7.3.9 VLT
®
24 V DC Supply MCB 107
A 24 V DC external supply can be installed for low-voltage supply to the control card and any installed options card,
enabling full operation of the LCP without connection to the mains.
24 V DC external supply specification
Input voltage range
24 V DC
±
15% (maximum 37 V in 10 s)
Maximum input current
2.2 A
Average input current for FC 302
0.9 A
Maximum cable length
75 m (246 ft)
Input capacitance load
10 uF
Power-up delay
0.6 s
The inputs are protected.
Terminal numbers:
•
Terminal 35: - 24 V DC external supply.
•
Terminal 36: + 24 V DC external supply.
When VLT
®
24 V DC Supply MCB 107 is supplying the
control circuit, the internal 24 V supply is automatically
disconnected. For more information on installation, consult
the separate instructions that accompany the optional
equipment.
130BF022.10
Illustration 7.14 24 V DC Supply Connection
Ordering Information
Design Guide
MG37N102
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Summary of Contents for VLT 380-500 V
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