Description
Product Name: 810-A04CR Allen Bradley Processor module
Product details:
The Allen-Bradley 810-A04CR appears to be a discontinued magnetic overload relay, specifically part of the 810 Series. Based on product information from various suppliers, here are the detailed specifications, advantages, considerations, and applications.
⚡ Allen-Bradley 810-A04CR Product Details
The 810-A04CR is identified as an Inverse Time Magnetic Overload Relay. It is an electromechanical device designed to protect electric motors and circuits from damage due to excessive current (overload).
Product Parameters (Specifications)
| Parameter | Value |
| Series | 810A |
| Type | Magnetic Overload Relay (Current Relay) |
| Poles | Typically 3-Pole (Implied by overload relay application) |
| Continuous Current Rating | 6 Amps (6 A Continuous) |
| Voltage Rating | 600 VAC |
| Time Delay | Inverse Time Delay (The higher the overload current, the faster the trip) |
| Reset | Manual Reset |
| Output Contact Configuration | 1 NC (1 Normally Closed) |
| Dashpot Fluid | Clear (often indicates the specific time-delay curve) |
| Status | Discontinued by Manufacturer (Date around 2009) |
Product Advantages (General for Magnetic Overload Relays)
While this specific model is discontinued, the inherent advantages of this type of magnetic overload relay are:
- Fast Response to High Overloads: Due to the magnetic action, it trips very quickly on high-level overloads (like short-circuit conditions, though it’s primarily an overload device), offering rapid protection.
- Insensitive to Ambient Temperature: Unlike thermal overload relays, magnetic relays are not affected by changes in the surrounding environment’s temperature, ensuring consistent trip characteristics regardless of the installation location’s heat or cold.
- Adjustable/Precise Trip Settings: The inverse time delay is often achieved via a dashpot mechanism (fluid-filled), allowing for consistent and predictable time-current curves.
Precautions (Important Considerations)
- Discontinued Status: Since the product is discontinued, obtaining new units from the manufacturer is impossible. Replacements must come from surplus stock, re-certified items, or repairs.
- Warranty: The original manufacturer’s warranty does not apply. Any warranty will be provided by the third-party seller or repair service (e.g., 2-year warranty from a re-seller).
- Manual Reset: The relay requires manual intervention (pressing a reset button) after a trip, which ensures the cause of the overload is investigated before restarting the equipment.
- Replacement/Upgrade: For new installations or replacements, it is highly recommended to seek a modern, equivalent product from Allen-Bradley or another manufacturer that is actively supported.
Product Applications
Overload relays like the 810-A04CR are essential safety components used to protect motor control circuits.
- Motor Protection: Primarily used to protect single-phase and three-phase AC electric motors from running currents that exceed their safe operating limit.
- Motor Starter Circuits: Typically integrated into a motor starter assembly (contactor and overload relay) to stop the motor’s power supply when an overload occurs.
- Industrial Machinery: Found in various industrial environments controlling pumps, fans, compressors, conveyors, and other motor-driven equipment where consistent and temperature-independent protection is crucial.
Advantages: Foxboro, OVATION, TRICONEX, Allen-Bradley, ABB, Motorola, Siemens Moore, Ge Fanuc, Woodward, Bently Nevada and other major import brands!
We have the same series of models in stock. If you don’t find the model you need, please contact us and we will provide you with an official quotation！
Colour：new Warranty: 12 months
Lead Time：3-day working day Country of origin: Sweden
Price: Please contact us Product weight：0.515kg
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
The following are other related models. If you can’t find the product you need, please contact us. Thank you
| 440F-M0727DYNN | Allen‑Bradley |
| 440F-M0921DYNN | Allen‑Bradley |
| 440L-R4F0020-Q | Allen‑Bradley |
| 440L-R4F1570-Q | Allen‑Bradley |
| 440T-MDALE100B0C | Allen‑Bradley |
| 440T-MDALE100B0D | Allen‑Bradley |
| 440T-MDALE10AAAB | Allen‑Bradley |
| 440T-MDALE10ABAC | Allen‑Bradley |
| 440T-MDALE10ABAD | Allen‑Bradley |
| 440T-MDALE10APAR | Allen‑Bradley |
| 440T-MDALE10BABB | Allen‑Bradley |
JUSTWELL PTE. LTD. sells new and discontinued products, and purchases such specialty products through independent channels. JUSTWELL PTE. LTD. is not an authorized distributor, distributor, or representative of the featured products on this website. All product names/images, trademarks, brands, and logos used on this website are the property of their respective owners. Product descriptions, descriptions, or sales with these name images, trademarks, brands, and logos are for identification purposes only and do not imply any association or authorization with any rights holders.
This article is from the official website of JUSTWELL PTE. LTD. If reprinted, please attach this link:https://www.justwellcenter.com/
All other brand or product names mentioned in this document may be trademarks or registered trademarks of their respective holders.
