Hach SC1500, Руководство пользователя, Страница: 14 / 86

Relay terminal connections to the mains circuit in permanent connection applications must have
insulation rated for a minimum of 300 V, 70 °C (158 °F). Terminals connected to the mains circuit
with a power cord connection must be double insulated and rated 300 V, 70 °C (158 °F) at both the
inner and outer insulation levels.
Table 4 Wiring information—relays
Terminal Description Terminal Description
1 Relay 1, NC 7 Relay 3, NC
2 Relay 1, common 8 Relay 3, common
3 Relay 1, NO 9 Relay 3, NO
4 Relay 2, NC 10 Relay 4, NC
5 Relay 2, common 11 Relay 4, common
6 Relay 2, NO 12 Relay 4, NO
NC = normally closed; NO = normally open
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