Issue:
Smart-UPS VT-G3500; installation, recommended breaker and cable sizes

Product line:
Smart-UPS VT-G3500, 10kVA, 15kVA, 20kVA, 30kVA

Environment:
Tower frame/ all serial numbers

Cause:
Product installation, recommended breaker and cable sizes and external communications cables.

Resolution:

Single Mains   

Connections     Mains/bypass Input     

10kVA             35A breaker/ 30 kAIC

15kVA             60A breaker/ 30 kAIC   

20kVA             80A breaker/ 30 kAIC

30kVA             125A breaker/ 30 kAIC

 

Dual Mains

Connections     Mains input

10kVA                 35A breaker/ 30 kAIC

15kVA                 60A breaker/ 30 kAIC   

20kVA                 80A breaker/ 30 kAIC

30kVA                 125A breaker/ 30 kAIC

 

Dual Mains

Connections     Bypass Input

10kVA                 35A breaker/ 30 kAIC

15kVA                 60A breaker/ 30 kAIC   

20kVA                 80A breaker/ 30 kAIC

30kVA                 125A breaker/ 30 kAIC

 

Any

Connections     Output

10kVA                 35 A fast acting class J fuse

15kVA                 60 A fast acting class J fuse

20kVA                 80 A fast acting class J fuse

30kVA                 125 A fast acting class J fuse

 

Recommended Wire Size

UPS/AWG size         Mains input (AWG) AC output (AWG)    DC input (AWG) 75 Degree C Wire

10kVA             8                      8                      1

15kVA             6                      6                      1

20kVA             4                      4                      1

30kVA             1                      1                      1

 

Recommended Cable Size and Lug

Cable Size (AWG)    Cable Lug Type        Crimping Tool         Die             Terminal Bolt Diameter

12                           YA12CL2TC38       MD7-34R                                W12CVT   0.2in/6mm

8                             YA8CL2TC38         MD7-34R                                W8CVT     0.2in/6mm

6                             YA6CL2TC38         MD7-34R                                W5CVT     0.2in/6mm

4                             YA4CL2TC38         MD7-34R                                W4CVT     0.2in/6mm

1                              YA1CL2TC38        MD7-34R                                W1CVT     0.2in/6mm

 

EPO Switch Wiring

The UPS must be connected to either dry contact or a 24VDC Emergency Power Off (EPO) Switch