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Smoke and Natural Ventilation Specialists     |     Established 1998

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Fire Rated Isolators

C&G FR Isolators.pdf

Specific Control Functions

Craig & Derricott has been producing switch disconnectors for more than 30 years. Combining there switching expertise with the specific requirements of the ventilation industry, led to the development of there "High Temperature Isolation" range. Excellent switching characteristics with high temperature environment contact stability makes this the ideal product range.

The critical role these switches perform is to maintain the power to the ventilation equipment, allowing safe evacuation of a business or public area. Often, these devices are mounted local to the extraction fans. As an assembly, it is essential they comply with the stringent thermal requirements of BS EN 12101 - 2003.

The complete range are housed in metal enclosures, the user can therefore be assured that there will be no distortion affecting the connecting cables and its support.

Fire Rated Isolators

EN12101-3 Certificate

ET354 issue 1 318498 AR F400 FR40.pdf

Tested In Accordance To The European Standard EN 12101-3 Standard


BS EN 12101-3 : 2003 specification calls for dynamic tests designed to check the performance of complete ventilation systems - the associated fire rating and fire performance of the electrical isolator is required to maintain the essential supply throughout the duration of the fire test. Fire rated isolators (F400 class) are available in 20amp, 32amp, 63amp, 125amp, 160amp and 200amp current ratings.


Design Features






Product Finishes



Suggested Applications

Catalogue References

Rating

Format

Assembly

Form

Catalogue No.

(Finished Red)

Temperature

Classification

Enclosure

Size



20A

2P


Lid

Mounted

In sheet

Steel

enclosure

FSDMR0202



F400



A

3P

FSDMR0203

3P+2EB Aux

FSDMR0203EB

3P + N

FSDMR0203N

4P

FSDMR0204

6P

FSDMR0206



32A

2P


Lid

Mounted

In sheet

Steel

enclosure


FSDDR0322



F400




B

3P

FSDDR0323

3P+2EB Aux

FSDDR0323EB

3P+N

FSDDR0323N

4P

FSDDR0324

6P

FSDDR0326

6P+2EB Aux

FSDDR0326EB



63A

2P









Base

Mounted

In sheet

Steel

enclosure


FSDMR0632



F400




C

3P

FSDMR0633

3P+2EB Aux

FSDMR0633EB

3P+N

FSDMR0633N

4P

FSDMR0634

6P

FSDMR0636

6P+2EB Aux

FSDMR0636EB



125A

2P

RS1BD11/HPHT



F400




D

3P

RS1BT21/HPHT

3P+2EB Aux

RS1BT31/2EB/HPHT

3P+N

RS1BT21/HPHT/NL

4P

RS1BQ21/HPHT

6P

RS1BY31/HPHT

6P+2EB Aux

RS1BY4½EB/HPHT


160A

3P

FSDMR1603


F300



4*

4P

FSDMR1604

6P

FSDMR1606

5*

6P+2EB Aux

FSDMR1606EB


200A

3P

FSDMR2003


F300



5*

4P

FSDMR2004

6P

FSDMR2006

7*

Specifications


According to BS EN 12101-3 (Smoke and Heat Control Systems), the specification which covers powered smoke and heat exhaust ventilators, there are several classes of fire performance duty. These fire ratings define specifically the temperature gradient and upper limit for the fire test as well as the time period over which the test will last.

Technical Detail for Specifications

Model Dynamics  and Dimensions

Application

Sym.

Unit

Category

20A

32A

63A

125A

Enclosure material/size

(See page 2 - Technical Data Sheet




Sheet Steel

(A)

Die-Cast

(B)

Sheet steel

(C)

Sheet steel

(D)

Rated thermal current

Ith

A


20.0

32.0

63.0

125.0

Rated Insulation voltage

Ui

V


690

690

690

690


Rated operational current (AC)


Ie


A

400/415V - AC21A

20.0

32.0

63.0

125.0

400/415 - AC22A

20.0

32.0

63.0

125

400/415V - AC23A

20.0

32.0

0

100.0

Rated operational power (AC)


kW

3 x 400/415V - AC23A

10.0

15.0

18.6

55.0 (AC23B)

Conditional short circuit current

Icc

kA


50.0*

50.0*

50.0*

50.0*

Minimum mechanical endurance



Cycles

>0.5 x 10

>0.5 x 10

>0.5 x 10

>0.5 x 10


Connecting capacity



Terminal type

Solderless

Solderless

Solderless

Solderless

mm²

Flexible cable

6.0

6

25.0

50.0

mm²

Stranded cable

6.0

6.0

25.0

50.0


0900766b80ae061e.pdf

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