Description
ABB 1SVR011718R2500 | CC-E I/I Signal Converter | 4–20 mA Signal Isolation
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | ABB |
| Product ID | 1SVR011718R2500 |
| Extended Product Type | CC-E I/I |
| Product Function | Standard-signal converter |
| Input Signal | 4–20 mA |
| Output Signal | 4–20 mA |
| Rated Control Supply | 24 VDC |
| Electrical Isolation | 3-way |
| Mounting | DIN rail |
| Protection Class | IP20 |
| Product Dimensions | 22.5 × 75 × 107 mm |
| Net Weight | Approx. 0.085 kg |
| Status | Withdrawn from offer in some catalogs |
ABB’s own product information identifies the unit as a CC-E I/I single-function standard analog signal converter and specifies the 24 VDC supply, 4–20 mA input, 4–20 mA output, and 3-way electrical isolation.
Product Introduction
The ABB 1SVR011718R2500 CC-E I/I is a DIN-rail analog signal converter designed for 4–20 mA instrumentation loops. Its 3-way electrical isolation separates the signal paths and supply circuit, making it useful where ground-potential differences, loop interaction, or electrical separation between field instrumentation and control equipment must be addressed.
The fixed I/I configuration is important during replacement. Unlike the configurable CC-E variants, this model is specifically intended for 4–20 mA input to 4–20 mA output service. The 24 VDC control supply and terminal arrangement should be checked against the existing installation before ordering.
1SVR011718R2500
Application Scenarios & Field Pitfalls — The Engineer’s Perspective
Engineering Pain Point
A 4–20 mA loop may look straightforward until two devices share a reference, a ground potential develops between cabinets, or an instrument signal becomes unstable after a control-system modification. The CC-E I/I provides electrical separation between the signal circuits and supply, giving engineers a dedicated interface rather than relying on an improvised wiring solution.
Typical Applications
- PLC analog input isolation — Separates field transmitters from PLC/DCS analog input circuits.
- DCS signal conditioning — Provides an isolated 4–20 mA interface between instrumentation and control hardware.
- Cabinet signal distribution — Useful where separate electrical domains need to exchange standard current signals.
- Legacy system maintenance — Suitable when an existing control cabinet was designed around the CC-E signal-converter family.
Technical Pitfalls
- Do not confuse I/I with I/V or V/I versions. ABB’s CC-E family contains several signal-conversion variants. The complete 1SVR011718R2500 identifier should be matched before substitution. ABB’s catalog separately lists I/V, V/I, and V/V variants.
- Verify the loop architecture. A 4–20 mA input/output does not by itself tell you whether the surrounding circuit is sourcing or sinking current. Check the PLC/DCS input and field transmitter wiring before commissioning.
- Check the 24 VDC supply. This is a powered signal converter, not a passive signal isolator. The control supply must be available at the cabinet terminal block.
- Allow for IP20 installation conditions. The module is intended for protected control-cabinet environments rather than direct field exposure.
- Do not replace by physical dimensions alone. The 22.5 mm housing is compact, but terminal assignment and isolation architecture matter more than enclosure size.
- Check obsolete-stock condition carefully. Current distributor listings identify the part as withdrawn from offer. For legacy DCS/PLC installations, confirm whether the available unit is unused surplus, refurbished, or previously installed before placing a critical-spares order.
Related Products
- ABB 1SVR011717R1400 — CC-E I/I variant with the same general signal-converter family; verify exact electrical characteristics before substitution.
- ABB 1SVR011713R1000 — CC-E I/V signal converter; changes the signal-conversion function and is not a direct I/I replacement.
- ABB 1SVR011714R1100 — CC-E I/I family member with a different ordering configuration.
- ABB 1SVR011716R1300 — CC-E I/V family member.
- ABB 1SVR011719R2600 — CC-E V/V signal converter; different input/output signal type.
- ABB CC-E/STD — Configurable CC-E signal-converter variant; configuration requirements differ from the fixed-function I/I model.
Procurement Note
For a plant replacement, specify ABB 1SVR011718R2500 / CC-E I/I rather than simply ordering a “CC-E signal converter.” Confirm the 4–20 mA input, 4–20 mA output, 24 VDC supply, terminal arrangement, and isolation requirement against the installed unit. For obsolete-system spares, retaining the exact original part number is usually safer than substituting a superficially similar signal conditioner.
