Why Engineers Specify the IC200UER016 Relay Expansion Unit
When a VersaMax Micro installation runs out of relay outputs, the IC200UER016 is the practical answer. This GE Fanuc expansion unit adds 16 relay outputs to an existing controller through the VersaMax Micro expansion cable. It suits panels that must switch real-world loads without redesigning the whole rack.
Emerson now owns the line, and the original GE Intelligent Platforms design remains a familiar sight in oil, gas, and factory automation cabinets. If your project needs extra dry-contact capacity quickly, this module is a direct-fit option rather than a full controller replacement.
What the IC200UER016 Actually Gives You
Sixteen relay outputs on a 24 VDC supply means one compact block can drive indicator lamps, interposing relays, and small contactors. The included IC200CBL501 expansion cable removes a common ordering headache: the link between the base unit and the expansion block arrives with the module.
Because these are relay outputs, they isolate the control side from the field side. That isolation matters in plants where mixed voltages and noisy loads share a cabinet. The module is not a smart I/O block with network ports; it is a hard-wired expansion slice, which keeps commissioning simple.
Key Parameters
| Parameter | Value |
|---|---|
| Model | IC200UER016 |
| Series | VersaMax |
| Output points | 16 relay outputs |
| Power supply | 24 VDC |
| Expansion connection | VersaMax Micro expansion cable |
| Included cable | IC200CBL501 |
| Operating temperature | 0 to +60°C ambient |
| Storage temperature | -40 to +85°C |
| Original manufacturer | GE Fanuc / GE Intelligent Platforms |
| Current owner | Emerson |
Where This Module Earns Its Place
In upstream oil and gas, relay outputs often command valve pilots, alarm beacons, and pump status lamps. A 16-point block lets one Micro controller cover a skid without a second CPU.
In water treatment and packaging lines, the same module handles solenoid banks and motor starter coils. The 0 to +60°C ambient rating fits most climate-controlled electrical rooms, while the -40 to +85°C storage range survives unheated warehouses.
For retrofit work, the value is speed: adding an IC200UER016 keeps the existing program structure and wiring philosophy intact. That is usually cheaper than migrating to a different I/O family.
Installation Notes for Panel Builders
Mount the expansion block near the base unit and keep the IC200CBL501 cable routing away from drives and transformers. Confirm the 24 VDC supply is stable and referenced correctly before energizing outputs.
Relay outputs are mechanical, so plan for load inrush. Use interposing relays for high-current or high-cycle loads rather than pushing the contacts to their limit. Label each output clearly; a 16-point block is easy to miswire when documentation is thin.
Reliability and Lifecycle Planning
Relay contacts are the wear item. Inspect terminations periodically and watch for pitting on frequently switched channels. Keeping spares on the shelf shortens downtime when a contact finally fails.
Emerson’s official production status for this model is unverified. The unit is currently available through aftermarket channels, last verified in September 2026. Please verify current lifecycle status and availability with Oil AutoTech before ordering.
Oil AutoTech supports oil, gas, and industrial automation buyers with fast dispatch, worldwide, plus hands-on help matching expansion modules to existing VersaMax Micro systems. Contact Oil AutoTech today for pricing and availability.
