Digital guide
You are here:
AEG ALUMINIUM152
Product Introduction:
The AEG ALUMINIUM152 is a compact moulded case circuit breaker housed in a die-cast aluminium alloy enclosure. It is engineered for industrial and commercial power distribution systems requiring reliable overcurrent and short-circuit protection up to 690V AC. The aluminium construction provides superior thermal dissipation and electromagnetic shielding compared to standard thermoplastic-housed breakers.
Detailed content
Technical Specifications:
| Parameter | Value |
|---|---|
| Rated Current (In) | 150 A |
| Pole Configuration | 2-Pole (2P) |
| Rated Voltage (Ue) | 690 V AC / 440 V DC |
| Rated Insulation Voltage (Ui) | 690 V |
| Rated Short-Circuit Breaking Capacity (Icu) | 50 kA at 415 V AC |
| Rated Short-Circuit Making Capacity (Icm) | 105 kA |
| Rated Operational Voltage (Ue) | 690 V AC |
| Frequency | 50/60 Hz |
| Trip Unit Type | Thermal-Magnetic / Electronic (configurable) |
| Standards Compliance | IEC 60947-2, EN 60947-2, UL 489 |
| Degree of Protection | IP20 (front), IP40 (with terminals covered) |
| Ambient Operating Temperature | -25°C to +70°C |
| Mounting Method | DIN rail (35 mm) or bolt-on (bolted connection) |
Material Composition:
- Enclosure: Die-cast aluminium alloy (AL-Si alloy) with anti-corrosion surface treatment
- Terminals: Copper alloy with tin plating
- Internal Arc Chutes: Stainless steel plates
- Contacts: Silver-cadmium oxide (AgCdO) or silver-tin oxide (AgSnO2) composite
- Insulating Components: Glass-fibre reinforced polyester (FRP)
- Trip Mechanism: Spring-loaded mechanical operating mechanism with thermal bimetallic element
Structural Features:
- Compact aluminium die-cast body with high mechanical strength
- Front-accessible terminal connection with screw-clamp or bolt-on terminals
- Rotary handle operation (ON-OFF-TRIP) with padlock provision
- Clear front-mounted status indicator (red/green flag)
- Adjustable thermal and magnetic trip settings via front-panel dials
- Optional auxiliary contacts and shunt trip coils available
Working Principle:
The breaker operates on a combined thermal-magnetic trip mechanism. The thermal element (bimetallic strip) responds to sustained overcurrent conditions by bending and releasing the trip latch after a time delay inversely proportional to the overcurrent magnitude. The magnetic element (solenoid) responds instantaneously to high-level short-circuit currents by generating a magnetic force that directly releases the trip latch. Upon tripping, the contacts separate under spring force, and the arc is drawn into arc chutes where it is split, cooled, and extinguished.
Functional Features:
- Adjustable thermal trip range: 0.7–1.0 × In
- Adjustable magnetic trip setting: 5–10 × In
- Built-in auxiliary contact (1 NO + 1 NC)
- Shunt trip coil compatible (24–480 V AC/DC)
- Under-voltage release compatible
- Motorized operating mechanism available as accessory
Performance Parameters:
| Test | Value |
|---|---|
| Icu (Ultimate Breaking Capacity) | 50 kA at 415 V AC |
| Ics (Service Breaking Capacity) | 35 kA at 415 V AC (100% of Icu) |
| Electrical Endurance | 10,000 operations at rated load |
| Mechanical Endurance | 20,000 operations (no-load) |
| Dielectric Strength | 2.5 kV AC for 1 minute |
Advantages & Highlights:
- Aluminium enclosure provides 30% better heat dissipation than thermoplastic equivalents
- Higher electromagnetic interference (EMI) shielding due to metallic housing
- Compact footprint saves panel space in switchgear assemblies
- Wide range of accessories for customized protection schemes
- Fully compliant with IEC/EN/UL standards for global deployment
Applicable Industries:
- Industrial power distribution
- Commercial building electrical systems
- Oil and gas facilities
- Marine and offshore platforms
- Mining operations
- Data centre power feeders
Installation Requirements:
- Mount on DIN 35 mm rail or use bolt-on mounting with M10/M12 studs
- Torque terminal connections to 35 Nm (copper) / 25 Nm (aluminium)
- Maintain minimum 10 mm clearance above and below for ventilation
- Ensure proper earthing of the aluminium enclosure
Usage Precautions:
- Do not operate the breaker if the handle is damaged or stuck
- Verify rated current setting before energizing the circuit
- Do not bypass the shunt trip or under-voltage release functions
- Perform periodic testing every 2 years per IEC 60947-2
- Do not install in environments with conductive dust or corrosive gases exceeding specified limits
