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Phone: +86 16626708626Description
Key Technical Specifications
| Parameter | Specification / Value |
| Explosion Protection (ATEX/IECEx) | Ex db IIC Gb / Ex tb IIIC Db |
| Zone Classification | Zone 1, Zone 2 (Gas) / Zone 21, Zone 22 (Dust) |
| Rated Voltage (U_e) | Up to 250 V AC / 220 V DC |
| Thermal Current (I_{th}) | 16 A |
| Contact Configuration | Changeover (1 NO / 1 NC) snap-action contacts |
| Enclosure Material | High-grade glass-fiber reinforced polymer |
| Degree of Protection | IP66 / IP67 (when mounted in suitable enclosure) |
| Terminal Type | Screw terminals, vibration-proof |
| Mechanical Life | Over 1,000,000 switching operations |
| Ambient Temperature Range | −55°C to +60°C (depending on temperature class) |
Product Introduction & Supply Chain Strategy
The BARTEC 07-7331-23010000 is an explosion-proof switch insert designed for installation in hazardous area control stations, pushbuttons, and selector switches. Engineered with a certified flameproof (Ex d) encapsulation, it prevents internal electrical arcing or sparks from igniting surrounding flammable gases or combustible dusts in Zone 1, Zone 2, Zone 21, and Zone 22 environments. Its robust snap-action contacts and wide operating temperature range make it a vital component in offshore oil rigs, chemical processing plants, and marine automation systems.
This product is a Brand New Surplus unit. It is not used, not pulled from a decommissioned plant, and not refurbished. Refurbished explosion-proof components carry severe hidden risks: prior thermal stress can compromise the flameproof joint clearances, while internal contact pitting can lead to unpredictable voltage drops under load. In hazardous processing facilities, a failed Ex switch element can trigger an emergency shutdown or create an unmitigated safety compliance hazard. Purchasing New Surplus guarantees 100% mechanical integrity, compliance with strict ATEX/IECEx standards, an operational lifespan of 10 to 15 years, and complete peace of mind.
Installation & Configuration Guide
1.Pre-Installation Setup and Safety:LOTO & Ex Area Safety.
Ensure the target area is verified gas-free or perform hot-work permit procedures. Isolate incoming power via Lock-Out/Tag-Out (LOTO). Put on a grounded anti-static wrist strap and inspect the BARTEC switch housing for any transport damage or cracked resin.
2.Removing the Legacy Switch Insert:Label Terminals & Remove Old Module.
Unbolt the control enclosure cover. Label all connected conductors attached to the screw terminals. Carefully loosen the terminal screws and unclip the old switch element from the mounting rail or actuator housing.
3.Mounting and Wiring the New Switch:Rail Mounting & Wire Termination.
Snap the new BARTEC 07-7331-23010000 onto the mounting frame until the locking tab engages securely. Connect the field wiring to the designated screw terminals according to the contact scheme (NO/NC), torquing to specification to prevent loose connections under vibration.
4.Testing and Commissioning:Enclosure Sealing & Continuity Test.
Verify terminal tightness and check circuit continuity across the NO/NC contacts while manually toggling the actuator. Re-seal the main Ex enclosure cover, ensuring all flameproof joint surfaces are clean, and re-energize the circuit to confirm proper control feedback.
07-7331-23010000
07-7331-23010000
Firmware/Software Versions & Upgrade Notes
- Operating Nature: Pure electromechanical snap-action switch insert; operates without firmware, software, or digital fieldbus configurations.
- Compatibility: Directly replaces BARTEC 07-7331 series switch inserts with matching electrical ratings and mounting profiles.
- Terminal Wiring Caution: Ensure fine-stranded conductors use insulated wire end ferrules to comply with IEC/EN 60079-14 explosion-protection installation standards.
Frequently Asked Questions (FAQ)
Q: Is this BARTEC 07-7331-23010000 switch insert brand new or refurbished?
A: This product is a Brand New Surplus unit. It is not used, not pulled from a decommissioned plant, and not refurbished. All units remain in unused condition with clean terminal contacts and intact factory encapsulation.
Q: Can this switch insert be used in Zone 1 hazardous areas?
A: Yes, the BARTEC 07-7331-23010000 features Ex d flameproof protection, making it fully certified for installation in Zone 1 and Zone 2 gas hazardous areas, as well as Zone 21 and Zone 22 dust environments when housed in an appropriately rated enclosure.
Q: Why shouldn’t I buy a cheaper refurbished Ex switch on the market?
A: Hazardous area equipment leaves no room for compromise. Refurbished switches frequently suffer from degraded housing seals, micro-cracks in the flameproof encapsulation, or eroded contact tips from past over-current events. Saving 20–30% on a refurbished part risks non-compliance during safety audits and potential catastrophic plant incidents.
Q: Does this unit fit directly into standard BARTEC ComEx control enclosures?
A: Yes, the 07-7331 series is engineered for standardized mounting inside BARTEC control stations, local control units, and pushbutton operator stations.
Q: What warranty is provided with this New Surplus item?
A: Every unit passes physical and electrical continuity inspections prior to shipment and comes backed by our standard 1-year functional replacement warranty.
