Fire Rated Isolators | F300 Fire Resistant Isolators | Switch Disconnectors

F300 Fire Resistant Switch Disconnectors

Fire Rated Isolators

The F300 by Craig & Derricott is a range of fire rated isolators designed for installations where the LV electrical supply must be maintained for 2 hours at 300°C in the event of a fire. The isolators range from from 20A to 800A, these electrical isolation units are supplied in IP66/65 die-cast aluminium or IP65 sheet steel enclosures.

Fire rated isolators (switch disconnectors) are installed throughout industrial, building services and HVAC (ventilation fans) projects providing excellent switching ability even under fire conditions.

F300 fire resistant isolators (often referred to as switch disconnectors) are mounted near to the extraction fan for isolation purposes and have been tested in conjunction with the fan equipment to meet the strict thermal requirements of BS EN 12101-3.

♦ BS EN 12101-3 Standard | Smoke & Heat Control Systems. Specification for powered smoke and heat control ventilators (Fans).

All isolators are supplied in a Traffic Red (RAL 3020) polyester powder coat finish, with padlocking in both ‘Off’ and ‘On’ positions.

Isolator Options

‘N’ = switched neutral (Early make, late break) | ‘NL’ = Unswitched neutral | ‘EB = Early break auxiliary contacts
‘T’= Increased terminal capacity

F300 Fire Resistant Isolators

The below table shows all variations of the F300 range of fire resistant isolators including the rating, format, switch type, enclosure material and colour as well as the IP rating.

Isolator Rating	Format	Switch Mount	C&D Part Number	Encl. Size	Encl. Material	IP Rating	Encl. Colour
20A	2P	Lid mounted	F3SDR0202	A	Sheet Steel	IP65	Traffic Red Ral 3020
	3P		F3SDR0203
	3P+2E/B Aux		F3SDR0203EB
	3P+NL		F3SDR0203NL
	4P		F3SDR0204
	6P		F3SDR0206
	6P+2E/B Aux		F3SDR0206EB
25A	2P	Lid mounted	F3SDR0252	A	Sheet Steel	IP65	Traffic Red Ral 3020
	3P		F3SDR0253
	4P		F3SDR0254
20A	2P	Lid mounted	F3DDR0202	E	Die-CastAluminium	IP65	Traffic Red Ral 3020
	3P		F3DDR0203
	3P+2E/B Aux		F3DDR0203EB
	3P+NL		F3DDR0203NL
	4P		F3DDR0204
	6P		F3DDR0206	B
	6P+2E/B Aux		F3DDR0206EB
32A	2P	Lid mounted	F3DDR0322	B	Die-CastAluminium	IP65	Traffic Red Ral 3020
	3P		F3DDR0323
	3P+2E/B Aux		F3DDR0323EB
	3P+NL		F3DDR0323NL
	4P		F3DDR0324
	6P		F3DDR0326
	6P+2E/B Aux		F3DDR0326EB
40A	2P	Lid mounted	F3DDR0402	B	Die-CastAluminium	IP65	Traffic Red Ral 3020
	3P		F3DDR0403
	4P		F3DDR0404
63A	2P	Base mounted	F3SDR0632	C	Sheet Steel	IP65	Traffic Red Ral 3020
	3P		F3SDR0633
	3P+2E/B Aux		F3SDR0633EB
	3P+NL		F3SDR0633NL
	4P		F3SDR0634
	6P		F3SDR0636
	6P+2E/B Aux		F3SDR0636EB

‘N’  = switched neutral (Early make, late break)  |  ‘NL’ = Unswitched neutral  |  ‘EB = Early break auxiliary contacts

Rating	Format	Switch Mount	C&D Part Number	Encl. Size	Encl. Material	IP Rating	Encl. Colour
80A	2P	Base mounted	F3SDR0802	3A	Sheet Steel	IP65	Traffic Red Ral 3020
	3P		F3SDR0803
	3P+NL		F3SDR0803NL
	4P		F3SDR0804
	3P+2E/B Aux		F3SDR0803EB	D
	6P		F3SDR0806
	6P+2E/B Aux		F3SDR0806EB
125A	2P	Base mounted	F3SDR01252	D	Sheet Steel	IP65	Traffic Red Ral 3020
	3P		F3SDR01253
	3P+NL		F3SDR01253NL
	3P+2E/B Aux		F3SDR01253EB
	4P		F3SDR01254
	6P		F3SDR01256
	6P+2E/B Aux		F3SDR01256EB
160A	3P	Base mounted	F3SDR01603	5	Sheet Steel	IP65	Traffic Red Ral 3020
	3P+NL		F3SDR01603NL
	4P		F3SDR01604
	6P		F3SDR01606	7
200A	3P	Base mounted	F3SDR02003	5	Sheet Steel	IP65	Traffic Red Ral 3020
	3P+NL		F3SDR02003NL
	4P		F3SDR02004
	6P		F3SDR02006	7
250A	3P	Base mounted	F3SDR02503	5	Sheet Steel	IP65	Traffic Red Ral 3020
	3P+NL		F3SDR02503NL
	4P		F3SDR02504
	6P		F3SDR02506	7
315A	3P	Base mounted	F3SDR03153	6	Sheet Steel	IP65	Traffic Red Ral 3020
	3P+NL		F3SDR03153NL
	4P		F3SDR03154
	6P		F3SDR03156	9
400A	3P	Base mounted	F3SDR04003	6	Sheet Steel	IP65	Traffic Red Ral 3020
	3P+NL		F3SDR04003NL
	4P		F3SDR04004
	6P		F3SDR04006	9
630A	3P	Base mounted	F3SDR06303	8	Sheet Steel	IP65	Traffic Red Ral 3020
	3P+NL		F3SDR06303NL
	4P		F3SDR06304
	6P		F3SDR06306	9
800A	3P	Base mounted	F3SDR08003	8	Sheet Steel	IP65	Traffic Red Ral 3020
	3P+NL		F3SDR08003NL
	4P		F3SDR08004
	6P		F3SDR08006	9

Fire Rated Isolators – F300 Enclosed Switch-Disconnectors

Dimensions	Enclosure Size
	C	3A	D	5	6	7	8	9
Height (H)	250	350	480	550	750	750	900	900
Width (W)	250	300	240	450	450	600	600	600
Depth (D)	165	175	238	250	275	300	300	400
Vertical Fixing CRS (A)	188	270	400	470	670	670	820	820
Horizontal Fixing CRS (B)	188	220	160	370	370	520	520	520
Fixing Hole Size (Ø)	8.5	8.5	8.5	8.5	8.5	8.5	10.5	10.5
Foot Projection (E)	35	35	35	35	35	35	35	35
Foot Width (F)	58	58	58	58	58	58	58	58
Hole Centres (G)	13	13	13	13	13	13	13	13
Hole Centres (J)	58	58	58	58	58	58	58	58
Fixing Hole Size (ØØ)	8.5	8.5	8.5	8.5	8.5	8.5	10.5	10.5

➡ Related Products | Fire Rated Resistant Junction Boxes Enclosures | Fire Rated Resistant Plugs

Data Sheets

• Fire Rated Isolators Fire Resistant Switch Disconnectors – Data Sheet
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