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RS PRO PCB Power Relay 12V DC Coil 50A Switching Current SPST PCB Mount 476-577
Specifications
| Country of Origin | China |
|---|---|
| Brand | RS PRO |
| Height | 30.2mm |
| Length | 39mm |
| Model | 476-577 |
| Width | 15mm |
| Mount Type | PCB |
| Contact Configuration | SPST |
| Switching Current | 50A |
| Terminal type | Solder |
| Standards/Approvals | RoHS |
| Coil Voltage | 12V dc |
| Switching Voltage | 440 V AC |
| Capacitor Load | 200 μF |
Key Features
- Robust PCB power relay rated for 12V DC coil operation.
- Capable of switching up to 50A current for heavy-duty applications.
- SPST (single-pole, single-throw) contact configuration for reliable circuit control.
- PCB mounting with solder terminals ensures secure installation.
- Features high dielectric strength of 4 kV between coil and contacts for safety.
- Operates within a wide temperature range from -40°C to +70°C.
- Supports maximum switching power of 12.5 kVA AC and up to 440V AC voltage.
- Constructed with silver alloy contacts and 8 mm creepage distance for durable performance.
Product Description
RS PRO model 476-577 PCB Power Relay is engineered to deliver reliable switching of high-current loads in demanding industrial environments. With its 12V DC coil, the relay efficiently actuates switching actions for circuits carrying up to 50A, making it suitable for use in power distribution, industrial automation, HVAC systems, sorting and counting units, and cleaning equipment.
The relay offers a SPST (single-pole, single-throw) contact configuration, providing secure control of circuits with a normally open contact arrangement. Its compact footprint (39 mm length, 15 mm width, 30.2 mm height) allows for easy integration onto printed circuit boards. The relay features through-hole solder terminals, ensuring robust connection and reliable mechanical fastening during assembly.
Key technical advantages include a coil power rating of 3 W, coil resistance of 48 Ω, and isolation between coil and contacts rated at 4 kV AC. The relay supports a maximum switching power of 12.5 kVA AC and enables switching voltages up to 440 V AC. Safety features include creepage distance of 8 mm, lamp load capacity up to 5000 W, and a wash-tight enclosure suitable for rigorous industrial deployment.
Durability is provided by mechanical life expectancy of up to 1,000,000 cycles. Special features include a capacitor load capability up to 200 μF (minimum inrush current at 500 A/10 μs). Constructed with silver alloy contacts, the relay ensures reliable conductivity and withstands operational stress in heavy-duty applications. The operating temperature range is -40°C to +70°C, supporting deployment in both ambient and extreme settings.
The RS PRO PCB Power Relay is RoHS compliant, meeting global control system requirements. Typical industrial, commercial, HVAC, and manufacturing uses include integration in panel controls, machinery, lighting systems, and automated processes where high current switching reliability is critical.
Discover more relays and industrial automation solutions in the Power Relay category at EnvMart, and review RS PRO's broad portfolio for quality and performance-driven applications.
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Frequently Asked Questions
This model is capable of switching up to 50A current, making it suitable for heavy-duty applications.
The relay operates with a coil voltage of 12V DC.
It features a SPST (single-pole, single-throw) contact configuration for reliable circuit control.
The relay has a length of 39 mm, width of 15 mm, and height of 30.2 mm.
The relay supports a maximum switching voltage of up to 440 V AC.
It has a high dielectric strength of 4 kV between the coil and contacts for enhanced safety.
The relay can handle a maximum switching power of 12.5 kVA AC.
It is equipped with solder terminals for PCB mounting, ensuring secure installation.
The operating temperature range is from -40°C to +70°C, allowing for use in various environments.
It has a mechanical life expectancy of up to 1,000,000 cycles, suitable for demanding applications.
Yes, the RS PRO PCB Power Relay is RoHS compliant, meeting global control system requirements.
It can handle a capacitor load of up to 200 μF with a minimum inrush current of 500 A/10 μs.
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