EXT-401 Assembly
Guardian’s EXT-401 Explosion Proof Telephone is coupled with our line powered CE20 Explosion Proof Ringer and a Back Plate.
The EXT-401 and CE20 Explosion Proof ringer provide safe and reliable communications for Class I Division 1 and Class II Division 1 areas deemed to be hazardous due to the presence of flammable gasses, vapors, dust or fibers.
Manual
Specifications
Certifications
Images
Standards Compliance
CSA 1514630 (LR 65547)
CSA
Class I, Division 1, Groups B, C and D;
Class II, Division 1 and 2, Groups E, F and G
CSA C22.2 No. 30 – M1986 Explosion-Proof Enclosures for Use in Class I Hazardous Locations
C22.2 No. 157 – 1992 – Intrinsically Safe Equipment for use in Class I Hazardous Locations
CLASS 4818 02 – SIGNAL APPLIANCES – Audible – For Hazardous Locations
CSA Certificate 1514630 (LR 65547)
Industry Canada – 1012 4339 A
Hearing-aid Compatible Equipment
Registration – 1012 4339 A
UL WZAT.E117495
UL
Class I, Groups B, C and D;
Class II, Groups E, F and G.
Telephones, Models 401UH301A, U301A, UH301B. Explosion-proof, provides intrinsically safe outputs when connected to Handset Part Nos. 301SC or , 301SCPB or Headset Model No. ISH1125.
UL Certificate WZAT.E117495
Part Nos. 301SC, 301SCPB Handset and Model No. ISH1125 Headset, Intrinsically safe when connected to Models 401UH301A, UH301B, U301A,
explosion proof telephones.
UL Certificate WZAT.E117495
Product Features
- Over sized buttons for gloves-on operation
- Corrosion and moisture resistant circuitry
- Intrinsically safe handset with heavy duty cord
- Field replaceable handset and fuse
- Explosion proof, no isolation barrier required
- Copper-free cast aluminum housing
- Temperature range -40°C to +60°C (-40°F to +140°F)
- Select Models (see data sheet for full line)
- P1011 CE20 Line Powered Ringer/Back Plate
- P1021 Ring Detect Relay (RDR)/CE20 Line Powered Ringer/Back Plate
- P4030 Volume Control/CE20 Line Powered Ringer/Back Plate
- P4032 Volume Control/Ring Detect Relay/CE20 Line Powered Ringer/Back Plate
