PQube 3 Installation Manual
Manual#: 851-000135
Version 3.4 – 08/11/2022 Page 30 of 47
Installing Split Core CTs with 0.333V secondary
Your PQube 3 comes standard with 8 current input channels, which are typically used to measure
L1, L2, L3, N, E, plus 3 additional single-phase channels. The current channels on your PQube 3 are
rated for 0.333V nominal inputs, and they are designed to be used with CTs with 0.333V secondary.
For POWERSIDE CTs, white wires are positive and black wires
are negative.
If using POWERSIDE Ultra-Precise CTs with the shielded
secondary wires, the red or white wire is positive and the black
wire is negative. Connect the shield conductor to ground. If
using another manufacturer’s CTs, verify which wires are
positive and negative before installing them.
Clamp the CT around the conductor. For all POWERSIDE CTs, the label faces towards the source.
.
Installing Flexible/Rogowski Current Sensor FCT-XX-3000A
The flexible AC current sensors (Rogowski coils) are perfect for applications where limited space
makes installation of traditional current transformers difficult or impossible. Their pliable split-core
design allows you to easily clamp around cables or bus bars.
• Plugs directly into your PQube 3—built-in integration but must be configured in setup.ini
• Flexible, IP65 weather resistant loop
• Four-meter cable shielded for noise immunity
• UL approved, RoHS, and WEEE compliant
• Nominal 30 A to 3000 A measurement range
• Typical amplitude accuracy: ±0.5% rdg
• Typical angle accuracy: ±1 deg
• No magnetic hysteresis (saturation or non-linearity)
• Calibrated to match PQube 3 impedance
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