Product Description:
The AEG A338-03 is a 3-pole miniature circuit breaker designed for final circuit protection in residential, commercial, and light industrial electrical installations. It provides protection against overload and short-circuit currents in three-phase AC distribution systems.

Technical Specifications:

• Rated Current (In): 6A / 10A / 16A / 20A / 25A / 32A / 40A / 50A / 63A (variant-dependent; “03” suffix typically indicates 16A or 20A rated current)
• Rated Voltage (Ue): 400/415V AC (3-phase), 230/240V AC (1-phase to neutral)
• Rated Short-Circuit Breaking Capacity (Icu): 10 kA at 400V AC
• Rated Short-Circuit Making Capacity (Icm): 10 kA
• Trip Curve: Type C (magnetic trip: 5–10× In; thermal trip: 1.13–1.45× In)
• Frequency: 50/60 Hz
• Standards Compliance: IEC 60898-1, EN 60898-1, IEC 60947-2
• Pollution Degree: 2
• Installation Category: III (overvoltage category)

Functional Features:

• Thermal-magnetic trip mechanism with bimetallic strip for overload and solenoid for short-circuit
• Manual ON/OFF toggle switch with visible trip indicator (red flag)
• Quick-connect terminal system with captive screw terminals (cross-section: 1–35mm²)
• DIN 35mm rail mounting (EN 60715 TH35)
• Trip-free mechanism — cannot be held ON during fault condition

Structural Features:

• Width: 54mm (3-pole module)
• Height: 85mm
• Depth: 71mm
• Housing Material: Polyamide 6.6 (PA66) — UL94 V-0 flame retardant, halogen-free
• Terminal Material: Tin-plated copper alloy

Advantages:

• High breaking capacity (10kA) for robust short-circuit protection
• Type C curve suitable for motor circuits and transformer secondary protection
• Compact 3-pole design saves panel space
• Visible trip status indicator

Applicable Industry:

• Residential distribution boards
• Commercial building distribution
• Light industrial motor control centers
• HVAC system power panels