
| Brand | AUTOMATIONDIRECT |
|---|---|
| Manufacturer Part Number | H750-3C-240A |
| Part Type | COIL |
| Number Of Pins | 11-PIN |
The AutomationDirect H750-3C-240A Octal Relay is a versatile and robust electrical component designed for use in hazardous locations. This relay conforms to the requirements of Class I, Division 2 Groups E, F, and G, and Class II, Division 1 and 2, Groups E, F, and G of the National Electrical Code (NEC) and Canadian Electrical Code (CEC).
The H750-3C-240A is an 11-pin, 12-ampere, 3-pole, double-throw (3PDT) relay, which means it has eight normally open (NO) contacts and eight normally closed (NC) contacts. This configuration allows for a wide range of switching applications, making it suitable for various automation and control systems.
The coil of this relay operates on 240 volts alternating current (VAC) and requires a minimum of 0.31 amperes to energize. The relay contacts are rated for a maximum switching capacity of 12 amperes per contact at 240VAC, ensuring reliable and consistent performance.
The relay housing is constructed of die-cast aluminum, which not only provides excellent heat dissipation but also ensures durability and resistance to harsh environments. The relay comes with an integrated coil overvoltage protector, which helps prevent damage to the coil due to voltage surges or power fluctuations.
The H750-3C-240A is designed with a removable plug-in terminal block, which simplifies wiring and makes installation and maintenance easier. The terminal block is UL-listed and features gold-plated contacts to minimize resistance and ensure long-term reliability.
This hazardous location relay comes with a built-in test switch, which allows users to perform a quick functional test of the contacts without removing power from the system. The test switch also features a test indicator, making it easy to identify the status of the relay during testing.
The AutomationDirect H750-3C-240A Octal Relay is an essential component for various automation and control applications in hazardous locations, providing reliable and consistent switching performance with its robust design, versatile configuration, and compliance with relevant safety standards.
The Automation Direct H750-3C-240A Octal Relay is a hazardous location relay designed for use in industrial applications where explosive atmospheres may be present. This relay offers several advantages and disadvantages that should be considered before making a purchase.
Advantages:1. Hazardous Location Certification: The H750-3C-240A relay is certified for use in Class 1, Division 2, Groups A, B, C, and D hazardous locations. This makes it a suitable choice for applications in industries such as oil and gas, chemical processing, and mining where explosive atmospheres may be present.
2. Octal Design: The octal design of the relay allows for the connection of up to eight single-pole, double-throw (SPDT) contacts in a single relay. This can help reduce the number of components required in a control system, simplifying wiring and reducing installation time.
3. 12A Contact Rating: Each contact on the H750-3C-240A relay is rated for a maximum current of 12 amps, making it suitable for use with a wide range of loads.
Disadvantages:1. Coil Voltage: The relay operates on a 240VAC coil voltage, which may require additional transformer or power supply components to be used in the control system.
2. Size and Weight: The H750-3C-240A relay is larger and heavier than some other relays on the market, which may make it less suitable for applications where space and weight are limited.
3. Cost: The H750-3C-240A relay is more expensive than some other relays due to its hazardous location certification and higher contact rating.
Conclusion:The Automation Direct H750-3C-240A Octal Relay offers several advantages for use in hazardous locations, including its certification for use in explosive atmospheres and its high contact rating. However, its larger size, higher cost, and requirement for a higher coil voltage may be disadvantages for some applications. Ultimately, the decision to purchase the H750-3C-240A relay will depend on the specific requirements of the application and the trade-offs between the advantages and disadvantages.
Recommendation:If the application requires a relay for use in a hazardous location and the load currents are within the capacity of the H750-3C-240A relay, then it may be a suitable choice. However, if the application does not require hazardous location certification or the load currents are lower, then a non-hazardous location relay with a lower contact rating and a lower coil voltage may be a more cost-effective option. It is important to carefully evaluate the specific application requirements and consider the trade-offs between the advantages and disadvantages before making a purchase.
This may affect shipping cost. Damaged, if it is not insured. Model: H750-3C-240A. 12a contact rating.
Our standard shipping method is USPS priority mail. 24 vac coil voltage . When stated: condition unknown items are being sold as-is with no guarantee. Please be very specific how you want your merchandise shipped.
Octal relay 12a 3PDT 24vac coil 11-pin hazloc hermetically sealed. Box FedEx ups refuse to deliver. Sorry, no personal checks.
