Allen Bradley 1746-OBP8 SLC 500 Digital DC Output Module
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8615305023276 | |||||||
| +8615305023276 | ||||||||
| 15305023276 | ||||||||
| Add to | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | Allen-Bradley 1746-OBP8 |
| Series | SLC 500 |
| Module Type | Digital DC Output Module |
| Output Type | Sourcing (DC) |
| Number of Outputs | 8 points |
| Output Voltage Range | 20.4–26.4 V DC |
| Load Voltage Range | 10–50 V DC |
| Current per Output | 1.0 A (typical), up to 0.5 A at higher temperature |
| Current per Module | 8.0 A at 30°C / 4.0 A at 60°C |
| Backplane Current (5V DC) | 0.135 A |
| On-state Voltage Drop | Max 1.2 V @ 1.0 A |
| Off-state Leakage Current | Max 1 mA |
| Surge Current | 3.0 A per point (10 ms) |
| Signal Delay | ON: 0.1 ms / OFF: 1.0 ms |
| Electrical Isolation | 1500 V AC (logic to field) |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity Range | 5%–95% non-condensing |
| Dimensions | 144.5 × 34.6 × 130.18 mm |
| Weight | 0.45 kg |
| Installation | SLC 500 chassis mounted module |
FAQ
1. What is the main function of the 1746-OBP8 module?
The 1746-OBP8 is used to provide digital DC output signals in an Allen-Bradley SLC 500 PLC system. It converts control logic signals from the CPU into switching outputs that can drive field devices such as relays, solenoids, indicator lamps, and small DC loads. It is designed for industrial automation applications where reliable on/off control of multiple DC loads is required.
2. What type of output does the 1746-OBP8 provide?
This module provides sourcing DC outputs, meaning it supplies positive voltage to the load when the output is turned ON. The load is typically connected between the module output and the system common (0V). This configuration is widely used in 24V DC industrial control systems.
3. Can the 1746-OBP8 drive inductive loads directly?
Yes, it can drive inductive loads such as relays and solenoid valves, but proper suppression is required. Flyback diodes, RC snubbers, or surge suppression devices should be used across inductive loads to protect the output transistors from voltage spikes generated during switching.
4. What happens if the output current exceeds the rated value?
If the current exceeds the rated per-point or per-module limits, the module may enter a protective state or suffer permanent damage. Overcurrent conditions can also cause overheating and reduced service life. Proper external fusing or electronic protection is recommended to prevent this.
5. How fast is the switching response of the module?
The module has a very fast response suitable for industrial control. The typical ON delay is around 0.1 ms and OFF delay is around 1.0 ms. This allows it to handle high-speed discrete control applications without noticeable lag in most automation processes.
6. Is the 1746-OBP8 isolated from the PLC backplane?
Yes, the module provides galvanic isolation between the field wiring and the PLC backplane electronics. This isolation helps protect the control system from electrical noise, voltage spikes, and ground potential differences commonly found in industrial environments.
7. What type of power supply is required for field devices?
Field devices connected to the 1746-OBP8 typically require an external 24V DC power supply within the 10–50V DC operating range. The module does not generate load power internally; it switches the externally supplied voltage to the outputs.
8. What are common causes of output failure or malfunction?
Common issues include overloading a channel beyond rated current, missing or incorrect suppression on inductive loads, wiring faults such as short circuits, and incorrect common wiring. Electrical noise or poor grounding can also lead to unstable output behavior in industrial environments.
Allen Bradley 1746-OBP8 SLC 500 Digital DC Output Module is in stock. Please contact us for a quick quote and competitive pricing.
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8615305023276 | |||||||
| +8615305023276 | ||||||||
| 13950166376 | ||||||||
| Add to | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Company Introduction
Xiamen Shengruite Trading Co., Ltd. is a company specializing in the supply of industrial PLC spare parts.
We provide high-quality PLC spare parts to customers in the global manufacturing, energy and power, chemical and other fields.
Since its establishment in 2011, after 13 years of rapid development, the cumulative global shipments have reached 223,650 pieces, with an annual output value of US$50 million.
Successfully served more than 500 customers in more than 100 countries and regions including Saudi Arabia, UAE, the United States, Europe, Africa, and Southeast Asia
Our Mission
Provide customers with the best quality PLC spare parts and the fastest delivery service to ensure that their industrial automation systems are always in the best operating condition.
We provide a 1-year warranty service, and we support returns and exchanges for any issues to ensure your rights and interests are fully protected.
We can provide detailed product images upon request, and our team can arrange warehouse photos for confirmation to ensure you have all the information you need before making a purchase.
Shipping times vary depending on your location. With the support of our 16 global warehouses, we strive to deliver orders as quickly as possible. Contact us to get an estimated delivery time for your specific location.
The minimum order quantity (MOQ) is typically one unit. However, for larger orders, please contact us for potential discounts and pricing details.
Yes, we offer competitive pricing for bulk purchases. Please reach out to our sales team with the specifics of your order to receive a custom quote.
We accept various payment methods for wholesale orders, including bank transfers (T/T), letters of credit, and other options upon agreement. For large transactions, please contact us directly for payment terms.
Yes, we offer flexible ordering options for both small and large quantities. Whether youre looking for a single unit or a large batch, we can accommodate your needs.
We occasionally offer promotional discounts for new wholesale customers. Contact us to learn more about any current offers available for first-time buyers.
If you are unsure of compatibility with your existing setup please provide your system details and our support team can verify compatibility prior to purchase.
Returns are accepted within 30 days if the product is unused, unopened, and in its original packaging. Please note that return shipping and associated costs are the buyer\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’s responsibility.
Yes, we offer technical support for the installation and integration of our products. Our team can assist with setup, configuration, and troubleshooting to ensure a smooth installation.
