Siemens UL 489, UL1066 specifications Basic Functions ETU725 ETU727 ETU745, Setting range of the Ig

Communication-capable Circuit Breakers

WL Circuit Breaker

Basic Functions				ETU725		ETU727	ETU745
Parameter sets
		Selectable between
		parameter set A and B		–		–	–
LCD
		LCD, alphanumeric (4-line)		–		–	O
		LCD, graphic		–		–	–
Communication
		CubicleBUS integrated		–		–	✔
		Communication capability via
		MODBUS or PROFIBUS		–		–	✔
Metering function
		Metering function capability with
		Metering Function PLUS		–		–	✔
Display by LED
		Trip unit active		✔		✔	✔
		Alarm		✔		✔	✔
		ETU error		✔		✔	✔
		L trip		✔		✔	✔
		S trip		✔		✔	✔
		I trip		✔		✔	✔
		N trip		–		✔	✔
		G trip		–		✔	✔ (only with ground fault module)
		G alarm		–		–	✔ (only with ground fault module)
		Tripped by extended protection or
		protective relay function		–		–	✔
		Communication		–		–	✔
Signal contacts with external CubicleBUS modules
(Opto or relay)
		Overcurrent warning		–		–	✔
		Load shedding ON/OFF		–		–	✔
		Early signal of long-time trip (200 ms)		–		–	✔
		Temperature alarm		–		–	✔
		Phase unbalance		–		–	✔
		Instantaneous trip		–		–	✔
		Short-time trip		–		–	✔
		Long-time trip		–		–	✔
		Neutral conductor trip		–		–	✔
		Ground fault protection trip		–		–	✔ (only with ground fault module)
		Ground fault alarm		–		–	✔ (only with ground fault module)
		Auxiliary relay		–		–	✔
		ETU error		–		–	✔
Step for Settings via Communications or ETU Key Pad				Setting range of the Ig
from … to	step	from … to	step		Frame Size II	Frame Size III
0 … 1	0.1	1000 … 1600	50	A	100 A	400 A
1 … 100	1	1600 … 10000	100	B	300 A	600 A
100 … 500	5	10000 … max	1000	C	600 A	800 A
500 … 1000	10			D	900 A	1000 A
				E	1200 A	1200 A

✔	available
–	not available
O	optional

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WL MODBUS Communication and Electronic Accessories • January 2005