Sentinel 300P battery chargers provide new levels of DC power control, monitoring and protection for stationary engine starting and standby battery applications.

Advanced Sentinel charging features included as standard:
  • Switch mode charging technology: high power efficiency and low heat dissipation, plus wide supply voltage tolerance, in a compact and lightweight package.
  • Multistage charging: float, bulk, absorption and AutoBoost stages ensure no compromise between rapid charge recovery and long term battery capacity and life.
  • Low output ripple: <1% ripple, beneficial for vented lead acid & NiCd cells, essential for VRLA, and configurable for use as a stand-alone DC power supply.
Fire Pump units available. Please call.
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SNTL300P Model Sentinel 300P Programmable Switch Mode Battery Charger

SNTL300P Model Sentinel 300P Programmable Switch Mode Battery Charger
Price $643.58
ESNTL300PM Model Sentinel 300P Programmable Switch Mode Battery Charger

ESNTL300PM Model Sentinel 300P Programmable Switch Mode Battery Charger
Price $1,009.76
ESNTL300PCLM Model Sentinel 300P Programmable Switch Mode Battery Charger

ESNTL300PCLM Model Sentinel 300P Programmable Switch Mode Battery Charger
Price $1,446.56
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SNTL-RTC Model Remote Temperature Sensor
Price $45.00
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SNTL300P-FP Model Sentinel 300P Programmable Switch Mode Battery Charger - Fire Pump Approved
Price $805.92
Description N/A

Open-frame (protective cover) Sentinel 300P.
Input supply 110/120/220/240 VAC (50 Hz/60 Hz).
Output 10 A at 12/24 V.

 		N/A

Enclosed Sentinel 300P.
Input supply 10/120/220/240 VAC (50 Hz/60 Hz).
Output 10 A at 12/24 V.
Analog ammeter and voltmeter.

 		N/A

Enclosed Sentinel 300P.
Input supply 110/120/220/240 VAC (50 Hz/60 Hz).
Output 10 A at 12/24 V.
LCD readout, control/program buttons and CAN communications.
Plus analog ammeter and voltmeter.

 		N/A Remote temperature sensor with 9.8 feet/3.0 meter lead assembly, for automatic charge output temperature compensation. N/A
  • Open-frame (protective cover) Sentinel 300P
  • Input supply 110/120/220/240 VAC (50 Hz/60 Hz)
  • Output 10 A at 12/24 V
  • Fire Pump Approved
Model Number N/A SNTL300P N/A ESNTL300PM N/A ESNTL300PCLM N/A SNTL-RTC N/A SNTL300P-FP
Alternate Current (AC) Operating Voltage N/A 95 to 250 V N/A 95 to 250 V N/A 95 to 250 V N/A N/A 95 to 250 V
Operating Frequency N/A 47 to 63 Hz N/A 47 to 63 Hz N/A 47 to 63 Hz N/A N/A 47 to 63 Hz
Direct Current (DC) Nominal Voltage1 N/A 12 V24 V N/A 12 V24 V N/A 12 V24 V N/A N/A 12 V24 V
Maximum Current Limit N/A 10 A N/A 10 A N/A 10 A N/A N/A 10 A
Voltage Ripple N/A <1 % N/A <1 % N/A <1 % N/A N/A <1 %
Line Regulation N/A <2 % N/A <2 % N/A <2 % N/A N/A <2 %
Load Regulation N/A <2 % N/A <2 % N/A <2 % N/A N/A <2 %
Outputs x3 (x4 for Non-CAN Configurations) N/A 1 x SPCO (RL1), 1 x SPNC (RL2), 1 x SPNO (RL3), dry/volt-free contacts (common feed for RL1, RL2 & RL3) N/A 1 x SPCO (RL1), 1 x SPNC (RL2), 1 x SPNO (RL3), dry/volt-free contacts (common feed for RL1, RL2 & RL3) N/A 1 x SPCO (RL1), 1 x SPNC (RL2), 1 x SPNO (RL3), dry/volt-free contacts (common feed for RL1, RL2 & RL3) N/A N/A 1 x SPCO (RL1), 1 x SPNC (RL2), 1 x SPNO (RL3), dry/volt-free contacts (common feed for RL1, RL2 & RL3)
Standard Models (Non-CAN Configurations) N/A 1 x SPNC (RL4), dry/volt-free contacts standard output functions (charge fail, AC fail, low battery volts, high battery volts) are NFPA 110 compliant. N/A 1 x SPNC (RL4), dry/volt-free contacts standard output functions (charge fail, AC fail, low battery volts, high battery volts) are NFPA 110 compliant. N/A 1 x SPNC (RL4), dry/volt-free contacts standard output functions (charge fail, AC fail, low battery volts, high battery volts) are NFPA 110 compliant. N/A N/A 1 x SPNC (RL4), dry/volt-free contacts standard output functions (charge fail, AC fail, low battery volts, high battery volts) are NFPA 110 compliant.
Maximum Current Rating at 30 Direct Current (DC) Voltage2 N/A 1 A N/A 1 A N/A 1 A N/A N/A 1 A
Standards for Maximum Current Rating at 30 Direct Current (DC) Voltage N/A UL Class 2 N/A UL Class 2 N/A UL Class 2 N/A N/A UL Class 2
Inputs x2 N/A Closed to negative DC to activate, configurable function N/A Closed to negative DC to activate, configurable function N/A Closed to negative DC to activate, configurable function N/A N/A Closed to negative DC to activate, configurable function
Operating Temperature N/A -40 to 60 ºC-40 to 140 ºF N/A -40 to 60 ºC-40 to 140 ºF N/A -40 to 60 ºC-40 to 140 ºF N/A N/A -40 to 60 ºC-40 to 140 ºF
Display Viewability (Liquid Crystal Display (LCD) Models) N/A 0 to 50 ºC32 to 122 ºF N/A 0 to 50 ºC32 to 122 ºF N/A 0 to 50 ºC32 to 122 ºF N/A N/A 0 to 50 ºC32 to 122 ºF
Relative Humidity N/A 20 to 90 % N/A 20 to 90 % N/A 20 to 90 % N/A N/A 20 to 90 %
Electrical Safety N/A 2006/95/EC N/A 2006/95/EC N/A 2006/95/EC N/A N/A 2006/95/EC
Electromagnetic Compatibility N/A 2004/108/EC EN 55022 Class B (EN 61000-6-1, EN 61000-6-3) N/A 2004/108/EC EN 55022 Class B (EN 61000-6-1, EN 61000-6-3) N/A 2004/108/EC EN 55022 Class B (EN 61000-6-1, EN 61000-6-3) N/A N/A 2004/108/EC EN 55022 Class B (EN 61000-6-1, EN 61000-6-3)
UL Approvals N/A BBGQ: UL1236, CSA22.2 no. 107.2 BBHH: UL1236 SE N/A BBGQ: UL1236, CSA22.2 no. 107.2 BBHH: UL1236 SE N/A BBGQ: UL1236, CSA22.2 no. 107.2 BBHH: UL1236 SE N/A N/A BBGQ: UL1236, CSA22.2 no. 107.2 BBHH: UL1236 SE
Overall Width (W) N/A 6.22 in158 mm N/A 6.50 in165 mm N/A 6.50 in165 mm N/A N/A 6.22 in158 mm
Overall Height (H) N/A 8.19 in208 mm N/A N/A N/A N/A 8.19 in208 mm
Overall Height (H1) N/A N/A 11.81 in300 mm N/A 11.81 in300 mm N/A N/A
Overall Height (H2) N/A N/A 3.15 in80 mm N/A 3.15 in80 mm N/A N/A
Overall Depth (D) N/A 3.31 in84 mm N/A N/A N/A N/A 3.31 in84 mm
Overall Depth (D1) N/A N/A 4.92 in125 mm N/A 4.92 in125 mm N/A N/A
Overall Depth (D2) N/A N/A 5.12 in130 mm N/A 5.12 in130 mm N/A N/A
Fixing Holes (X) N/A 5.91 in150 mm N/A 2.50 in63.5 mm N/A 2.50 in63.5 mm N/A N/A 5.91 in150 mm
Fixing Holes (Y) N/A 5.91 in150 mm N/A 11.25 in285.5 mm N/A 11.25 in285.5 mm N/A N/A 5.91 in150 mm
Weight N/A 2.5 lb1.1 kg N/A 4.4 to 4.6 lb2.0 to 2.1 kg N/A 4.4 to 4.6 lb2.0 to 2.1 kg N/A N/A 2.5 lb1.1 kg
Industry Standards N/A CE cRU NFPA 110 N/A CE cULus NFPA 110 N/A CE cULus NFPA 110 N/A N/A CE cRU NFPA 110
Electrical Connections N/A
Electrical Connections for Sentinel 300P Programmable Switch Mode Battery Chargers
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Electrical Connections for Sentinel 300P Programmable Switch Mode Battery Chargers
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Electrical Connections for Sentinel 300P Programmable Switch Mode Battery Chargers
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N/A
Electrical Connections for Sentinel 300P Programmable Switch Mode Battery Chargers
Output Calibration Information N/A

Battery type is selected by circuit board DIP switches or SNTL300P-PCSUITE configuration software.

Calibration figures at 20 ºC. If temperature compensation is enabled, and remote SNTL-RTC temperaturesensor connected, output voltage automatically varies by 3 mV per cell per 1 ºC deviation from 20 ºC, within the range -10 to +50 ºC. Increasing temperatures give decreasing outputs; decreasing temperatures give increasing outputs.

 		N/A

Battery type is selected by circuit board DIP switches or SNTL300P-PCSUITE configuration software.

Calibration figures at 20 ºC. If temperature compensation is enabled, and remote SNTL-RTC temperaturesensor connected, output voltage automatically varies by 3 mV per cell per 1 ºC deviation from 20 ºC, within the range -10 to +50 ºC. Increasing temperatures give decreasing outputs; decreasing temperatures give increasing outputs.

 		N/A

Battery type is selected by circuit board DIP switches or SNTL300P-PCSUITE configuration software.

Calibration figures at 20 ºC. If temperature compensation is enabled, and remote SNTL-RTC temperaturesensor connected, output voltage automatically varies by 3 mV per cell per 1 ºC deviation from 20 ºC, within the range -10 to +50 ºC. Increasing temperatures give decreasing outputs; decreasing temperatures give increasing outputs.

 		N/A N/A

Battery type is selected by circuit board DIP switches or SNTL300P-PCSUITE configuration software.

Calibration figures at 20 ºC. If temperature compensation is enabled, and remote SNTL-RTC temperaturesensor connected, output voltage automatically varies by 3 mV per cell per 1 ºC deviation from 20 ºC, within the range -10 to +50 ºC. Increasing temperatures give decreasing outputs; decreasing temperatures give increasing outputs.
Output Calibration Specification Table N/A
Output Calibration Specification Table for Sentinel 300P Programmable Switch Mode Battery Chargers
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Output Calibration Specification Table for Sentinel 300P Programmable Switch Mode Battery Chargers
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Output Calibration Specification Table for Sentinel 300P Programmable Switch Mode Battery Chargers
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Output Calibration Specification Table for Sentinel 300P Programmable Switch Mode Battery Chargers
AutoBoost N/A

Triggered automatically on low charge levels, or manually by remote switch, AutoBoost temporarily increases the charge voltage before returning to float mode. Equalizing battery cell charge without overcharge and gassing, AutoBoost maximizes cell capacity and life.

 		N/A

Triggered automatically on low charge levels, or manually by remote switch, AutoBoost temporarily increases the charge voltage before returning to float mode. Equalizing battery cell charge without overcharge and gassing, AutoBoost maximizes cell capacity and life.

 		N/A

Triggered automatically on low charge levels, or manually by remote switch, AutoBoost temporarily increases the charge voltage before returning to float mode. Equalizing battery cell charge without overcharge and gassing, AutoBoost maximizes cell capacity and life.

 		N/A N/A

Microprocessor programmability for automatic or manual configuration of charge output voltages (12 or 24 V nominal), cell types/numbers and application - all in one standard model. Programming is by circuit board links or PC - based software configuration and monitoring tool.
Temperature Compensation N/A

Microprocessor programmability for automatic or manual configuration of charge output voltages (12 or 24 V nominal), cell types/numbers and application - all in one standard model. Programming is by circuit board links or PC - based software configuration and monitoring tool.

 		N/A

For remote charger control, and signaling of charge fail, high/low battery volts and mains fail faults. Standard output functions are NFPA 110 compliant. Non-standard input/output functions available to special order.

 		N/A

Ensures batteries are charged at the optimal voltage, which varies significantly with ambient temperature. Sentinel can measure temperature with a battery-mounted sensor and adjusts output voltage to prevent under or over charging.

 		N/A N/A

Microprocessor programmability for automatic or manual configuration of charge output voltages (12 or 24 V nominal), cell types/numbers and application - all in one standard model. Programming is by circuit board links or PC - based software configuration and monitoring tool.
Flexible Configuration N/A

For remote charger control, and signaling of charge fail, high/low battery volts and mains fail faults. Standard output functions are NFPA 110 compliant. Non-standard input/output functions available to special order.

 		N/A

For remote charger control, and signaling of charge fail, high/low battery volts and mains fail faults. Standard output functions are NFPA 110 compliant. Non-standard input/output functions available to special order.

 		N/A

Microprocessor programmability for automatic or manual configuration of charge output voltages (12 or 24 V nominal), cell types/numbers and application - all in one standard model. Programming is by circuit board links or PC - based software configuration and monitoring tool.

 		N/A N/A

Microprocessor programmability for automatic or manual configuration of charge output voltages (12 or 24 V nominal), cell types/numbers and application - all in one standard model. Programming is by circuit board links or PC - based software configuration and monitoring tool.
Inputs and Outputs N/A

For remote charger control, and signaling of charge fail, high/low battery volts and mains fail faults. Standard output functions are NFPA 110 compliant. Non-standard input/output functions available to special order.

 		N/A

Tested and approved by UL to: UL1236 - Battery chargers for charging engine-starting batteries, and CSA22.2 No. 107.2 - Battery chargers.

In order to consistently bring you the highest quality, full-featured products, we reserve the right to change our specifications and designs at any time. Murphy products and the Murphy logo are registered and/or common law trademarks of Enovation Controls, LLC. This document, including textual matter and illustrations, is copyright protected by Enovation Controls, LLC, with all rights reserved. (c) 2015 Enovation Controls, LLC. A copy of the warranty may be viewed or printed.

Dimensions for reference only. Use actual product for mounting template. For safe heat dissipation, mount product in orientation shown, with minimum air gap clearance of 1.5 in./40 mm above/below and 1.0 in./25 mm at each side.

 		N/A

For remote charger control, and signaling of charge fail, high/low battery volts and mains fail faults. Standard output functions are NFPA 110 compliant. Non-standard input/output functions available to special order.

 		N/A N/A

Options for backlit LCD readout, analogue metering and CAN 2.0B/SAE J1939 data communication; all models include RS485 communication for configuration and control.

The Sentinel 300P is available either as an open-frame, UL-recognized module for mounting in existing control panels, or as a UL-listed, wall-mounted stainless steel enclosure with LCD and analogue metering options. Electrical connection is by screw terminal blocks. On enclosed models, wiring harness access is by knock-out cable gland holes in the case side.
Display, Instrumentation and Communication N/A

Options for backlit LCD readout, analogue metering and CAN 2.0B/SAE J1939 data communication; all models include RS485 communication for configuration and control.

The Sentinel 300P is available either as an open-frame, UL-recognized module for mounting in existing control panels, or as a UL-listed, wall-mounted stainless steel enclosure with LCD and analogue metering options. Electrical connection is by screw terminal blocks. On enclosed models, wiring harness access is by knock-out cable gland holes in the case side.

 		N/A

Tested and approved by UL to: UL1236 - Battery chargers for charging engine-starting batteries, and CSA22.2 No. 107.2 - Battery chargers.

In order to consistently bring you the highest quality, full-featured products, we reserve the right to change our specifications and designs at any time. Murphy products and the Murphy logo are registered and/or common law trademarks of Enovation Controls, LLC. This document, including textual matter and illustrations, is copyright protected by Enovation Controls, LLC, with all rights reserved. (c) 2015 Enovation Controls, LLC. A copy of the warranty may be viewed or printed.

Dimensions for reference only. Use actual product for mounting template. For safe heat dissipation, mount product in orientation shown, with minimum air gap clearance of 1.5 in./40 mm above/below and 1.0 in./25 mm at each side.

 		N/A

Options for backlit LCD readout, analogue metering and CAN 2.0B/SAE J1939 data communication; all models include RS485 communication for configuration and control.

The Sentinel 300P is available either as an open-frame, UL-recognized module for mounting in existing control panels, or as a UL-listed, wall-mounted stainless steel enclosure with LCD and analogue metering options. Electrical connection is by screw terminal blocks. On enclosed models, wiring harness access is by knock-out cable gland holes in the case side.

 		N/A N/A

Options for backlit LCD readout, analogue metering and CAN 2.0B/SAE J1939 data communication; all models include RS485 communication for configuration and control.

The Sentinel 300P is available either as an open-frame, UL-recognized module for mounting in existing control panels, or as a UL-listed, wall-mounted stainless steel enclosure with LCD and analogue metering options. Electrical connection is by screw terminal blocks. On enclosed models, wiring harness access is by knock-out cable gland holes in the case side.
Note N/A

Tested and approved by UL to: UL1236 - Battery chargers for charging engine-starting batteries, and CSA22.2 No. 107.2 - Battery chargers.

In order to consistently bring you the highest quality, full-featured products, we reserve the right to change our specifications and designs at any time. Murphy products and the Murphy logo are registered and/or common law trademarks of Enovation Controls, LLC. This document, including textual matter and illustrations, is copyright protected by Enovation Controls, LLC, with all rights reserved. (c) 2015 Enovation Controls, LLC. A copy of the warranty may be viewed or printed.

Dimensions for reference only. Use actual product for mounting template. For safe heat dissipation, mount product in orientation shown, with minimum air gap clearance of 1.5 in./40 mm above/below and 1.0 in./25 mm at each side.

 		N/A

Tested and approved by UL to: UL1236 - Battery chargers for charging engine-starting batteries, and CSA22.2 No. 107.2 - Battery chargers.

In order to consistently bring you the highest quality, full-featured products, we reserve the right to change our specifications and designs at any time. Murphy products and the Murphy logo are registered and/or common law trademarks of Enovation Controls, LLC. This document, including textual matter and illustrations, is copyright protected by Enovation Controls, LLC, with all rights reserved. (c) 2015 Enovation Controls, LLC. A copy of the warranty may be viewed or printed.

Dimensions for reference only. Use actual product for mounting template. For safe heat dissipation, mount product in orientation shown, with minimum air gap clearance of 1.5 in./40 mm above/below and 1.0 in./25 mm at each side.

 		N/A

Tested and approved by UL to: UL1236 - Battery chargers for charging engine-starting batteries, and CSA22.2 No. 107.2 - Battery chargers.

In order to consistently bring you the highest quality, full-featured products, we reserve the right to change our specifications and designs at any time. Murphy products and the Murphy logo are registered and/or common law trademarks of Enovation Controls, LLC. This document, including textual matter and illustrations, is copyright protected by Enovation Controls, LLC, with all rights reserved. (c) 2015 Enovation Controls, LLC. A copy of the warranty may be viewed or printed.

Dimensions for reference only. Use actual product for mounting template. For safe heat dissipation, mount product in orientation shown, with minimum air gap clearance of 1.5 in./40 mm above/below and 1.0 in./25 mm at each side.

 		N/A N/A

Tested and approved by UL to: UL1236 - Battery chargers for charging engine-starting batteries, and CSA22.2 No. 107.2 - Battery chargers.

In order to consistently bring you the highest quality, full-featured products, we reserve the right to change our specifications and designs at any time. Murphy products and the Murphy logo are registered and/or common law trademarks of Enovation Controls, LLC. This document, including textual matter and illustrations, is copyright protected by Enovation Controls, LLC, with all rights reserved. (c) 2015 Enovation Controls, LLC. A copy of the warranty may be viewed or printed.

Dimensions for reference only. Use actual product for mounting template. For safe heat dissipation, mount product in orientation shown, with minimum air gap clearance of 1.5 in./40 mm above/below and 1.0 in./25 mm at each side.
  • 1 Programmable
  • 2 Resistive load