147234 / 8146655300
2018-08-16·BA00·III·en·03
Mounting and Installation
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Motor Protection Circuit Breaker
Series 8146/5-V27
Back-up fuse for devices with ammeter
Select the back-up fuse for devices with an integrated ammeter so that
a value 50 times higher than the rated current of the ammeter will not be
exceeded.
With undervoltage release
With undervoltage release and
ammeter
09157E00
09220E00
07243E00
Without ammeter
Without ammeter
With ammeter
No back-up fuse is required in the following cases:
• The undervoltage release is connected directly to the main contact
terminals of the moulded case circuit breaker.
• Safeguarding is not necessary in principle.
• A connection is established using bridges as shown.
09140E00
09029E00
8146/5-V27-2, 8146/5-V27-4, 8146/5-V27-6
8146/5-V27-1, 8146/5-V27-3, 8146/5-V27-5
1 3 5
2 4 6
I > I > I >
L1 L2 L3
T1 T2 T3
1 3 5
2 4 6
I > I > I >
L1 L2 L3
T1 T2 T3
U <
D1
D2
1 3 5
2 4 6
I > I > I >
L1 L2 L3
T1 T2 T3
U <
D1
D2
A
