ESC-120 Series - 108W Desktop SLA Battery Charger

Product catalog summary

Overview

The ESC/ESP-120 and ESC/ESP-240 series are desktop power supplies or chargers designed for 108W and 216W power outputs respectively. They support multiple DC voltage outputs (13.5V, 27V, 54V) with varying current ratings and include advanced protection and efficiency features.

Specifications

Models & Output Ratings: ESC/ESP-120 (108W), ESC/ESP-240 (216W).
DC Voltage Options: 13.5V, 27V, 54V.
Rated Current: ESC-120: 8A (13.5V), 4A (27V), 2A (54V); ESC-240: 16A (13.5V), 8A (27V), 4A (54V).
Current Range: 0 to rated current for each voltage.
Output Voltage Adjustment Range: 12~15V (13.5V model), 24~30V (27V model), 48~56V (54V model).
Ripple & Noise: Maximum ripple ranges from 120mVp-p to 400mVp-p depending on voltage.
Voltage Tolerance: Typically ±1.0% to ±2.0% including setup, line, and load regulation.
Setup and Rise Time: 200ms/100ms at full load (setup), 36ms/30ms at full load (rise time).
Hold Time: Typical hold time is 30-36ms at full load.
Input Voltage Range: 88~132VAC or 176~264VAC selectable by switch; DC input 249~370VDC.
Frequency Range: 47~63Hz.
Efficiency: Typical efficiency ranges from 81% to 85% depending on model and voltage.
Input Current: ESC-120: 3A/115VAC, 1.5A/230VAC; ESC-240: 4.5A/115VAC, 2.5A/230VAC.
Inrush Current: Cold start up to 40A.
Leakage Current: Less than 3.5mA at 240VAC.

Protection Features

Overload protection: 105~135% rated output power with fold-back current limiting and automatic recovery.
Overvoltage protection: Constant voltage limiting with automatic recovery.
Overtemperature protection: Output shutdown with automatic recovery after temperature normalizes.
Battery protections (ESC models only): Battery polarity, under-voltage, and over-voltage protections.
Short circuit protection.

Safety and Compliance

Certified to CSA60950-1, UL3101-1, IEC1010-1, EN61010-1 standards.
EMC compliance: EN55022 (CISPR22) Class B, EN61000-3-2, EN61000-3-3, EN61000-4-2/3/4, ENV50204 (light industry level, criteria A).
Withstand voltage: Input-output 3KVAC, Input-FG 1.5KVAC, Output-FG 0.5KVAC.
Isolation resistance: 100M Ohms at 500VDC between input-output, input-FG, output-FG.

Environmental Conditions

Operating temperature: -10°C to +60°C with output load derating.
Operating humidity: 20% to 90% RH non-condensing.
Storage temperature: -20°C to +85°C, 10% to 95% RH.
Vibration resistance: 10~500Hz, 2G, 10 minutes per cycle, 60 minutes each axis (X, Y, Z).

Mechanical and Reliability

Dimensions: 150mm (L) x 140mm (W) x 86mm (H).
Weight: ESC-120 approx. 1.38kg; ESC-240 approx. 1.5kg.
Mean Time Between Failures (MTBF): ESC-120 minimum 215,800 hours; ESC-240 minimum 200,600 hours; ESP-120 minimum 250,900 hours; ESP-240 minimum 226,600 hours (MIL-HDBK-217F at 25°C).
Cooling: No fan for ESC-120; forced air cooling with built-in DC fan for ESC-240.

Additional Features

Fixed switching frequency at 25kHz.
3-color LED load indicator for status monitoring.
AC input range selectable by switch.
Designed as component power supplies to be integrated into final equipment; final EMC compliance must be verified.
2-year warranty.

Notes and Measurement Conditions

All parameters measured at 230VAC input, rated load, and 25°C ambient temperature unless otherwise specified.
Ripple and noise measured with 20MHz bandwidth using 12" twisted pair wire terminated with 0.1µF and 47µF parallel capacitors.
Tolerance includes setup tolerance, line regulation, and load regulation.

Summary

The ESC/ESP-120 and ESC/ESP-240 series power supplies offer versatile DC output voltages with robust protection features suitable for battery charging and general power supply applications. They provide high efficiency, compliance with international safety and EMC standards, and reliable operation under various environmental conditions. The inclusion of battery-specific protections in ESC models and fan cooling in higher power models enhances their suitability for demanding applications.

Catalog excerpts

ESC-120 Series - 108W Desktop SLA Battery Charger-1

ESC/ESP-120/240 sries Features : AC input range selected by switch Protections:Short circuit/Over load/Over voltage/Overtemperature Battery under/Overvoltage and polarity protections(ESC only) Forced air cooling by built-in DC fan(240V only) Fixed switching frequency at 25KHz 3 color LED loading indicator SPECIFICATION MODEL ESC/ESP-120 ESC/ESP-240 DC VOLTAGE 13.5V 27V 54V 13.5V 27V 54V RATED CURRENT 8A 4A 2A 16A 8A 4A CURRENTRANGE 0 ~ 8A 0 ~ 4A 0 ~ 2A 0 ~ 16A 0 ~ 8A 0 ~ 4A RATED POWER 108W 108W 108W 216W 216W 216W RIPPLE & NOISE (max.) Note.2 120mVp-p 150mVp-p 400mVp-p 120mVp-p 150mVp-p 400mVp-p OUTPUT VOLTAGE ADJ. RANGE 12 ~ 15V 24 ~ 30V 48 ~ 56V 12 ~ 15V 24 ~ 30V 48 ~ 56V VOLTAGE TOLERANCE Note.3 ±2.0% ±1.0% ±1.0% ±2.0% ±1.0% ±1.0% LINE REGULATION ±0.5% ±0.5% ±0.5% ±1.0% ±0.5% ±0.5% LOAD REGULATION +2.0% ±1.0% ±0.5% ±2.0% ±1.0% ±0.5% SETUP, RISE TIME 200ms, 100ms at full load 200ms, 100ms at full load HOLD TIME (Typ.) 36ms at full load 30ms at full load VOLTAGE RANGE 88 ~ 132VAC/176 ~264VAC selected by switch 249 ~ 370VDC FREQUENCYRANGE 47 ~63Hz INPUT EFFICIENCY(Typ.) 81% 83% 84% 81% 84% 85% AC CURRENT (Typ.) 3A/115VAC 1.5A/230VAC 4.5A/115VAC 2.5A/230VAC INRUSH CURRENT (Typ.) COLD START40A LEAKAGE CURRENT <3.5mA/ 240VAC OVER LOAD 105 ~ 135% rated output power Protection type : Fold back current limiting, recovers automatically after fault condition is removed OVER VOLTAGE 15.5 ~ 18.2V 31 ~ 36.5V 62.1 ~ 72.9V 15.5 ~ 18.2V 31 ~ 36.5V 62.1 ~ 72.9V PROTECTION Protection type : Constant voltage limiting, recovers automatically after fault condition is removed OVER TEMPERATURE RTH580"C Detect on heatsink of Q1,Q2 power transistor RTH5S85°C Detect on heatsink of Q1,Q2 power transistor Protection type : Shun down o/p voltage, recovers automatically after temperature goes down BATTERY ESC series with bat. polarity, bat. Under voltage, bat. Over voltage protection FUNCTION FAN CONTROL NO FAN RTH5頢60°C FAN ON,50°C FAN OFF WORKING TEMP. -10 ~ +60°C(Refer to output load derating curve) ENVIRONMENT WORKING HUMIDITY 20 ~ 90% RH non-condensing STORAGE TEMP., HUMIDITY -20 ~ +85°C, 10 ~ 95% RH VIBRATION 10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes SAFETYSTANDARDS CSA60950-1(UL3101-1,IEC1010-1,EN61010-1) Approved WITHSTAND VOLTAGE I/P-O/P:3KVAC I/P-FG:1.5KVAC O/P-FG:0.5KVAC SAFETY & ISOLATION RESISTANCE I/P-O/P, I/P-FG, O/P-FG:100M Ohms/500VDC EMC EMI CONDUCTION & RADIATION Compliance to EN55022 (CISPR22) Class B (Note 4) HARMONIC CURRENT Compliance to EN61000-3-2,-3 EMS IMMUNITY Compliance to EN61000-4-2,3,4; ENV50204, Light industry level, criteria A MTBF 215.8K hrs min.(ESC-120) 200.6K hrs min.(ESC-240) 250.9K Hrs min.(ESP-120) 226.6K Hrs min.(ESP-240) MIL-HDBK-217F (25°C) OTHERS DIMENSION 150*140*86mm (L*W*H) PACKING 1.38Kg; 8pcs/12Kg/1.1CUFT(ESC-120) 1.5Kg; 8pcs/13Kg/1.1CUFT(ESC-240) NOTE 1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25°C of ambient temperature. 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1 uf & 47uf parallel capacitor. 3. Tolerance : includes set up tolerance, line regulation and load regulation. 4. The power supply is considered a component which will be installed into a final equipment. The final equipment must be re-confirmed that it still meets EMC directives. Sunpower Orion House, Calleva Park, Aldermaston, Berkshire, RG7 8SN Tel: +44 (0)118 981 1001 Fax: +44 (0)118 981 2002 E-mail: [email protected]

Open the catalog to page 1