Description
Siemens 3RT2038-3AP00 AC Contactor
Product Dimensions:
The Siemens 3RT2038-3AP00 is a high-performance power contactor from the SIRIUS Innovation generation. It is a size S2 contactor designed for switching motors and resistive loads in industrial environments where high reliability and durability are paramount.
Product Detailed Description
The 3RT2038-3AP00 is a 3-pole power contactor engineered for high-frequency switching. It belongs to the 3RT20 series, which is optimized for AC-3 (inductive load) applications. This specific model features spring-loaded terminals (Cage Clamp), which provide superior resistance to vibration and reduce installation time compared to traditional screw terminals.
Technical Parameters
| Feature | Specification |
| Product Series | SIRIUS 3RT2 |
| Size | S2 |
| Number of Poles | 3 (NO – Normally Open) |
| Operating Current (I_e) | 80 A (at AC-3, 400 V) |
| Power Rating | 37 kW (at 400 V, 50 Hz) |
| Control Supply Voltage | 230 V AC, 50 Hz |
| Auxiliary Contacts | 1 NO + 1 NC (Integrated) |
| Connection Type | Spring-loaded terminals (Cage Clamp) |
| Mechanical Life | 10,000,000 operating cycles |
| Degree of Protection | IP20 (Front side) |
Product Advantages
- Spring-Loaded Terminals: The “Cage Clamp” technology ensures a gas-tight, vibration-proof connection that never requires re-tightening, making it ideal for high-vibration machinery.
- Compact Design: Despite its high 80A rating, the S2 frame size remains highly space-efficient, allowing for smaller control cabinet dimensions.
- Modular Compatibility: It is part of the SIRIUS modular system, meaning it can be seamlessly combined with 3RV2 circuit breakers and 3RB3 overload relays using standard link modules.
- Energy Efficiency: Optimized coil design reduces power loss, contributing to lower heat generation within the electrical cabinet.
- High Operational Reliability: Designed to operate in high ambient temperatures (up to 60°C without derating) and under harsh electrical conditions.
Important Considerations & Precautions
- Coil Voltage: This model is designed for 230 V AC at 50 Hz. Connecting it to 60 Hz power without checking the tolerance may lead to overheating or humming.
- Inrush Currents: Ensure that the upstream protection (fuses or circuit breakers) is rated for the motor’s inrush current to prevent nuisance tripping during startup.
- Mounting Position: While it can be mounted on a standard 35mm DIN rail, for maximum stability in size S2, it is recommended to use the screw-fixing option on a mounting plate.
- Arcing Distance: Maintain the minimum clearance distances from grounded parts and other electrical components as specified in the Siemens technical manual to ensure safe arc dissipation.
Product Applications
The Siemens 3RT2038-3AP00 is used extensively in heavy-duty industrial automation:
- Motor Control: Starting and stopping heavy 3-phase motors up to 37 kW, such as those used in large pumps and fans.
- Material Handling: Powering large conveyor systems, elevators, and cranes in logistics centers.
- Compressors: Controlling high-capacity air or refrigeration compressors in industrial cooling.
- HVAC Systems: Large-scale commercial heating and ventilation units.
- Industrial Processing: Switching resistive heating elements or lighting loads in manufacturing plants.
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
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