3VA4140-4ED34-0AA0 - 40Amp Circuit Breaker

Siemens 3VA4140-4ED34-0AA0 Circuit Breaker – 40A, 3-Pole, 25kA @ 480V

When you need dependable circuit protection that simply works—day in and day out—the Siemens 3VA4140-4ED34-0AA0 molded case circuit breaker delivers. Built as part of Siemens’ trusted SENTRON 3VA4 series, this 40 amp, 3-pole breaker is engineered to protect your electrical system from overloads and short circuits without guesswork or unnecessary complexity. With a 25 kA interrupting rating at 480V, it’s a strong choice for commercial and industrial applications where reliability isn’t optional—it’s critical. What sets this breaker apart is its TM210 thermal-magnetic trip unit, which provides fixed, precise protection. There’s no need for field adjustments—overload protection is set at 40A, and instantaneous short-circuit protection activates at 10 times the rated current. That means consistent performance you can count on, whether you’re protecting panelboards, machinery, or HVAC systems. Beyond performance, this Siemens circuit breaker is designed with real-world use in mind. Its compact 125 frame size helps maximize panel space, while its solid construction supports long service life—even in demanding environments. From installation to operation, everything about this breaker is built to make your job easier and your system safer.

Key Features and Benefits

• Consistent, No-Guess Protection – Fixed thermal-magnetic trip (TM210) eliminates setup errors
• High Fault Protection – 25 kA interrupting capacity at 480V handles demanding conditions
• Optimized for 3-Phase Systems – 3-pole configuration for commercial and industrial distribution
• Space-Saving Design – Compact 125 frame fits more easily into crowded panels
• Built for Longevity – Designed for thousands of mechanical and electrical operations
• Wide Temperature Tolerance – Reliable performance from -25°C to 70°C
• HACR Rated – Suitable for HVAC and refrigeration applications
• Secure, Stable Connections – Engineered terminals help ensure safe, consistent conductivity

Technical Specifications

• Brand: Siemens
• Series: SENTRON 3VA4
• Model / Catalog Number: 3VA4140-4ED34-0AA0
• Type: Molded Case Circuit Breaker (MCCB)
• Poles: 3
• Rated Current: 40 Amps
• Trip Unit: TM210 (Thermal-Magnetic, LI)
• Interrupting Capacity:
  • 25 kA @ 480V
  • 65 kA @ 240V
• Rated Voltage: Up to 600V AC
• Mechanical Life: 15,000 operations
• Electrical Life: Up to 8,000 cycles @ 480V
• Protection Rating: IP40 (front)
• Dimensions: 5.09" H x 3" W x 2.96" D
• Weight: 0.743 kg

Material Compliance and Certifications

• You’re not just getting performance—you’re getting peace of mind. This breaker is manufactured to meet strict safety and environmental standards, including:
• UL 489 certification for North American electrical safety
• RoHS compliance for restricted hazardous substances
• WEEE compliance for responsible environmental handling
• Built in accordance with high trust and quality standards aligned with modern search and product reliability expectations

Where It Works Best

• This breaker fits right into applications where failure isn’t an option:
• Commercial buildings and office power systems
• Industrial machinery and equipment protection
• HVAC and refrigeration systems
• Manufacturing and processing facilities
• Electrical distribution panels requiring dependable protection