1.    Electronic Characteristics

Table 3. Electronic characteristics

No. Item Unit Min. Typ. Max. Remark
01 Input voltage Vac 100 110/220 263
02 Input power W 77
03 Constant charge voltage Vdc 14.4 14.6 14.8
04 Float voltage(for lead acid battery only) Vdc
05 Constant charge current A 3.7 4 4.3
06 Charge complete current mA 300 400 500
07 Ripple voltage mV 250
08 Efficiency % 83 Full load

1.    Protect Characteristics

8.1    Output Over Voltage Protection

When the charger output voltage exceeds the maximum charging voltage, the charger enters the standby state protection. Troubleshooting can be automatically restored to normal working condition.

8.2    Output Over Current Protection

When the charger output current exceeds the maximum charging current, the charger enters the over current protection status. Troubleshooting automatically restored to normal working condition.

8.3    Short Circuit Protection

When the charger has short circuit at output, the charger enters short-circuit protection status. Troubleshooting automatically return to normal working condition.

8.4    Reverse Polarity Protection

If charger DC output terminal connect to battery reverse, fuse on the output side would be fuse, output circuit would be cut off. Replace the fuse, and then connect to battery correctly, charger would resume working.

2.    Environmental

9.1    Working Conditions

Ambient temperature: -5℃ ~ +40℃;

RH: 5% ~ 95%;

Max. altitude: 10000  meter;

Cooling: UY series chargers use of forced air cooling system. Under dustless and        ventilated conditions, the full load temperature rise not exceeding 40℃.

9.2    Storage Conditions

Ambient temperature: -40℃ ~ +70℃;

RH: 0% ~ 95%;

Max. altitude: 20000 meter.

1.    Reliability

Table 4. Reliability

No. Item Description Remark
01 MTBF average operating life ≥ 30000h 25℃
02 Anti-vibration 5mm/50Hz/600s vibration test PASS

2.    Safety

11.1Insulation Characteristics

Table 5. Insulation characteristics

Insulation resistant Input to output DC500V 50MΩmin (25℃, Humidity≤70%)
Input to case DC500V 50MΩmin (25℃, Humidity≤70%)
Output to case DC500V 50MΩmin (25℃, Humidity≤70%)
Hi-Pot Input to output 1500Vac 50Hz 1minute ≤10mA
Input to case 1500Vac 50Hz 1minute ≤10mA
Output to case 500Vac 50Hz 1minute ≤10mA

11.2Leakage Current

With max input and full load, the leakage current < 0.75m A, meet to Class II.


11.3Standard specifies

EN 55022:2006+A1:2007

EN 61000-3-2:2006+A1:2009+A2::2009

EN 61000-3-3:2008

EN 55024:1998+A1:2001+A2:2003

11.4Electromagnetic Interference

Conducted interference: EN55011.13.14-1.15.22.FCC part 15&18.VCCI;

Radiated interference: EN55011.13.22.FCCpart 15&18.VCCI/EN55013.EN55014-1.

11.5Electromagnetic Immunity

Anti-static: IEC/EN61000-4-2 8KV;

Pulse group: IEC/EN61000-4-4 2KV;

Lightning surge: IEC/EN61000-4-5 1.5KV;

Harmonic: IEC/EN61000-3-2 <25%.