Description
ABB 1SVR440721R0300: Compact and Reliable Auxiliary Contact Block
The ABB 1SVR440721R0300 is a compact auxiliary contact block designed to enhance the functionality of circuit breakers and contactors in industrial control systems. One thing I appreciate is how seamlessly it integrates into existing setups, offering flexibility for both new installations and retrofits.
Key Features
- Modular Design: Allows easy attachment to compatible devices without additional tools, reducing installation time.
- High Electrical Durability: Rated for millions of switching cycles, ensuring long-term reliability even under heavy use.
- Compact Size: Saves valuable panel space while maintaining full functionality, making it ideal for densely packed control cabinets.
- Versatile Mounting Options: Supports snap-on or screw-down mounting, adapting to various installation requirements.
- Wide Operating Temperature Range: Performs reliably in harsh environments, from -25°C to +60°C.
Technical Specifications
| Specification | Details |
|---|---|
| Brand/Model | ABB / 1SVR440721R0300 |
| HS Code | 85369010 |
| Power Requirements | No direct power required (signal-based operation) |
| Dimensions & Weight | Approx. 45mm x 30mm x 25mm, ~150g |
| Operating Temperature | -25°C to +60°C |
| Signal Input/Output Types | NO (Normally Open), NC (Normally Closed) |
| Communication Interfaces | N/A (mechanical signaling) |
| Installation Method | Snap-on or screw-down mounting |
Application Fields
This auxiliary contact block finds extensive use across industries such as manufacturing automation, HVAC systems, and energy distribution. For instance, you might notice that it’s commonly paired with motor starters in conveyor systems to monitor overload conditions. In many cases, engineers rely on this component for signaling status updates in PLC-controlled processes, ensuring smooth plant operations.
Advantages & Value
From my experience, customers value the 1SVR440721R0300 for its compatibility with a wide range of ABB products, simplifying procurement and inventory management. It also tends to reduce downtime due to its robust build quality. While some alternatives may seem cheaper upfront, they often lack the same level of reliability and longevity, which can lead to higher costs over time.
Installation & Maintenance
For optimal performance, ensure proper ventilation around the device during installation. Wiring should comply with local electrical codes, and connections must be secure to prevent signal loss. Routine maintenance includes periodic checks for dust accumulation and occasional recalibration if used in precision applications. Firmware isn’t applicable here since it operates purely through mechanical means.
Quality & Certifications
The ABB 1SVR440721R0300 complies with international standards including CE, UL, and RoHS certifications, guaranteeing safety and environmental responsibility. Additionally, it comes with a standard manufacturer’s warranty of one year, providing peace of mind for your investment.
Order Placement Process: Delivery takes about a week for in-stock items, though custom orders may take up to a month. Payment requires a 50% advance, with the balance due before shipment. We offer express delivery via FedEx, UPS, or DHL for faster service.
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