West Control Solutions Pro-EC44 - Manual (Page 22)

Pro-EC44 2-Loop Graphical Profile Controller & Recorder
Pro-EC44 Product Manual - 59540-1 October 2013 Page 15
Power Connections
WARNING:
CHECK THE INFORMATION LABEL ON THE CASE TO DETERMINE THE CORRECT VOLTAGE
BEFORE CONNECTING TO A LIVE SUPPLY.
CAUTION: This equipment is designed for installation in an enclosure that
provides adequate protection against electric shock. An isolation switch
should be located in close proximity to the unit, in easy reach of the
operator and appropriately marked.
Power Connections - Mains Powered Instruments
Mains powered instruments operate from a 100 to 240V (±10%) 50/60Hz supply. Power
consumption is 20VA. Connect the line and neutral as illustrated via a UL listed fuse type:
250V AC 1Amp anti-surge and a two-pole IEC60947-1 & IEC60947-3 compliant isolation
switch / circuit breaker located within easy reach of the operator and appropriately marked.
If relays switch mains voltage this should be separate from the instruments mains supply.
Figure 9. Mains Power Connections
Power Connections - 24/48V AC/DC Powered Instruments
24/48V AD/DC powered instruments will operate from a 20 to 48V AC or 22 to 55V DC
supply. AC power consumption is 15VA max, DC power consumption is 12 watts max.
Connection should be via a UL listed fuse type: 65v dc 350mAamp anti-surge and a two-pole
IEC60947-1 & IEC60947-3 compliant isolation switch / circuit breaker located within easy
reach of the operator and appropriately marked.
Figure 10. 24/48V AC/DC Power Connections