Viking Handsfree Elevator Phone No Dial Pad - K-1500-EHFA

Viking Electronics K-1500-EHFA Handsfree Elevator Emergency Phone

Overview

The Viking Electronics K-1500-EHFA is a handsfree, no-dial-pad emergency phone engineered specifically for elevator cab installations where code-compliant one-touch emergency calling is required without exposing a keypad. Designed to drop into a standard elevator phone box measuring 10" high x 7" wide x 3" deep, the K-1500-EHFA eliminates the rewiring and custom fabrication that come with non-standard form factors — a practical advantage when you're retrofitting existing enclosures across a multi-floor modernization project. For a broader look at the Viking Electronics emergency phone line, including surface-mount and outdoor variants, the full catalog covers most commercial elevator and area-of-rescue scenarios.

Key Features

• Phone Line Powered (18V DC / 20mA minimum): The K-1500-EHFA draws power directly from the telephone line — no separate power supply, no conduit run for 120V, no battery backup to maintain. As long as the POTS line is live, the phone is live. That simplifies both the initial install and long-term maintenance in elevator machine rooms.
• No Dial Pad: Removing the dial pad isn't just an aesthetic choice — it eliminates misuse in high-traffic elevator cabs and keeps the interface unambiguous for any occupant. The call connects automatically, which is exactly what AHJs expect from elevator emergency phones under ASME A17.1.
• Standard Enclosure Fit (10" x 7" x 3"): The unit is sized to mount inside a standard elevator phone enclosure such as the Allen Tel outlet box. No custom cutouts, no adapters. For integrators working on multiple-cab jobs, that dimensional consistency keeps installation time predictable across every cab.
• Handsfree Operation with 70dB Speaker: The built-in speaker delivers approximately 70dB maximum at 1 meter — enough to be clearly audible inside a typical elevator cab without requiring the occupant to pick up a handset. Useful when occupants are mobility-impaired or unable to reach a handset.
• 25V AC RMS Minimum Ring Voltage: Compatible with standard POTS ring signals. No specialized line conditioning or ring boosters required on a normal copper loop.
• CPC Disconnect — 300ms Minimum: The Calling Party Control disconnect threshold of 300ms means the phone properly recognizes a far-end hang-up and returns to idle state cleanly, avoiding stuck-off-hook conditions that would block subsequent calls.
• REN 0.8A: At 0.8 REN, the K-1500-EHFA consumes a modest share of the line's ringing capacity. You can typically share a line with other low-REN devices without exceeding the 5.0 REN limit on most POTS loops — relevant if the elevator phone line also serves an area-of-rescue station.
• Operating Range 32°F to 90°F / 5–95% RH Noncondensing: Rated for the temperature and humidity range of a conditioned elevator shaft. Not rated for unheated shafts in cold climates — factor that into site assessment before spec.
• Gel-Filled Butt Connectors (x2): The included gel-filled connectors make the telephone line splice weatherproof and corrosion-resistant at the terminal point inside the cab. That's a detail that prevents nuisance failures months after installation.

Integration & Compatibility

The K-1500-EHFA connects to any standard POTS (analog) telephone line. It is not a VoIP device and does not support SIP. For deployments where the building has migrated to a hosted PBX or SIP trunk, a dedicated ATA (analog telephone adapter) providing a standard FXS port is required upstream. Pair this phone with a compatible emergency phone enclosure rated for elevator use to complete the installation package. If your project spans multiple floors or requires area-of-rescue compliance alongside elevator coverage, review the Viking area-of-rescue phone options for coordinated sourcing.

Frequently Asked Questions

Q: Does the K-1500-EHFA require a separate power supply?

A: No. The K-1500-EHFA is telephone line powered, drawing a minimum of 18V DC at 20mA directly from the POTS line. No external power source or battery backup is needed.

Q: What enclosure does the K-1500-EHFA fit?

A: It is designed to mount inside a standard elevator phone box measuring 10" high x 7" wide x 3" deep, such as the Allen Tel outlet box. The unit dimensions are 6.8" x 9.875" x 2.1".

Q: Does the K-1500-EHFA work with VoIP or SIP systems?

A: The K-1500-EHFA is designed for standard analog POTS lines only. VoIP or SIP deployments require an ATA providing a standard FXS analog port upstream of the phone.

Q: Is the K-1500-EHFA compliant with elevator emergency phone codes?

A: The phone is designed to meet the handsfree, no-dial-pad requirements typical of elevator emergency phone applications. Verify compliance with your local AHJ and applicable ASME A17.1 edition for your jurisdiction.

Q: What is the speaker output of the K-1500-EHFA?

A: The built-in speaker delivers approximately 70dB maximum at 1 meter — sufficient for clear two-way communication inside a standard elevator cab.

Q: Can the K-1500-EHFA share a telephone line with another device?

A: With a REN of 0.8A, it leaves headroom on a standard POTS loop (5.0 REN maximum). Sharing with another low-REN device such as an area-of-rescue station is generally feasible, but confirm total REN load before commissioning.

Karl Wilson

The K-1500-EHFA is the right call — literally — when your elevator modernization spec requires a handsfree emergency phone with no dial pad and you need it to drop into the existing 10" x 7" x 3" cab enclosure without custom work. The telephone line power requirement (18V DC minimum at 20mA) means zero separate power infrastructure in the shaft, which keeps your electrical scope clean and your inspection checklist short.

Technical Highlights:

• Line-Powered Design: 18V DC / 20mA from the POTS loop powers the unit entirely — no 120V circuit, no battery maintenance cycle, no UPS coordination required at the cab level.
• 70dB Speaker at 1m: Delivers audible two-way communication without a handset, which is the ADA and ASME expectation for elevator emergency phones in occupied cabs.
• CPC Disconnect at 300ms: Proper hang-up detection prevents the phone from locking in an off-hook state after the monitoring center disconnects — a failure mode that would block every subsequent emergency call until reset.

Deployment Considerations:

• Confirm the building's telephone line delivers at least 18V DC at 20mA under load — older copper loops in large buildings can sag under combined REN loads, and the K-1500-EHFA won't operate reliably below that threshold.
• Operating temperature ceiling is 90°F (32°C): unventilated elevator machine rooms in hot climates can exceed this during summer — verify ambient conditions before install or specify supplemental ventilation.

Best fit: commercial elevator retrofits in office buildings, hotels, and multi-family residential where the cab already has a standard phone enclosure, the building retains a POTS line for elevator monitoring, and the spec calls for a no-dial-pad handsfree unit with minimal installation complexity.