The Siemens 3VA2040-4HL42-0AA0 is a SENTRON 3VA2 series Molded Case Circuit Breaker (MCCB) designed for advanced protection of low-voltage electrical distribution systems. This 4-pole MCCB features a Microprocessor-Based Trip Unit (ETU320 LI) that provides precise overload and short-circuit protection for industrial and commercial applications.
Built on the 3VA20 IEC Frame 100 platform, the breaker offers a rated current of 40A and a breaking capacity of 36kA at 415V AC. The electronic trip unit enables adjustable protection settings, improving system coordination, operational reliability, and equipment safety. It is widely used in LT panels, PCC panels, MCC systems, commercial buildings, and industrial power distribution networks.
• Siemens SENTRON 3VA2 series MCCB
• Part Number: 3VA2040-4HL42-0AA0
• 4-Pole Molded Case Circuit Breaker
• Rated Current: 40A
• IEC Frame Size 100 (3VA20)
• Microprocessor-Based Trip Unit ETU320 LI
• Adjustable Overload Protection (Ir: 16A–40A)
• Adjustable Short-Circuit Protection (Ii: 1.5–12 × In)
• Breaking Capacity: 36kA at 415V AC
• Line Protection (LI Function)
• Adjustable Neutral Protection (OFF / 100%)
• Fixed Mounting Design
• Front Terminal Connection
• High Mechanical and Electrical Endurance
• Compact Design for Panel Installation
• Suitable for Industrial and Commercial Power Distribution
• Reliable Overload and Short-Circuit Protection
• Complies with IEC 60947-2 Standards
• Supports Optional Modular Accessories
• Ideal for LT Panels, MCC, PCC, Distribution Boards, and Machine Protection Systems
| Parameter | Specification |
|---|---|
| Product Series | Siemens SENTRON 3VA2 |
| Part Number | 3VA2040-4HL42-0AA0 |
| Product Type | MCCB (Molded Case Circuit Breaker) |
| Frame Size | 3VA20 / IEC Frame 100 |
| Number of Poles | 4 Pole |
| Rated Current (In) | 40A |
| Trip Unit Type | Electronic Microprocessor ETU320 LI |
| Protection Function | Overload & Short-Circuit Protection |
| Overload Setting (Ir) | 16A – 40A Adjustable |
| Short Circuit Setting (Ii) | 1.5 – 12 × In Adjustable |
| Breaking Capacity (Icu) | 36kA at 415V AC |
| Rated Insulation Voltage (Ui) | 800V |
| Rated Operational Voltage (Ue) | Up to 690V AC |
| Frequency | 50/60 Hz |
| Mounting Type | Fixed Mounting |
| Connection Type | Front Terminal / Nut Keeper Kit |
| Neutral Protection | Adjustable (OFF / 100%) |
| Front Protection Degree | IP40 |
| Mechanical Life | 20,000 Operations (Typical) |
| Electrical Life | 12,000 Operations at 415V AC |
| Standard Compliance | IEC 60947-2 |
| Weight | Approx. 2.7 kg |
| Application | LT Panels, PCC Panels, MCC Systems, Commercial Buildings, Industrial Power Distribution, Feeder & Equipment Protection |
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