其它防爆管件|防爆管件类

Series 8523/8 circuit-breakers are equipped with a permanently set short-circuit fast trip and a thermal overcurrent trip adjustable at the switch.

Note:
As "incomplete Ex electrical equipment" the miniature circuit-breaker must be fitted in "increased safety" standard enclosures. The installation shall be checked by a qualified expert.

Zones 1 & 2

Explosion protection

Gas explosion protection

II 2 G EEx de IIC

Dust explosion protection

I M 2 EEx de I

Certificates

Gas explosion protection

DMT 02 ATEX E 026

Dust explosion protection

LCIE 02 ATEX 6241 (see type 8146/5)

Enclosure material

Epoxy resin or polyester resin

Main contacts

3-pole

Rated working voltage

max. 690 V AC; 50 Hz / 60 Hz

Rated working current

0.1 A ... 25 A dependent on adjustment range

Switching capacity

abhängig vom gewählten Einstellbereich (AC)

230 V	400 V	500 V	690 V
6,4 kW	11,4 kW	14,4 kW	20,0 kW

Thermal overcurrent trip

Adjustable at switch; dependent on adjustment range

Electromagnetic fast trip

Adjustment range			Threshold values set at factory
0.16 A	...	0.63 A	7.5	...	12.0 I_n
1.0 A	...	2.5 A	9.0	...	14.0 I_n
4.0 A	...	6.0 A	10.0	...	15.0 I_n
9.0 A	...	25.0 A	12.0	...	17.5 I_n

Back-up fuse

Adjustment range from ... to	Highest rated current of the short circuit fuse if I_CC > I_CS
	at 230 V AC		at 400 V AC		at 440 V AC		at 500 V AC		at 690 V AC
	I_CS	gL, aM	I_CS	gL, aM	I_CS	gL, aM	I_CS	gL, aM	I_CS	gL, aM
0.1 A ... 0.16 A to 1.0 A ... 1.6 A	short-circuit proof, no fuse needed to I_CC = 100 kA
1.6 A ... 2.5 A									40 kA	25 A
2.5 A ... 4.0 A							60 kA	35 A / 40 A	10 kA	40 A
4.0 A ... 6.3 A					70 kA	50 A	40 kA	50 A	7 kA	40 A
6.3 A ... 9.0 A					50 kA	80 A	30 kA	80 A	5 kA	50 A
9.0 A ... 12.5 A			75 kA	80 A	45 kA	80 A	27 kA	80 A	4.5 kA	50 A
12.5 A ... 16.0 A			60 kA	100 A	40 kA	100 A	25 kA	100 A	4 kA	50 A
16.0 A ... 20.0 A			55 kA	100 A	35 kA	100 A	22 kA	100 A	3.5 kA	50 A
20.0 A ... 25.0 A			50 kA	125 A	30 kA	125 A	20 kA	125 A	3 kA	50 A
I_CS = Breaking capacity of rated operating short circuit I_CC = Projected short circuit current at the installation location

Mechanical life

10⁵ operations

Ambient temperature

- 20 °C ... + 40 °C

Terminal

Main contacts

1.5 mm²... 6 mm² flexible

1.5 mm² ... 10 mm² solid

Auxiliary contacts

0.75 mm² ... 1.5 mm² flexible

0.75 mm² ... 2.5 mm² solid

Power dissipation

max. 6.75 W

Other features

Switches are suitable for protection of "increased" safety motors; Switch operated by rotary actuator; clearly visible position indication; Phase failure sensivity. Due to shortened switch grip, release is ensured even if mechanism is locked. Breaking parameter: can be used as MAIN or EMERGENCY OFF switch. If necessary accessories are fitted.

Handle

Labelling:	0-I; 0-position can be padlocked in 3 positions
Colour:	Standard: grip and collar black
Colour:	Special: red grip and yellow collar (EM-STOP function)

Accessories

Auxiliary contacts

Options: none; 1 NC + 1 NO; 2 NC + 2 NO

Rated current

AC 15	230 V		400 V
	2 A		1 A
DC 13	60 V	110 V	220 V
	2.5 A	0.6 A	0.25 A

Rated voltage

max. 500 V AC

Undervoltage trip

Function

When power is lost, circuit-breaker trips; this prevents unwanted restarting, e.g. of a motor

Voltages

available control voltage U_C 50 Hz: 48 V; 60 V; 110 V; 230 V; 400 V; 415 V; 500 V

Pick-up 0.85 ... x U_C

Drop-out 0.7 ... 0.35 x U_C

Shunt trip

Function

For remote tripping of circuit-breaker; remote tripping by applying actuating voltage

Voltages

available control voltage U_C AC / DC: 24 V ... 60 V; 110 V ... 240 V

Dimension drawings (all dimensions in mm ) - subject to alterations

8523/81 Circuit-breaker for motor protection, Module width 1, without auxiliary contacts	8523/82 Circuit-breaker for motor protection, Module width 2, with auxiliary contacts

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