Schneider Electric ION7550 Wire Delta, 2½-Element, 2 PTs & 3 CTs, Single Phase Connection Diagram

PowerLogic ION7550 / ION7650 Installation Guide

3-Wire Delta, 2½-Element, 2 PTs & 3 CTs

LINE

A	LOAD
B
C

2A

		I11		I21				I41
V1 V2	V3 V4 Vref		I12		I22	I31	I32		I42	I51	I52

Fuse for N/- terminal required if its supply source is ungrounded Connect G terminal to ground for AC power source

3A

G L / + N/-

Use PTs for voltages over 600 V L-L

VOLTS MODE = Delta

Single Phase Connection Diagram

LINE

LOAD	Fuse for N/- terminal
	required if its supply
	source is ungrounded
	Connect G terminal
	to ground for AC
	power source
I4 Optional

277V L-N / 554 V L-L max. Use PTs for higher voltages. VOLTS MODE = Single

Using Potential Transformers

System Mode	Voltage Range	Requires PTs
	120 V L-N or 208 V L-L	no
Wye	277 V L-N or 480 V L-L	no
	347 V L-N or 600 V L-L	no
	over 347 V L-N or 600 V L-L	yes
	120 V L-N or 240 V L-L	no
Single Phase	277 V L-N or 554 V L-L	no
	over 277 V L-N or 554 V L-L	yes
Delta	up to 600 V L-L	no
	over 600 V L-L	yes

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