15
Chapter 2. Installation and Wiring
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Sample countermeasure for power surges caused by lightning
When using a surge absorber as a countermeasure for power surges caused by
lightning, connect it between terminal 3 and 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, the absorber can be
grounded simply by attaching the brackets to a grounded metal part such as the
combustion equipment housing. For wiring to the power supply, use 0.75 mm
2
or larger wires (diameter: 0.18, strand count: 30), in compliance with JIS C 3306.
Attach a #187 Faston receptacle at one end and keep the wire length as short as
possible.
This device
2
3
Power supply
Surge absorber
83968019-001
Surge absorber
83968019-001
2
3
Power supply
High-voltage side
(L1)
Low-voltage side
(L2 (N))
Line surge
absorber
Line surge
absorber
Faston terminal side
(187 series)
Faston terminal side
(187 series)
Mounting bracket side
(ground side)
Mounting bracket side
(ground side)
This device
Summary of Contents for AUR355
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