
19
Chapter 2. Installation, Wiring
z
Example countermeasures against power surges caused by lightning
When using a line surge suppressor as a countermeasure against power surges
caused by lightning, connect it between Terminal 3 and the ground, as shown below.
The mounting brackets of the surge suppressor are crimp-on at the grounded side
and inside and in conducting state.
Therefore, they can be grounded by simply attaching them to a grounded metal
part such as the device cabinet.
When wiring to the power supply, use a lead wire of 0.75mm
2
(diameter: 0.18, strand
count: 30) or more, which complies with JIS C 3306. Attach #187 Faston receptacle at
one end and make the wire length as short as possible when connecting it.
• Connections when BC-R05A100 sub-base is used
• Connections when Q890A100 replacement base unit is used
2
3
Power
supply
Surge absorber
83968019-001
BC-R05A100
BC-R05A100
High-voltage side (L1)
Low-voltage side (L2(N))
Line surge absorber
Faston terminal side (187 series)
Mounting bracket side (grounded side)
NFB
2
3
NFB
to
Power
supply
to
Bur
ner C
on
tr
oller
Bur
ner C
on
tr
oller
1
2
Surge absorber
83968019-001
Q890A100
Q890A100
NFB
1
2
NFB
High-voltage side (L1)
Low-voltage side (L2(N))
Line surge absorber
Faston terminal side (187 series)
Mounting bracket side (grounded side)
Power
supply
to
Power
supply
to
Bur
ner C
on
tr
oller
Bur
ner C
on
tr
oller
Содержание AUR890 Series
Страница 58: ...50...
Страница 59: ...Revision History of CP SP 1380E Printed Edn Revised pages Description Feb 2015 1...