The multi-function relay can be used to switch any load on for a set duration, once an export threshold has been reached. The
maximum relay current should not be exceeded (an additional contactor may be used for larger loads).
If a fault signal for a BMS system is required, the multi-function relay can be set to de-activated when a fault occurs.
12
Threshold Switch
APPLIANCE LIVE SWITCH
Volt-free contact
Can be used to switch live
feed to appliance.
NOTE:
If load exceeds 13A,
a separate contactor
must be used.
240V AC MAINS SUPPLY
From 16A MCB or
13A fused outlet
IMMERSION HEATER
Max. Load 3kW
CLAMP
Install onto incoming mains
Live cable to building
COMMS LINK
For linking several
ImmerSUN devices
ISOLATOR
Must be double-pole
5V GD
A
B
CT CT
COMMS
RELAY
MAINS
NO
C
NC
E
E
N
L
N LH
CLAMP
PWR
Fault Signal
TO BMS SYSTEM
Volt-free contact
Contact is closed when
unit Is powered.
Contact opens if fault
occurs.
240V AC MAINS SUPPLY
From 16A MCB or
13A fused outlet
IMMERSION HEATER
Max. Load 3kW
CLAMP
Install onto incoming mains
Live cable to building
COMMS LINK
For linking several
ImmerSUN devices
ISOLATOR
Must be double-pole
5V GD
A
B
CT CT
COMMS
RELAY
MAINS
NO
C
NC
E
E
N
L
N
LH
CLAMP
PWR
