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NewMar ERC1235 Emergency Relay Charger 12V 35 Amp Automatic Battery Backup

Manufacturer

NewMar

<h3>NewMar: Trusted DC Power Solutions for Over Five Decades</h3> <p>NewMar has established itself as a premier manufacturer of high-quality DC power products, bringing more than 50 years of engineering excellence to the automotive, marine, and telecommunications industries. Known for their rugged construction and intelligent charging technology, NewMar products deliver reliable performance in demanding environments ranging from emergency service vehicles to off-shore marine applications.</p> <p>The company's reputation is built on a foundation of innovation and quality control. With complete in-house manufacturing capabilities including CNC machining, PCB design and assembly, and comprehensive function testing, NewMar maintains exacting standards throughout the production process. This vertical integration ensures that every product meets the brand's stringent reliability requirements, making NewMar a trusted choice for professionals who depend on consistent power delivery.</p> <h3>Advanced Battery Charging Technology</h3> <p>At the heart of NewMar's product lineup is their proprietary Phase Three smart charging technology, which sets the standard for intelligent <a href="/11280-newmar-vehicle-battery-2476">vehicle battery</a> management. Unlike conventional chargers that can overcharge or undercharge batteries, NewMar's three-stage charging process—bulk, absorption, and float—optimizes charge cycles to maximize battery performance and extend service life. The chargers feature adaptive voltage regulation that automatically adjusts for different battery types including flooded lead-acid, AGM, and gel-cell configurations.</p> <p>NewMar battery chargers are engineered for hostile environments, with rugged stainless steel cases, polyurethane-coated circuitry for corrosion resistance, and sealed construction that prevents dust and moisture intrusion. These chargers can withstand the punishment of off-road vehicles, mining equipment, and marine installations where reliability is non-negotiable. Multiple isolated output banks allow simultaneous charging of separate battery systems, while integrated current limiting prevents damage from overloading.</p> <h3>Remote Starting and Power Accessories</h3> <p>Beyond battery charging, NewMar offers specialized power management solutions including <a href="/11280-newmar-remote-vehicle-starter-kit-14550">remote vehicle starter kits</a> designed for professional and recreational applications. These systems integrate with NewMar's broader power distribution ecosystem, providing seamless compatibility with battery integrators, DC converters, and power supplies.</p> <p>The brand's Battery Integrator products exemplify NewMar's engineering philosophy: intelligent solutions that solve real-world problems. These devices act as smart switches, connecting independent battery banks during charging while isolating them during discharge, allowing users to maintain separate house and engine-start batteries without voltage drop issues common to traditional diode isolators.</p> <h3>Built for Professional Applications</h3> <p>NewMar's commitment to quality has made their products the choice of professionals across multiple industries. From powering critical communications equipment in remote telecom sites to maintaining emergency vehicle battery systems in fire departments, NewMar products deliver when failure is not an option. The company's extensive product line includes DC power systems, inverter-chargers, UPS systems, and a full range of installation accessories, all backed by comprehensive warranties and technical support. Whether you're outfitting a commercial vessel, upgrading an emergency response fleet, or maintaining mission-critical equipment, NewMar provides the reliable DC power solutions that professionals demand.</p>

Part Number

ERC1235
06/01/2036 4:49 AM
Sale Price

$276.09

4 left at this price

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Usually delivered within 2 days

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Product Details

The NewMar ERC-12-35 Emergency Relay/Charger provides automatic battery backup for critical 12V DC communications and electronic equipment. This intelligent device ensures uninterrupted operation by instantly switching to standby battery power when AC power is lost or the primary power supply fails, while simultaneously maintaining battery charge during normal operation.

Key Features:

  • Fast-acting S.P.D.T. relay automatically switches to battery backup when DC voltage is lost
  • Built-in trickle charger maintains standby battery at full voltage (float voltage maintained at 0.7V below supply voltage)
  • 35 amp intermittent / 30 amp continuous relay rating for reliable power switching
  • Automatic reconnection to primary power supply when service is restored
  • Isolated inputs and outputs allow flexible mounting options
  • Compact design: 5-1/8" × 2-7/8" × 3-5/8"

Technical Specifications:

  • Input voltage range: 10.0-14.5 VDC
  • Relay rating: 30 amps continuous, 35 amps intermittent
  • Float trickle charge: 0.1 amps (typical)
  • Weight: 1.15 lbs

Installation Notes:

  • Mount as close to battery as possible in well-ventilated area away from battery gases
  • Can be mounted in any orientation without affecting operation
  • Use proper wire gauge: #8 AWG for 5 ft runs, #6 AWG for 10 ft, #4 AWG for 15-20 ft total wire length
  • Includes crimp ring lug connectors for secure wiring connections

Ideal for marine communications equipment, RV electronics, emergency radios, and any 12V DC application requiring uninterrupted power. Note that extended power outages may require a supplemental charger to fully restore battery charge.

Ordering process is relatively easy.

Super easy and super fast. Very satisfied

this is for my 18x7.5 ultra 403 s

Seems like a good selection at a fair price.

Correct parts both times I have ordered, as well as quick shipping

Good product, worked well with my boat live well project and also quick delivery in 2 days! Very satisfied.

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