SR-508 Yokogawa Safety Relay Module
$ 95.56
Ready to Ship
Delivery & Return
Last Updated: [10 January 2026]
Thank you for shopping at Shop QJS Ltd. At privehuislust.nl, we strive for 100% customer satisfaction and aim to deliver high-quality fine jewellery that meets your expectations. This Refund & Return Policy outlines your rights and responsibilities when returning items or requesting refunds.
- Eligibility for Returns
1.1 Standard Products:
- You may request a return or refund for eligible items within 30 days of the delivery date.
- To qualify, items must be unused, unworn, unaltered, undamaged, and returned in their original packaging with all certificates and tags intact.
- Please retain your proof of purchase.
1.2 Custom or Bespoke Jewellery:
- Custom-made or personalized jewellery created specifically for you cannot be returned or refunded because it is made to order.
- However, if a custom item does not fit, we offer one complimentary resizing within 15 days of delivery.
2. How to Initiate a Return
To start a return or refund request:
- Contact our Customer Support Team within the return period:
- Email: [email protected]
- Phone: +44-755-5589-664
- Provide:
- Your order number
- Reason for return
- Photos of the product (if damaged or incorrect)
Once your return request is approved, we will provide detailed return instructions including how and where to send the item.
3. Return Conditions
- Items must be shipped back in the original packaging with all accessories, warranty cards, certificates, and tags.
- Returned products that are used, altered, damaged, or missing parts will not be accepted and may be returned to you at your expense.
- Jewellery must be carefully packaged to prevent damage during transit.
4. Refunds
4.1 Processing Time:
- Approved refunds will be processed back to the original payment method within 7–14 business days of receiving the returned item.
- The time for the refunded amount to appear in your account may vary depending on your bank or payment provider.
4.2 Refund Amount:
- The refund will be for the purchase price of the item only.
- Shipping and handling charges are non-refundable unless the return is due to our error (e.g., defective or incorrect item).
4.3 Non-Refundable Items:
- Custom, bespoke, personalized, or engraved jewellery (except in case of manufacturing defect).
- Gifts, gift vouchers, or items marked “final sale”.
5. Exchanges
If you wish to exchange an item (e.g., for a different size or design), please indicate this in your return request.
Exchanges are subject to availability. If the desired item is out of stock, we will issue a refund following the above process.
6. Defective or Incorrect Items
If the item you received is defective, damaged, or not what you ordered:
- Notify us within 7 days of delivery with photos and a brief description.
- We will cover the cost of return shipping and offer a full refund or replacement at no extra cost.
7. Cancellation Before Dispatch
If you wish to cancel an order before it has been shipped, please contact us immediately. If the order is not yet dispatched, we will cancel and issue a full refund to your original payment method.
8. Contact Us
For any questions about returns, refunds, or exchanges, please contact our Customer Support:
Email: [email protected] Phone: +44-755-5589-664 Hours: Monday – Friday, 09:00 – 20:00 (UTC)
Ring Size Guide
| Sr. No | UK Size | USA Size |
| 1 | J | 4.75 |
| 2 | K | 5.25 |
| 3 | L | 5.75 |
| 4 | M | 6.25 |
| 5 | N | 6.75 |
| 6 | O | 7.25 |
| 7 | P | 7.50 |
| 8 | Q | 8.25 |
| 9 | R | 8.50 |
| 10 | S | 9.00 |
| 11 | T | 9.50 |
| 12 | U | 10.00 |
| 13 | V | 10.50 |
| 14 | W | 11.00 |
Description SR-508 Yokogawa Safety Relay Module Product Dimensions： Product Description (Detailed Explanation) The SR-508-00 acts as a safety barrier between control logic (such as a PLC or Safety System) and field-mounted final control elements. Its primary function is to ensure a safe shutdown in the event of an emergency or system failure. For example, it is frequently used to cut off the fuel supply to industrial incinerators or power down hazardous machinery. The module features safe isolation between the input (coil side) and the output (contact side), meeting strict overvoltage standards. It is built using a diverse relay architecture to prevent systematic failures and is certified for use in high-integrity safety loops (up to SIL4 in specific configurations). Product Parameters (Technical Specifications) Parameter Category Specification Number of Channels 1 Channel Input Voltage 24V DC (-15% to 20%) Input Current 35 mA – 40 mA Output Contact Type Normally Open (NO) Contact Material Gold-plated over silver alloy Maximum Load (AC) 250V AC, 2A ($\cos \phi > 0.5$) Maximum Load (DC) 30V DC / 2A; 127V DC / 0.2A Isolation Strength 4 kVrms (1 min); 6 kV Surge Response Time On: 3–10 ms / Off: 5–7 ms Mechanical Life 30 million operations Mounting 35mm DIN Rail (IP20 Protection) Product Advantages (Key Benefits) Extreme Safety Standards: Designed to meet SIL4 requirements, providing the highest level of risk reduction for industrial processes. Robust Isolation: Excellent galvanic isolation (4 kV) ensures that high-voltage surges on the output side do not damage the sensitive low-voltage control electronics. Diagnostic Visibility: Equipped with a bright Red LED indicator on the front panel, allowing maintenance personnel to verify the relay status at a glance. Field-Proven Reliability: Built with high-quality components and gold-plated contacts to ensure reliable switching even after long periods of inactivity (preventing contact oxidation). Compact Design: The slim, DIN-rail mountable housing saves significant space in high-density control cabinets. Precautions (Important Notes) Terminal Usage: Terminals 5 and 8 are designated as test terminals and must not be used during normal operational mode. Cyclic Testing: To maintain its safety integrity (SIL rating), the module must be tested upon every system power-up and undergo a full functional check every two years. Replacement Policy: Internal components are not user-serviceable. Any repair or component replacement must be performed by the manufacturer to comply with TÜV safety restrictions. Environmental Limits: While rugged, the unit should be installed in an IP54 or higher enclosure if used in environments with conductive dust or high moisture. Product Applications (Typical Use Cases) Emergency Shutdown Systems (ESD): Integrated into the safety logic of oil and gas platforms to trigger immediate process isolation. Burner Management Systems (BMS): Controlling the main fuel shut-off valves for industrial boilers and incinerators to prevent explosions. Fire & Gas Systems: Interfacing between fire detectors and suppression equipment (like foam deluges or CO2 systems). High-Pressure Interlocks: Used in chemical reactors to vent pressure or stop pumps when critical safety thresholds are exceeded. Machinery Guarding: Providing a safe interface for light curtains and E-stop circuits in high-speed manufacturing lines. Please make an inquiry for more models： YOKOGAWA F3SV64 YOKOGAWA FAW05-5RO YOKOGAWA PW302-S4 YOKOGAWA PW401-S2 YOKOGAWA PW441-10 YOKOGAWA PW441-50 YOKOGAWA PW442-10 YOKOGAWA PW481-01 YOKOGAWA PW481-10 YOKOGAWA PW481-11 YOKOGAWA PW481-50 YOKOGAWA PW482-11 YOKOGAWA PW484-10 YOKOGAWA CP451 YOKOGAWA LR4220E YOKOGAWA ST6A YOKOGAWA MS31*A YOKOGAWA MX6*A YOKOGAWA NC4*B YOKOGAWA PS31*A YOKOGAWA MAC2*B YOKOGAWA FCA4*B YOKOGAWA VM1*D YOKOGAWA LC82*A YOKOGAWA 2150S YOKOGAWA ST6*A YOKOGAWA C2L315601-1111 YOKOGAWA DM1A-050G YOKOGAWA MW100-E-1R YOKOGAWA AV8C-A-4-EA/4P
