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DaygreenDaygreen 24V to 12V 1A-300A step-down DC-DC Converter DG-SD-24-12V
DC-DC convertersHover to zoom

Daygreen · DC-DC converters

Daygreen 24V to 12V 1A-300A step-down DC-DC Converter

SKUDG-SD-24-12V

Daygreen DC-DC converters · Power, drivers & controls. Specified, quoted and supplied by Project Supplies for commercial projects.

Input voltage18-35V / D121
Output voltage12V / 18-35V
Output current1–300 A
Output power18–3600 W
Price on requestQuoted for your configuration and quantity.
Technical clarificationCompiled from the supplied Daygreen company brochure (English). Ratings, efficiency and warranty are supplier claims; confirm the exact model datasheet, input range and installation requirements before ordering.
Project Supplies specification sheet

Confirm the specification and quotation before ordering.

Product introduction

DC-DC converters

24V to 12V 1A-300A step-down DC-DC Converter from Daygreen for vehicle, marine, telecom and off-grid systems. 25 catalogue models, 18–3600 W. Customised voltages and currents are available on request.

Key data: input voltage 18-35V / D121; output voltage 12V / 18-35V; output current 1–300 A; output power 18–3600 W.

This record covers 25 catalogue models; the full model table is listed below and in the specification sheet. Tell us the exact model in your RFQ.

Every order starts with an RFQ: we confirm the exact variant, options, lead time and commercial terms in an itemised quotation before anything is ordered.

Input voltage18-35V / D121

Output voltage12V / 18-35V

Output current1–300 A

Output power18–3600 W

Efficiency (as published)95% / 120W

No-load current (as published)<60MA / 95%

Warranty (as published)2-year / 144g / 3-year

CustomisationCustomised variants listed

Specifications

The technical details.

Download specification sheet
Product type
DC-DC step-down converter
Input voltage
18-35V / D121
Output voltage
12V / 18-35V
Output current
1–300 A
Output power
18–3600 W
Efficiency (as published)
95% / 120W
No-load current (as published)
<60MA / 95%
Warranty (as published)
2-year / 144g / 3-year
Customisation
Customised variants listed
Models
B01-24-12, B05-24-12, B05-24-12A, B10-24-12, DN121, D121DC, B10-24-12C, B20-24-12C, B15-24-12, B20-24-12, B30-24-12B, B30-24-12A, B40-24-12A, A2D12C40, B50-24-12, B60-24-12, A2D12C60, B85-24-12, B100-24-12, A2D12C100, B120-24-12, A2D12C150, A2D12C165, A2D12C200, B300-24-12
Model count
25

Models & variants

Choose the exact model.

Values as published by Daygreen. Name the exact model or variant in your RFQ.

P/NInput voltageOutput voltageOutput currentOutput powerEfficiencyNo-load currentDimensions (mm)Net weightWarrantyDrawing
B01-24-1218-35V12V1A18W95%<60MA64*53*2071g2-yearSee figure 1
B05-24-1218-35V12V5A60W95%<60MA64*53*2078g2-yearSee figure 1
B05-24-12A18-35V12V5A60W95%<60MA66*59*23130g2-yearSee figure 3
B10-24-1218-35V12V10A120W95%<60MA66*53*2070g2-yearSee figure 1
DN12118-35V12V10A120W95%<60MA74*41*17.550g2-yearSee figure 2
(custom)D12118-35V12V10A120W95%<60MA66*59*23144g2-year
D121DC18-35V12V10A120W95%<60MA73*56*22175g2-yearSee figure 7
B10-24-12C18-35V12V10A120W95%<60MA74*74*31245g2-yearSee figure 4
B20-24-12C18-35V12V20A240W95%<60MA74*74*31270g2-yearSee figure 4
B15-24-1218-35V12V15A180W95%<60MA74*74*31280g2-yearSee figure 4
B20-24-1218-35V12V20A240W95%<60MA74*74*31280g3-yearSee figure 4
B30-24-12B18-35V12V30A360W95%<60MA74*74*31305g2-yearSee figure 4
B30-24-12A18-35V12V30A360W95%<60MA100*80*38510g2-yearSee figure 5
B40-24-12A18-35V12V40A480W95%<60MA100*80*38505g2-yearSee figure 5
A2D12C4018-35V12V40A480W95%<60MA160*113*351040g3-yearSee figure 27
B50-24-1218-35V12V50A600W95%<60MA153*127*631680g2-yearSee figure 14
B60-24-1218-35V12V60A720W95%<60MA150*127*631680g2-yearSee figure 14
A2D12C6018-35V12V60A720W95%<60MA160*113*351050g3-yearSee figure 27
B85-24-1218-35V12V85A1020W95%<60MA220*127*632200g2-yearSee figure 16
B100-24-1218-35V12V100A1200W95%<60MA220*127*632480g2-yearSee figure 16
A2D12C10018-35V12V100A1200W95%<60MA220*130*502400g3-yearSee figure 33
B120-24-1218-35V12V120A1440W95%<60MA300*127*633020g2-yearSee figure 17
A2D12C15018-35V12V150A1800W95%<60MA280*156*654225g3-yearSee figure 41
A2D12C16518-35V12V165A1980W95%<60MA280*156*654225g3-yearSee figure 41
A2D12C20018-35V12V200A2400W95%<60MA280*156*654225g3-yearSee figure 43
B300-24-1218-35V12V300A3600W95%<60MA280*156*653830g3-yearSee figure 43

Documents

Specification sheet & source.

Project Supplies specification sheet

DG-SD-24-12V

Product image, key data, the full specification, the model table and document control — laid out for project submittals.

PDF · A4Reviewed 2026-10-05Daygreen
Open specification sheet

Technical source

Daygreen

Checked 2026-10-05. Manufacturer values are reference specifications; confirm the exact variant and installation requirements before approval.

View source
Installation & support Site coordination, installation and commissioning.Procurement services Items beyond the catalogue sourced and consolidated.Project quotation One itemised quotation for the whole package.
Daygreen 24V to 12V 1A-300A step-down DC-DC Converter DG-SD-24-12V | Project Supplies