JULABO KRC 180 Refrigerators for chemicals - Manual (Page 15)

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9. ALARM RELAY
Caution :
Always turn off the unit and disconnect the mains cable from the power
source before performing any service or maintenance procedures.
The electronics module (on the rear of the refrigerator) contains a relay with floating contact:
Normal operation and Power OFF:
pins 2 + 3 of connector SK3 bridged
Alarm:
pins 1 + 3 of connector SK3 bridged
Contact loading:
Switching voltage, max.: 220 V - / 250 V
Switching current, max.: 2 A
Switching power, max.:
60 W / 125 VA
(non-inductive load)
Contact material: Ag Pd 60/40
10. ACCESSORIES
Mount for control unit for KRC 50/180
Plastic pan (for dripping water) for KRC 180