Product Details
Configured for signal interfacing between field instrumentation and I/A Series baseplates within Foxboro distributed control architectures, the Invensys Foxboro P0917MF (P0917MF Compression Termination Assembly) operates as a dedicated hardware component for 16-channel analog or digital signal routing. It executes secure physical and electrical signal transmission across industrial control loops up to 30 VDC.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | P0917MF |
| Brand | Invensys Foxboro |
| Origin | Consult Factory |
| Weight | 0.1 kg (0.22 lb) |
| Dimensions | 100 mm x 60 mm x 25 mm (3.94 in x 2.36 in x 0.98 in) |
| Operating Temp | -40 deg C to +70 deg C |
| Power Consumption | Passive Termination Module (0 W) |
| Number of Channels | 16 Channels |
| Signal Types | Analog or digital |
| Rated Voltage | Up to 30 VDC |
| Rated Current | Up to 2 A |
| Enclosure Material | Polycarbonate housing |
4-20 mA HART Loop Protocol and Isolation
The termination assembly maintains signal fidelity by providing robust terminal connections for multi-core field cables linking to control baseplates. Supporting standard 4-20 mA HART loop protocol loops and FOUNDATION Fieldbus / Profibus PA connectivity lines, it ensures proper channel-to-channel isolation and galvanic continuity. This arrangement prevents common-mode noise and ground loops from injecting transients into sensitive analog measurement channels or digital I/O buses.
Frequently Asked Questions
Q: Does the P0917MF assembly require an external power supply for operation?
A: No, it is a passive compression termination block and does not consume internal electrical power or require active power rails.
Q: What is the maximum voltage and current rating per channel?
A: Each of the 16 channels is rated for up to 30 VDC and up to 2 A of operating current.
Q: Is the unit designed for DIN rail mounting inside control cabinets?
A: Yes, it features a compact polycarbonate housing engineered for secure DIN rail installation within standard industrial enclosures.
Field Installation Guidelines
Mount the compression termination assembly firmly onto a standard DIN rail within a clean cabinet environment. Ensure that all field wiring is completely de-energized before stripping and inserting conductors into the compression terminals. Verify that terminal screws or spring clamps are torqued or locked securely to prevent high-resistance connections under industrial vibration, and terminate overall cable shields to the designated cabinet earth ground bar.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Understanding Safety Relays in Industrial Automation: Architecture, Operation, and Functional Safety
Standard electromechanical relays provide basic electrical isolation between low-voltage control circuits and high-power output loads. A traditional switching relay features a magnetic coil driving mechanical Common (COM), Normally-Open (NO), and Normally-Closed (NC) contacts. However, standard relays pose severe functional risks when deployed in critical safety interlock circuits. High current inrush or mechanical wear can weld contacts together permanently. If contact welding occurs in an emergency stop circuit, pressing the button fails to halt hazardous machinery movements. Consequently, global functional safety standards prohibit standard relays for critical machine guarding functions.
Mastering Wire Identification in Industrial Automation: The Power of Ferrules and Cross-Ferruling
Proper wire labeling forms the cornerstone of reliable control system installation and long-term maintenance. In complex industrial automation environments, technicians terminate thousands of conductor ends inside control panels, marshalling racks, and field junction boxes. Ferrules serve as individual tube-shaped sleeve markers slipped onto conductors before final termination. While technicians historically relied on pre-printed individual letter rings, modern control panel builders utilize automated ferrule printing machines. These thermal-transfer printers generate durable, single-sleeve heat-shrink tags directly matching approved wiring schematics, significantly accelerating cabinet assembly workflows.
Understanding Marshalling Cabinets in Industrial Automation and Control Systems
Marshalling cabinets serve as the crucial connection hub between field instruments and centralized processing units. In large DCS and PLC control system architectures, hundreds of multipair field cables run from local junction boxes to the central instrument equipment room. The marshalling cabinet houses field terminal blocks, surge arresters, intrinsic safety isolation barriers, and interposing relays. By segregating field field-wiring terminations from sensitive processor hardware, engineers protect expensive controller backplanes from high-voltage transients. Consequently, this modular separation dramatically streamlines maintenance workflows and simplifies system expansion.