Selection Of Magnetic Contactor; Grounding - Hanbell RC2-F Series Manual

for more detail.

5.4 Selection of magnetic contactor

Please refer to AC3 specification, compressor selection program and design conditions of system to choose suitable
contactor.

5.5 Grounding

There's a grounding terminal inside cable box. Please accurately connect it to grounding of control panel for the
system.
Grounding Terminal
Suggestion:
a. The regular setting of electric leak protection should be greater than 50mA; for a humid location, 25mA is
better.
b. Grounding voltage of casing should be no greater than 50V; for a humid location, the limit is 25V.
c. Grounding resistance should be no greater than 500 Ohm.
d. Air cut board (ACB) is regularly equipped with electric leak protection. Please refer to related settings for its
normal action.
e. If electric leak protection is active, please check if insulation of equipments is normal and if its wiring and
setting are correct. Please make sure nothing is wrong before turning on the power. If there are any questions,
please contact the supplier of equipments.
A
1
Earth Bolt
2
3
PW1:1,2,3
A:PTC
PW2:7,8,9
B:Pt100Ω / Pt1000Ω
(Option)
71
B
7
8
9