Street lamp solar charge controller

PDF File: KTF1220 controller
General Safety Instructions
   Danger of explosion due to improper handling of batteries! Corrosive hazard by leaking battery acid! Keep children away from batteries and acid! Smoking, fire and naked lights are prohibited when handling batteries. Prevent sparking and wear eye protection gear during installation.

   Solar modules generate power from light incidence. Even by low light incidence solar modules carry the full voltage. Therefore, work cautiously and avoid sparking during all work.

   Use only well-isolated tools!

   If the regulator is operated in a manner not specified by the manufacturer, the regulator’s constructive protective measures can deteriorate.The factory signs and marking may not be modified, removed or made unrecognizable. All work must be performed in conformity with the national electrical specifications and related local regulations!

   When installing the regulator in foreign countries, information concerning regulations and protective measures must be obtained from the relevant institutions / authorities.

   Do not begin the installation until you are sure that you have technically understood the manual and perform the work only in the order provided in this manual!

   The manual must be available during all work performed on the system, third parties included.

   This manual is a component of the system regulator and must be included with the regulator when given to a third person.

The Controller is equiped with a low power surge protection. The installer had to care for a efficient lightning protection.
Scope of Application
   The charge regulator is only suitable for regulating photovoltaic solar modules. Never connect another charging source to the charge regulator. This can destroy the regulator and / or source.
   The regulator is only suitable for the following chargeable 12V or 24V battery types:
-Lead storage batteries with liquid electrolytes
-Sealed lead storage batteries; AGM, GEL
   Important!The regulator is not suited for nickel Cadmium, nickel metal hydride, lithium ions or other rechargeable or non-rechargeable batteries.
   The regulator may only be used for the particular solar applications provided.Also,observe that the permitted, model-specific, nominal currents and voltages are not exceeded.
   Install the regulator near the battery on a suitable surface. The battery cable should be as short as possible and have a suitable cable diameter size to minimize loss, e.g. 4 mm² at 20 A and  2m length.A temperature compensated final charge voltage will extend the batteries lifetime and uses the optimum charge capacity.
   Do not install the controller to direct sunlight.
   To ensure the air confection on each side keep a distance of 10 cm to the regulator.
Connecting the Regulator
1.Connect the battery to the charge regulator - plus and minus
2.Connect the photovoltaic module to the charge regulator - plus and minus
3. Connect the consumer to the charge regulator - plus and minus
The reverse order applies when deinstalling!
An improper sequence order can damage the controller!
System indicator
1.Solar Indicator
 Off:without enough sun,charge off.
 Fast flashing:Buck/equalize charge
 Constant on:Acceptance charge
 Slow flashing:Float charge
2.Battery Indicator
 Green:Battery power is full(V>13.4V)
 Orange:Battery power is middle(12.4V<V<13.4V)
 Red:Battery power is low(11.2V<V<12.4V)
 Red-flashing:Battery over discharge.(11.2V<V)
3.Consume Indicator
 Off:Controller output closed
 On:Output normal
 Slow Flashing: Continues over-current
 Fast Flashing:Short-circuit
4.System mode
5.Setting button
Technical parameter
Model KTF1230 KTF4820 KTF4830
Rated charging current 30A 20A 30A
Rated discharging current 30A 20A 30A
Short-current protection 60A 60A 60A
System voltage 12V/24V Auto adapt 48V
Over current protection <1.3 maintain for 60s  <1.6 maintain for 5s
>1.6  shut down immediately
<1.3 maintain for 60s
<1.6 maintain for 5s
>1.6  shut down immediately
Stand-by lost <5mA <15mA
Charge voltage drop ≤0.26V ≤0.26V
Discharge voltage drop ≤0.15V ≤0.15V
Max solar panel votlage 21V 80V
Operating temperature -35℃ to +55℃ -35℃ to +55℃
Equalize charging voltage 14.8V 14.8V*4
Bulk  charging voltage 14.5V 14.5V*4
Acceptance charging voltage 14.2V 14.2V*4
Float charging 13.8V 13.8V*4
Charge return voltage 13.2V 13.2V*4
Discharge stop voltage 11.2V 11.2V*4
Discharge return voltage 12.6V 12.6V*4
Temperature compensation N/C N/C
Control mode PWM( Pulse Width Modulation ) PWM( Pulse Width Modulation )
Maximum wire size 12AWG 12AWG
Size/weight 140×95×33mm/165g 140×95×33mm/165g



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