Eaton Industrial Time Delay Relay - ETR4-11-A - 031882
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Product Information
Full details
This Eaton ETR4-11-A electronic time delay relay is designed for industrial applications requiring precise timing control in safety-critical systems such as access control and staff protection. It offers a wide adjustable delay range from 0.05 seconds to 100 hours and is compatible with a broad 24-240V AC/DC power supply. While its robust construction ensures a long mechanical lifespan, users should be aware of its single-piece packaging and specific mounting requirements.
All features
| Series | ETR4 |
|---|---|
| Model Part Number | 031882 |
| Brand | Eaton |
Extended Product Information
FAQs
What is the maximum switching current of this relay?
The Eaton ETR4-11-A has a maximum switching current of 3A.
Can this relay be used with a 12V power supply?
No, the minimum operating voltage is 24V AC/DC. A 12V supply is below the operational range.
What type of timer function does this relay offer?
This relay offers a single ON delay timer function.
How is the time delay adjusted?
The time delay is adjusted using the integral controls on the front of the relay, with selectable increments for hours and seconds.
What are the physical dimensions of the relay?
The relay measures 23 x 23 x 82 mm and has a width of 22.5mm for DIN rail mounting.
Does this relay comply with safety standards?
Yes, it is built to IEC/EN 61812-1 and VDE 0435 standards.
How many connection terminals does it have?
It utilizes screw terminal connections for wiring.
Troubleshooting
Relay does not energize or activate the output.
Verify the power supply is connected correctly and within the 24-240V AC/DC range. Ensure the control input signal is present and at the correct voltage level. Check screw terminal connections for tightness.
Timing is inaccurate or inconsistent.
Confirm the time delay has been set correctly using the integral controls. Ensure the operating temperature is within the specified limits. Check for any external electrical noise that might interfere with the signal.
Output contacts are stuck open or closed.
Check if the load connected to the output contacts exceeds the maximum current rating of 3A. Inspect the wiring to the output terminals. If the issue persists, the relay may require replacement.
Relay does not reset after timing out.
Ensure the control input signal is removed as per the operating mode. Verify that the power supply remains stable throughout the operation cycle.
Pros and Cons
Pros
- Wide adjustable time range for flexible application.
- Broad voltage compatibility (24-240V AC/DC) simplifies integration.
- Compact 22.5mm width saves valuable control panel space.
- High mechanical lifespan ensures reliability over millions of cycles.
- Conforms to key industrial safety and performance standards.
Cons
- Single ON delay function may not suit all timing requirements.
- Requires specific DIN rail mounting; not suitable for surface mount without adaptation.
- Instructions may require a technical understanding for optimal setup.
- Sold as a single unit, potentially increasing cost for multi-relay needs.
Setup, Compatibility & Care
Setup: The ETR4-11-A is designed for DIN rail mounting. Ensure the DIN rail is securely installed in your control cabinet. Connect the power supply (24-240V AC/DC) to the designated terminals, observing correct polarity if using DC. Wire the control input and the output contacts according to your circuit diagram. Adjust the desired time delay using the integrated controls, noting the increment selection (Hours/Seconds).
Compatibility: This relay is compatible with AC and DC power supplies within the 24-240V range. Its output contacts can handle up to 3A maximum current. It is designed to integrate into standard industrial control panels and systems.
Care: Keep the relay clean and free from dust and moisture. Avoid operating it outside its specified voltage and current ratings. Periodically check connections for tightness. No internal maintenance is typically required due to its solid-state electronic design. Cleaning should be done with a dry or slightly damp cloth only; never use solvents.