SBM SX Series Installer's Instructions page 11

 Types of connection cable
Control unit to RP3 (and RP3 to RP3)
Control unit to RP32 (and RP32 to RP32)
RP3 and RP32 to heater
Control unit to sensor
Number of RP3

 Fixing RP3
 Wire RP3's as shown in the diagram below.
PRECEDING RP3
3x1.5 mm
Fuse
 Wire RP32's as shown in the diagram below.
PRECEDING RP32
4x1.5 mm
Fuses
LINK
units:
and RP32
units:
and RP32
2
N/L1
Ph/L2
Ph/L2
N/L1
SX HEATER
N/L1
2
Ph/L2
N/L1
Ph/L2
Fus50
50%
Ph/L2
N/L1
50%
2SX HEATER
TYPE OF CABLE
3 - conductor insulated with ground.
5 - conductor insulated with ground.
Use the prewired plug supplied with the
heater
green/yellow wire:
blue wire:
brown wire:
Use the sensor cable supplied by SBM.
(in 20m, 60m or 300m rolls)
1 RP3 per type B6, B8, B10, B12, B16, B20,
B24 and B32 heater.
1 RP32 per type B20-2, B24-2, B32-2 and B64-2 heater.
see instructions supplied in box.
3x1.5 mm
N/L1
Ph/L2
100%
N/L1
4x1.5 mm
Ph/L2
N/L1
Ph/L2
50%
100%
N/L1
Ph/L2
100%
EARTH
NEUTRAL
LIVE
2
FOLLOWING RP3
2
FOLLOWING RP32
11