SL1 & SL2 Obsolescence
Bulletins SL1 & SL2 to be phased out
To make it easier and more convenient for customers to identify and select the protection solutions they need, we are streamlining our portfolio by phasing out the SL1 & SL2 bulletins.
At this time, as we are moving out of this specific segment, we do not have any recommended substitutes in our global product portfolio.
When and how will the SL1 & SL2 bulletins be phased out?
The bulletins will be phased out for all markets as follows:
| Action RJ-1 Solar Rooftop Junction Box - OBSOLETE No more quotes or SPAs Stop taking orders End of production SL1 & SL2 line final shipments | Deadline IMMEDIATELY September 1, 2025 September 15, 2025 October 1, 2025 October 15, 2025 |
Please note:
- Products will be delivered after phase out deadline only if stock remains available.
- Ongoing projects for customized SL1 & SL2 products will be reviewed with customers to assess and define the transition timeline and conditions.
Which specific enclosures will be phased out?
| Phased Out Product Line(s) | Phased Out Family | Catalog Numbers |
| RU Solar String Transition Box | SL1 | RU-1-LP RU-2-LP RU-1 RU-2 |
| RJ Solar Rooftop Junction Box | SL1 | RJ-1 |
| RF Solar Combiner Box | SL2 | RF-2-3 RF-3 RF-2-4 RF-4 RF-2-6 RF-6 RF-8 RF-12 |
| CUF Solar Combiner Box | SL2 | CUF04-1000V CUF05-1000V CUF06-1000V CUF07-1000V CUF08-1000V CUF09-1000V CUF10-1000V CUF11-1000V CUF12-1000V CUF13-1000V CUF14-1000V CUF15-1000V CUF16-1000V CUF17-1000V CUF18-1000V CUF19-1000V CUF20-1000V |
FAQs
- How do I order an accessory or replacement part for the current SL1 & SL2 ranges?
If you know the item number, you can proceed to order as usual. If you do not know the item number, please contact your nearest nVent HOFFMAN sales representative.
- Does nVent HOFFMAN guarantee that I will be able to order standard SL1 & SL2 enclosures until September 15, 2025?
Although SL1 & SL2 Bulletin stock will be reduced gradually before discontinuing SL1 & SL2 Bulletin on October 1, 2025, HOFFMAN will continue to manufacture enclosures until the last manufacturing date, depending completely on materials availability. If there are no longer materials stock, we will need to cancel orders.
- Who can I contact for more information?
Do not hesitate to contact your nearest nVent HOFFMAN sales representative should you have any questions or comments.
Thank you for your continued support!