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Section 4. Accessory
Section 4. Accessory
Closing release
After charging, the closing release enables the energy stored
in the operating mechanism to release instantaneously,
allowing the circuit breaker to close quickly.
When used with the Latch check switch (LCS), the closing
release can operate on the circuit breaker only when the
charging spring is fully charged and the tripping latch is in the
re-trip (non-tripping) position. If both conditions are not met,
the closing signal will be invalid until the signal is removed
and re-applied.
• IZMY16/25/40
GB9074.8 M4x10
IZMY16
Power loss table of the closing release
Insulation
Rated control
Frame
voltage (Ui)
voltage U
1600 A
400 V
AC230/DC220 (0.85~1.1) U
AC24/DC24
2500 A
400 V
AC230/DC220 (0.85~1.1) U
4000 A
AC24/DC24
Shunt release
The shunt release enables the circuit breaker to open
remotely.
• IZMY16/25/40
GB9074.8 M4x10
IZMY16
6
IZMY Series Air Circuit Breakers Instruction Manual
GB29.2 2×M4×62
GB93 2×Φ4
GB97 2×Φ4
IZMY25/40
Pickup
Pickup
Acutating
transient
transient
(V)
voltage
current
power
s
2.2 A
500 W
s
(0.85~1.1) U
2.5 A
60 W
s
2.5 A
550 W
s
(0.85~1.1) U
5.1 A
264 W
s
GB29.2 2×M4×62
GB93 2×Φ4
GB97 2×Φ4
IZMY25/40
Power loss table of the shunt release
Insulation
Rated control
Frame
voltage (Ui)
voltage U
1600 A
400 V
AC230/DC220
AC24/DC24
2500 A
400 V
AC230/DC220
4000 A
AC24/DC24
Motor operator
The circuit breaker offers motor charging and automatic
recharging functions (manual charging is also available for the
circuit breaker)
• IZMY16/25/40
IZMY16
M5x12
Rated control voltage
U
(V)
s
Actuating voltage
Power loss
1600 A frame
2500 A frame
4000 A frame
Charging time (s)
MN013020EN
January 2024 www.eaton.com
Pickup
Acutating
transient
(V)
voltage
current
s
(0.85~1.1) U
2.2 A
s
(0.85~1.1) U
2.5 A
s
(0.85~1.1) U
2.5 A
s
(0.85~1.1) U
5.1 A
s
GB819 2×M4×10
GB5783 M6×60
IZMY25/40
GB93 Φ6
GB93 Φ6
AC24/
AC230/
DC24
DC230
(0.85~1.1) U
s
80 W
80 VA
150 W
150 VA
150 W
150 VA
5s
5s
Pickup
transient
power
500 W
60 W
550 W
264 W
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