SMA Sunny Boy Series - Connection for the Control of a Load

SMA Solar Technology AG Multifunction Relay
Technical Description ZusFunktNG-TB-en-25 11
3.2.2 Connection for the Control of a Load
In most operating modes, a load is switched on and off based on parameters and measured values
of the inverter. For these operating modes, connect the multifunction relay so that it is active in position
1-2 (operation). It controls a contactor (K1), which switches the operating current for the load.
Between the multifunction relay and the loads, only use contactors which meet the connection
requirements of the multifunction relay (see Section 3.4"Technical Data of the Multifunction Relay"
(page17)). You will find some examples in the following table.
Manufacturer Model Coil
ABB TAL 9 to 40 series 230 V
Hager ES 2xx 230V
Siemens Insta contactor 5TT5 8xx-0 230V
Siemens Insta contactor 5TT5 80x-2 24 V
L
N
B
F
(1 A)
K1
miniature
circuit-breaker