Siemens 3RV1042-4FA10 CIRCUIT BREAKER SIZE S3 FOR MOTOR PROTECTION 3 Pole

The Siemens 3RV1042-4FA10 circuit breaker is a high-performance, motor-protective device designed to safeguard motors and associated equipment from overcurrent, short circuits, and phase failures. It belongs to Siemens’ 3RV1 series, known for reliability and ease of integration in industrial applications.

Key Features:

General Specifications:

1. Type: Circuit breaker for motor protection.
2. Frame Size: S3.
   • Designed for medium-sized motor loads.
3. Poles: 3-pole configuration for three-phase systems.

Electrical Ratings:

1. Operational Voltage: Up to 690V AC.
2. Current Range:
   • Adjustable current settings for motor overload protection.
   • Nominal current ratings tailored for specific motor applications (consult product manual for detailed range).
3. Breaking Capacity:
   • High short-circuit breaking capacity suitable for industrial environments.
4. Tripping Characteristics:
   • Integrated thermal (overload) and magnetic (short-circuit) trip units.
   • Provides protection against prolonged overloads and instantaneous short circuits.

Design:

1. Compact Size:
   • Space-saving design ideal for control panels and MCCs (Motor Control Centers).
2. Connections:
   • Screw or spring-loaded terminals for secure and quick installation.
3. Switching Mechanism:
   • Robust toggle switch for ON/OFF control.

Applications:

• Motor Protection:
  • Prevents damage from overloads, short circuits, and phase imbalances in motors.
• Industrial Automation:
  • Commonly used in manufacturing plants, conveyors, pumps, and fans.
• Power Distribution:
  • Ensures safe operation of motor-driven systems in various industries.

Advantages:

1. Integrated Motor Protection:
   • Combines overload and short-circuit protection in one device.
2. High Reliability:
   • Durable construction for industrial environments.
3. Ease of Use:
   • Adjustable current settings and straightforward installation.
4. Compliance:
   • Meets IEC and UL standards for motor protection.

Installation Notes:

1. Mounting:
   • Can be mounted on DIN rails or directly on panels.
2. Wiring:
   • Ensure proper phase connections and grounding as per the wiring diagram.
3. Current Setting:
   • Adjust the thermal overload dial to match the motor’s full-load current.
4. Inspection:
   • Verify connections and test the breaker function before commissioning.

Maintenance Tips:

1. Periodically check connections for signs of wear or loosening.
2. Test the trip functions as per Siemens’ guidelines to ensure ongoing protection.
3. Replace any damaged or worn components promptly to maintain system integrity.