Product Description

Siemens Earth Fault and Earth Leakage Protection for SENTRON 3VA Moulded Case Circuit Breaker – 7UG0996

The Siemens 7UG0996 Core Balance Current Transformer (CBCT) is a specialized accessory designed for earth fault and earth leakage protection systems used with SENTRON 3VA Moulded Case Circuit Breakers (MCCBs). It works in conjunction with Siemens Earth Leakage Relays (ELRs) to detect residual leakage currents and provide reliable protection against electrical faults, helping safeguard personnel, equipment, and electrical installations.

The 7UG0996 is a 35 mm diameter CBCT specifically intended for use in earth leakage monitoring applications. The CBCT continuously senses the vector sum of phase currents and detects leakage currents flowing to earth. When connected to a compatible Siemens Earth Leakage Relay, the system can initiate protective tripping through an MCCB shunt trip mechanism when leakage current exceeds the preset threshold.

Earth leakage protection is essential in modern electrical systems because it helps:

• Protect personnel from electric shock hazards
• Detect insulation failures at an early stage
• Reduce fire risks caused by leakage currents
• Improve electrical system reliability
• Minimize equipment damage
• Support preventive maintenance strategies
• Enhance compliance with electrical safety standards

These advantages make the Siemens 7UG0996 CBCT an important component in low-voltage power distribution systems.

The CBCT is designed for integration with Siemens earth leakage monitoring relays such as the 7UG0841 and 7UG0842 series. Together, the relay and CBCT form a complete earth leakage protection system suitable for industrial facilities, commercial buildings, utility installations, motor control centers, and critical power distribution networks.

A major advantage of the 7UG0996 is its compact 35 mm internal diameter, making it suitable for installations where conductor sizes and cable routing require a smaller CBCT opening. Siemens also offers larger CBCT variants within the same family to accommodate different cable sizes and application requirements.

The Siemens SENTRON 3VA Series is widely recognized for advanced protection and power distribution capabilities. When combined with the 7UG0996 CBCT and a compatible earth leakage relay, the system delivers enhanced fault detection and improved electrical safety for MCCB-protected circuits.

Designed to Siemens quality standards, the 7UG0996 offers reliable long-term performance and seamless compatibility with Siemens protection systems. Its robust construction ensures dependable operation even in demanding industrial environments where safety and reliability are critical.

Key Features

• Genuine Siemens CBCT Accessory
• Part Number: 7UG0996
• Designed for Earth Leakage Protection Systems
• Suitable for SENTRON 3VA MCCB Applications
• Internal Diameter: 35 mm
• Supports Earth Fault Monitoring
• Supports Earth Leakage Detection
• Compatible with Siemens ELR Relays
• Improves Electrical Safety
• Reliable Industrial Construction
• Easy System Integration
• Genuine Siemens Quality

Typical Applications

• Industrial Power Distribution Panels
• Motor Control Centers (MCCs)
• Manufacturing Facilities
• Commercial Buildings
• Utility Infrastructure Projects
• Electrical Switchboards
• Process Automation Plants
• Data Centers
• Critical Power Systems
• Electrical Safety Installations

At SB Smart (SBSmart.in), we supply genuine Siemens electrical protection components designed to improve safety, reliability, and operational efficiency. The Siemens 7UG0996 CBCT delivers dependable earth leakage detection and seamless integration with Siemens protection systems.

Whether you are implementing a new earth leakage protection system or upgrading an existing MCCB installation, the Siemens 7UG0996 provides the performance and reliability expected from Siemens SENTRON protection solutions.