EMERSON CF00300-2143 Sun Power Supply 70011496-J000 A237 12V 62.3A/3.35V 3.6A 760W 300-2143-04

( Brand: Emerson ), ( Manufacturer Part Number: CF00300-2143 ), ( Part Type: Supply ), ( Compatible Brand: For Sun ), ( Unit Type: Lb ), ( Item Height: 1 In ), ( Maximum Output Power: 760 W ), ( Item Length: 13.75 In ), ( Unit Quantity: 2.1875 ), ( Country Of Origin: China )

Review EMERSON 12v 62.3a/3.35v 3.6a 760w Sun Power Supply

The Emerson CF00300-2143 is a high-performance, industrial-grade **760-watt solar power supply unit**, meticulously engineered to deliver reliable and efficient power conversion for a wide range of applications, from telecommunications infrastructure and remote monitoring systems to renewable energy storage solutions and critical data centers. Designed with Emerson s reputation for durability and precision in mind, this power supply operates at a nominal input voltage of **12 volts DC**, drawing a maximum current of **62.3 amps**, while providing a robust output configuration of **3.35 volts DC at 3.6 amps** though its true strength lies in its ability to handle demanding workloads with minimal heat dissipation and maximum efficiency. The unit is built to withstand harsh environmental conditions, making it ideal for outdoor installations, off-grid setups, or any scenario where power reliability is non-negotiable. Its compact yet rugged construction ensures easy integration into existing systems, whether mounted on a wall, rack, or within a solar-powered enclosure, while its **70011496-J000** model designation underscores its compliance with stringent industry standards for safety, performance, and longevity. Whether powering sensitive electronic equipment, backup systems, or renewable energy storage batteries, this Emerson power supply combines cutting-edge technology with uncompromising reliability, ensuring seamless operation even under fluctuating load conditions or varying solar input levels. Its efficient power conversion and low ripple output further enhance its suitability for applications requiring stable and clean power delivery, making it a cornerstone for sustainable and resilient energy solutions.

### **Pros and Cons of buying a Emerson CF00300-2143 (70011496-J000) 12V, 760W Solar Power Supply**

1. **High Power Output** The unit delivers **760W** of continuous power, making it suitable for larger solar systems, including off-grid setups, RVs, or backup power applications. It can handle multiple 12V loads simultaneously, such as refrigerators, lights, fans, and small appliances.

2. **Dual Output Voltage**

- **Primary Output:** 12V at **62.3A** (748W continuous), ideal for most 12V DC devices.

- **Secondary Output:** 3.35V at **3.6A** (12W), useful for low-voltage electronics like sensors, microcontrollers, or small LED drivers.

This dual-output capability adds flexibility for systems requiring both high and low-voltage power.

3. **Efficient Solar Charging** Designed for solar applications, it includes **MPPT (Maximum Power Point Tracking)** or **PWM (Pulse Width Modulation)** charging, depending on the model variant. MPPT versions (if applicable) improve efficiency in low-light conditions and maximize battery charging from solar panels.

4. **Wide Input Voltage Range** Compatible with **12V lead-acid, AGM, or lithium batteries**, making it versatile for different battery chemistries. Some models may also support **24V systems** with proper configuration.

5. **Overload and Short-Circuit Protection** Includes built-in safeguards to prevent damage from overloading or short circuits, extending the lifespan of both the power supply and connected devices.

6. **Compact and Rugged Design** Emerson products are generally built to withstand harsh environments, making this unit suitable for outdoor or mobile applications like RVs, boats, or remote cabins.

7. **Compatibility with Inverter Systems** Can be paired with inverters to provide AC power from a 12V DC source, expanding its utility for mixed DC/AC setups.

8. **Long Lifespan with Proper Use** High-quality components and robust construction contribute to durability, reducing the need for frequent replacements.

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1. **Potential MPPT vs. PWM Confusion**

- Some listings or older models of this part number may use **PWM charging**, which is less efficient than **MPPT** (especially in partial sunlight). If MPPT is critical for your setup, verify the exact model variant or ask the seller for confirmation.

- PWM-based chargers may not fully optimize solar panel output, leading to slower battery charging in low-light conditions.

2. **Limited Brand-Specific Support**

- Emerson is a reliable brand, but support for niche or older models can sometimes be inconsistent. Ensure the unit is new or from a reputable seller to avoid counterfeit or damaged units.

- If the unit fails, finding replacement parts or service may require contacting Emerson directly, which could be time-consuming.

3. **Heat Dissipation Concerns**

- A **760W** unit generates significant heat, especially under full load. Proper ventilation is required to prevent overheating, which could reduce efficiency or damage the unit over time.

- If installed in an enclosed space (e.g., an RV or small cabin), additional cooling measures (like a heat sink or fan) may be needed.

4. **Potential for Voltage Sag Under Heavy Loads**

- While 62.3A is the continuous rating, peak loads (e.g., starting a high-wattage motor) could cause temporary voltage drops. Ensure your system has sufficient battery capacity to handle such demands.

5. **Compatibility with Modern Electronics**

- Some low-voltage outputs (e.g., 3.35V at 3.6A) may not meet the exact requirements of modern microcontrollers or USB-powered devices, which often require **5V or 12V**. A separate regulator or adapter may be needed.

6. **Price Sensitivity**

- While not excessively expensive, the cost of a **760W solar power supply** may be higher than smaller units. For smaller setups, a lower-wattage model might suffice, reducing upfront costs.

7. **Installation Complexity**

- Proper wiring, fuse placement, and polarity checks are critical. Incorrect installation can lead to **reverse polarity damage, fires, or voided warranties**. DIY users should exercise caution or consult an electrician.

8. **Limited Availability of Replacement Parts**

- If the unit fails, finding exact replacements for components (e.g., diodes, capacitors) may be difficult, especially for older models.

---

### **Conclusion**

The **Emerson CF00300-2143 (70011496-J000) 12V, 760W solar power supply** is a **powerful and versatile** unit well-suited for **off-grid solar systems, RVs, marine applications, or backup power setups**. Its **dual-output capability, high current handling, and compatibility with various battery types** make it a strong choice for users needing reliable DC power.

However, **potential inefficiencies with PWM charging, heat management requirements, and compatibility quirks** (especially with low-voltage electronics) are worth considering. **MPPT functionality is a major advantage if available**, but buyers should confirm the exact model variant to avoid PWM-based units.

For **large-scale solar setups, high-power DC loads, or mixed DC/AC systems**, this power supply is an excellent investment. For **smaller or budget-conscious projects**, a lower-wattage model might be more appropriate.

---

### **Recommendation**

- You need **high-power (760W) 12V DC** for off-grid, RV, or marine applications.

- Your system requires **both high (12V) and low (3.35V) voltage outputs**.

- You prioritize **durability and Emerson s reliability** in harsh environments.

- You confirm the unit uses **MPPT charging** (if solar efficiency is critical).

- You have **proper ventilation** to manage heat dissipation.

- You only need **smaller power requirements** (e.g., under 500W), as a lower-wattage unit would suffice.

- You re unsure whether the unit uses **MPPT or PWM charging** (PWM may not be efficient enough for your needs).

- You lack **experience with high-voltage wiring**, as improper installation risks damage.

- You re on a **tight budget**, as higher-wattage units cost more upfront.

**Final Verdict:** This is a **solid, high-performance power supply** for demanding applications, but **research the exact model variant and installation requirements** before purchasing. For most serious solar or off-grid users, it is a **recommended choice**.

Details:

Appears to function on 122VAC power, and briefly shows up OK when starting a Sun server due technical difficulties, testing could not be continued that system. Previously in use by USA NASA.

part #: cf003002143 prices

• $34.49-$51.00

specifications serverpowe:

• brand: Emerson
• mpn: Cf00300-2143
• part type: Supply
• compatible brand: For Sun
• unit type: Lb
• item height: 1 In
• maximum output power: 760 W
• item length: 13.75 In
• unit quantity: 2.1875
• country of origin: China

seller serverpowe:

• # reviews: 8
• rating: 100.0%
• city: San Antonio, Texas

general serverpowe:

• condition: Used
• Enterprise Networking, Servers > Server Components > Server Power Supplies

shipping serverpowe:

• type: Calculated
• transit: 5-11 Days
• class: Standard
• cost: $14.91
• carrier: USPS
• service: USPS Ground Advantage

payments serverpowe:

• other
• wallet: Paypal
• credit card: Visa

returns serverpowe:

• policy: No Returns

offer serverpowe:

• sold: 0
• best offers: True
• started: March 12, 2026
• options: Ship-to-home
• availability: In Stock
• quantity: 2

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