UL98 and CSA certified, HP rated and approved for service entrance applications.
Compact one piece lightweight construction that enables easier installation even in tight spaces.
Multiple break current paths for excellent loaded endurance, reduces heat and increases switching speed.
Extended endurance cycles provides three times the UL requirement.
400A switch has two lugs 1/0 – 600 MCM; using two smaller wires vs. one large wire that can significantly reduce installation cost.
Lay-in lugs are provided for easier wiring. The lug cap is removable and dramatically reduces the need for vertical insertion of wire into lug.
Spring loaded heat sink fuse clip providing maintenance free consistent contact pressure for optimum performance.
One piece line and load base to assure consistent phase-to-phase alignment.
The enclosure incorporates an upward flange to prevent water, ice, and snow access from the top of the enclosure. Reductions in seams and large overlaps improve sealing characteristics.
Extra ground lug on the neutral eliminates the need for installers to add additional lug when required for local codes.
Tangential knock outs for consistent installation.
Rugged metal handle with large red grip that provides high visibility for the user.
Generous wire gutters that meet and/or exceed NEC wire bending space requirements.
A unique enclosure design that adds rigidity and strength. It also offers a touchsafe edge for the installer’s hand.
Old to New Design Cross Reference
(click text to download)
Old Catalog Number
New Catalog Number
2 Pole, 400A
2 Pole, 600A
3 Pole, 400A
3 Pole, 600A
Competitor Cross Reference (click to download)
240V Heavy Duty
240V General Duty
600V Heavy Duty
Replacement Parts Guide
(click text or image to download)
Click to watch
(click text to view)
Frequently Asked Questions
1. When is the new design introduced to the market?
New design catalog numbers are available for sales as of July 29, 2015.
2. What are the drivers for the redesign project?
Siemens is a company that strives for innovation. 400A and 600A switch products are redesigned to enhance the performance of the products by bring them to existing Siemens VBII platform. Additionally, new design will provide more value to the customer in terms of performance, installation cost and total cost of ownership.
3. What are top selling features for the new design?
Top 5 selling features for the design are as follows:
Multiple breaks for the current path, reduces heat and increases switching speed.
Endurance cycles providing three times UL requirements.
One piece load and line base providing consistent phase to phase alignment.
Spring loaded heat sink fuse clip providing maintenance free consistent pressure.
Ease of Installation
Compact design enables easier installation.
First in industry to provide lay in lugs and removable lug caps, reducing need for vertical insertion of the wire into the lug.
Clamp in fuse insertion.
Reduced cost of Installation
400 amp Switch has two lugs 1/0 – 600 MCM; using two smaller wires vs. one large wire can significantly reduce installation cost.
Extra Ground Lug on neutral eliminates need for additional lug when needed by local code
Total Cost of Ownership
New design provide 3 times the life expectancy when compared to design at UL requirements.
Design inherited features like wrap around edges, tangential knock outs, Siemens red handle.
Largest array of replacement parts and accessories.
4. Do we have change in the catalog structure for Switch and Accessories?
Yes. We have new catalog structure for switches, replacement parts and accessories. The reason for new scheme is to differentiate between the two designs. The reasons for differentiations are –
New design is dual rated (UL and CSA) while existing design have separate catalog numbers for US and Canada.
Accessories and replacement parts are not interchangeable between the two designs.
New design needed to be differentiated in the UL files.
Catalog number optimization – 206 catalog to 75 catalog numbers.
5. What is the impact of catalog optimization activity?
We have consolidated 206 switch catalog numbers into 75 catalogs. Results of catalog optimization is as follows -
Siemens will no longer offer Murray Brand Switch for 400A and 600A.
Siemens will no longer offer Height Reduced “H” version catalogs. New design is compact and dimensionally it is comparable to existing height reduced products.
Siemens will no longer offer separated non-fused catalog numbers for Canada.
Siemens will no longer offer separate fused catalog numbers for Canada except when neutral is required.
Siemens will no longer offer 265 and 266.
6. What is lead time for new design?
If catalog number is in stock, it would be 3 days to pick, pack and ship. If catalog number is not in the stock, planned lead time would be 28 days except for special Canadian catalog numbers where lead time would be 34 days.
7. What is obsolescence plan for the existing design?
In next 4-6 weeks (as of 9/9/2015) Siemens will deplete inventory for the existing catalog numbers. As we deplete inventory customer demand will be transitioned to equivalent new catalog numbers. If you are working on a project that will not materialize in next 4-6 weeks, please quote new catalog numbers.
8. What is the strategy for replacement parts and accessories for existing design?
Siemens would support for replacement part and accessories for existing design post phase out. In near future replacement parts would be set-up as made to order parts. Accessories would be stocked at DC.
9. Is new design Buy America Compliant?
Standard production will come from Siemens Juarez, MX factory and hence it would not be “Buy America” compliant. Siemens can produce 400A and 600A switches in El Paso, TX location. Buy America compliant switches would have to be ordered through special ordering process. We would have to follow TYZSPARE: process.
10. What is RGA strategy for existing design post phase out?
Siemens will honor standard warranty terms for existing design post phase out. If replacement product needs to be provided, we would provide equivalent new catalog number.
11. What is strategy for product return as a part of stock adjustment?
Siemens will allow existing design to be return under stock adjustment program until end of FY16. After that it would be on case by case basis.
12. What is change to the list price structure for the new catalog numbers when compared to existing catalogs?
If product is one to one replacement, list price for new catalog number is same as existing catalog number. If new catalog number is replacing more than one existing catalog numbers, list price is adjusted to highest moving catalog number. Every attempt is made on Siemens part to make sure change in list price is as minimal as possible.
13. What is change to MG3 Structure for new catalog numbers?
New catalog numbers are set-up in same MG3 as corresponding existing catalog. Customer should not see any difference in the discounts.
14. What is plan for the rebate contracts?
76 of existing catalog numbers are under rebate contract. Corresponding new catalog numbers are added to the rebate contracts. It is automatically taken care and no action is needed from the customer. In near future we will start working on removing existing catalog numbers from the rebate contract. This would be a two-step approach. First step is to remove catalog numbers where we don’t have any sale in past 2 years. As a second step, remaining catalog numbers will be removed but at a later stage. We would provide sufficient time to channel partners to submit rebates.
15. Do we have physical difference between the two designs?
Yes. New design is more compact when compared to existing one. Please refer to the cut sheets for more details.
16. What is available from literature point of view?
We will provide following literature for uses –
Product data sheet(s)
Application and Selection Guide
Replacement part guide
Drawings are available on demand.