Specifications

MPPT CONTROLLER
BUILT-IN MPPT TRACKER FOR OPTIMIZING THE POWER TRANSFORMATION.

MPPT CONTROLLER

High converting efficiency higher than 97% for minimizing energy loss

Build-in MPPT tracker for optimizing the power transformation
Reversed current protection for preventing equipment damage
Automatic battery temperature compensation for long-term reliability
Capable of selecting different charging mode for various type of batteries
Capable of connecting additional DC load for wider applications
Three stage charge control system (bulk, absorption, and float mode) with temperature compensation
LED indicators display charge status in real time
Pulse Width Modulation (PWM) topology combined with a multi-stage charge control algorithm leads to superior charging and enhanced battery performance

MODEL	SMS-40A
Rated Voltage	12/24 VDC
Rated charge current	40A
Load current	15A
Input voltage range	15-55VDC
Max. PV open circuit array voltage	55VDC
Typical idle consumption	At idle < 10mA
Overload protection (DC load)	2.0Inom>5s 1.5Inom >20s 1.25*Inom temperature controlled
Bulk charge	14.6V(default)	29.2V(default)
Floating charge	13.4V(default)	26.8V(default)
Equalization charge	14.0V(default)	28.0V(default)
Over charge disconnection	14.8V	29.6V
Over charge recovery	13.6V	27.2V
Over discharge disconnection	10.8 V (default)	21.6V(default)
Over discharge reconnection	12.3V	24.6V
Temperature compensation	-13.2mV/°C	-26.4mV/°C
Lead acid battery settings	Adjustable
NiCad battery settings	Adjustable
Load control mode	Low Voltage Reconnect (LVR): Adjustable 2. Low Voltage Disconnect (LVD): Automatic disconnection 3. Reconnection: Includes warning flash before disconnect and reconnection
Low voltage reconnect	12.0-14.0 Vdc	24.0-28.0 Vdc
Low voltage disconnect	10.5-12.5 Vdc	21.0-25.0 Vdc
Ambient temperature	0-40°C(full load) 40-60°C(de-rating)
Altitude	Operating 5000 m, Non-Operating 16000 m
Protection class	IP21
Battery temperature sensor	BTS - optional remote battery temperature sensor for increased charging precision
Terminal size (fine/single wire)	#8 AWG