Product Core Brief
- Model: 04220FL11232A
- Brand: GE (General Electric) — now under Emerson / GE Vernova depending on product line
- Series: ⚠️ Conflicting identification — listed as RXi Controller, Multilin 350 Motor Protection Relay, Series 90-30 Communications Co-processor, and UCSB Controller across different sources
- Core Function: Cannot be determined with certainty — see identification warning below
- Type: Disputed — see identification warning below
- Condition: ⚠️ Sourcing risk: high. Multiple incompatible product descriptions exist for this part number.
Installation & Configuration Guide
Phase 1 — Pre-Installation (est. 15 min)
First, identify what you actually have. This is not optional. De-energize the cabinet. Photograph the nameplate, model number, connector layout, and mounting style. Compare against your system documentation.
If the unit is a controller: Export the configuration and program. Back up IP addresses and communication parameters.
If the unit is a protection relay: Record all protection settings and CT ratios.
Phase 2 — Removal (est. 5 min)
Label all cables. Note slot position if rack-mounted. Release mounting hardware and pull the unit free. Inspect connectors for damage.
Phase 3 — Installation (est. 10 min)
ESD protection on. Verify the replacement matches physical form factor and connector pinout — not just the part number string. Seat the unit and secure mounting. Reconnect per photos.
Phase 4 — Power-On & Testing (est. 15 min)
Apply power. Observe status LEDs. For controller applications: verify communication with programming software, download the backed-up program. For relay applications: verify CT inputs and trip contact operation.
Troubleshooting Quick-Reference:
- No communication → verify backplane seating and slot addressing
- Incorrect readings → check CT wiring polarity or signal scaling
- ❗ Unit doesn’t fit → you have the wrong product identity. Stop. Verify the part number physically.
FAQ
Can I just drop this in and go?
No. Not safely. Search results show at least four conflicting product identities for this exact part number. A “controller” listing and a “current transformer” listing cannot both be correct . You must verify what your physical unit actually is before ordering.
What IS this part — a controller or a relay or a CT?
Honestly, I can’t tell you with confidence. The part number 04220FL11232A appears across incompatible product categories in supplier listings. This is a red flag for either a mislabeled part, a superseded part number reused across product lines, or data contamination in the surplus market.
My system uses GE Multilin relays — will this work?
If your system documentation identifies 04220FL11232A as a Multilin 350 or related relay, verify with GE/Emerson directly. One listing describes it as a Multilin 350 motor protection relay with Modbus RTU . But that conflicts with other sources.
What’s the safest way to source this?
Three steps: (1) Verify the physical part on your existing unit — photograph everything. (2) Send the photos and your system documentation to the seller and ask them to confirm form, fit, and function. (3) Request a written functional test report specific to your application. Do not accept a generic “tested good” claim.
Are there counterfeit or mislabeled units on the market?
Based on the conflicting listings, the risk is high. One source describes the same part number as an RXi controller, another as a Series 90-30 communications module . These are physically incompatible products. The surplus market for GE legacy parts is known for labeling errors.
