TR-III
Hooter / Telephone Loud Ringer
Telephone loud ringer so calls are heard over plant noise
107 dB @ 1 mIP 65220/110 V AC
WMHS-IIIWPIndustrial Weatherproof Telephone
Line-powered weatherproof phone in cast aluminium for wet, noisy plant areas
Line powered24–56 V DCNEMA-48 kg
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- Environment
- Indoor · Outdoor
- Interface
- Analogue
Ideal for
- Cement plants
- Petrochemical refineries
- Chemical plants
- Sugar mills
- Pulp & paper mills
- Ammonia storage areas
What it does
For outdoor posts where rain, dust and machine noise beat an ordinary phone. WMHS-IIIWP takes all its power from the telephone line, so there is no battery and no local supply to fail. The handset cancels background noise and the aluminium casting carries an integrated canopy.
- 01
Fully line powered: no internal battery, no external supply
- 02
Noise-cancelling microphone for noisy areas
- 03
Magnetic reed hook switch rated over 1,000,000 operations
- 04
Sealed one-piece keypad and sealed electronic ringer
- 05
Contact for a SMART external loud ringer or flasher
- 06
Encapsulated circuit boards resist water and condensation
Specifications
Electrical · 4
| Ringer sensitivity | 40–100 V @ 16–25 Hz |
|---|---|
| Line voltage | 24–56 V DC |
| Loop current | 20–120 mA |
| Fuse | 0.25 Amp 2AG fast blow |
Acoustic · 1
| Microphone | Noise reducing dynamic |
|---|
Mechanical · 8
| Hook switch life | > 1,000,000 operations (magnetic reed) |
|---|---|
| Housing | Aluminium alloy, powder coated |
| Dimensions | 422 × 197 × 146 mm |
| Weight | 8 kg |
| Handset material | High impact ABS |
| Mounting | Vertical wall |
| Hardware | Stainless steel |
| Handset cord | Stainless steel |
Environmental · 4
| Temperature | 0 to +60 °C |
|---|---|
| Humidity | 0 to 95% Rh non-condensing |
| Dustproof enclosure | Fully gasketted |
| Protection | NEMA-4 |
Connectivity · 1
| Connection method | PCB terminal block |
|---|
Compare with similar models
Differences first: interface, power, protection and output, then installation. Full specifications are in each model's table.
| Specification | WMHS-IIIWP Industrial Weatherproof Telephone | WMHS-IIWP Weatherproof PA Telephone | FLP Flameproof-Housing PA Telephone | WMHS-IIIWP-VOIP Industrial Weatherproof VoIP Telephone |
|---|---|---|---|---|
| Paging / talkbackdiffers | Notelephone only | Page phone (built-in amplifier)30 W; private mode | Page phone (built-in amplifier)30 W | Notelephone only |
| Poweringdiffers | Line powered | Mains AC220/110 V AC | Mains AC220/110 V AC | Mains AC110/220 V AC |
| Interfacediffers | Analogue | Analogue | Analogue | IP |
| Power supplydiffers | Not specified | 220 V AC / 110 V AC (switchable) | 220 V AC / 110 V AC (switchable) | 110 / 220 V AC (externally powered) |
| Protectiondiffers | NEMA-4 | Not specified | Not specified | Conforming to NEMA-4 |
| Environmentdiffers | Indoor, Outdoor | Indoor, Outdoor | Outdoor, Hazardous | Indoor, Outdoor |
| Mountingdiffers | Vertical wall | Vertical wall / panel | Vertical wall | Vertical wall |
| Housingdiffers | Aluminium alloy, powder coated | Aluminium alloy casting body with integrated canopy & powder-coated surface finish | Aluminium die casting (LM-6), 6 mm wall thickness, powder coated | Aluminium alloy, powder coated |
| Fusediffers | 0.25 Amp 2AG fast blow | Not specified | Not specified | 1 Amp 2AG fast blow |
| Microphonediffers | Noise reducing dynamic | Noise cancelling dynamic | Not specified | Noise reducing dynamic |
| Temperature | 0 to +60 °C | 0 to +60 °C | 0 to +60 °C | 0 to +60 °C |
| Handset | Yesnoise-cancelling | Yesnoise-cancelling | Not specified | Yesnoise-cancelling |
Downloads
PDFSMART WMHS-IIIWP datasheet135 KBQuestions
Does WMHS-IIIWP need mains power?
No. It is fully line powered from a 24–56 V DC telephone line.
Can it ring a louder bell?
Yes. An external contact connects a SMART loud ringer (TR-III) or LED flasher (FL-III).
Related models
All weatherproof & flameproof telephones →
FL-III
LED Flasher
LED flasher that shows an incoming call from up to 100 m
100 m visibilityIP 65220 V AC
MCS-III
Industrial PA System, Central Amplifier
Central-amplifier PA exchange driving 12 loudspeaker zones on 100 V lines
112 ports max12 zones100 V line
Need WMHS-IIIWP for a project?
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