Product Details
The Foxboro P0903ZE, also cataloged as the P0903ZE Fieldbus Isolator Module, operates as a dedicated hardware component for electrical isolation and fieldbus signal conditioning within I/A Series platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | P0903ZE |
| Brand | Foxboro |
| Origin | USA |
| Weight | 0.30 kg (0.66 lbs) |
| Dimensions | Standard I/A Series Module Slot |
| Operating Temp | 0 to +60 deg C |
| Power Consumption | 3.5 W |
| Isolation Voltage | Galvanic Isolation between Field and Backplane Circuits |
Channel-to-Channel Isolation & Signal Conditioning
The Foxboro P0903ZE Fieldbus Isolator Module provides galvanic isolation across communication paths to mitigate ground potential differences and transient surges between field bus networks and controller backplanes. Designed for high noise immunity, the unit preserves 4-20 mA HART loop protocol parameters and digital communication stream integrity across multi-node topologies. By isolating internal backplane logic from external field wiring loops, the module eliminates channel-to-channel ground interference and maintains signal fidelity across industrial control loops.
Frequently Asked Questions
Q: Can the Foxboro P0903ZE module be replaced on an active baseplate without shutting down system power?
A: Yes, the P0903ZE supports hot-swapping on live I/A Series baseplates without causing data corruption or communication loss on adjacent backplane slots.
Q: Does the P0903ZE isolator require dedicated configuration software to establish fieldbus isolation?
A: No, the module functions as a transparent hardware isolation device operating directly at the physical layer without requiring software configuration or address assignment.
Field Installation Guidelines
- Confirm that the target baseplate slot keying matches the P0903ZE module alignment pins before insertion.
- Route fieldbus communication cables through grounded metal conduits separated from high-voltage power lines by at least 300 mm.
- Terminate signal cable shields to the cabinet ground bus bar at a single point to prevent ground loops.
- Fully seat the module into the baseplate header and tighten the retaining screws to ensure proper grounding and mechanical stability.
- Verify power supply bus voltages before applying field loop power.
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.





























