Newmar 115-12-8 Power Supply 115/230VAC To 12VDC @ 8 Amps
Newmar 115-12-8 Power Supply 115/230VAC To 12VDC @ 8 Amps — Product description
Upgrade your marine communication and navigation systems with the rugged Newmar 115-12-8 power supply from the Heavy Duty Series. Engineered for the unforgiving conditions of commercial vessels, this reliable converter transforms 115/230 VAC input into stable 12VDC output at up to 8 amps intermittent or 5 amps continuous. Whether powering radars, VHF radios, or GPS units, it delivers consistent performance where downtime isn't an option.
Standout Features for Marine Reliability
- Versatile Input Selection: Effortlessly switch between 115 VAC and 230 VAC via a front-panel slide switch, adapting to various shore power or generator sources.
- Precision Voltage Regulation: Maintains output within 1% across all load and line conditions, ensuring sensitive electronics receive clean power without fluctuations.
- Ultra-Low Ripple: Just 40 mV peak-to-peak at full load, minimizing noise that could interfere with navigation signals or communication clarity.
- Built for Harsh Environments: Polyurethane conformal-coated circuit boards resist moisture and salt air, while the heavy-duty aluminum chassis with integral shock mounts withstands vibrations and impacts.
- Efficient Cooling Design: Large heat sink fins promote natural convection for cool, reliable operation, extending component lifespan in engine rooms or exposed decks.
- Comprehensive Protections: Safeguards against overvoltage, current overload (105% of rating), thermal runaway, and features input/output fusing for peace of mind.
- Adjustable Output: Fine-tune from 12.6 to 14.5 VDC internally to match your equipment's exact needs.
Detailed Specifications
| Parameter | Details |
|---|---|
| Input Voltage | 105-125/210-250 VAC (50-60 Hz), selectable; derate to 50% below 110/220 VAC |
| Output Voltage | 13.6 VDC nominal (adjustable 12.6-14.5 VDC) |
| Output Current | 8 A intermittent (20 min max, 20% duty), 5 A continuous (100% duty) |
| Ripple | <40 mV P-P |
| Regulation | ±1% line/load |
| Dimensions (H x W x D) | 6.0" x 4.6" x 8.5" |
| Weight | 10 lbs |
| Operating Temperature | 0-50°C (derate linearly from 100% at 40°C to 50% at 50°C); thermal shutdown at 85°C case temp |
Note: Part of the Heavy Duty Series, with higher-capacity siblings available for demanding setups.
Why This Power Supply Excels in Marine Applications
In the marine world, power quality directly impacts safety and operations. The Newmar 115-12-8 shines by providing "battery-like" DC power from AC sources, crucial for equipment that hates dirty power. Low ripple prevents false readings on charts or static on radios, while robust construction battles corrosion, humidity, and constant motion. Ideal for workboats, fishing vessels, ferries, and offshore platforms—anywhere nav and comms gear needs uninterrupted juice.
Real-World Advantages
- Compact footprint fits tight console spaces without sacrificing power.
- No need for external fans on this model—passive cooling keeps it whisper-quiet.
- Proven in salt spray, high humidity, and shock-prone environments for years of service.
- Easy front-panel access for voltage switching and monitoring simplifies setup and maintenance.
Operators trust it for its no-nonsense design: plug in, switch on, and forget about power worries.
Frequently Asked Questions
What makes the Newmar 115-12-8 suitable for marine use?
Its conformal-coated boards, corrosion-resistant aluminum case, shock mounts, and protections against environmental hazards ensure long-term reliability on boats exposed to salt, moisture, and vibration.
Can I adjust the output voltage on this power supply?
Yes, the 13.6 VDC nominal output is internally adjustable from 12.6 to 14.5 VDC to precisely match your 12V equipment requirements.
What is the difference between intermittent and continuous ratings?
Intermittent is 8A for up to 20 minutes at 20% duty cycle (e.g., short bursts), while continuous is 5A for 24/7 operation without pause.
Does it have built-in protections?
Absolutely—includes overvoltage, current limiting at 105% rating, thermal overload, and input/output fusing to protect both the unit and connected gear.
How low is the ripple, and why does it matter?
Ripple is under 40 mV peak-to-peak, critical for noise-sensitive marine electronics like radios and GPS to avoid interference and ensure accurate performance.
What input voltages does it support?
Switchable 115/230 VAC input (105-125/210-250 VAC range), with automatic derating below nominal levels for safe operation.
Is it cooled by a fan?
This model uses passive cooling via large heat sink fins for silent, maintenance-free operation; larger 'CD' models in the series add fans.
Heavy Duty Series
- Designed for powering 12 and 24 VDC communication/navigation equipment aboard commercial vessels where reliability is the primary consideration.
- Input voltage 115 or 230 VAC selected by slide switch on the front panel.
- Excellent Regulation and Ripple Spec: Output voltage maintained within 1% under all line and load conditions within rating; Ripple is less than 40 mV P-P. (12 volt) or 70 mV P-P (24-volt)
- Polyurethane conformal coated PC board and corrosion resistant heavy duty aluminum case with integral shock mounts assures survival in hostile environments
- Heat generated by semi-conductors is extracted and dissipated by large heat sink fins that maximize air contact for cool operation and long life of components.
- Supply and Load Circuit Protection: overvoltage, current limit; (set @ 105% of intermittent rating), thermal overload and input/output fusing.
- Thermally activated cooling fan on "CD" units.
Specifications
12 Volt Output
115-12-8 Input 115/230 VAC Output 8 amp intermittent 5 amps continuous Dimensions 6.0" h x 4.6" w x 8.5" d wieght 10lbs
115-12-20A Input 115/230 VAC Output 20 amp intermittent 8 amps continuous Dimensions 5.7" h x 4.8" w x 16.3" d weight 20lbs
115-12-35CD Input 115/230 VAC Output 35 amp intermittent 35 amps continuous Dimensions 6.5" h x 9.5" w x 14.0" d Weight 32lbs
24-Volt Output
115-24-10 Input 115/230 VAC Output 10 amp intermittent 4 amps continuous Dimensions 5.7" h x 4.8" w x 16.3" d weight 20lbs
115-24-18CD Input 115/230 VAC Output 18 amp intermittent 18 amps continuous Dimensions 6.5" h x 9.5" w x 14.0" d Weight 32lb
115-24-35CD Input 115/230 VAC Output 35 amp intermittent 35 amps continuous Dimensions 6.5" h x 13.0" w x 18.75" d Weight 60lbs
Output Voltage
12 V Models:
13.6 VDC (Internally adjustable 12.6-14.5 VDC)
Ripple: 40mV P-P ( @ 110-125 / 220-250 VAC input)
24 V Models:
24.5 VDC (Internally adjustable 21-27.5 VDC)
Ripple: 70mV P-P ( @ 110-125 / 220-250 VAC input)
Regulation All Models: 1% Line and Load (@ 110-125 / 220-250 VAC input)
Input Range
105-125/210-250 VAC (selectable), 50-60 Hz
Derate to 50% output below 110 and 220 VAC
Operating Temperature
0-50°C, Derate Linearly From 100% @ 40°C
To 50% @ 50°C Thermal shutdown @ 85°C Case temperature
Duty Cycle
Intermittent: 20 minutes max on time, 20% duty
Continuous: 24 Hours/Day 100% Duty
The heavy-duty series is designed to power 12 and 24 VDC communication/navigation equipment on commercial ships where reliability is the top priority. Input voltage 115 or 230 VAC is selected by
SKU: NVN-1001111
MPN: 115-12-8
UPC:
Technical specifications
| Brand | NewMar |
| Model | Newmar 115-12-8 Power Supply 115/230VAC To 12VDC @ 8 Amps |
| SKU / MFR# | 1001111 |
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