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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 FamilyCatalog Numbers
RU Solar String Transition BoxSL1RU-1-LP
RU-2-LP
RU-1
RU-2
RJ Solar Rooftop Junction BoxSL1RJ-1
RF Solar Combiner BoxSL2RF-2-3
RF-3
RF-2-4
RF-4
RF-2-6
RF-6
RF-8
RF-12
 
CUF Solar Combiner BoxSL2CUF04-1000V
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
Information_Icon_black_2.png

Please note:

As of October 2025, for SL1 & SL2 Bulletins, nVent HOFFMAN will no longer maintain stock of accessories and replacement parts for the SL1 & SL2 bulletin ranges or feature them as available products online or in other media.

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!