Designed to optimize power distribution within modular DIN-rail systems, the Weidmuller 8965500000 ACT20-FEED-IN-PRO-S provides a centralized feed-in point for the ACT20 series and CH20M bus system. This high-efficiency module simplifies cabinet wiring by distributing supply voltage directly to adjacent modules via the rail bus, reducing point-to-point wiring and minimizing installation time.
Key Features
- High efficiency rating exceeding 97.9% to minimize thermal dissipation inside the enclosure.
- Wide input voltage range of 19.2 V DC to 31.2 V DC for compatibility with standard 24 V DC industrial power supplies.
- Integrated screw connection technology ensuring secure, vibration-resistant field wiring.
- Supports collective error signaling and status monitoring for enhanced system diagnostics.
- Compact 22.5 mm width matching standard ACT20 series form factor to optimize DIN-rail space.
Industrial Applications
- Centralized power distribution in industrial automation control panels.
- Signal conditioning and isolation racks utilizing the CH20M rail bus system.
- Process industries requiring dense, modular DIN-rail instrument configurations.
- Power grouping and segment isolation in complex PLC and DCS I/O systems.
Technical Specifications
| Parameter |
Specification Value |
| Manufacturer |
Weidmuller |
| Article Number (SKU) |
8965500000 |
| Model Designation |
ACT20-FEED-IN-PRO-S |
| Product Type |
Power Feed-In Module |
| Supply Voltage Range |
19.2 to 31.2 V DC |
| Power Consumption |
<= 2.0 W |
| Efficiency |
> 97.9% |
| Connection Type |
Screw connection |
| Protection Degree |
IP20 |
| Operating Temperature |
-20 to +60 degC |
| Storage Temperature |
-20 to +85 degC |
| Relative Humidity |
0% to 95% (non-condensing) |
| Dimensions (H x W x D) |
119.2 mm x 22.5 mm x 113.6 mm |
| Net Weight |
0.140 kg |
| Shipping Weight |
1.20 kg (including protective packaging) |
Connections and Interfaces
| Terminal / Port |
Functional Assignment |
| Input + / - |
Primary 24 V DC supply input connection |
| CH20M Bus Interface |
Direct power distribution contacts to the DIN-rail bus |
| Status Relay |
Collective error message output (normally closed / normally open contact) |
Empirical Engineering Insights
Alternative Models & Compatibility
The ACT20-FEED-IN-PRO-S is fully compatible with all Weidmuller ACT20 series signal converters and isolators that utilize the CH20M DIN-rail bus. It can replace standard passive feed-in terminals when active collective error monitoring and diagnostic feedback are required for the control system.
Application Pitfalls & Engineering Notes
Ensure that the total current drawn by all modules connected to the CH20M bus does not exceed the maximum bus current rating (typically 4 A). If your module configuration exceeds this limit, you must install an additional feed-in module to segment the power distribution groups.
Commissioning & Wiring Tips
When wiring the collective error relay, integrate the contact into your PLC's safety loop or alarm input. This ensures that any power loss or module fault on the CH20M bus is instantly flagged in the control room, reducing troubleshooting downtime.
Installation Guidelines
CRITICAL WARNING
De-energize all primary and auxiliary power sources before mounting, removing, or wiring the module. Ensure the DIN-rail bus contacts are completely clean and properly aligned before snapping the unit onto the rail to prevent physical damage to the contact pins.
1
Mount the CH20M DIN-rail bus elements onto the TS 35 DIN rail if they are not already installed.
2
Align the ACT20-FEED-IN-PRO-S with the rail and snap it firmly into place, ensuring the bus connector pins seat correctly.
3
Connect the 24 V DC input supply lines to the designated screw terminals using the correct wire gauge and torque specifications.
4
Wire the collective error relay output to your supervisory control system for active diagnostic monitoring.