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Newmar Battery Chargers

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Phase Three
Battery Chargers
 
The Phase Three series represents a new dimension in charger design and performance, employing "smart" switching circuitry which puts batteries through the optimum three-step charge process, adapts for gel-cell or lead-acid batteries, features precise voltage compensation for varying battery temperature, is rated for continuous duty and is housed in a rugged stainless steel case.
 
Phase Three Chargers interact with batteries by regulating both voltage and amperage through each phase of the charging process, depending on battery state of charge, temperature, impedance, duration at high rate, system demand and battery type. The result is rapid battery recovery without overcharge, properly maintained and conditioned batteries, adaptability to changing charge conditions and long battery life.
 
Features
 
Charge Characteristics
  • 3-phase 'smart' charging: bulk, absorption, float.
  • lead-acid/gel-cell selector switch allows user to set optimum charge and float voltages based on battery type.
  • Temperature compensation adjusts output voltage based on battery temperature via remote sensor (optional).
  • Internal terminals for optional equalization timer connection.
  • High charge rate controlled by timer and current sensing circuit, switching to float rate even if there is a high continuous demand on any battery bank, preventing overcharge.
  • Charge cycle timer is initialized each time AC power is applied.
  • Charges battery and powers load simultaneously.
  • Multi-battery output, charges 3 banks on demand.
 
Circuit Characteristics
  • Conservative circuit design, switching semiconductors selected to withstand over 200% of nominal power level.
  • Continuous duty rated to 50 C, with automatic high temperature power reduction.
  • Operates on 115/230 VAC 50-60 Hz. Can be used anywhere in the world. Accepts wide variation on input, produces full output even from AC generator input.
  • Fully functional as power supply without battery connected; well regulated stand alone power source if batteries fail.
  • Low EMI/RFI emission, compatible with on-board electronics.
  • Units may be wired in parallel for high power systems.
 
Indicators/Monitors
  • Ammeter displays total charge output current.
  • Remote panel indicates output condition and allows manual reset of charge phase (optional).
  • Remote meter panel (optional) digitally displays battery voltage, up to 5 banks.
 
Protection
  • Stainless steel case with optional use drip shield.
  • Current limited won't overload when charging dead batteries.
  • Variable speed thermally controlled fan with dust filter.
  • Automatic high temperature power reduction above 50 C.
  • Circuit board polyurethane conformal coated for use in marine environments.
  • Timer limits absorption charge duration, preventing overcharge when under continuous load. (settable from 5 to 13 hours)

Model Specifications

 Model

 Input

Amps @ Full Load Volts

(115/230 VAC)

   Output

Battery

Capacity

Case

Size

Ref.

 Weight
Volts 

Amps

Continuous

Banks    Lbs. Kg. 
 PT-20 CE 4.3 / 2.2 12  20 3 40-200 B-14 11 5
PT-40 CE  8.5 / 4.3 12 40 3 80-400 B-14 12 5.5
 PT-70 CE 16 / 8 12 12 70 3 140-700 B-15 24 10.9
 PT-24-20 CE 8.5 / 4.3 24 20 3 40-200 B-14 12 5.5
 PT-24-35 CE 16 / 8 24 24 35 3 70-350 B-15 24 10.9

High Power System Specifications

Systems shown are only examples. Multiple units of any identical output voltage may be wired in parallel to create a custom system.

 System  Configuration

 Input* Amps @ Full Load

(115/230 VAC)

 Battery

Capacity

(Amp/Hour)

 Output
Volts Amps Banks
PT-110  PT-40 and PT-70 25/12.5  220-1100 12 110 3
 PT-24-55 PT-24-20 and PT-24-35 25/12.5 110-550  24 55 3
 PT-24-70 2 ea PT-24-35 32/16 140-700 24 70 3
 PT-24-105 3 ea PT-24-35 48/24 210-1050 24 105 3

 

Typical Charging Curve*


High Power System Configuration Examples

Systems shown are only examples. Multiple units of any identical output voltage may be wired in parallel to create a custom system.

PT 24-55 or PT 110 System   PT 24-70 System  PT 24-105 System
     

Input Range

85-135 / 170-270 VAC (selectable)

47-63-Hz

(Derate Models PT-24-20CE and PT-40CE from 560 watts @ 95 VAC to 500 watts @ 85 VAC.)

Output Regulation/Ripple*

Regulation:

2% Line/Load

Ripple:

12 Volt 250 mV P-P

24 Volt 500 mV P-P

* without battery attached

Temperature Ratings

-25 to +60 C

Derate linearly from 100% @ 50 C to 75% @ 60 C

Certifications*: CE, CSA

Approved To:

Safety: EN 60950, CSA C22.2 - No. 950

RF Emissions:

Conducted: EN 55014

Radiated: EN 50082, IEC 801-4

Transient Voltage: EN 50082-1, IEC 801-4

Flicker: EN 61000-3-3

Electro Static: EN 50082-1, IEC 801-2

Ignition Protected per USCG CFR 183.410

Caries the CE mark

*Certification By Nemko, National Testing Agency, Norway - Documentation available upon request.

Protection

  • Input fuse
  • Output fuse for reverse polarity protection
  • Forced air cooling
  • Current limiting
  • Drip Shield, Stainless Steel case
  • Time & load controlled high rate charge time out circuit
  • Automatic high temp power reduction starting @ 50 C & full load, with thermal shutdown @ 60 C
  • Temperature compensation (via optional sensor) Ignition Protected

Voltage Settings*

Battery Type Voltage
12 Volt 24 Volt
Float  Charge   Float Charge 
Gel Battery 13.6  14.0   27.2 28.0 
Lead Acid Battery 13.4 14.2 26.8 28.4 

Temperature Compensation: (-) 4 mV per cell per C

*Voltage settings shown @ 22 C; no voltage temperature compensation without optional sensor installed

 

Charge Cycle Phases

Bulk: High Current; Ascending voltage

Absorption: Decreasing current; Elevated voltage, time limited interval

Float: Low current: Nominal voltage

Case Size

Dimensions (including Drip shield)

 Size Inches Centimeters
 H  W  D  H  W  D
 B-14 14.1 9.5 4.0  35.8  24.1  10.2
 B-14* 15.2 9.5 5.3  38.6  24.1  13.5
B-15 17.2 12.0 6.7  43.7  30.5  17.0
 B-15* 18.3 12.0 7.8  46.5  30.5  19.8

*with drip shield installed

  
Options
  • Temperature compensation sensor with 10' wire and plug-in connector. Model: TCS
  • Remote panel with manual override of charge cycle, 10' wire and plug-in connector. Model: RP Dimensions: 4.75" x 3"; 12.1 x 7.6cm
  • Battery condition meter, selector switch for 5 banks. Model: Meter II Digital (specify 12 or 24 V) Dimensions: 5.25" x 3.75"; 13.9 x 19cm
  • Battery equalize (Installation option)

Optional Accessories

Temperature Compensation Sensor - Model TCS

 

Remote Indicator Panel - Model RP

 

Battery Condition Meter - Model METER-II DIGITAL