siemens
Siemens SENTRON 3VA Molded Case Circuit Breaker
Model: 3VA1110-4ED32-0AA0
4-hour response · Pricing in SAR · Delivery across all KSA regions
3VA1110-4ED32-0AA0 — Siemens SENTRON 3VA Molded Case Circuit Breaker
The Siemens SENTRON 3VA is the Kingdom's most specified Siemens moulded case circuit breaker, covering 16 A to 1600 A in a compact footprint that combines high breaking capacity with advanced electronic trip unit capability. Available in two versions — the 3VA1 with thermal-magnetic trip unit for applications requiring simple, reliable overcurrent protection, and the 3VA2 with electronic trip unit (ETU) for applications requiring adjustable protection settings, energy measurement, and digital communication — the 3VA range addresses every distribution protection requirement from final sub-circuit protection through to main incomer protection in industrial LV switchboards.
The 3VA2 electronic trip unit (ETU) is the differentiating feature of the range: the ETU provides independently adjustable Long-time (I²t), Short-time (I²t or I), and Instantaneous (I) protection thresholds, allowing the electrical engineer to tune protection coordination precisely to the distribution system's impedance characteristics rather than accepting fixed trip curves. Zone Selectivity (ZSI) — available on the 3VA2 with ETU5xx and ETU8xx — accelerates fault clearing in the faulted zone while keeping upstream breakers closed, maintaining supply to healthy distribution sections. This is a critical feature in Saudi Arabia's large industrial LV boards where fault isolation speed directly affects production continuity at petrochemical and manufacturing facilities.
The 3VA2 ETU also incorporates energy measurement to Class 1 accuracy for voltage, current, active power, reactive power, and energy (kWh/kVArh), with Modbus TCP and PROFINET communication to export data to energy management systems. This integrated measurement capability satisfies the SEC energy metering requirements for large commercial and industrial consumers and supports Vision 2030 energy efficiency reporting without additional metering devices. The plug-in version of the 3VA allows the circuit breaker to be withdrawn from its plug-in base for maintenance without de-energising the distribution board, a feature that saves significant downtime in hospitals, data centres, and continuously-operating process facilities.
Razz Middle East maintains comprehensive stock of 3VA1 and 3VA2 MCCBs across the full current range in both fixed and plug-in versions, with ETU options for all standard protection coordination requirements. We provide full application engineering support for protection coordination studies and energy metering configuration.
Technical Specifications
Full specifications for the 3VA1110-4ED32-0AA0
- Rated Current
- 16–1600 A
- Voltage
- Up to 690 V AC
- Breaking Capacity
- Up to 150 kA (3VA2)
- Poles
- 3P / 4P
- Trip Unit
- TM (thermal-magnetic) / ETU (electronic, 3VA2)
- Energy Metering
- Class 1 (ETU5xx/8xx)
- Communication
- Modbus TCP, PROFINET (ETU)
- Mounting
- Fixed / Plug-in / Withdrawable
- Standard
- IEC 60947-2
Key Features & Benefits
- Independently adjustable L, S, and I protection thresholds on the ETU allow precise protection coordination to the distribution system's actual impedance, replacing fixed thermal-magnetic curves with system-optimised trip settings.
- Zone Selective Interlocking (ZSI) on 3VA2 ETU5xx and ETU8xx accelerates fault clearing in the faulted zone while keeping upstream breakers closed, maintaining supply continuity to healthy distribution sections during fault events.
- Class 1 energy measurement for V, I, P, Q, and kWh/kVArh integrated in the ETU eliminates separate metering devices for energy management, satisfying SEC metering requirements and Vision 2030 energy reporting obligations.
- Modbus TCP and PROFINET communication exports real-time power quality and energy data to building management systems and industrial SCADA platforms, enabling remote monitoring and trending without additional meters.
- Plug-in version allows circuit breaker withdrawal from its plug-in cradle without de-energising the distribution board, reducing maintenance downtime in hospitals, data centres, and continuously-operating industrial facilities.
- Breaking capacity up to 150 kA on the 3VA2 covers the highest prospective fault currents in Saudi Arabia's large industrial and utility LV distribution systems, including ARAMCO and SABIC main switchboard installations.
- Comprehensive accessories ecosystem — RCD modules, undervoltage releases, shunt releases, auxiliary contacts, and alarms — allows the 3VA to be configured for any protection scheme from a standard parts range without bespoke engineering.
Industrial Applications in Saudi Arabia
- Main incomer and outgoing feeder protection in industrial LV switchboards for ARAMCO and SABIC facilities, where 3VA2 ETU with ZSI minimises fault isolation time while maintaining supply to non-faulted sections.
- Sub-distribution board protection in commercial towers and hotels across Riyadh and Jeddah, where plug-in 3VA2 breakers allow electrical maintenance during occupied hours without de-energising occupied floor distribution panels.
- Motor circuit protection in MCCs at NWC water pumping stations, where ETU adjustable settings allow protection coordination with downstream overload relays without nuisance tripping during motor starting.
- Energy metering at main switchboard incomers in large industrial facilities, where 3VA2 ETU Class 1 accuracy satisfies SEC energy audit requirements and feeds real-time consumption data to the facility's energy management system.
- Generator incomer and bus-coupler protection in standby power systems at hospitals and data centres across the Kingdom, where ETU settings match generator short-circuit capability and downstream breaker coordination requirements.
- Transformer secondary protection in industrial HV/LV substations, where the 3VA2's high breaking capacity handles the transformer's maximum prospective fault current contribution without needing a larger and more expensive ACB.
- NEOM and Vision 2030 project LV distribution protection, where PROFINET communication enables integration into the project's smart energy management infrastructure and provides real-time circuit-level energy metering data.
Industrial Supplier in Saudi Arabia
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Common questions from buyers in Saudi Arabia and the GCC