| Parameter | Specification |
|---|---|
| Product Series | SUNTREE SM8 HPV Series |
| Product Type | PV DC Molded Case Circuit Breaker (DC MCCB) |
| Rated Current | 100A–630A |
| Frame Size | 250A / 630A |
| Rated Operating Voltage (Ue) | Up to 1500V DC |
| Rated Insulation Voltage (Ui) | 1500V |
| Rated Impulse Withstand Voltage (Uimp) | 12kV |
| Pole Configuration | 3P / 4P |
| Trip Unit | Thermal Magnetic (TMD Fixed) |
| Breaking Type | H |
| Ultimate Breaking Capacity (Icu) | Up to 30kA |
| Service Breaking Capacity (Ics) | Up to 30kA |
| Current Setting (Ir) | 1 × In |
| Instantaneous Protection (Li) | 6 × In (Minimum 1000A) |
| Mechanical Life | 10,000 Operations |
| Electrical Life | 2,000 Operations |
| Installation Type | Fixed Mounting |
| Protection Degree | IP40 (Enclosure), IP20 (Terminals) |
| Relative Humidity | ≤95% at +50°C |
| Pollution Degree | 3 |
| Operating Temperature | -40°C to +75°C |
| ON/OFF Indication | Yes |
| Adjustable Trip | No |
| Isolation Function | Yes |
| Wiring Polarity Requirement | No |
| Standards | IEC/EN 60947-2, GB14048.2 |
| Application Category | A (PV-1) |
| Model | Poles | Rated Voltage | Frame Current |
|---|---|---|---|
| SM8-250HPV | 3P | 1250V / 1500V DC | 250A |
| SM8-630HPV | 4P | 1500V DC | 630A |
| Model | Available Current Ratings |
|---|---|
| SM8-250HPV | 100A, 125A, 160A, 200A, 225A, 250A |
| SM8-630HPV | 400A, 500A, 630A |
| Model | Rated Voltage | Icu | Ics |
|---|---|---|---|
| SM8-250HPV | 1250V DC | 20kA | 20kA |
| SM8-250HPV | 1500V DC | 15kA | 15kA |
| SM8-630HPV | 1500V DC | 30kA | 30kA |
| Parameter | SM8-250HPV | SM8-630HPV |
|---|---|---|
| Dimensions (L × W × H) | 135 × 200 × 135 mm | Type H: 310 × 240 × 155 mm Type G: 350 × 240 × 155 mm |
| Installation | Fixed | Fixed |
| Pole Configuration | 3P | 4P |
| Mechanical Life | 10,000 Operations | 10,000 Operations |
| Electrical Life | 2,000 Operations | 2,000 Operations |
| Parameter | Specification |
|---|---|
| Operating Temperature | -40°C to +75°C |
| Relative Humidity | ≤95% at +50°C |
| Pollution Degree | 3 |
| Protection Degree | IP40 (Enclosure), IP20 (Terminals) |
| Wiring Polarity | Non-Polarized |
| ON/OFF Indication | Yes |
| Protection Function | Specification |
|---|---|
| Overload Protection | Thermal Magnetic Trip |
| Short-Circuit Protection | Thermal Magnetic Trip |
| Instantaneous Trip (Li) | 6 × In (Minimum 1000A) |
| Current Setting (Ir) | Fixed at 1 × In |
| Adjustable Trip | No |
| Isolation Function | Yes |
| Accessory | Description |
|---|---|
| Shunt Trip | Optional |
| Auxiliary Contact | Optional |
| Alarm Contact | Optional |
Only one accessory (Shunt Trip, Auxiliary Contact, or Alarm Contact) can be installed on each side of the breaker. For 2P models, accessories are installed on the left side only.
The SUNTREE SM8 HPV Series is designed for DC circuits with operating voltages of up to 1500V DC. The SM8-250HPV supports 1250V and 1500V DC applications, while the SM8-630HPV is designed for 1500V DC systems.
The SM8 HPV Series covers rated currents from 100A to 630A. The SM8-250HPV is available in 100A, 125A, 160A, 200A, 225A, and 250A ratings, while the SM8-630HPV is available in 400A, 500A, and 630A.
The main differences are their frame size, pole configuration, and current capacity. The SM8-250HPV is a 3-pole MCCB with a 250A frame, while the SM8-630HPV is a 4-pole MCCB with a 630A frame for higher-current DC applications.
The breaking capacity depends on the model and operating voltage. The SM8-250HPV has an Icu and Ics of 20kA at 1250V DC and 15kA at 1500V DC. The SM8-630HPV provides an Icu and Ics of up to 30kA at 1500V DC.
What voltage is the SUNTREE SM8 HPV DC MCCB suitable for?
What is the current range of the SUNTREE SM8 HPV?
What is the difference between SM8-250HPV and SM8-630HPV?
What is the breaking capacity of the SUNTREE SM8 HPV?
1 review for SUNTREE SM8 HPV DC MCCB1500V PV Molded Case Circuit Breaker
Lyda –
A 1500V DC MCCB is a useful option for larger solar installations that need higher-capacity protection.