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Morningstar SunSaver 10 Solar Controller
Model: SS-10-12V · SKU: SS-10-12V
Prepared Oct 24, 2026
Common specifications
| Controller type | PWMSource [1] |
|---|---|
| Maximum PV voltage | 30 VSource [1, 2] |
| Maximum PV input power | Not documented |
| Maximum PV input power by battery voltage | Not documented |
| PV input current / MPPT | 10 ASource [2] |
| Charge current | 10 ASource [1] |
| Battery voltage | 12VSource [1] |
| Battery chemistry | Sealed; Flooded/AGMSource [2] |
| Efficiency | Not documented |
| MPPT tracking efficiency | Not documented |
| Maximum conversion efficiency | Not documented |
| Full-load efficiency | Not documented |
| Charger efficiency | Not documented |
| Weighted efficiency | Not documented |
| Rated charge power | Not documented |
| Load output current | 10 ASource [1, 2] |
| Self-consumption | 8 mASource [1] |
| Enclosure | Not documented |
| Safety listing | EN60335-1 and EN60335-2-29 (battery chargers)Source [2] |
| Enclosure volume | Not documented |
| Warranty term | 5 yearsSource [1] |
All recorded specifications
| Battery cable size (manual) | #10 AWG / 5 mm2 (max.)Documented claim ConditionsPrinted as "Power terminals wire size (max.) Solid #10 AWG / 5 mm2 Multistrand #10 AWG / 5 mm2 Fine strand #10 AWG / 5 mm2" in Morningstar's SunSaver Installation and Operation Manual (MS-001272 v4.1), section 7.0 Mechanical, printed once for all SunSaver models (solid, multistrand and fine strand). The wire charts on PDF pages 24 and 25 give sizes by current and one-way distance; the Fusing Chart limits fuses to 15 Amps on 14 AWG, 20 Amps on 12 AWG and 30 Amps on 10 AWG. Location: PDF page 24, section 7.0, Mechanical, Power terminals wire size (max.) Printed as "Power terminals wire size (max.) Solid #10 AWG / 5 mm2 Multistrand #10 AWG / 5 mm2 Fine strand #10 AWG / 5 mm2" in Morningstar's SunSaver Installation and Operation Manual (MS-001272 v4.1), section 7.0 Mechanical, printed once for all SunSaver models (solid, multistrand and fine strand). The wire charts on PDF pages 24 and 25 give sizes by current and one-way distance; the Fusing Chart limits fuses to 15 Amps on 14 AWG, 20 Amps on 12 AWG and 30 Amps on 10 AWG. Location: PDF page 24, section 7.0, Mechanical, Power terminals wire size (max.) |
|---|---|
| Battery chemistry | Sealed; Flooded/AGMDocumented claim ConditionsPrinted as "Sealed 12 V or 24 V Flooded/AGM 12 V or 24 V" in Morningstar's SunSaver Installation and Operation Manual (MS-001272 v4.1), the section 7.0 Battery Set-points table (columns Sealed and Flooded/AGM). Section 3.1 (PDF page 8) says "The SunSaver charging algorithm is compatible with lead-acid or NiCd batteries. NiMH, Li-ion, and other battery chemistries are not compatible with the SunSaver charging algorithm." Location: PDF page 23, section 7.0, Battery Set-points table Printed as "Sealed 12 V or 24 V Flooded/AGM 12 V or 24 V" in Morningstar's SunSaver Installation and Operation Manual (MS-001272 v4.1), the section 7.0 Battery Set-points table (columns Sealed and Flooded/AGM). Section 3.1 (PDF page 8) says "The SunSaver charging algorithm is compatible with lead-acid or NiCd batteries. NiMH, Li-ion, and other battery chemistries are not compatible with the SunSaver charging algorithm." Location: PDF page 23, section 7.0, Battery Set-points table |
| Battery fuse or breaker (manual) | in-line fuse holder no more than 6 inches (150 mm) from the battery positive terminal, or a circuit breakerDocumented claim ConditionsPrinted as "Wire an in-line fuse holder no more than 6 inches (150" in Morningstar's SunSaver Installation and Operation Manual (MS-001272 v4.1), section 3.4, Step 2, a statement for all SunSaver models. Fuse size follows the Fusing Chart on PDF page 24 (maximum 15 Amps on 14 AWG, 20 Amps on 12 AWG and 30 Amps on 10 AWG copper wire). Location: PDF page 13, section 3.4, Step 2 (Battery Wiring) Printed as "Wire an in-line fuse holder no more than 6 inches (150" in Morningstar's SunSaver Installation and Operation Manual (MS-001272 v4.1), section 3.4, Step 2, a statement for all SunSaver models. Fuse size follows the Fusing Chart on PDF page 24 (maximum 15 Amps on 14 AWG, 20 Amps on 12 AWG and 30 Amps on 10 AWG copper wire). Location: PDF page 13, section 3.4, Step 2 (Battery Wiring) |
| Battery operating voltage | 6 -15VDocumented claim ConditionsPrinted as "Battery voltage range 6 -15V or 6-30V" in Morningstar's SunSaver Installation and Operation Manual (MS-001272 v4.1), section 7.0 Electrical; the first figure is for 12 V and the second for 24 V models, so 6 -15V applies to the 12 V SS-10-12V. Location: PDF page 23, section 7.0, Electrical, Battery voltage range row Printed as "Battery voltage range 6 -15V or 6-30V" in Morningstar's SunSaver Installation and Operation Manual (MS-001272 v4.1), section 7.0 Electrical; the first figure is for 12 V and the second for 24 V models, so 6 -15V applies to the 12 V SS-10-12V. Location: PDF page 23, section 7.0, Electrical, Battery voltage range row |
| Battery terminal torque (manual) | 10.6 in-lbDocumented claim ConditionsPrinted as "Power terminals torque (max.) 10.6 in-lb / 1.2 Nm" in Morningstar's SunSaver Installation and Operation Manual (MS-001272 v4.1), section 7.0 Mechanical, printed once for all SunSaver models. Location: PDF page 24, section 7.0, Mechanical, Power terminals torque (max.) row Printed as "Power terminals torque (max.) 10.6 in-lb / 1.2 Nm" in Morningstar's SunSaver Installation and Operation Manual (MS-001272 v4.1), section 7.0 Mechanical, printed once for all SunSaver models. Location: PDF page 24, section 7.0, Mechanical, Power terminals torque (max.) row |
| Battery voltage | 12VDocumented claim ConditionsPrinted as this model's own system voltage. Location: Ratings table, System Voltage row Printed as this model's own system voltage. Location: Ratings table, System Voltage row |
| Charge current | 10 ADocumented claim ConditionsPrinted as this model's own maximum solar current on its 12V system. Location: Ratings table, Max. Solar Current row Printed as this model's own maximum solar current on its 12V system. Location: Ratings table, Max. Solar Current row |
| Controller type | PWMDocumented claim ConditionsPrinted describing the charging method. Location: Battery Charging block Printed describing the charging method. Location: Battery Charging block |
| Dimensions | 15.2 × 5.5 × 3.2 cmDocumented claim ConditionsPrinted as a single value shared across all nine versions. Location: Wire Size / Weight / Dimensions block Printed as a single value shared across all nine versions. Location: Wire Size / Weight / Dimensions block |
| Grounding (manual) | The SunSaver is a negative ground controller.; Any one negative conductor can be earth grounded as required.; Grounding is recommended, but not required for correct operation.Documented claim ConditionsPrinted as "The SunSaver is a negative ground controller. Any one negative conductor can be earth grounded as required. Grounding is recommended, but not required for correct operation." in Morningstar's SunSaver Installation and Operation Manual (MS-001272 v4.1), the section 3.4 notes, for all SunSaver models. Location: PDF page 12, section 3.4 (Wiring), notes Printed as "The SunSaver is a negative ground controller. Any one negative conductor can be earth grounded as required. Grounding is recommended, but not required for correct operation." in Morningstar's SunSaver Installation and Operation Manual (MS-001272 v4.1), the section 3.4 notes, for all SunSaver models. Location: PDF page 12, section 3.4 (Wiring), notes |
| Installation clearances (manual) | AT LEAST 2” (51 mm) above and belowDocumented claim ConditionsPrinted as "WARM AIR COOL AIR AT LEAST 2” (51 mm) AT LEAST 2” (51 mm)" in Morningstar's SunSaver Installation and Operation Manual (MS-001272 v4.1), Figure 3 (Mounting and cooling) of section 3.3, for all SunSaver models. Location: PDF page 11, section 3.3 (Mounting), Step 2 and Figure 3 Printed as "WARM AIR COOL AIR AT LEAST 2” (51 mm) AT LEAST 2” (51 mm)" in Morningstar's SunSaver Installation and Operation Manual (MS-001272 v4.1), Figure 3 (Mounting and cooling) of section 3.3, for all SunSaver models. Location: PDF page 11, section 3.3 (Mounting), Step 2 and Figure 3 |
| Load output current | 10 ADocumented claim ConditionsPrinted as "Max. Load Current 6 A 10 A 20 A" in Morningstar's SunSaver Installation and Operation Manual (MS-001272 v4.1), the Specification Summary inside the front cover (columns SS-6/6L, SS-10/10L, SS-20L); 10 A is the column for the SS-10-12V. Re-cited on 1 October 2026 to the manufacturer's own document; previously cited to Morningstar (morningstarcorp.com), which stays listed as an additional source. Location: PDF page 2, Specification Summary, Max. Load Current row Printed as "Max. Load Current 6 A 10 A 20 A" in Morningstar's SunSaver Installation and Operation Manual (MS-001272 v4.1), the Specification Summary inside the front cover (columns SS-6/6L, SS-10/10L, SS-20L); 10 A is the column for the SS-10-12V. Re-cited on 1 October 2026 to the manufacturer's own document; previously cited to Morningstar (morningstarcorp.com), which stays listed as an additional source. Location: PDF page 2, Specification Summary, Max. Load Current row Official installation manual · Morningstar SunSaver PV System Controllers Installation and Operation Manual (MS-001272 v4.1)Official datasheet · Morningstar's own SunSaver (PWM) datasheet, control #MS-002634 REV 6/2026.EN, from morningstarcorp.com's own SunSaver product page. [1, 2] |
| Maximum PV voltage | 30 VDocumented claim ConditionsPrinted as "Max. solar input voltage 30 or 60V" in Morningstar's SunSaver Installation and Operation Manual (MS-001272 v4.1), section 7.0 Electrical; 30V is for 12 V and 60V for 24 V models, so 30V applies to the SS-10-12V. Re-cited on 1 October 2026 to the manufacturer's own document; previously cited to Morningstar (morningstarcorp.com), which stays listed as an additional source. Location: PDF page 23, section 7.0, Electrical, Max. solar input voltage row Printed as "Max. solar input voltage 30 or 60V" in Morningstar's SunSaver Installation and Operation Manual (MS-001272 v4.1), section 7.0 Electrical; 30V is for 12 V and 60V for 24 V models, so 30V applies to the SS-10-12V. Re-cited on 1 October 2026 to the manufacturer's own document; previously cited to Morningstar (morningstarcorp.com), which stays listed as an additional source. Location: PDF page 23, section 7.0, Electrical, Max. solar input voltage row Official installation manual · Morningstar SunSaver PV System Controllers Installation and Operation Manual (MS-001272 v4.1)Official datasheet · Morningstar's own SunSaver (PWM) datasheet, control #MS-002634 REV 6/2026.EN, from morningstarcorp.com's own SunSaver product page. [1, 2] |
| Mounting orientation (manual) | vertical surfaceDocumented claim ConditionsPrinted as "Locate the SunSaver on a vertical surface protected from direct sun, high temperatures, and water." in Morningstar's SunSaver Installation and Operation Manual (MS-001272 v4.1), section 3.3, Step 1, for all SunSaver models. The same step says mounting on a horizontal surface does not provide optimal airflow and could lead to overheating. Location: PDF page 11, section 3.3 (Mounting), Step 1 Printed as "Locate the SunSaver on a vertical surface protected from direct sun, high temperatures, and water." in Morningstar's SunSaver Installation and Operation Manual (MS-001272 v4.1), section 3.3, Step 1, for all SunSaver models. The same step says mounting on a horizontal surface does not provide optimal airflow and could lead to overheating. Location: PDF page 11, section 3.3 (Mounting), Step 1 |
| Operating temperature | −40°C to +60°CDocumented claim ConditionsPrinted as a single value shared across all nine versions. Location: Environmental block, Ambient Temperature row Printed as a single value shared across all nine versions. Location: Environmental block, Ambient Temperature row |
| PV conductors (manual) | #10 AWG / 5 mm2 (max.)Documented claim ConditionsPrinted as "Power terminals wire size (max.) Solid #10 AWG / 5 mm2 Multistrand #10 AWG / 5 mm2 Fine strand #10 AWG / 5 mm2" in Morningstar's SunSaver Installation and Operation Manual (MS-001272 v4.1), section 7.0 Mechanical, printed once for all SunSaver models (solid, multistrand and fine strand). Location: PDF page 24, section 7.0, Mechanical, Power terminals wire size (max.) Printed as "Power terminals wire size (max.) Solid #10 AWG / 5 mm2 Multistrand #10 AWG / 5 mm2 Fine strand #10 AWG / 5 mm2" in Morningstar's SunSaver Installation and Operation Manual (MS-001272 v4.1), section 7.0 Mechanical, printed once for all SunSaver models (solid, multistrand and fine strand). Location: PDF page 24, section 7.0, Mechanical, Power terminals wire size (max.) |
| PV input current / MPPT | 10 ADocumented claim ConditionsMaximum pv input current as printed in Morningstar SunSaver PV System Controllers Installation and Operation Manual (MS-001272 v4.1): "10", Ratings, Max. Solar Current row, SS-10/10L column. Location: Ratings, Max. Solar Current row, SS-10/10L column Maximum pv input current as printed in Morningstar SunSaver PV System Controllers Installation and Operation Manual (MS-001272 v4.1): "10", Ratings, Max. Solar Current row, SS-10/10L column. Location: Ratings, Max. Solar Current row, SS-10/10L column |
| PV terminal torque (manual) | 10.6 in-lbDocumented claim ConditionsPrinted as "Power terminals torque (max.) 10.6 in-lb / 1.2 Nm" in Morningstar's SunSaver Installation and Operation Manual (MS-001272 v4.1), section 7.0 Mechanical, printed once for all SunSaver models. Location: PDF page 24, section 7.0, Mechanical, Power terminals torque (max.) row Printed as "Power terminals torque (max.) 10.6 in-lb / 1.2 Nm" in Morningstar's SunSaver Installation and Operation Manual (MS-001272 v4.1), section 7.0 Mechanical, printed once for all SunSaver models. Location: PDF page 24, section 7.0, Mechanical, Power terminals torque (max.) row |
| Safety listing | EN60335-1 and EN60335-2-29 (battery chargers)Documented claim ConditionsPrinted as "Safety: EN60335-1 and EN60335-2-29 (battery chargers)" in Morningstar's SunSaver Installation and Operation Manual (MS-001272 v4.1), section 2.3, the safety standards the SunSaver controllers are stated to comply with. Section 2.3 also lists EMC standards EN61000-6-2:1999 and EN55022:1994. These are the maker's claims as printed, not checked against any directory. Location: PDF page 7, section 2.3 (Regulatory Information) Printed as "Safety: EN60335-1 and EN60335-2-29 (battery chargers)" in Morningstar's SunSaver Installation and Operation Manual (MS-001272 v4.1), section 2.3, the safety standards the SunSaver controllers are stated to comply with. Section 2.3 also lists EMC standards EN61000-6-2:1999 and EN55022:1994. These are the maker's claims as printed, not checked against any directory. Location: PDF page 7, section 2.3 (Regulatory Information) |
| Self-consumption | 8 mADocumented claim ConditionsPrinted as a single maximum figure shared across all nine versions. Location: Ratings table, Self-Consumption row Printed as a single maximum figure shared across all nine versions. Location: Ratings table, Self-Consumption row |
| Weight | 0.23 kgDocumented claim ConditionsPrinted as a single value shared across all nine versions. Location: Wire Size / Weight / Dimensions block Printed as a single value shared across all nine versions. Location: Wire Size / Weight / Dimensions block |
Warranty
| Warranty term | 5 yearsDocumented claim ConditionsPrinted as a single warranty statement shared across all nine versions. Location: Final page, WARRANTY line Printed as a single warranty statement shared across all nine versions. Location: Final page, WARRANTY line |
|---|
Certificate records
| UL 1741 | Claimed · Listed when checkedApplies to: equipment listing Printed in the manufacturer's own datasheet Certifications block, captured September 28, 2026; no certificate number or issuer file number is given, so it is a manufacturer claim and not issuer-verified. [1] |
|---|---|
| CSA C22.2 No. 213-M1987 | Claimed · Listed when checkedApplies to: equipment listing Printed in the manufacturer's own datasheet Certifications block, captured September 28, 2026; no certificate number or issuer file number is given, so it is a manufacturer claim and not issuer-verified. [1] |
| IEC/EN 62109-1 | Claimed · Listed when checkedApplies to: unresolved document set Printed in the manufacturer's own datasheet Certifications block, captured September 28, 2026; no certificate number or issuer file number is given, so it is a manufacturer claim and not issuer-verified. [1] |
| FCC Title 47 Part 15 Subpart B | Claimed · Listed when checkedApplies to: unresolved document set Printed in the manufacturer's own datasheet Certifications block, captured September 28, 2026; no certificate number or issuer file number is given, so it is a manufacturer claim and not issuer-verified. [1] |
| UL1604/ANSI/ISA 12.12.01-2000 | Claimed · Listed when checkedApplies to: unresolved document set Printed in the manufacturer's own datasheet Certifications block, captured September 28, 2026; no certificate number or issuer file number is given, so it is a manufacturer claim and not issuer-verified. [1] |
Sources and revisions
- Morningstar's own SunSaver (PWM) datasheet, control #MS-002634 REV 6/2026.EN, from morningstarcorp.com's own SunSaver product page.Official datasheet · Checked Sep 28, 2026https://www.morningstarcorp.com/wp-content/uploads/IV-2-Morningstar-SunSaver-2026-Jun-25.pdf
- Morningstar SunSaver PV System Controllers Installation and Operation Manual (MS-001272 v4.1)Official installation manual · Revision MS-001272 v4.1 · Checked Oct 1, 2026https://www.morningstarcorp.com/wp-content/uploads/operation-manual-sunsaver-en.pdf