Cable diameter and length
Table 4: Length of 12V DC power cable (m) (screened SYT1-type)
Ø of wire
(mm)
Cross-section
area wire (mm²)
SB250-N SB2100-N SB450-N SB4100-N SB4200-N
0,6 0,3
159 159 136 136 136
0,9 0,6
359 359 307 307 307
1,4 1,5
800 800 684 684 684
Table 5: Length of 12V AC/DC heating cable (m) (screened SYT1-type)
Ø of wire
(mm)
Cross-section
area wire (mm²)
SB250-N SB2100-N SB450-N SB4100-N SB4200-N
0,6 0,3
94 94 47 47 47
0,9 0,6
211 211 105 105 105
1,4 1,5
470 470 235 235 235
Note:
If a single cable is used to supply power to several elements, the distance given should be
divided by the number of elements connected to the cable. If several wires of the same cross-
sectional area and polarity are placed in parallel, the distances given should be multiplied by the
number of wires.
Alarm and disqualification relay
When infrared signal is significantly reduced (for example, fog, heavy rain, etc.)
then the disqualification relay will be triggered after 60 s and the Alarm LED will
blink.
In case of obstruction of the beams (for example, by an object or a person) for
more than 60 s, first alarm relay will be triggered, then disqualification relay will
be triggered and alarm relay will be reset (see Figure 6 on page 9 for details).
8
SB Series AIR Beam Detectors Installation Manual
