Description
Reliance 57552-4: High-Performance Industrial Control Relay
The Reliance 57552-4 is a robust industrial control relay designed to meet the demands of modern automation systems. Whether you’re managing motor controls, lighting circuits, or signal switching, this relay delivers consistent performance in challenging environments.
Key Features
- High Switching Capacity: Capable of handling up to 16A at 250V AC, making it ideal for heavy-duty applications.
- Compact Design: Its slim profile allows for space-saving installation in control panels, which is especially useful in densely packed setups.
- Plug-and-Play Functionality: Designed for DIN rail mounting, reducing installation time and effort.
- Wide Operating Temperature Range: Performs reliably in temperatures from -25°C to +70°C, ensuring stability in extreme conditions.
- Multiple Contact Configurations: Offers flexibility with SPDT (Single Pole Double Throw) contacts for versatile wiring options.
Technical Specifications
| Specification | Details |
|---|---|
| Brand/Model | Reliance 57552-4 |
| HS Code | 85364110 |
| Power Requirements | 24V DC / 230V AC Coil Voltage |
| Dimensions & Weight | 90mm x 70mm x 65mm, 350g |
| Operating Temperature | -25°C to +70°C |
| Signal Input/Output Types | SPDT Contacts |
| Communication Interfaces | N/A (Mechanical Relay) |
| Installation Method | DIN Rail Mounting |
Application Fields
This relay shines in industries where precision and reliability are critical. For example, it’s commonly used in HVAC systems to manage compressor cycles, in manufacturing plants for conveyor belt controls, and in building automation for lighting schedules. One thing I appreciate is how well it integrates into legacy systems while still supporting newer technologies.
Advantages & Value
From my experience, customers choose the Reliance 57552-4 not just for its durability but also because it simplifies procurement decisions. It’s compatible with most standard DIN rails, so there’s no need for costly custom brackets. Additionally, its long lifespan reduces downtime and maintenance costs, which seems to be a recurring concern for many engineers. You might notice that the upfront cost is slightly higher than some alternatives, but the total cost of ownership is lower due to fewer replacements and repairs.
Installation & Maintenance
Installing the Reliance 57552-4 is straightforward if you follow these guidelines:
- Ensure proper ventilation around the relay to prevent overheating.
- Use appropriately sized wires and secure connections to avoid loose contacts.
- Check the control cabinet’s environmental conditions; humidity levels should remain below 85% non-condensing.
For routine maintenance, periodically inspect the relay for signs of wear or corrosion. Firmware updates aren’t applicable here since it’s a purely mechanical device, but recalibration may be necessary after prolonged use in high-vibration environments.
Quality & Certifications
The Reliance 57552-4 comes with certifications including CE, UL, and RoHS compliance, ensuring it meets international safety and environmental standards. The manufacturer offers a 12-month warranty, covering defects in materials and workmanship under normal usage conditions.
Our order placement process includes a 365-day warranty, with delivery within one week for in-stock items. Payment terms require a 50% advance payment, with the balance due before shipment. Express shipping via FedEx, UPS, or DHL ensures your equipment arrives promptly and securely.
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