Key Features

Benefits

• Supports energy harvest in changing light conditions
• Helps maintain output under partial shading
• Uses passive cooling with no fan
• Provides programmable and multi-stage charging options
• Applies temperature compensation to absorption and float voltages

Technical Summary

MPPT solar charge controller with 70A rated charge current, 150V maximum PV open-circuit voltage, and battery voltage auto-select for 12V, 24V and 48V systems. Nominal PV power is listed as 1000W at 12V, 2000W at 24V and 4000W at 48V. Maximum PV short-circuit current is 50A. Protection category is IP43 for electronic components and IP22 for the connection area. Dimensions for the MC4 model are 215 x 250 x 95 mm and weight is 3kg.

Installation Notes

MC4 models may require splitter pairs to parallel PV strings. Maximum current per MC4 connector is 30A. PV voltage must exceed Vbat + 5V for start-up, then Vbat + 1V to remain operating. If more PV power is connected, the controller limits input power. Protection category is IP43 for electronic components and IP22 for the connection area.

Efficiency

Maximum efficiency exceeds 98%. Ultra-fast MPPT is stated to improve energy harvest by up to 30% versus PWM controllers and up to 10% versus slower MPPT controllers.