Quintum Technologies Tenor Call Relay SP - Manual (Page 36)

3-6 P/N 480-0048-00-10
Chapter 3: Installation
Connect Power (DC only)
Power Requirements
Power requirements for connecting the DC power to the Call Relay SP are as follows:
• Voltage range -40V to -60V DC
• Maximum current: 6 Amps
• You must provide upstream short circuit (over current) protection in case of accidental wire crossing or
reversed polarity connection.
Material Requirements
• Stranded copper wire that is a minimum of 16 AWG (American Wire Gage) or a maximum of 10 AWG
(min 1.3 mm 2 , max 5.0 mm 2 ) and insulation rated at a minimum of 90° C or better must be used for all
wires to the power inlet.
Connect Power
WARNING: Before making any changes to the wiring of your Call Relay SP, turn off the circuit breaker
and open the upstream overcurrent protection circuit at the source of the DC power feed.
NOTE: The electrical installation must comply with the National Electrical Code 1996 or other country
specific electrical installation.
Figure 3-4 DC Circuit Breaker and Power Inlet
The circuit breaker has a dual colored rocker. Pushing down on the left side of the breaker (ON/1) will close
the breaker and expose a red indicator that shows the user that the contacts are made (closed). To open the
contacts, push down on the right side (Off/O).
Tenor Call Relay SP
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Circuit Breaker
Power Inlet