Schneider Electric SV43 Series...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$567.00
Schneider SV43 Series Current Transformers, 120 x 240 Vac Primary 60 Hz

Schneider Electric SV43 Series Buck and Boost Transformer 120 x 240 Vac Primary 12/24V Secondary 60Hz

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Model: 500SV43B

In Stock (leaves warehouse same day if ordered before 3pm ET)

$567.00
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Schneider Electric SV43 Series Buck and Boost Transformer

Professional voltage transformation for versatile electrical applications

The Schneider Electric SV43 Series Buck and Boost Transformer delivers reliable voltage transformation with 120 x 240 Vac primary voltage and 12/24V secondary output at 60Hz. This dry-type transformer features NEMA 3R protection rating for enhanced durability and 130°C insulation temperature rating for professional performance. With compact dimensions of 6.18" x 6.18" x 4.53" and 25-year average life duration, this transformer provides long-term reliability for demanding electrical applications.

Professional Features & Benefits

  • 120 x 240V Primary Voltage: Accommodates standard electrical supply configurations for versatile installation compatibility
  • 12/24V Secondary Output: Provides precise low-voltage transformation for control circuits and specialized equipment
  • NEMA 3R Protection: Weather-resistant enclosure protects against rain, sleet, and ice formation for reliable outdoor operation
  • 130°C Insulation Temperature: High-temperature rating ensures consistent performance under demanding thermal conditions
  • Dry-Type Construction: Eliminates liquid coolant requirements for safer installation and reduced maintenance needs
  • 25-Year Average Life Duration: Extended service life reduces replacement costs and ensures long-term operational reliability
  • Compact 6.18" x 6.18" x 4.53" Design: Space-efficient footprint enables installation in constrained electrical enclosures

Technical Specifications

  • Average Life Duration: 25 year(s)
  • China Rohs In Scope: No
  • China Rohs Label: 1
  • Country Of Origin: Mexico
  • Device Type: Transformer - dry
  • Environmental Disclosure: ENVPEP1407010
  • Eoli Availability Display: No need of specific recycling operations
  • Eu Rohs Directive: Compliant
  • Field Service Division: PPIBS
  • Green Premium Status For Reporting: Green Premium product
  • Insulation Temperature: 130 °C
  • Legacy Weee Scope: In
  • Manufacturer: Schneider Electric
  • Mercury Free: Yes
  • Nema Degree Of Protection: NEMA 3R
  • Packaging Made With Recycled Cardboard: No
  • Packaging Without Single Use Plastic: No
  • Primary Voltage: 120 x 240 V
  • Product Availability: Stock - Normally stocked in distribution facility
  • Product Contributes To Saved And Avoided Emissions: No
  • Product Depth: 4.53 in
  • Product Height: 6.18 in
  • Product Or Component Type: Buck and Boost Transformer
  • Product Width: 6.18 in
  • Reach Compliance Directive: Free of Substances of Very High Concern above the threshold
  • Reach Free Of Svhc: Yes
  • Reach Free Shvc: Yes
  • Reach Full Compliance Status: Free of Substances of Very High Concern above the threshold
  • Reach Full Compliance Status Id: NOT_CONTAINING_SVHC
  • Reach Regulation: Free of Substances of Very High Concern above the threshold
  • Recycled Metal Content At Cr Level: 0%
  • Return Indicator: Y
  • Returnability: Yes
  • Rohs Eur Conformity Date: 1909
  • Rohs Eur Full Compliance Status: Compliant
  • Rohs Eur Full Compliance Status Id: COMPLIANT
  • Rohs Eur In Scope: Yes
  • Rohs Eur Status: Compliant
  • Rohs Exemption Information: Yes
  • Scope Perimeter: Outside of Europe
  • Secondary Voltage: 12/24 V
  • Serviceability: No
  • Sustainable Packaging: No
  • Take Back: No
  • Temperature Rise: 80 °C
  • Toxic Heavy Metal Free: Yes
  • Traceability: No
  • Wd Status: 1 - GSC certified
  • With Recycled Cardboard: No
  • Without Single Use Plastic: No
  • Department: Electrical

Professional Applications

  • Control Circuit Power Supply
  • Low-Voltage Equipment Operation
  • Industrial Automation Systems
  • Commercial Building Controls
  • HVAC Control Circuits
  • Security System Power
  • Lighting Control Applications

Why Choose Schneider Electric Quality?

Schneider Electric SV43 Series transformers combine proven reliability with comprehensive compliance certifications including RoHS and REACH directives. The 25-year average life duration and NEMA 3R protection rating ensure dependable performance in demanding environments, while mercury-free and toxic heavy metal-free construction supports sustainable electrical installations.

Manufacturer Resources

Product Specs

Average Life Duration:
25 year(s)
China Rohs In Scope:
No
China Rohs Label:
1
Country Of Origin:
Mexico
Device Type:
Transformer - dry
Environmental Disclosure:
ENVPEP1407010
Eoli Availability Display:
No need of specific recycling operations
Eu Rohs Directive:
Compliant
Field Service Division:
PPIBS
Green Premium Status For Reporting:
Green Premium product
Insulation Temperature:
130 °C
Legacy Weee Scope:
In
Mercury Free:
Yes
Nema Degree Of Protection:
NEMA 3R
Packaging Made With Recycled Cardboard:
No
Packaging Without Single Use Plastic:
No
Primary Voltage:
120 x 240 V
Product Availability:
Stock - Normally stocked in distribution facility
Product Contributes To Saved And Avoided Emissions:
No
Product Depth:
4.53 in
Product Height:
6.18 in
Product Or Component Type:
Buck and Boost Transformer
Product Width:
6.18 in
Reach Free Of Svhc:
Yes
Reach Full Compliance Status:
Free of Substances of Very High Concern above the threshold
Recycled Metal Content At Cr Level:
0%
Rohs Eur Conformity Date:
1909
Rohs Exemption Information:
Yes
Secondary Voltage:
12/24 V
Serviceability:
No
Sustainable Packaging:
No
Take Back:
No
Temperature Rise:
80 °C
Toxic Heavy Metal Free:
Yes
Traceability:
No
Wd Status:
1 - GSC certified
With Recycled Cardboard:
No
Without Single Use Plastic:
No
Department:
Electrical
Product Type:
Buck and Boost Transformer
Product Group:
Transformers

Schneider 500SV43B – Frequently Asked Questions

1) What does a buck and boost transformer like the Schneider SV43 actually do, and when should I use one instead of a standard isolation transformer?
A buck and boost transformer is used to nudge a line voltage up or down by a small amount rather than make a large step change. The Schneider Electric SV43 is a dry-type unit with a 120 x 240 V primary and a 12/24 V secondary, so the secondary winding is small relative to the line. Wired as an autotransformer, that 12 or 24 V winding is put in series with the supply to add or subtract that amount, which is how you correct a 208 V feed that needs to be closer to 230 V, or trim a high line down. If you need full winding-to-winding separation between supply and load, that is an isolation transformer job, not this. Connected as a straight two-winding isolation transformer, the SV43 only delivers 12 or 24 V on the output.
2) Can I mount the Schneider SV43 transformer outdoors or in an unheated area?
Yes. The SV43 buck and boost transformer carries a NEMA 3R enclosure rating, which covers outdoor use against falling rain, sleet, and ice formation on the enclosure. NEMA 3R is not a washdown or dust-tight rating, so keep it off surfaces that get hosed down and out of direct spray. For a rooftop HVAC disconnect, a pump skid, or a sign circuit on an exterior wall, 3R is the rating you want.
3) Which kVA size of the Schneider SV43 do I need, 0.25 or 0.5?
Two sizes are offered: 0.25 kVA, part number 250SV43B, and 0.5 kVA, part number 500SV43B. Size on the load, not the transformer. In a buck-boost autotransformer connection the unit only handles the voltage difference, so the kVA on the nameplate supports a much larger connected load than the same number would in an isolation connection; wired as a straight isolation transformer, the 0.25 kVA unit is only good for 250 VA of 12 or 24 V load. Both sizes share the same 120 x 240 V primary and 12/24 V secondary.
4) Can I use the Schneider SV43 on a 120 volt supply as well as 240?
The primary is a 120 x 240 V dual-voltage winding, so it works on either. The two primary coils are connected in parallel for a 120 V supply or in series for 240 V; the secondary gives 12 V or 24 V depending on how its coils are landed. That is what lets one part cover a 120 V lighting or control feed and a 240 V equipment feed. Frequency is 60 Hz.
5) My equipment is rated 230 V but my building feeds 208 V. Will a Schneider SV43 fix that?
That is the classic boost application for this transformer. With a 24 V secondary winding inserted in series on a 208 V single-phase feed, the boost connection raises the supply to roughly 232 V, which puts a 230 V nameplate motor or heater back inside its tolerance band. The SV43 covers it with either a 12 V or a 24 V winding depending on how much lift you need, off a 120 V or 240 V primary connection. Size the unit on the load current, not on the full kVA of the equipment, since only the 12 or 24 V difference passes through the windings in this connection.
6) Does the Schneider SV43 transformer meet RoHS and REACH requirements for a government or institutional spec?
It does. The SV43 is EU RoHS compliant and REACH compliant as free of Substances of Very High Concern above the threshold. It is also mercury free and free of toxic heavy metals, and Schneider classes it as a Green Premium product with environmental disclosure ENVPEP1407010, which is the document number a specifier or LEED submittal will ask for. Country of origin is Mexico.
7) Can the Schneider SV43 power a 24 volt control circuit for HVAC or a security panel?
Yes, wired as a standard two-winding transformer rather than in the buck-boost autotransformer connection. The secondary is 12/24 V, so you land the secondary coils in series for 24 V or parallel for 12 V, fed from either 120 V or 240 V on the primary side. Watch the burden: at 0.25 kVA (250SV43B) you have 250 VA available at 24 V, and at 0.5 kVA (500SV43B) you have 500 VA. Note this is a power transformer, not a Class 2 control transformer, so if your equipment or the inspector requires Class 2 limited energy on the secondary, that is a different part.
8) Is the Schneider SV43 transformer a field-repairable unit or is it replace-on-failure?
Replace on failure. The SV43 is listed as non-serviceable, so there are no field-replaceable windings, taps, or internal parts; if it fails you swap the unit. For a facility standardizing across multiple openings or panels, that argues for keeping one spare of the kVA size you use most, either 250SV43B or 500SV43B.
How fast can I get the Schneider 500SV43B delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Schneider 500SV43B come with a warranty?
Absolutely. The Schneider 500SV43B is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Schneider 500SV43B?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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