Isolators – Ex d Hazardous Area Zone 1 & Zone 2 Isolators ATEX Certified
Zone 1 & Zone 2 Hazardous Area
Hazardous area Ex d isolators provide safe electrical isolation for low voltage power in Zone 1 & Zone 2 (gases) and Zone 21 & Zone 22 (dusts) environments.
ATEX certified isolators with Ex d protection are available with current ratings 16A-250A housed in either cast iron or cast aluminium enclosures.
Enclosures are supplied with cable entries which can be fitted with approved reducers to suit individual cable requirements. All load switching interiors are supplied as either 3P+N (switched neutral) or 6P and have AC23A ratings to BS EN 60947-3.
Auxiliary contacts are available for applications such as SCADA packages – enclosures are finished to RAL 7035 grey epoxy coating over etching primer.
Ex d Isolators
Ex d or “Flameproof” means that an isolator, enclosure or junction box is constructed and certified as Explosion Protected according to the “Flameproof” standard. Both Exe and Ex d isolators can be used on Zone 1 hazardous areas.
Craig & Derricott Ex d isolators are housed in cast iron (16A-63A) or cast aluminium (80A-250A) enclosures.
Flameproof Ex d isolators can be customised to accommodate specific cable entry requirements.
Isolators are certified to the following hazardous area classification according to the ATEX Directive:
- ATEX Ex II 2 GD Ex d IIB
- ATEX Ex tD A21 IP6X
ATEX certified isolators for use in Cat II hazardous area Zones 1, 2, 21, and 22 with temperature ratings of T5 or T6.
Hazardous Area Certifications & ATEX Approvals
- Certification Code: Ex d II 2 GD IIB T4, T5 or T6
- Certification Number: ITS 09 ATEX 16433X, ITS 09 ATEX 16436U
- Certification Standard: EN 60079-0, EN 60079-1, EN 61241-0 & EN 61241-1
- Operating Temperature: -20oC to +40oC
- Ingress Protection: IP65
ISOLATORS Hazardous Area Zone 1, 2, 21 & 22
Ex d Protection
The following selection table enables the specification of Isolators with ATEX Certification suitable for installation in hazardous area Zone 1 & Zone 2:
|Current Rating (A)||Format||Catalogue Number||Enclosure Ref||Supplied Entries||External Earth||Temperature Class|
|16||3P+N+2E/B||DGC0164EBZ1||G21||3 X M20||M6||T6||T5|
|25||3P+N+2E/B||DGC0254EBZ1||G21||4 X M20||M6||T6||T5|
|20||6P+2E/B||DGC0206EBZ1||G21||2 X M25 + 1 X M20||M6||T6||T5|
|40||3P+N+2E/B||DGC0404EBZ1||G22||2 X M25 + 1 X M20||M8||T6||T5|
|40||6P+2E/B||DGC0406EBZ1||G22||2 X M25 + 1 X M20||M8||T6||T5|
|63||3P+N+2E/B||DGC0634EBZ1||G22||2 X M25 + 1 X M20||M8||T6||T5|
|80||3P+N+2E/B||DGC0804EBZ1||G24||3 X M32 + 1 X M20||M8||T6||T6|
|100||3P+N+2E/B||DGC1004EBZ1||G25||3 X M32 + 1 X M20||M8||T6||T6|
|125||3P+N+2E/B||DGC1254EBZ1||G25||3 X M40 + 1 X M20||M8||T6||T6|
|160||3P+N+2E/B||DGC1604EBZ1||G25||2 X M32 + 1 X M20||M8||T6||T6|
|200||3P+N+2E/B||DGC2004EBZ1||G28||3 X M50 + 1 X M20||M10||T6||T6|
|250||3P+N+2E/B||DGC2504EBZ1||G28||3 X M50 + 1 X M20||M10||T6||T6|
Other entry configurations available on request.
➡ For complete technical data, format and hazardous area certification for Ex d isolators please see the product sections below.