Viking E-40-SS-EWP Stainless Entry Phone IP66 EWP Single Gang

Viking Electronics E-40-SS-EWP Stainless Steel Entry Phone with EWP

The Viking Electronics E-40-SS-EWP is a telephone-line-powered, two-way handsfree entry phone built for commercial entrances where weather exposure, vandal resistance, and reliable audio are non-negotiable. Housed in 18-gauge 304 stainless steel with a brushed finish, it flush-mounts in a standard single-gang box or surface-mounts in a VE-3x5 enclosure — and with the Enhanced Weather Protection (EWP) variant, it carries an IP66 ingress protection rating that keeps it operational through direct water jets and heavy dust environments. If you are sourcing entry intercoms from the Viking Electronics intercom and entry phone line, this model occupies the durable mid-tier for outdoor single-door deployments.

When This Is the Correct Choice

Deploy the E-40-SS-EWP at building entries, gate stations, or loading dock call points where the intercom runs entirely off the existing telephone infrastructure — no separate power supply, no PoE switch port, no 24V AC transformer. At 18V DC minimum talk battery voltage (24VDC / 20mA per Viking's published spec), almost any analog phone line or door-phone controller with adequate loop current will drive it. If your facility already runs a PBX or analog phone system to the door, this unit wires in with two gel-filled butt connectors and requires no additional power infrastructure — a meaningful installation cost advantage in retrofit projects.

The stainless steel construction and IP66 EWP rating make it appropriate for outdoor entry phone applications in coastal, industrial, or high-wash environments where powder-coated aluminum or ABS housings fail within a season. The IP67-rated 316 stainless steel push button is independently sealed — a detail that matters because the call button is the single highest-wear surface on any entry device and a common failure point on budget units.

When to Choose a Different Model

If the installation does not require weather protection at IP66 levels — a covered vestibule or interior lobby, for example — consider the standard E-40-SS without EWP. The EWP gasket and IP66 rating add cost that is unnecessary indoors. If the deployment needs video verification at the door, the E-40 family is audio-only; move to a Viking video door phone or integrate a separate IP camera at the entrance. If the call point needs to drive a legacy ring circuit directly, confirm the destination equipment can deliver at least 25V AC RMS ring voltage — anything below that and the E-40-SS-EWP will not ring.

Key Features

• Telephone Line Powered (18V DC / 20mA minimum): eliminates the need for a local power supply at the door — the phone loop itself powers the unit. In retrofit installs where pulling a power circuit to the entry is cost-prohibitive, this is the spec that closes the job.
• IP66 EWP Rating: withstands sustained water jets from any direction and total dust exclusion per IEC 60529. Appropriate for exposed exterior walls, covered but rain-swept canopies, and car-wash-adjacent environments. Not rated for submersion — for that, IP67 or IP68 is required.
• IP67-Sealed 316 Stainless Steel Push Button: the call button is independently waterproof to 1m immersion depth and constructed from marine-grade 316 SS — a higher-alloy steel than the 304 faceplate — meaning it resists pitting in chloride-heavy coastal air where 304 would eventually show surface corrosion.
• 18-Gauge 304 Stainless Faceplate (4.875″ × 3.125″ × 0.18″): the slim 0.18″ depth means it sits nearly flush with the wall surface in a single-gang box cutout, which matters for ADA clearance and aesthetic integration on finished building facades.
• 62 dB Maximum Speaker Volume at 1m: sufficient for a noisy loading dock or outdoor entry with moderate ambient noise. In high-ambient-noise environments (>70 dB background) you will want to verify audibility; the E-40-SS-EWP is not a high-output horn speaker.
• 300ms CPC Automatic Disconnect: the unit detects a CPC (Calling Party Control) signal from the central office or PBX and disconnects after 300ms — preventing the entry phone from remaining off-hook and blocking the line after a call ends. Critical in multi-door deployments where a stuck line would prevent calls from other entry points.
• 1/8″ Closed-Cell PVC Faceplate Gasket: provides the compression seal between faceplate and wall surface that achieves the IP66 rating. This gasket is a consumable — in high-UV or high-temperature environments, inspect it during annual maintenance cycles.
• Operating Range -30°F to 150°F (-34°C to 65°C): covers cold-climate outdoor installs (Minnesota winters, Canadian border facilities) through desert Southwest summers without auxiliary heating or cooling. Few analog entry phones publish a verified -30°F lower limit.
• REN 0.8A: the ringer equivalence number confirms this unit draws less than one full REN from the phone line, so it can share a loop with other devices without loading the ring signal below detectable thresholds.
• Marine-Grade 316 SS Mounting Screws (6-32 × 3/4″): fasteners are often the first corrosion point on stainless-faced devices. Using 316 hardware throughout means the mounting system matches the corrosion resistance of the call button.
• Multiple Finish Options: available in Brushed Stainless Steel, Oil Rubbed Bronze, Satin Black, and Satin White — allows the entry phone to match architectural hardware specifications on commercial building projects without a custom order.

Integration and Compatibility

The E-40-SS-EWP connects to any standard analog telephone line, door-phone controller, or PBX analog port capable of supplying 18V DC talk battery and 25V AC RMS ring voltage. It is compatible with Viking's VE-3x5 surface-mount enclosure for installations where a single-gang box cutout is not available or not practical. Two gel-filled butt connectors are the termination method — field-spliced directly to the incoming two-wire loop, no punch-down block required. For installations requiring access control integration (door strike release via DTMF), pair with a Viking controller that supports in-band DTMF door release; the E-40-SS-EWP itself is the audio endpoint only. Review the entry phone selection guide if you are evaluating whether an analog entry phone or a SIP-based video intercom better fits your infrastructure.

Frequently Asked Questions

Q: Does the E-40-SS-EWP require a separate power supply?

A: No. The E-40-SS-EWP is telephone line powered — it draws its operating current directly from the two-wire phone loop. The minimum requirement is 18V DC talk battery voltage at 20mA. No transformer, no PoE, no local power circuit needed.

Q: What is the IP rating of the E-40-SS-EWP and does it differ from the standard E-40-SS?

A: The EWP (Enhanced Weather Protection) variant carries an IP66 ingress protection rating, meaning it is protected against sustained water jets from any direction and is fully dust-tight. The standard E-40-SS without EWP does not carry the IP66 rating. The IP66 seal is achieved via the 1/8″ closed-cell PVC faceplate gasket.

Q: Can the E-40-SS-EWP be surface mounted, or does it require a single-gang box?

A: Both options are supported. It flush-mounts in a standard single-gang electrical box (the faceplate is 4.875″ × 3.125″ × 0.18″). For surface mounting where no in-wall box is present, use the Viking VE-3x5 surface-mount enclosure.

Q: What is the operating temperature range of the E-40-SS-EWP?

A: The unit is rated for -30°F to 150°F, making it suitable for harsh cold-climate or high-heat outdoor deployments without auxiliary heating or cooling.

Q: What faceplate finish options are available for the E-40-SS-EWP?

A: The E-40 series is available in Brushed Stainless Steel, Oil Rubbed Bronze, Satin Black, and Satin White. The SS designation in E-40-SS-EWP refers to the Stainless Steel finish variant with EWP.

Q: What ring voltage does the phone line need to supply to ring the E-40-SS-EWP?

A: The unit requires a minimum of 25V AC RMS ring voltage from the line. Verify that your PBX analog port or door-phone controller meets this minimum; lines delivering less will not audibly ring the unit.

Ted Perry

The spec that earns the E-40-SS-EWP its place in commercial entry deployments is that IP67-rated 316 stainless steel push button paired with an IP66 EWP-rated enclosure — two independently certified ingress ratings on the same device. In practice, the call button takes more abuse than anything else on the entry phone, and the 316 alloy resists chloride pitting in ways that 304 simply does not over a multi-year outdoor service life.

Technical Highlights:

• Telephone Line Power (18V DC / 20mA): no local power home-run needed — the loop itself powers the unit, which in a 20-door facility translates to eliminating 20 power supplies and 20 conduit runs to low-voltage panels.
• CPC Auto-Disconnect at 300ms: prevents line seizure after a call ends; in a multi-entry or multi-tenant scenario, a stuck entry phone would block all inbound calls on that analog circuit until manually released — the 300ms CPC timeout closes that failure mode.
• -30°F to 150°F Operating Range: this is a verified published spec from Viking's datasheet, not an estimate. That lower bound covers outdoor installs in northern climates without any heater element, which is an additional failure point most installers prefer to eliminate.

Deployment Considerations:

• Wire termination is two gel-filled butt connectors — clean and reliable in conduit stubs, but plan your service loop length before the faceplate goes on. There is no punch-down block; you are making the splice at the wall opening.
• The 1/8″ closed-cell PVC faceplate gasket is what achieves the IP66 seal — it compresses against the mounting surface. In stucco, brick, or rough masonry installs, the backing surface must be flat enough to compress the gasket evenly, or the IP66 rating is not achievable. Use a backer plate or surface mount with the VE-3x5 on any irregular wall surface.

The E-40-SS-EWP (often searched as E 40 SS EWP) is the right specification for exposed-exterior commercial entrances on buildings with existing analog phone infrastructure — parking garages, industrial facility gates, and coastal property entry points where the combination of salt air, temperature swing, and high call-button wear makes hardware quality the deciding factor over feature count.