4
14
NOTE
The analog signal cables and digital signal cables should be
separated and not entangled.
T1A/T1B/T
1C
T1A-T1B:
normally close (AC
contactor coil control contacts in
AC/DC power switching function)
T1A-T1C:
normally open Contact
capacity: AC 250 V/3 A, DC 30
V/1 A
Type
Terminal
Label
Function Description
Technical Specications
R e l a y
Output
T e r m i n a l
Relay output 1
485+/485
RS485 communication interface,
adopt Modbus protocol
R S 4 8 5 c o m m u n i c a t i o n
T2A/ T2C
T 2 A -T 2 C :
n o r m a l l y o p e n
Contact capacity: AC 250 V/3 A,
DC 30 V/1 A
Relay output 2
C o m m u n i
c a t i o n
T e r m i n a l
Main Circuit Terminal Description
SVB/M (≤ 2.2 kW)
SVB/4M, SVB/T (
＞
2.2-22 kW)
SVB/30T, SVB/37T
SVB/45T, SVB/55T
