Description
Note: Many products are not yet listed. Please contact us for more product information. Our supply channels are constantly expanding, and we currently have 20 stable shared supply channels. Please confirm the model, product, price, and all other necessary information with customer service before placing an order. We offer new, refurbished, and used products, and prices are adjusted according to the year of the item you require.
3. Key Technical Specifications
| Parameter | Value |
|---|---|
| Model | 8920-PS-DC |
| Product Type | IS Module Power Supply |
| Input Voltage | 24 V DC nominal (typical plant supply) |
| Output Voltage | 12 V DC |
| Output Current | 5 A |
| Primary Use | Power for 2/1 (intrinsically safe) I/O modules |
| Redundancy Support | Load sharing and n+1 redundancy |
| Mounting | Dedicated carrier (8724-CA-PS) |
| System Compatibility | MTL8000 / PAC8000 series |
| Hazardous Area | Designed for IS field wiring applications |
4. Product Introduction (Anti-Template)
The MTL 8920-PS-DC is a dedicated power supply module that converts a standard 24 V DC plant supply into a regulated 12 V DC output for powering intrinsically safe (2/1) I/O modules in the MTL8000 / PAC8000 system. It mounts on its own carrier (8724-CA-PS) and is specifically intended for nodes that include IS field wiring.
With a 5 A capacity, a single module can typically support between six and twenty I/O modules depending on the mix of module types. Multiple 8920-PS-DC units can be used in parallel for load sharing, and an additional module can be added for n+1 redundancy. Failure of a power supply is reported to the Bus Interface Module, allowing the system to maintain awareness of power status. The module is a key component in hazardous-area installations where intrinsically safe power distribution is required.
8920-PS-DC
8920-PS-DC
8920-PS-DC
8920-PS-DC
8920-PS-DC
5. QC, Procurement & Logistics SOP
- Inbound Verification – Confirm full model number (8920-PS-DC or MTL8920-PS-DC), revision markings, connector condition, and carrier compatibility. Photograph all labels.
- Functional Testing – Apply 24 V DC input and verify 12 V DC output and status indication where test equipment is available.
- QA & Packaging – Protect the connectors and terminals, clean the module, and pack in anti-static protective packaging.
- Global Logistics & Export Compliance – Classify under the correct HS code for industrial power supply modules. Packaging must protect against electrostatic discharge; export documentation is prepared to minimize customs delays.
6. Technical Pitfalls & Integration Warnings
Carrier Requirement – The module must be mounted on the correct carrier (8724-CA-PS). Installing it on an incorrect carrier prevents proper operation.
Load Calculation – Calculate the total current draw of all connected IS modules. Exceeding 5 A per supply requires additional paralleled units.
Redundancy Wiring – When using multiple supplies for redundancy or load sharing, follow MTL guidelines for paralleling to avoid circulating currents or uneven loading.
Hazardous Area Rules – Maintain all intrinsic safety segregation and entity parameters. Incorrect installation can invalidate the IS certification of the node.
7. Frequently Asked Questions (FAQ)
What is the realistic global lead time for a verified 8920-PS-DC?
As a specialized IS power module, availability depends on surplus stock. Typical lead time after verification is 5–15 business days plus standard shipping.
What is the function of the 8920-PS-DC?
It converts 24 V DC to 12 V DC to power intrinsically safe (2/1) I/O modules in MTL8000 / PAC8000 systems.
What are the input and output ratings?
Input: 24 V DC nominal. Output: 12 V DC at 5 A.
Can multiple units be used together?
Yes. They support load sharing and n+1 redundancy.
What carrier does it require?
The dedicated 8724-CA-PS power supply carrier.
Is the module still in production?
It belongs to the MTL8000 / PAC8000 family. Availability is primarily through surplus channels for existing installations.
What should be confirmed before ordering a replacement?
Exact model number, carrier type in the existing node, total IS module load, and whether redundancy is required.
