Quick Answer: What replaced EKI-1221CI-CE?
Discontinued: EKI-1221CI-CE | Replacement: EKI-1221CI-DE
Why B+B SMARTWORX Discontinued the EKI-1221CI-CE
B+B SMARTWORX has announced an end-of-life process for EKI-1221CI-CE, but the currently available research does not include an official manufacturer notice explaining why the part is being phased out. In other words, EKI-1221CI-CE is in EOL IN PROGRESS status, meaning it is still available for purchase while discontinuation has been announced.
At this time, no official EOL date has been published in the research provided, and no formal reason for the EKI-1221CI-CE discontinuation can be confirmed. The available results also do not include a manufacturer statement confirming whether the change is related to lifecycle management, regional part consolidation, regulatory updates, or portfolio simplification.
The research does show that the wider EKI-1221 series has documented surge protection characteristics in published datasheet material, and it also shows at least one related variant, EKI-1221CI-BE, listed by distribution sources as scheduled for obsolescence. That supports the view that B+B SMARTWORX may be managing the lifecycle of several EKI-1221CI variants, but it does not provide a model-specific reason for EKI-1221CI-CE.
For procurement teams, the practical takeaway is straightforward: if you currently specify EKI-1221CI-CE, you should plan around the announced transition to EKI-1221CI-DE while stock remains available. Because the manufacturer has not published a confirmed end date in the supplied research, buyers should avoid waiting until inventory becomes constrained.
What's New in the EKI-1221CI-DE
Replacement status is the main confirmed update
Based on the product transition information provided for this article, EKI-1221CI-DE should be treated as the replacement part for EKI-1221CI-CE. However, the research findings do not include official manufacturer documentation that verifies EKI-1221CI-DE as the formal successor. Because of that, IT buyers should treat the replacement mapping as current commercial guidance and confirm project-critical requirements before placing large-volume orders.
Technical differences are not confirmed in the available research
No verified technical comparison between EKI-1221CI-CE and EKI-1221CI-DE appears in the provided search results. The research explicitly states that specifications for the CE and DE variants were not available in a way that would allow a feature-by-feature comparison. That means no responsible claim can be made here about performance changes, interface changes, certification updates, packaging differences, or mechanical revisions between EKI-1221CI-CE and EKI-1221CI-DE.
Known series-level information
The available datasheet information for the broader EKI-1221/CI/I series indicates support for surge protection rated at line-to-line 1 kV and line-to-ground 2 kV. This is useful context for buyers evaluating the EKI-1221 family, but it should not be presented as a confirmed differentiator between EKI-1221CI-CE and EKI-1221CI-DE because the research does not break that data out by these exact part numbers.
What buyers should verify before standardizing on EKI-1221CI-DE
- Whether EKI-1221CI-DE is the official B+B SMARTWORX replacement for EKI-1221CI-CE
- Whether EKI-1221CI-DE maintains the same regional approvals, certifications, or market designation as EKI-1221CI-CE
- Whether there are any changes to installation, ordering, labeling, or documentation
- Current lead time and stock position for EKI-1221CI-DE during the EOL transition period
At-a-Glance Comparison
| Feature | EKI-1221CI-CE | EKI-1221CI-DE |
|---|---|---|
| Manufacturer | B+B SMARTWORX | B+B SMARTWORX |
| Lifecycle status | EOL in progress | Replacement part |
| Availability | Still available while discontinuation is underway | Available as the designated replacement in supplied product data |
| Official EOL date | Not announced | Not applicable in supplied research |
| Reason for discontinuation | Not announced | Not applicable in supplied research |
| Official replacement confirmation in provided research | Not available | Not available |
| Verified technical differences | Not confirmed in available research | Not confirmed in available research |
| Series-level surge protection context | EKI-1221 series datasheet references 1 kV line-to-line, 2 kV line-to-ground | EKI-1221 series datasheet references 1 kV line-to-line, 2 kV line-to-ground |
Upgrade Checklist
- Review every BOM, quote, and internal standard that currently lists EKI-1221CI-CE.
- Update purchasing records to show EKI-1221CI-CE as EOL in progress and EKI-1221CI-DE as the planned replacement.
- Confirm with B+B SMARTWORX or authorized supply channels whether EKI-1221CI-DE is the official replacement for your application.
- Verify there are no certification, regional, or documentation differences that could affect compliance or deployment.
- Check stock availability for both EKI-1221CI-CE and EKI-1221CI-DE if you need bridge inventory during the transition.
- For installed base support, document any fielded systems still using EKI-1221CI-CE so future service orders can be converted cleanly.
- If your project depends on exact electrical or mechanical equivalency, request the latest manufacturer documentation before approving EKI-1221CI-DE for production use.
- Place orders for EKI-1221CI-DE early if the EKI-1221CI-CE part number is embedded in long-term maintenance contracts or scheduled rollout plans.
Bottom Line
EKI-1221CI-CE from B+B SMARTWORX is in EOL IN PROGRESS status, and EKI-1221CI-DE is the replacement part identified in the supplied product data. What remains unconfirmed in the available research is the official manufacturer replacement notice, the reason for discontinuation, the EOL date, and any technical differences between EKI-1221CI-CE and EKI-1221CI-DE.
For most buyers, the right next step is to transition planning now, validate application requirements, and secure EKI-1221CI-DE before EKI-1221CI-CE availability tightens.
Ready to switch? Shop EKI-1221CI-DE →
