Sonoff 4CH Pro User Manual

S6 is interlock /inching&self-locking switch: Toggle to the right(0), it
enters into interlock mode; Toggle to the left(1), it enters into inching
&self-locking mode.
K5 is inching/self-locking switches: From left to right, there are 1, 2, 3, 4,
correspondingly for channel 1 (CH1), channel 2 (CH2), channel 3 (CH3),
channel 4 (CH4). Toggle the switch down (0), the corresponding channel
enters into inching mode; Toggle the switch up (1), the corresponding
channel enters into self-locking mode.
 Please note that if S6 is toggled to the right(0), your 4CH Pro is in interlock
mode, it’s invalid to set K5.
K6 is used to set the delay time for inching mode. From left to right there
are 1, 2, 3, 4, correspondingly for CH1, CH2, CH3, CH4. Take Sonoff 4CH
Pro for example, toggle all switches down (0000), the inching time will
delay for 16s; Toggle all switches up (1111), the inching time will delay for
1s.

Sonoff 4CH Pro Specifications

General

Channels	4
Wi-Fi Standard	802.11 b/g/n
Max Current	10A per channel
Max Power	2200W per channel
Operating Temperature	-10°C to 40°C
Operating Humidity	5%-90% RH, non-condensing
Material	PC V0
Certification	CE, FCC, RoHS
Voltage Range	90-250V AC
Dimensions	145 x 90 x 40 mm