The EX Range represents Guardian’s line of explosion-proof industrial-grade telephones designed for the highest hazardous area classifications. These rugged units are specifically engineered to contain explosions within the equipment, preventing ignition of the hazardous atmosphere outside the unit.
Safe Communication When You Need It Most
The EX Range, particularly the EXT Explosion Proof Phone Series, provides safe and reliable communications for Class I Division 1 and Class II Division 1 areas deemed hazardous due to the presence of flammable gases, vapors, or dust. These phones are ideal for use in high-risk industrial settings such as oil refineries, chemical plants, and other environments where standard communication devices are not suitable.
- Explosion-proof construction meeting Class I, Division 1 and Class II, Division 1 standards
- Cast copper-free aluminum body with hybrid powder coat finish for superior corrosion resistance
- Sealed external wire connection method for maintaining explosion-proof integrity
- Externally accessible fuse (0.25 Amp 2AG Fast Acting) for easy maintenance
- Encapsulated circuitry impervious to water and corrosive agents
- Heavy-duty G type industrial handset with volume control
- Supports both DTMF and pulse dialing (40/60 or 33/66 @ 10 PPS)
- Waterproof enclosure rated CSA Type 4 for harsh environments
Parts and Accessories.
| Ordering PN | Model | Ring Detect Relay | CE20 Line Powered Ringer | Backplate | Handset/Headset | Buttons | Phone System | Certification | |
|---|---|---|---|---|---|---|---|---|---|
| P1011 | EXT-401 | No | Yes | Yes | Handset | Link & Redial | Analog | Class I Div 1 Group B,C,D; Class II Div 2, Group E,F,G | |
| P1021 | EXT-401 | Yes | Yes | Yes | Handset | Link & Redial | Analog | Class I Div 1 Group B,C,D; Class II Div 2, Group E,F,G | |
| P4011* | EXT-401 | No | No | No | Handset | Link & Redial | Analog | Class I Div 1 Group B,C,D; Class II Div 2, Group E,F,G | |
| P4012* | EXT-401 | No | No | No | Handset | Volume Control | Analog | Class I Div 1 Group B,C,D; Class II Div 2, Group E,F,G | |
| P4021* | EXT-401 | Yes | No | No | Handset | Link & Redial | Analog | Class I Div 1 Group B,C,D; Class II Div 2, Group E,F,G | |
| P4022 | EXT-401 | Yes | No | No | Headset | Link & Redial | Analog | Class I Div 1 Group B,C,D; Class II Div 2, Group E,F,G | |
| P4023 | EXT-401 | No | No | No | Headset | Link & Redial | Analog | Class I Div 1 Group B,C,D; Class II Div 2, Group E,F,G | |
| P4030 | EXT-401 | No | Yes | Yes | Handset | Volume Control | Analog | Class I Div 1 Group B,C,D; Class II Div 2, Group E,F,G | |
| P4031* | EXT-401 | Yes | No | No | Handset | Volume Control | Analog | Class I Div 1 Group B,C,D; Class II Div 2, Group E,F,G | |
| P4032 | EXT-401 | Yes | Yes | Yes | Handset | Volume Control | Analog | Class I Div 1 Group B,C,D; Class II Div 2, Group E,F,G | |
| P4033 | EXT-401 | No | No | No | Headset | Volume Control | Analog | Class I Div 1 Group B,C,D; Class II Div 2, Group E,F,G | |
| P4034 | EXT-401 | No | Yes | Yes | Headset | Volume Control | Analog | Class I Div 1 Group B,C,D; Class II Div 2, Group E,F,G | |
| P4035 | EXT-401 | Yes | No | No | Headset | Volume Control | Analog | Class I Div 1 Group B,C,D; Class II Div 2, Group E,F,G | |
| P4036 | EXT-401 | Yes | Yes | Yes | Headset | Link & Redial | Analog | Class I Div 1 Group B,C,D; Class II Div 2, Group E,F,G | |
| P4037 | EXT-401 | Yes | Yes | Yes | Headset | Volume Control | Analog | Class I Div 1 Group B,C,D; Class II Div 2, Group E,F,G | |
| P4038 | EXT-401 | No | Yes | Yes | Headset | Link & Redial | Analog | Class I Div 1 Group B,C,D; Class II Div 2, Group E,F,G |
| Ordering Part Number | Description | Note |
|---|---|---|
| 22AC-401 | 22″” Armored Handset Cord | Replaces Curly Cord |
| P4042 | Headset Kit | Replaces Handset |
Guardian Telecom provides rugged, intelligent communication and monitoring systems built for the harshest environments. When safety, security, and uptime matter most, we’re your first line of defense.
