24V/40A DIN Rail Type Buffer Module DBUF40-24 UL62368-1 IEC62368-1 & ( ) * + & & ,& - + . / 012 3 The DBUF40-24 buffer module is a supplementary device for regulated DC 24V power supplies. The buffer module utilizes maintenance-free electrolytic capacitors to store energy,thus eliminates the need of periodic replacement as compared to costlier batteries which also have shorter functional life span. The DBUF40-24 comes with comprehensive protection features like over voltage, over current and short circuit protections.Buffer modules can be connected in parallel to increase the output ampacity or the hold-.up time 4 & 4 . 5( )6 File Name:DBUF40-24-SPEC 2019-12-1924V/40A DIN Rail Type Buffer Module DBUF40-24 SPECIFICATION MODEL DBUF40-24 24Vdc DC NORMAL OPERATING VOLTAGE CHARGING VOLTAGE 23~30Vdc CHARGING CURRENT 900mA Max. CHARGING CURRENT CONSUMPTION AT MODE 100mA Max. STANDBY 25s Typ. CHARGING TIME 35s Max. DC NORMAL OPERATING VOLTAGE 2V2dc/-Vin1Vdc DC OPERATING VOLTAGE RANGE 22-29Vdc OUTPUT CURRENT(max.) 40A Outputcurrent 40A 0.1A BUFFER 20A BUFFER TIME MODE (Refer to Buffering Typ. 500ms 250ms 62s Curve at 22Vdc) 320ms Min. 160ms 42s 350mVp-p RIPPLE & NOISE (max.) Note.2 OVER VOLTAGE 31~.37 5V only,shut down o/p voltage 105%~125% rated output power at buffer mode OVER LOAD PROTECTION Protection type:/Shut down o p voltage, re-power on to recover SHORT CIRCUIT Protection type:/Shut down o p voltage, re-power on to recover TVS FOR SIGNALS (max.) 35V By internal MOSFET,,no damage recovers automatically after fault condition removed REVERSE POLARITY PROTECTION Buffering starts if terminal voltage falls below 22Vdc Fix 22Vdc(Default) SELECTABLE BY SWITCH Vin-1Vdc Buffering starts if terminal voltage is decreased by > 1Vdc +Vs - V(I) < 6Vdc: Buffer module ON +Vs - V(I) >10Vdc: Buffer module OFF CONTROL Inhibit()I 35Vdc /4mA Max. Charged ready: V(R)>+Vs - 2Vdc Unready: V(R)<1Vdc Ready(R) FUNCTION 35Vdc /10mA Max. Buffering: V(B)>+Vs - 2Vdc Other mode: V(B)<1Vdc SIGNALS Buffering (B) 35Vdc /10mA Max. Supply Voltage(+Vs) 10~35Vdc /10mA(Connected to +V or external voltage) ON Ready OFF Discharged LED STATUS DISPLAY 1Hz Charging Flashing 10Hz Buffering PARALLEL CONNECTION Refer to Typical Application Notes(Page 6) File Name:DBUF40-24-SPEC 2019-12-19