PQube 3 Installation Manual
Manual#: 851-000135
Version 3.4 – 08/11/2022 Page 25 of 47
Maximum voltages
PQube 3 terminals
L1, L2, L3, N
Corresponds to 480V L-N / 830V L-L max for 3-phase, 4-wire
Wye/Star systems.
Corresponds to 690V L-L max for 3-phase, 3-wire Delta systems.
Corresponds to 480V L-L max for 1-phase, 2-wire Single Phase
systems.
Corresponds to 480V L-N / 960V L-L max for Split-Single-Phase, 3-
wire systems.
All voltage channels must be covered after installation.
Corresponds to 277V L-N / 480V L-L max for 3-phase, 4-wire
Wye/Star systems.
Corresponds to 480V L-L max for 3-phase, 3-wire Delta systems.
Corresponds to 240V L-L max for 1-phase, 2-wire Single Phase
systems.
Corresponds to 240V L-N / 480V L-L max for Split-Single-Phase, 3-
wire systems.
All voltage channels must be covered after installation.
Optional PQube 3 RLY
terminals
All other PQube 3
terminals
Rated for Single-Phase 100 to 240 Vac max. AC voltage input
terminal must be covered after installation.
Note: “CAT III” means Measurement Category III as defined in UL / IEC 61010-1
“CAT IV” means Measurement Category IV as defined in UL / IEC 61010-1