Sentry SFR Series Battery Chargers SFR1240/3X
Rated 3.5/5 based on 11 customer reviews

Sentry SFR Series Battery Chargers SFR1240/3X

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The line of Sentry SFR chargers is in an elite class, setting the standard for dependable battery chargers. Sentry chargers are designed to operate for decades in the harsh marine environment. They are completely field serviceable and come with a 2-year parts and labor warranty.

Sentry SFR battery chargers are designed for fully automatic, unattended operation, with charging outputs for Lead-Acid, AGM, Gel and Lead Calcium batteries. Once batteries reach full charge, Sentry chargers turn off completely. There is no output trickle to overcharge or dehydrate batteries. Additionally, optional temperature sensor reduces output to prevent overcharging.

Sentry chargers have negative ground with three outputs, allowing three separate banks of batteries to be charged simultaneously. A fourth output is available on some models.

For long voyages, Sentry SFR is the charger to have aboard. The manual/ automatic switch allows you to bypass the voltage regulating circuit, and most repairs can be accomplished with just a few spare parts.

Front-panel includes LED charge status and fault indicators and manual/ automatic selector switch.

All models are current limited and ignition protected for engine room installations.

Features

  • Available in 12VDC, 24 VDC and 32 VDC models
  • Charging outputs for Lead-Acid, AGM, Gel and Lead Calcium
  • Full cutoff when full charge reached - no “trickle” charge
  • Temperature sensor reduces output to prevent overcharging
  • Ignition protected for engine room installations
  • Three bank charging (4 bank option available for 60 amp models)
  • LED charge status and fault indicators
  • Optional volt and ammeter available
  • Current limiting protection
  • Drip proof cabinet
  • AC fuse protection
  • Automatic reset DC Breaker
  • Reliable ferro-resonant technology
  • Field repairable for long voyages
  • Two year parts and labor warranty
Model SFR1240/3X
Type of Battery Lead Acid/Gel/AGM
DC Output Voltage 12V
DC Output Current 40 A
Lead-Acid/Gel (CI/CO) 12.5/14.0
AGM (Cut In/Cut Out) 12.7/14.25
# Output Banks 3
AC Input Voltage *115/230 VAC
AC Input Current 7/3.5 A
Input Frequency 60 Hz
Height in/mm 14.50 / 368
Width in/mm 13.25 / 336
Depth in/mm 6.0 / 152
Weight lb/kg 28 / 12.7
DC Output Fuse Yes
AC Input Fuse ****10A
Temp Sensor Comp Yes
CE Approved Yes
Ignition Protected Yes
Internal Fan Yes
Current Limited Yes
Battery Isolation Yes
Charger Indicators LED
Full/Charging Indicator Yes
Fault Indicator Yes
Manual/Auto Switch Yes
Field Repairable  Yes
Warr.-Parts & Labor 2


NOTE: All Sentry models include a control circuit switch for charging Flooded Lead-Acid, AGM, Gel and Lead Calcium batteries. Refer to Sentry SFR manual for battery type charging.
*NOTE: voltage is changed with a rocker switch.
**NOTE: frequency is changed with a slide switch.
***NOTE: 4 outputs available on special order.
****NOTE: AC fuses rated slow blow at 250VAC.

The line of Sentry SFR chargers is in an elite class, setting the standard for dependable battery chargers. Sentry chargers are designed to operate for decades in the harsh marine environment. They are completely field serviceable and come with a 2-year parts and labor warranty.

Sentry SFR battery chargers are designed for fully automatic, unattended operation, with charging outputs for Lead-Acid, AGM, Gel and Lead Calcium batteries. Once batteries reach full charge, Sentry chargers turn off completely. There is no output trickle to overcharge or dehydrate batteries. Additionally, optional temperature sensor reduces output to prevent overcharging.

Sentry chargers have negative ground with three outputs, allowing three separate banks of batteries to be charged simultaneously. A fourth output is available on some models.

For long voyages, Sentry SFR is the charger to have aboard. The manual/ automatic switch allows you to bypass the voltage regulating circuit, and most repairs can be accomplished with just a few spare parts.

Front-panel includes LED charge status and fault indicators and manual/ automatic selector switch.

All models are current limited and ignition protected for engine room installations.

Features

  • Available in 12VDC, 24 VDC and 32 VDC models
  • Charging outputs for Lead-Acid, AGM, Gel and Lead Calcium
  • Full cutoff when full charge reached - no “trickle” charge
  • Temperature sensor reduces output to prevent overcharging
  • Ignition protected for engine room installations
  • Three bank charging (4 bank option available for 60 amp models)
  • LED charge status and fault indicators
  • Optional volt and ammeter available
  • Current limiting protection
  • Drip proof cabinet
  • AC fuse protection
  • Automatic reset DC Breaker
  • Reliable ferro-resonant technology
  • Field repairable for long voyages
  • Two year parts and labor warranty
Model SFR1240/3X
Type of Battery Lead Acid/Gel/AGM
DC Output Voltage 12V
DC Output Current 40 A
Lead-Acid/Gel (CI/CO) 12.5/14.0
AGM (Cut In/Cut Out) 12.7/14.25
# Output Banks 3
AC Input Voltage *115/230 VAC
AC Input Current 7/3.5 A
Input Frequency 60 Hz
Height in/mm 14.50 / 368
Width in/mm 13.25 / 336
Depth in/mm 6.0 / 152
Weight lb/kg 28 / 12.7
DC Output Fuse Yes
AC Input Fuse ****10A
Temp Sensor Comp Yes
CE Approved Yes
Ignition Protected Yes
Internal Fan Yes
Current Limited Yes
Battery Isolation Yes
Charger Indicators LED
Full/Charging Indicator Yes
Fault Indicator Yes
Manual/Auto Switch Yes
Field Repairable  Yes
Warr.-Parts & Labor 2


NOTE: All Sentry models include a control circuit switch for charging Flooded Lead-Acid, AGM, Gel and Lead Calcium batteries. Refer to Sentry SFR manual for battery type charging.
*NOTE: voltage is changed with a rocker switch.
**NOTE: frequency is changed with a slide switch.
***NOTE: 4 outputs available on special order.
****NOTE: AC fuses rated slow blow at 250VAC.

Shipping

We can ship to virtually any address in the world. There are restrictions on some products and some products cannot be shipped to international destinations.

Promotional Shipping (e.g., free shipping) is only applied to orders shipped within the contiguous United States and does not apply to Alaska, Hawaii, Puerto Rico or the US Virgin Islands. All shipments to Alaska or Hawaii and any other territories under the control of the United States may incur additional shipping charges based upon the weight of the package. Due to the distance, shipments will take a minimum of 5 business days to arrive. 

Expedited shipping costs displayed on our website are only an estimate. You will be notified if the actual shipping cost exceeds the estimated shipping cost. We will never charge an increased shipping fee without your consent! 

Returns

You may return most new, unopened items within 30 days of the delivery for a refund, returns made within 30 days of purchase will be refunded to the original form of payment. Returns initiated beyond 30 days of delivery will only be granted MMarine Online store credit. A 25% RESTOCKING FEE WILL BE APPLIED TO ALL RETURNS. We reserve the right to refuse returns or assess additional fees at our discretion, if the merchandise is not in the original packaging and ready-to-be-sold condition. 

If you need to return an item, please Contact Us with your order number and details about the item. We will respond with instructions on how to return the item(s). Please ensure the item(s) are returned in its original packaging and properly secured for return shipment. Insurance MUST be applied to your return and tracking information of your return must be supplied to MMarine Online via email at info@mmarineonline.com

Damages

We thoroughly inspect each item(s) prior to shipment to ensure and guarantee that the item(s) is free of any cosmetic damages and/or missing parts. While we take extra measures to ensure safe and secure shipment of your product, issues during shipment - while rare - are possible. 

Upon receiving shipments from MMarine Online and our partner shipping carriers, it is critical that you IMMEDIATELY inspect the package for damage PRIOR to signing for it and before accepting delivery from the carrier. If any damage is present, it MUST be noted on the carriers slip and reported to MMarine Online IMMEDIATELYIf damage is discovered after accepting a shipment, it MUST be reported to MMarine Online within 72 hours of the delivery. In the event that damage is reported beyond 72 hours of delivery, MMarine Online will not accept any responsibility in replacing and/or further servicing your order.

It is imperitive that you document the damage(s), this means photos of the exterior of the box MUST be supplied along with photos of the visible damage(s). It is crucial that ALL packaging- the bubble wrap, the box and pallet be saved, as required by the insurance company to file and successfully submit a claim of damage.

We will replace defective products with an exchange for the same model and style ONLY.

If your parcel is left without a signature and damage is found, please contact us within 48 hours at (305)999-5212 or via email at info@mmarineonline.com. Your package should be unopened, unused and remain in the condition in which it was delivered until you successfully report a claim with MMarine Online.

Return on Electronics - Serial Number Policy

On returns of all electronics, serial numbers must match with serial number of product originally shipped and will undergo inspection; if serial numbers are not matching, a refund will not be issued.