1.20A MPPT
2.Saving 20% System Panel Cost3.Bttery Selectable4.Max Solar PV Volt
SMTNL10/15/20/30/40
Function
Useing for signal Nightlight and Double NightlightOne programmable nightlight function;MPPT regulation (series type);Integrated temperature compensation;Three-state charging method;SOC and voltage controlled LVD;Solid-state circuit and load protection;Reverse polarity protection;Fully electronically protected.
The SMTNL series is a sophisticated solar charge controller family for low cost applications. The electronic circuit is equipped with a microcontroller that provides high-efficiency chargingtechnology together with a number of outstanding status display, warning and safety functions.The SMTNL series comes with two nightlight function mode. One of them is DIP switch that switch on the load output for a adjustable number of hours from dusk.The nightlight function is overridden by a battery deep discharge protection to avoid excessive discharge and damage of the battery.The temperature-compensated three-state MPPT charging method (boost-equalize-float) is now ajustable to sealed and vented lead-acid batteries.The low voltage disconnect function can be controlled either by SOC or by voltage.The battery status, charging status and load status are clearly indicated by 5 LEDs.The SMTNL Controller has a group DIP Switch for the Nightlight Controll.At the approach of the evening, after a short time delay, Negative Pole Automatic Power ON. User can define the time of load "ON" ,Normally timing measure time by the hour, Maximum is 8 Hours.
Model SMTNL10 SMTNL15 SMTNL20 SMTNL30 SMTNL40
Nominal voltage Automatic recognition 12/24V
Max. solar panel current 10A 15A 20A 30A 40A
Max. load panel current 10A 15A 20A 30A 40A
Boost voltage 14.5V/29.0V
Equalization voltage 14.8V/29.6V
Equalization voltage 13.7/27.4V
Deep discharge protection 11.0/22.0V Controlled by voltage
Load reconnect voltage 12.8/25.6V
Temperature compensation -4mV/cell×K
Self consumption <4mA
Max. wire size 16mm2(AWG#6)
Dimensions(W×H×D) 80×187×28mm(W×H×D)
Weight 300g
Temperature range -20 to +50
Type of protection IP42
MPPT Solar Controller (10A-40A)