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Chapter 2. Installation, Wiring
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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 absorber are electrically connected internally
by crimping to the ground side of the absorber.
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.
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Connections when BC-R05A100 sub-base is used
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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)
2
3
Circuit
breaker
Circuit
breaker
to
Power
supply
to
Bur
ner C
on
tr
oller
Bur
ner C
on
tr
oller
1
2
Surge absorber
83968019-001
Q890A100
Q890A100
1
2
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
Circuit
breaker
Circuit
breaker
Содержание 81447514-001
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