FHF Ex-Telephone relay mTAR FHF11883121

FHF Ex-Telephone relay mTAR 11883121 NEW

NEW Item
Manufacturer Part Number: FHF11883121
Type Designation: mTAR (Explosion-Proof Telephone Relay)

FHF Ex Telephone Relay mTAR (FHF11883121) – Explosion-Proof Telephone Initiated Switch Relay for Indoor and Outdoor Hazardous Areas (Zones 1, 2, 21 & 22), IP66, Glass-Fibre Reinforced Polyester Housing (Category: Security & Explosion Protection / Model: mTAR)

The FHF Ex Telephone Relay mTAR (FHF11883121) by Eaton / Funke + Huster Fernsig is designed for secondary call signaling in analog telephone networks within hazardous environments. It provides volt-free switching contacts to automatically activate up to two external signaling devices, such as horns, sirens, or flashing beacons, upon receiving an incoming telephone call.

Constructed from electrostatically conductive, unpainted glass-fibre reinforced polyester, the IP66-rated housing ensures optimal protection in harsh industrial settings and Hazardous Zones 1, 2, 21, and 22 under ATEX and IECEx certifications. Built-in DIP switches allow users to set a customizable call pause bridging time (from approx. 1 to 9 seconds) for one of the relay contacts, keeping visual or audible alarms active during intervals between incoming ring pulses.

Key Features and Benefits

• Hazardous Area Approval: Certified under ATEX and IECEx for Zones 1, 2, 21, and 22 (II 2G Ex e ib mb IIC T4 Gb / II 2D Ex tb IIIC T135°C Db).
• Dual Signal Device Control: Features two potential-free switching contacts for driving external alarm devices (up to 250 VAC / 5 A).
• Adjustable Call Pause Bridging: Integrated slide switches enable custom pause bridging times ranging from 1 to 9 seconds.
• Indoor & Outdoor Deployment: Weatherproof IP66 enclosure engineered for extreme ambient temperatures from -40 °C to +70 °C.
• Telephone Line Powered: Powered directly by incoming AC ringing voltage from standard analog PSTN / TNV-3 telephone lines (30 V to 100 V AC).

Technical Specifications

• Manufacturer: FHF Funke + Huster Fernsig / Eaton Crouse-Hinds
• Manufacturer Part Number: FHF 118 831 21 (11883121)
• Model Designation: Telephone Initiated Relay mTAR
• Ex Protection Gas: II 2G Ex e ib mb IIC T4 Gb
• Ex Protection Dust: II 2D Ex tb IIIC T135°C Db IP66
• Certifications: ATEX / IECEx
• Power Supply / Signal: Ringing AC voltage from analog telephone lines (30 V to 100 V AC / 20 Hz to 68 Hz)
• Switching Contacts: 2x Volt-free contacts (max. 250 VAC, 5 A)
• Adjustable Modes: Relay 1 (tracks ring signal or approx. 1.5 s pulse) / Relay 2 (call pause bridging 1, 2, 3, 5, 6, or 9 s)
• Enclosure Material: Glass-fibre reinforced polyester (Colour: Black)
• Ingress Protection: IP66 according to IEC 60529 / EN 60529
• Cable Entries: 3x M20 x 1.5 (incl. 1x M20 x 1.5 blind plug)
• Operating Temperature: -40 °C to +70 °C
• Dimensions / Weight: 75 x 190 x 75 mm / approx. 1.1 kg
• Condition: Brand New in Original Box (NEW / OVP)

Package Contents

• 1x FHF Ex Telephone Relay mTAR (FHF 118 831 21) incl. cable glands – NEW in Original Packaging

Note on availability:
Many products are custom made by FHF due to their complexity.
The delivery time can vary. We try to provide the fastest and smoothest transaction for our customers.
The showed delivery time is only a rough estimation. Thank you very much for your understanding!