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Specification & Description
| Specification | Description |
|---|---|
| Part Number | G7S-4A2B-E |
| Rated Voltage | 24 VDC |
| Contact Configuration | 4PST-NO, DPST-NC |
| Rated Load (Resistive) | NO Contact: 10 A at 250 VAC, 10 A at 30 VDC; NC Contact: 6 A at 250 VAC, 6 A at 30 VDC |
| Rated Carry Current | NO Contact: 10 A; NC Contact: 6 A |
| Maximum Switching Voltage | 250 VAC, 30 VDC |
| Maximum Switching Current | NO Contact: 10 A; NC Contact: 6 A |
| Contact Resistance | 100 mΩ max. |
| Operating Time | 50 ms max. |
| Release Time | 50 ms max. |
| Must Operate Voltage | 80% max. of rated voltage |
| Must Release Voltage | 10% min. of rated voltage |
| Maximum Operating Frequency | Mechanical: 18,000 operations/h; Rated load: 1,800 operations/h |
| Insulation Resistance | 100 MΩ min. |
| Dielectric Strength | Between coil and contacts: 4,000 VAC; Between different poles: 4,000 VAC; Between same poles: 1,500 VAC |
| Vibration Resistance | Destruction: 10 to 55 Hz at 0.75 mm amplitude; Malfunction: 10 to 55 Hz at 0.375 mm amplitude |
| Shock Resistance | Destruction: 1,000 m/s²; Malfunction: 100 m/s² |
| Durability | Mechanical: 10,000,000 operations min.; Electrical: 100,000 operations min. |
| Inductive Load Switching | NO Contact: AC15 AC240V 5A, DC13 DC24V 2A; NC Contact: AC15 AC240V 3A, DC13 DC24V 2A |
| Failure Rate (P Level) | 5 VDC, 1 mA |
| Ambient Operating Temperature | –25 to 70°C (with no icing or condensation) |
| Ambient Operating Humidity | 5% to 85% |
| Weight | Approx. 65 g |
The Omron G7S-4A2B-E relay is a robust and reliable component designed for a variety of industrial applications. This force-guided relay is compliant with EN61810-3 standards and certified by VDE, ensuring high-quality performance and adherence to safety regulations. With a high switching capacity of 10 A, it is capable of handling significant electrical loads, making it suitable for use in complex machinery and control systems.
The G7S-4A2B-E features a 4PST-NO and DPST-NC contact configuration, providing flexibility in circuit design. Its rated voltage of 24 VDC makes it compatible with common industrial control voltages. The relay's forcibly guided contacts help prevent hazardous machine states when integrated into safety interlocking circuits, contributing to overall equipment safety.
Constructed with durability in mind, the G7S-4A2B-E can withstand a wide range of operating temperatures from -25 to 70°C without icing or condensation issues. Its mechanical endurance is rated at 10 million operations minimum, and it has an electrical durability of 100,000 operations minimum at the rated load, ensuring a long service life even in demanding industrial environments.
The relay's compact design allows for efficient use of space within control panels, and it is compatible with track-mounting and back-mounting sockets, offering ease of installation and maintenance. Whether used in automation systems, safety circuits, or control panels, the Omron G7S-4A2B-E relay is a dependable choice for engineers and technicians seeking performance and reliability.
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Frequently Asked Questions
What type of contacts does the G7S-4A2B-E relay have?
The G7S-4A2B-E relay features forcibly guided contacts, which means that the contacts are mechanically linked to ensure that when one contact is in the open position, the other is in the closed position. This relay configuration includes 4PST-NO (Pole Single Throw, Normally Open) and DPST-NC (Double Pole Single Throw, Normally Closed) contacts.
Can this relay be used in safety circuits?
Yes, the G7S-4A2B-E relay is designed with forcibly guided contacts that make it suitable for use in safety-related control systems. Its contacts follow the guidelines of EN50205 Class A, which is a standard for relays with mechanically linked contacts used in safety applications.
What is the switching capacity of the G7S-4A2B-E relay?
The G7S-4A2B-E relay has a high switching capacity, with NO contacts rated for 10 A at 250 VAC or 30 VDC, and NC contacts rated for 6 A at 250 VAC or 30 VDC.
What are the mounting options for the G7S-4A2B-E relay?
The G7S-4A2B-E relay can be mounted using track-mounting or back-mounting sockets, providing flexibility for different installation requirements.
What certifications does the G7S-4A2B-E relay hold?
The G7S-4A2B-E relay is certified by multiple standards, including EN standards and VDE certification for electromechanical relays, UL508 for Industrial Control Equipment, and CSA C22.2 No.14 for Industrial Control Equipment.
What is the rated coil voltage for the G7S-4A2B-E relay?
The rated coil voltage for the G7S-4A2B-E relay is 24 VDC, which is the voltage required to activate the relay's switching mechanism.
How does the forcibly guided contact feature benefit my control system?
Forcibly guided contacts in the G7S-4A2B-E relay ensure that the contacts operate in unison, preventing simultaneous closure of NO and NC contacts. This feature is crucial for safety circuits as it provides reliable feedback on the state of the contacts, helping to prevent hazardous situations.
What is the ambient operating temperature range for the G7S-4A2B-E relay?
The G7S-4A2B-E relay can operate within an ambient temperature range of –25 to 70°C, making it suitable for a variety of industrial environments.
How can I ensure the correct wiring for the G7S-4A2B-E relay?
To ensure correct wiring for the G7S-4A2B-E relay, use the appropriate wire size, tighten terminal screws to the specified torque, and make sure to connect the coil polarity correctly. It's important to follow the terminal arrangement and internal connection diagram provided in the relay's datasheet.
What is the significance of the relay's compliance with EN61810-3?
Compliance with EN61810-3 indicates that the G7S-4A2B-E relay meets the requirements for relays with forcibly guided contacts, which are essential for applications where reliability and safety are of utmost importance. This standard ensures that the relay is suitable for use in safety-related parts of control systems.
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