Newmar APS-70 Power Selector
Newmar APS-70 Power Selector — Product description
Imagine powering your critical electronics without ever worrying about a single point of failure. The Newmar APS-70 steps in as your reliable guardian, effortlessly choosing the strongest DC power source from two inputs to keep your systems running smoothly. Whether you're out on the water, hitting the open road in an RV, or managing industrial equipment, this solid-state powerhouse delivers uninterrupted performance by prioritizing the higher voltage source and switching seamlessly if one drops out.
Why Seamless Redundancy Matters for Your Setup
In demanding environments like marine vessels, emergency vehicles, or off-grid solar arrays, power glitches aren't just inconveniences—they can spell disaster. The APS-70 eliminates transfer delays, ensuring your radios, navigation gear, or control systems stay online. Its smart design monitors both sources continuously, routing the best available power to a single output while flagging alarms if a source weakens. No more manual intervention or clunky relays that wear out over time.
Key Features That Set APS-70 Apart
- Zero Transfer Time: Switches instantly to the backup source, keeping loads powered without interruption.
- Rugged Build: Anodized aluminum housing resists corrosion and handles harsh conditions, from salty sea air to dusty job sites.
- Simple Wiring: Connect two DC inputs to the studs, output to your load, and optional alarm wires for monitoring—installation done in minutes.
- Versatile Voltage Range: Handles 6-50 VDC systems with negative ground, perfect for 12V, 24V, or 48V applications.
- Compact and Lightweight: Fits tight spaces at just 3.25 x 4.5 x 3.1 inches and 2 pounds.
Real-World Applications
Boat owners love it for dual battery banks, ensuring VHF radios and fish finders never go dark. RVers pair it with alternator and solar inputs for reliable house loads. In security systems or remote telecom towers, it provides foolproof backup, outperforming traditional diode isolators by minimizing voltage drop and heat buildup. Industrial pros use it for PLCs and sensors where downtime costs real money.
Effortless Installation Tips
Mount it securely in a dry, ventilated spot. Use 6mm stud terminals for clean connections—crimp ring terminals to match your wire gauge (up to 70A continuous). Ground the negative properly, and attach alarm leads if you want remote alerts via relays or buzzers. Test by disconnecting one source; you'll see the output hold steady without a blink. Pro tip: Fuse both inputs individually to protect against shorts.
Technical Specifications at a Glance
| Model | Max Load | Voltage Rating | Stud Size | Dimensions (inches) | Weight (lbs) |
|---|---|---|---|---|---|
| APS-70 | 70 Amps | 6-50 VDC (neg. ground) | 6mm | 3.25 x 4.5 x 3.1 | 2 |
Boost Reliability and Slash Maintenance
Unlike mechanical switches prone to arcing or diode setups that waste power as heat, the APS-70's solid-state tech means longer life and efficiency. Users report years of flawless operation in vibration-heavy setups. It's not just a switch—it's peace of mind engineered for the long haul.
Frequently Asked Questions
What makes the APS-70 different from a standard battery switch?
Unlike manual or basic switches, the APS-70 automatically selects the higher voltage source with no delay, providing true redundancy without user input. It prioritizes the best input seamlessly.
Can the APS-70 handle marine or RV environments?
Yes, its corrosion-resistant anodized aluminum case and wide voltage tolerance make it ideal for boats, RVs, and other harsh, mobile applications.
Does it drop voltage significantly?
Minimal voltage drop thanks to solid-state design—far better than diodes. It always passes the higher input voltage to the load efficiently.
How do I know if a power source has failed?
Optional alarm sense wires on the input studs can connect to your monitoring system, buzzer, or light to signal loss of a source.
What wire size should I use for 70A loads?
Refer to AWG charts for your run length, but typically 4-6 AWG for short runs. Always fuse inputs near the batteries.
Is it suitable for solar and alternator inputs?
Absolutely—perfect for hybrid setups where solar might vary and alternator provides backup, always selecting the stronger source.
NewMar APS70 Attributes
Automatic Power Selectors
The Automatic Power Selector (APS) is a solid state device which enables installation of a seamless, redundant power system for critical electronic loads. It selects the higher voltage of two independent DC power sources and routes power to the load. Should one source falter or fail, the other will automatically supply the load with no transfer delay, operation continues uninterrupted.
Easy installation, two independent power sources are wired to the APS and routed in a single output to the vital load. Alarm sense wires can be easily attached to input studs providing loss of power source signal. Rugged, rust-proof anodized aluminum case.
| Model | Max Loads | Voltage Rating | Stud Terminal Size | Dimensions (Inches) | Weight (Lbs.) |
| APS-70 | 70 Amps | 6 - 50 VDC, neg. ground | 6mm | 3.25 x 4.5 x 3.1 | 2 |
""
SKU: NVN-1001151
MPN: APS-70
UPC:
Technical specifications
| Brand | NewMar |
| Model | Newmar APS-70 Power Selector |
| SKU / MFR# | 1001151 |
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