20

Carlo Gavazzi Ltd.

RGC2, RGC3

RGC2, RGC3 DS ENG

05/10/20

Short circuit protection

Protection Co-ordination, Type 1 vs Type 2:

Type 1 protection implies that after a short circuit, the device under test will no longer be in a functioning state. In Type 2

co-ordination the device under test will still be functional after the short circuit. In both cases, however the short circuit has

to be interrupted. The fuse between enclosure and supply shall not open. The door or cover of the enclosure shall not be

blown open. There shall be no damage to conductors or terminals and the conductors shall not separate from terminals.

there shall be no breakage or cracking of insulating bases to the extent that the integrity of the mounting of live parts is

impaired. Discharge of parts or any risk of fire shall not occur.

The product variants listed in the table hereunder are suitable for use on a circuit capable of delivering not more than

100,000 Arms Symmetrical Amperes, 600 Volts maximum when protected by fuses. Tests at 100,000 A were performed

with Class J fuses, fast acting; please refer to the table below for maximum allowed ampere rating of the fuse. Use fuses

only.

Tests with Class J fuses are representative of Class CC fuses.

Protection co-ordination Type 1 according to UL 508

Part No.

Prospective short

circuit current

[kArms]

Max fuse size [A]

Class

Voltage [VAC]

RGC2..10, RGC2..25,

RGC3..10, RGC3..20,

RGC3..25

100

30

J or CC

Max. 600

RGC2..40,

RGC3..30, RGC3..40

40

J

RGC2..75,

RGC3..48, RGC3..65

608

J

8. Consult a Carlo Gavazzi sales representative for use of 70 A class J fuses

Protection co-ordination Type 2 for motor load applications

Part No.

Prospective short

circuit current

[kArms]

Ferraz Shawmut (Mersen)

Siba

Voltage [VAC]

Max fuse

size [A]

Part number

Max fuse

size [A]

Part number

RGC2..10

100

40

A70QS40-4

32

50 142 06 32

600

RGC2..25

40

A70QS40-4

32

50 142 06 32

RGC2..40

60

A70QS60-4

63

50 194 20 63

RGC2..75

100

A70QS100-4

125

50 196 20 125

RGC3..10

40

A70QS40-4

32

50 142 06 32

RGC3..20

40

A70QS40-4

32

50 142 06 32

RGC3..25

40

A70QS40-4

32

50 142 06 32

RGC3..30

40

A70QS40-4

40

50 194 20 40

RGC3..40

50

A70QS50-4

50

50 194 20 50

RGC3..48

70

A70QS70-4

63

50 194 20 63

RGC3..65

100

A70QS100-4

125

50 196 20 125