Fire rated switch disconnectors

General characteristics
Stringent requirements according to standards EN 12101-3 have originated a highly demanding research task aiming to reach optimal resistance to high temperature operation.

Enclosure
The enclosure has direct contact with the heating source and acts as a firewall diminishing direct heat into the switch.

 

Advanced materials
High performance polymers mixed with additives succeed to obtain high temperature switches able to resist erosion while offering stable dimensions under high temperature conditions (controlled CTE) while keeping component lubricity and mechanical performance.
• F300 switch can be identified by its Light brown exterior colour. Employed materials offer excellent characteristics to temperature changes.
• The switch body on the F400 and F600 present a larger size containing specific mechanical elements on materials resistant to high temperatures.
• We recognise F400 switches by its external black colour whereas class F600 switches are identifies by its white colour.


IP65 protection
Sealing injected on the enclosure lid ensuring an IP65 degree of protection according to EN 60529

Fire rated F300

The range of F300 and F400 switch disconnectors share the aluminium enclosures that offer a high IP and IK rating. The F300 range is limited at 40A and the F400 is limited to 125A when using aluminium enclosures. F400 higher ratings (160-250A) use lightweight sheet steel enclosures for easy handling and installation.

Fire rated F400

The stringent requirements on class F400 under fire conditions require the use of special composite materials that must combine good resistance to extreme temperatures while maintaining electrical characteristics requirements under IEC 947-3 when operating on normal conditions.

Technical Characteristics F300 & F400

25A (F3) 25A (F4) 40A 63A 100A 125A 160A 200A 250A
Thermal rating Ith A 25 32 40 70 100 125 160 200 250
Flexible wire mm2 2,5-6 2,5-16 2,5-16 6-50 6-50 6-50 70 95 120
Connection screws M4 M5 M5 M8 M8 M8 M8 M8 M8
Screw torque Nm 1,6 2 2 3,5 3,5 3,5 12 12 12
Terminals
Rated conditional 415V A 25/25 25/25 40/32 63/63 100/100 125/100 160** 200* 250*
kA 6 6 6 8 8 8/6 8 8 8
short-circuit current
Icc (r.m.s.) 500V A 25/25 25/25 40/32 63/63 100/100 125/100 160* 200* 250*
Max. Fuse size gG/aM
kA 6 6 6 8 8 8/6 8 8 8
Impulse voltage Uimp KV 4 4 4 4 4 4 4 4 4
Insulating voltage Ui V~ 690 690 690 690 690 690 690 690 690
Operating rating Ie A 25 25 40 63 100 125 160 200 250
AC 22 kW 3 x 230V 7,5 7,5 11 18,5 30 37 37 45 55
Motor load VA kW 3 x 415V 15 15 22 37 55 55 75 90 110
0,45 <cosØ <0,65 kW 3 x 500V 18,5 18,5 22 45 55 75 90 110 132
AC 23 kW 3 x 230V 5,5 5,5 11 15 18,5 18,5 30 38 –
Motor load VA kW 3 x 415V 7,5 11 18,5 22 30 37 52 65 –
0,45 <cosØ <0,65 kW 3 x 500V 15 15 22 30 37 45 65 80 –

Fire rated F600

Constructing F600 switch disconnectors does require the use of very special materials able to overcome the extreme conditions under this category. The enclosure is on cold-laminated steel resistant to 600ºC temperature.

 

Developing a particular mechanical block for high temperature has also improved switch behaviour when shortcircuit occurs while keeping the electrical characteristics when operating under normal conditions.

Technical Characteristics F600

25A 40A 63A 100A 125A
Thermal rating Ith A 32 40 70 100 125
Flexible wire mm2 2,5-6 2,5-16 6-50 6-50 6-50
Connection screws M5 M5 M8 M8 M8
Screw torque Nm 2 2 3,5 3,5 3,5
Terminals
Rated conditional 415V A 25/25 40/32 63/63 100/100 125/100
kA 6 6 8 8 8
short-circuit current Icc
(r.m.s.) 500V A 25/25 40/32 63/63 100/100 125/100
Max. Fuze size gG/aM
kA 6 6 8 8 8/6
Impulse voltage Uimp KV 4 4 4 4 4
Insulating voltage Vi V~ 690 690 690 690 690
Operating rating Ie A 25 40 63 100 125
AC 22 kW 3 x 230V 7,5 11 22 30 37
Motor load VA kW 3 x 415V 15 22 30 55 55
0,45 <cosØ <0,65 kW 3 x 500V 18,5 22 37 55 75
AC 23 kW 3 x 230V 5,5 11 15 18,5 18,5
Motor load VA kW 3 x 415V 7,5 18,5 22 30 37
0,45 <cosØ <0,65 kW 3 x 500V 11 22 30 37 45

3 Poles

Reference

Poles

Enclosure size

Cable entries

Rating

AB55221F6

3P

1AC

2xM25

 

25 A

AB55241F6

3P

1AC

2xM32

40 A

AB55261F6

3P

2AC

 

2xM40

63 A

AB55271F6

3P

2AC

100 A

AB55291F6

3P

2AC

125 A

 

 

6 Poles

Reference

Poles

Enclosure size

Cable entries

Rating

AB55621F6

6P

2AC

4xM25

 

25 A

AB55641F6

6P

2AC

4xM32

40 A

AB55661F6

6P

2AC

 

4xM40

63 A

AB55671F6

6P

2AC

100 A

AB55691F6

6P

2AC

125 A