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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RV2721-4CD10 |
| Alternative Part Number | 3RV27214CD10 |
| Manufacturer | Siemens |
| Type | Circuit Breaker for system protection |
| Mounting Type | Screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 60715 |
| Height | 144 mm |
| Width | 45 mm |
| Depth | 97 mm |
| Required Spacing | Varies with voltage level, up to 70 mm downwards/upwards for grounded parts at 690 V |
| Electrical Connection | Screw-type terminals for main current circuit |
| Connectable Conductor Cross-section | 1 ... 10 mm² solid or stranded, max. 2x 10 mm²; 1 ... 16 mm² finely stranded with core end processing |
| Tightening Torque | 2.5 ... 3 N·m for main contacts with screw-type terminals |
| Screwdriver Shaft Design | Diameter 5 to 6 mm |
| Screwdriver Tip Size | Pozidriv size 2 |
| Connection Screw Thread Design | M4 for main contacts |
| Operating Voltage | Rated value 690 V |
| Operating Frequency | Rated value 50 ... 60 Hz |
| Operating Current | Rated value 22 A at AC-3, 400 V |
| Operating Power | Up to 18,500 W at AC-3, 690 V |
| Number of Poles | 3 for main current circuit |
| Protection Class | IP20 on the front, IP00 of the terminal |
| Ambient Temperature Range | -20 ... +60 °C during operation |
| Relative Humidity | 10 ... 95 % during operation |
| Commodity Code | 853620 |
The Siemens 3RV2721-4CD10 is a robust circuit breaker designed for system protection, ensuring the safety and reliability of electrical installations. This component is engineered to provide effective protection by interrupting circuit flow upon detecting faults, thus preventing damage to equipment and reducing downtime. Its compact design allows for efficient use of space within control cabinets, making it suitable for a variety of industrial applications.
Featuring a three-pole configuration, the 3RV2721-4CD10 is capable of handling operating voltages up to 690V and rated operational currents of 22A. The device is equipped with screw-type terminals for secure and straightforward wiring, accommodating conductor cross-sections ranging from 1 to 16 mm². The circuit breaker's thermal overload release ensures reliable operation and protection against overloads.
Constructed to withstand challenging industrial environments, the 3RV2721-4CD10 operates effectively within a temperature range of -20 to +60°C and at installation altitudes up to 2000 meters above sea level. Its mechanical and electrical endurance is rated at 100,000 switching cycles, demonstrating its durability and long service life.
The circuit breaker's front panel is rated IP20 for protection against finger contact, and it is designed for easy mounting onto a 35 mm standard mounting rail according to DIN EN 60715. With its combination of performance, reliability, and ease of use, the Siemens 3RV2721-4CD10 is an essential component for safeguarding electrical systems in a diverse range of industrial settings.
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