Plug in Relay For Low Voltage Control Panel
Eutroniks EOS-4N-T Plug-in General Purpose Relay
Overview:
The Eutroniks EOS-4N-T is a general-purpose relay available in a 14-pin configuration. It is designed for a variety of applications including industrial control systems, PLC panels, CNC machinery, building electrical enclosures, HVAC panels, and smart manufacturing plants. These relays are known for their reliability and durability, often referred to as electromechanical relays or industrial switches.
Technical Specifications:
- Coil Variants:
- DC Coil Rated Voltage: 6V, 12V, 24V, 48V, 110V, 220V
- AC Coil Rated Voltage: 6V, 12V, 24V, 48V, 110V, 230V, 380V
- Coil Power: 0.9W (DC), 1.2VA (AC)
- Pull-in Voltage: DC ≤ 75%, AC ≤ 80%
- Release Voltage: DC ≥ 10%, AC ≥ 30% @ 23°C
- Contact Specifications:
- Contact Form: 4 NO/NC
- Contact Capacity: 5A 250VAC / 5A 30VDC
- Contact Resistance: ≥50mΩ
- Insulation Resistance: ≥500mΩ
- Contact Material: Silver Tin Indium Oxide
- Performance:
- Mechanical Life: 180,000 operations per hour
- Operating Temperature: -40°C to 70°C
- Relative Humidity: 35-85% RH
- Dielectric Strength:
- Between coil and contacts: ≥1000VAC 1min
- Between contacts of different poles: ≥2000VAC 1min
- Between open contacts: ≥2000VAC 1min
- Additional Features:
- Compact and miniature design
- Equipped with an LED indicator and test button
- Comes with a release clip and marking label
- Certifications: CE, ROHS, REACH
FAQ for Eutroniks Plug-in Relays
General Questions:
Q: What are the typical applications of the 14-pin, 11-pin, and 8-pin relays in industrial settings? A: These relays are commonly used in industrial control systems, PLC panels, CNC machinery, building electrical enclosures, HVAC panels, and smart manufacturing plants. They serve as reliable switches in these applications, ensuring efficient and safe operation of various electrical systems.
Q: How does the coil resistance vary with different voltage ratings for both AC and DC variants? A: Coil resistance increases with higher voltage ratings for both AC and DC coils. For example, a 6V DC coil has a resistance of 40Ω, while a 220V DC coil has a resistance of 42,000Ω. Similarly, a 6V AC coil has a resistance of 11.5Ω, while a 380V AC coil has a resistance of 42,000Ω. The resistance values are designed to ensure proper operation at each voltage level.
Q: What is the significance of the contact material (Silver Tin Indium Oxide) used in these relays? A: Silver Tin Indium Oxide is used for its excellent conductivity and resistance to oxidation and arc erosion. This ensures reliable performance and long service life, even under high load conditions and frequent switching operations.
Specific to 14-Pin Relays:
Q: What is the maximum load capacity for the 14-pin relay in both AC and DC configurations? A: The 14-pin relay has a contact capacity of 5A at 250VAC and 5A at 30VDC. This allows it to handle substantial loads in both AC and DC circuits, making it versatile for various industrial applications.
Q: How do the pull-in and release voltages affect the relay’s operation at different temperatures? A: Pull-in voltage is the minimum voltage required to activate the relay, and release voltage is the minimum voltage at which the relay deactivates. For the 14-pin relay, the pull-in voltage is ≤ 75% of the rated voltage for DC and ≤ 80% for AC, while the release voltage is ≥ 10% of the rated voltage for DC and ≥ 30% for AC at 23°C. These thresholds ensure reliable operation across a range of temperatures, from -40°C to 70°C.
Q: What are the safety certifications obtained by the 14-pin relay and their importance in industrial applications? A: The 14-pin relay is certified with CE, ROHS, and REACH standards. These certifications ensure that the relay meets high safety, environmental, and health standards, making it suitable for use in various industrial environments.
Specific to 11-Pin Relays:
Q: How does the wiring and base configuration differ between the 11-pin and 14-pin relays? A: The 11-pin relay has fewer connection points than the 14-pin relay, leading to a simpler wiring and base configuration. This can make the 11-pin relay easier to install and suitable for applications where fewer connections are required.
Q: What are the typical coil resistance values for the 11-pin relay at various voltage levels? A: The coil resistance values for the 11-pin relay are similar to those of the 14-pin relay, varying with voltage. For instance, a 12V DC coil might have a resistance around 180Ω, and a 110V AC coil around 4,430Ω, ensuring proper function at different voltage levels.
Q: How does the dielectric strength between coil and contacts compare to that of the 14-pin relay? A: The dielectric strength between the coil and contacts for the 11-pin relay is generally similar to that of the 14-pin relay, ensuring safe operation by preventing electrical breakdown. Typically, the strength is ≥1000VAC for 1 minute.
Specific to 8-Pin Relays:
Q: What are the contact forms available for the 8-pin relay and their respective load capacities? A: The 8-pin relay typically offers configurations like 2 NO/NC (Normally Open/Normally Closed) contacts with load capacities that might range from 5A to 10A depending on the specific model and application requirements.
Q: How does the mechanical life of the 8-pin relay compare with that of the 14-pin and 11-pin relays? A: The mechanical life of the 8-pin relay is comparable to that of the 14-pin and 11-pin relays, often rated at around 180,000 operations per hour. This ensures reliable performance over a long period.
Q: What additional features (like LED indicators and test buttons) are included in the 8-pin relay model? A: The 8-pin relay may include features like an LED indicator for easy status monitoring and a test button for manual operation testing. These features enhance usability and facilitate maintenance in industrial applications.