Siemens 3VA11 underload disconnector, MCCB molded case circuit breaker, without thermal or magnetic protection, screw terminal, IP40, with the following characteristics:
Number of poles: 4 of 160 amperes
Rated voltage: Up to 690 V AC, 600 V DC
Conditional short-circuit current: Up to 70 kA (with fuses)
Regulatory compliance: IEC 60947, overvoltage category IV
Screw terminals: Front with silver surfaces
Dimensions: 130x101.6x70 mm
Degree of protection: IP40 front
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The Siemens 3VA11 is a 4-pole MCCB molded case circuit breaker with a current rating of 160A. It is designed to function as an underload disconnect, main, safety and emergency switch, offering maximum versatility in industrial switchboards and high-performance installations.
Fixed flush-mounted design with front clamp connections ensures ease of installation and long-term reliability. With impulse withstand voltage up to 8 kV and conditional short-circuit protection up to 70 kA (with NH fuses), the device offers high operational safety in demanding industrial environments.
This model has no overload or short-circuit protection, making it perfect for pure disconnection functions where protections are already guaranteed upstream. It is also ideal as a maintenance or repair switch, with clear indication of the switching status via ON, TRIP, OFF lever.
| Number of poles | 4P |
|---|---|
| Rated current | 160 A |
| Rated voltages | AC: up to 690 V - DC: up to 600 V - Isolation: 800 V |
| Conditional short-circuit current | 70 kA (with NH fuses) |
| Power dissipation | Max 38 W |
| Mechanical life span | 20,000 cycles |
| Main connections | Front screw terminals, silver surfaces |
| Installation type | Fixed recessed, front mounting with 4 holes |
| Front protection | IP40 |
| Operating temperature range | -25 °C to +70 °C |
| Dimensions | 130 x 101.6 x 70 mm |
| Supported functions | Main switch, safety switch, emergency OFF, disconnect switch |
| Motorized control | Prepared (optional) |
| Auxiliary and release contacts | Not present, expandable |
| Certifications | IEC 60947, EPD available |
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