Siemens SENTRON Molded case circuit breaker, Din rail, 4-pole, 25kA, 125A Part number 3VA1112-3ED42-0AA0

Product Overview

The Siemens 3VA1112-3ED42-0AA0 is a SENTRON 3VA1 series molded-case circuit breaker (MCCB) designed for line protection in industrial and commercial power distribution systems. This 4-pole breaker features a fixed thermal-magnetic trip unit and a rated operational current of 125 A. With a high breaking capacity of 25 kA at 415 V AC, it provides reliable protection against overloads and short circuits, ensuring maximum safety and performance in demanding applications.

Key Features

• Part of the Siemens SENTRON 3VA1 MCCB series
• 4-pole configuration (3 phases + neutral)
• Rated current: 125 A
• High short-circuit breaking capacity: 25 kA at 415 V AC
• Fixed thermal-magnetic trip unit (TM210) for overload and short-circuit protection
• Rated insulation voltage: 800 V
• Rated operational voltage: up to 690 V AC and 600 V DC
• Front connection design with nut keeper kit for secure cable termination
• Compact frame size (Frame 160) for space-saving installation
• Long service life and high mechanical endurance

Technical Specifications

• Product Series: SENTRON 3VA1
• Article Number: 3VA1112-3ED42-0AA0
• Frame Size: 160 (IEC)
• Number of Poles: 4 (3P+N)
• Rated Current (In): 125 A
• Rated Operational Voltage (Ue): Up to 690 V AC / 600 V DC
• Breaking Capacity (Icu): 25 kA at 415 V AC (Class N)
• Rated Insulation Voltage (Ui): 800 V
• Trip Unit Type: Fixed thermal-magnetic (TM210)
• Power Loss (approx.): 28 W
• Mechanical Durability: Up to 20,000 operating cycles
• Protection Class (Front): IP40
• Ambient Operating Temperature: –25 °C to +70 °C
• Mounting Type: Fixed mounting (front connection)

Compliance & Certifications

• Complies with IEC/EN 60947-2 standards for low-voltage circuit breakers
• Manufactured to Siemens SENTRON MCCB quality and safety standards
• RoHS compliant and suitable for industrial environments
• Certified for international use (CE, UL, CSA)

Applications

Ideal for industrial and commercial power distribution systems requiring reliable protection for feeders, lines, and equipment. Suitable for use in main and sub-distribution boards, switchboards, control panels, and machinery installations where dependable overload and short-circuit protection is essential.