Omron Industrial Relay - G2RN8851B
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Tameson UKOmron Industrial Relays Auxiliary Relay - G2r1sniac12sbyomb
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Product Information
Full details
This Omron Industrial Relay (model G2RN8851B) is designed for automation and control systems requiring reliable switching. It offers a 12V AC coil and a 10A switching current, suitable for general-purpose industrial applications. A key benefit is its integrated LED indicator for clear operational status. However, its PCB mount design means it's not suitable for direct panel mounting without a compatible socket.
All features
| Model Part Number | G2RN8851B |
|---|---|
| Brand | Omron |
Extended Product Information
FAQs
What is the coil voltage for the Omron G2RN8851B?
The nominal coil voltage is 12V AC at both 50Hz and 60Hz.
What is the maximum switching current?
The relay is rated for a maximum switching current of 10A.
Can this relay be used for DC loads?
Yes, it can be used for DC loads, but the maximum voltage and current ratings for DC must be checked against the specific datasheet, as they are typically lower than AC ratings.
Does this relay come with a socket?
No, the G2RN8851B is designed for direct PCB mounting and does not include a socket.
How many auxiliary contacts does it have?
It features 1 changeover (SPDT) auxiliary contact, meaning it has one normally open (NO) and one normally closed (NC) contact relative to a common terminal.
What does the LED indicator signify?
The LED indicator lights up when the relay coil is energized, visually confirming that the relay is active.
What are the physical dimensions?
The dimensions are approximately 13mm (Width) x 29mm (Depth) x 35.5mm (Height).
Troubleshooting
Relay does not energize when coil voltage is applied.
Verify that the coil voltage is exactly 12V AC and correctly applied to the coil terminals. Check for any breaks in the coil wiring or potential shorts.
Contacts do not switch when the relay is energized.
Ensure the correct voltage is supplied to the coil. Check that the load is wired correctly to the common and NO/NC terminals. Verify the load does not exceed the 10A switching current limit.
LED indicator is not lit.
Confirm that the coil voltage is correctly applied. The LED is typically powered by the coil voltage; if the coil is energized, the LED should light. If not, the relay may be faulty.
Intermittent operation or failure to switch.
Check for loose connections or solder joints on the PCB. Ensure the ambient temperature is within the operational limits. Vibrations can sometimes affect relay contacts; ensure secure mounting.
Pros and Cons
Pros
- Reliable switching for industrial control
- Integrated LED for status indication
- Compact form factor for space-saving designs
- Standard 12V AC coil voltage
- Suitable for moderate current loads up to 10A
Cons
- Requires PCB mounting; not a standalone panel-mount unit
- Limited to one changeover contact
- Requires specific voltage (12V AC) for coil activation
- Only suitable for DC or AC loads within its switching capacity
Setup, Compatibility & Care
Setup:
- Mounting: Solder the relay directly onto a compatible printed circuit board (PCB) following proper soldering techniques.
- Wiring: Connect the control circuit to the coil terminals (typically pins 1 and 2 for 12V AC) and the load circuit to the common, normally open (NO), and normally closed (NC) contacts (typically pins 5, 6, and 4 respectively, refer to datasheet for exact pinout).
- Power: Apply the specified 12V AC voltage to the coil terminals.
Compatibility:
- Coil Voltage: Compatible with 12V AC power sources. Ensure your control voltage matches precisely.
- Contact Rating: Suitable for loads up to 10A at the specified voltage (refer to datasheet for AC/DC voltage limits per contact).
- Environment: Designed for industrial environments. Avoid excessive moisture, dust, and extreme temperatures outside its operational range.
Care:
- Cleaning: Keep the relay clean by wiping with a dry, soft cloth. Avoid using solvents or abrasive cleaners.
- Inspection: Periodically inspect connections for corrosion or damage. Ensure the relay is securely mounted to the PCB.