB 4-pole switch disconnector.
- 125 A rated operational current.
- 415–440 V AC rated operation.
- 4-pole switched-neutral configuration.
- Powder-coated mild steel enclosure.
- IP66 enclosure with IP65 pistol-grip rotary handle.
- Handle lockable in the OFF position.
- Clamp connection terminals.
- Removable galvanised mounting plate.
- Lower gland plate and earthing points.
- IP20 terminal shrouds supplied.
Reliable Electrical Isolation
The MAS54-125A-4P provides safe manual isolation of three-phase electrical supplies during maintenance, servicing and emergency shutdown procedures. Its ABB switch disconnector offers dependable switching performance while the robust steel enclosure protects internal equipment from harsh industrial environments.
Designed for industrial plants, commercial facilities and infrastructure projects, the enclosure provides generous internal wiring space together with excellent environmental protection, making installation and future maintenance straightforward.
Typical Applications
- Industrial power distribution.
- Machinery isolation.
- Commercial electrical installations.
- Manufacturing facilities.
- Building services.
- Utilities and infrastructure projects.
Technical Specifications
Tick the specs you need, then view products that match.
| Material | Steel | |
|---|---|---|
| Device Type | Enclosed switch disconnector | |
| Current | 125 A | |
| Phase | Three Phase | |
| IP Rating | IP66 | |
| Poles | 4-pole | |
| Manufacturer | MAS | |
| Switch manufacturer | ABB | |
| Model | MAS54-125A-4P | |
| Alternative SKU | MAS54125A4P | |
| Product type | Mild steel enclosed switch disconnector | |
| Rated current | 125 A | |
| Rated operating voltage | 415–440 V AC | |
| Number of poles | 4 Pole (Switched Neutral) | |
| Frequency | 50 / 60 Hz | |
| Terminal connection | Clamp connection | |
| Protection rating | IP66 | |
| Handle protection | IP65 | |
| Enclosure material | Powder-coated mild steel | |
| Enclosure colour | RAL 7035 | |
| Door lock | 5 mm double-bit lock | |
| Mounting plate | Removable galvanised steel backplate included | |
| Gland plate | Bottom gland plate included | |
| Mounting type | Wall mounting | |
| Dimensions (H × W × D) | 500 × 400 × 210 mm |
Frequently Asked Questions
What is the MAS54-125A-4P used for?
It is designed to safely isolate three-phase electrical circuits during maintenance, servicing and emergency shutdown procedures.
What is the rated current?
The MAS54-125A-4P has a rated operational current of 125 A.
Does this switch isolate the neutral conductor?
Yes. The 4-pole switched-neutral configuration disconnects all three phases together with the neutral conductor.
Is the enclosure suitable for demanding industrial environments?
Yes. The powder-coated mild steel enclosure is rated IP66, providing excellent protection against dust and water ingress.
What type of cable terminals are fitted?
The 125 A version uses clamp connection terminals for secure electrical conductor termination.
Trusted by Electrical Professionals
ABB enclosed switch disconnectors housed in powder-coated mild steel enclosures are trusted by electrical contractors, industrial engineers and panel builders for dependable electrical isolation across demanding commercial and industrial installations.
