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A9F44320 SCHHEIDER Controller module
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Product Description
The A9F44320 is a 3-pole (3P), 20A miniature circuit breaker (MCB) from Schneider Electric’s Acti9 iC60N (Disbo iC60) range. Utilizing thermal-magnetic trip technology with a Type C tripping curve, it provides dual overload and short-circuit protection for 3-phase AC distribution networks. It features Schneider’s VisiSafe (guaranteed safe downstream isolation) and VisiTrip (fast visual fault identification) systems.
Product Parameters
| Specification | Details |
| Manufacturer | Schneider Electric |
| Product Series / Range | Acti9 iC60N Disbo |
| Part Number (SKU) | A9F44320 |
| Number of Poles | 3P (3 protected poles) |
| Rated Current (I_n) | 20 A at 50 °C |
| Tripping Curve | C curve (magnetic trip limit 8 x I_n \pm 20\%) |
| Network Type | AC / DC |
| Rated Operational Voltage (U_e) | 380–415 V AC 50/60 Hz (also supports 12–133 V AC, 220–240 V AC, 440 V AC, 100–133 V DC) |
| Rated Breaking Capacity (I_{cu} / I_{cn}) | • 10 kA at 380–415 V AC (conforming to EN/IEC 60947-2)
• 6000 A at 415 V AC (conforming to EN/IEC 60898-1) |
| Rated Insulation Voltage (U_i) | 500 V AC 50/60 Hz |
| Impulse Withstand Voltage (U_{imp}) | 6 kV |
| Mechanical / Electrical Durability | 20,000 cycles (Mechanical) / 10,000 cycles (Electrical) |
| Protection Rating | IP20 (IP40 inside a modular enclosure) |
| Dimensions (W x H x D) | 54 mm (6 x 9mm pitches) x 85 mm x 78.5 mm |
| Terminal Capacity | Tunnel terminals: 1–25 mm² (Rigid), 1–16 mm² (Flexible) |
| Tightening Torque | 2.0 N·m |
Product Advantages
- VisiSafe Isolation: Green visual status band guarantees physical contact separation to ensure safe downstream maintenance according to IEC/EN 60947-2 standards.
- VisiTrip Fault Indication: Red mechanical indicator on the front panel pinpoints the tripped circuit immediately, minimizing maintenance downtime.
- Energy Limitation Class 3: Limits peak pass-through fault energy during short circuits to protect downstream cables and components from electrodynamic and thermal stress.
- Modular Compatibility: Compatible with add-on Vigi residual current blocks (RCDs), remote monitoring, padlock attachments, and auxiliary contact modules.
- Fast DIN-Rail Mounting: Standard snap-on clip-on mechanism simplifies panel installation and assembly.
Important Considerations and Precautions
- C-Curve Trip Profile: Optimized for moderate inrush current loads (lighting, heating, small 3-phase machinery). For heavy industrial motors with extreme startup surges, a D-curve breaker is recommended.
- Screw Torque Specs: Torque terminal connections to 2.0 N·m to ensure proper electrical contact and prevent loose-wire thermal hot spots.
- Enclosure Requirements: The breaker carries an IP20 rating. Must be installed inside an appropriately rated distribution board or cabinet (IP54 or better) when used in outdoor, wet, or dusty environments.
- No Earth Leakage Protection: Protects against overloads and short circuits only. Residual current protection requires an add-on Vigi module or separate RCD.
Product Applications
- Commercial Kitchen & HVAC Equipment: Protecting 3-phase commercial ovens, dishwashers, heating banks, and ventilation fans.
- Industrial Motors & Pumps: 3-phase sub-circuit protection for small-to-medium induction pumps, compressors, and conveyors.
- Control Panels & OEM Equipment: Serving as a 20A 3-phase branch circuit breaker inside industrial machinery control enclosures.
- Commercial Building Distribution: Protecting 3-phase sub-feed distribution boards in office buildings, retail spaces, and institutional facilities.
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
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