WMHS-I

Page/Private Telephone, Handset Type

Name: SMART WMHS-I Page/Private Telephone, Handset Type
Brand: SMART
SKU: wmhs-i

Page/private station; unlimited sets on one parallel loop, 30 W each

30 W amplifierParallel loopIP 655 kg

Datasheet · PDF 140 KB

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Category: Plant Communication (PA) Systems
Environment: Indoor · Outdoor
Interface: Stand-alone

Ideal for

Cement plants
Mines
Spinning (yarn) mills
Construction sites
Large and medium-scale industrial units

What it does

Loudspeaker paging and a private talk line in one wall unit, with no exchange. WMHS-I stations share a parallel loop, and each carries its own 30 W amplifier, so taking one out only silences its own speaker. Connect as many units as the loop needs.

01
Paging and private line in one unit
02
Unlimited units on one parallel loop
03
Own 30 W amplifier per station; one removed set silences only itself
04
Built-in short-circuit and overload protection
05
16-gauge steel enclosure with integrated canopy

Specifications

Electrical · 4

Power consumption	< 35 W
Standby consumption	< 5 W
Insulation	600 V for 3 min between power source & parallel line
Power supply	AC mains 220 / 110 V (system diagram)

Acoustic · 3

Amplifier	30 W (RMS)
Horn speaker	60 W, 8 Ω
Microphone	Noise cancelling dynamic

Mechanical · 4

Dimensions	360 × 160 × 180 mm
Weight	5 kg
Housing	16-gauge powder-coated steel body
Mounting	Vertical wall / panel

Environmental · 4

Moisture resistance	0 to 95% humidity with PCB conformal coated
Temperature	0 to +60 °C
Dust resistance	Fully weatherproof enclosure
Protection	IP 65

Connectivity · 1

Cable	1.5 sq mm 3-core power cable per unit; 24/0.2 mm 2-core twisted cable for loudspeakers; parallel loop cable (core count to be confirmed)

Compare with similar models

Differences first: interface, power, protection and output, then installation. Full specifications are in each model's table.

Comparison of WMHS-I with similar models. Rows that differ come first; “Not specified” means the datasheet does not list it.
Specification	WMHS-I Page/Private Telephone, Handset Type	WMHF-I Pilfer-Proof Page/Private Telephone, Hands-Free	WMHS-IIAD Addressable PA Telephone	WMHF-I-3W Page/Private System Unit
Power supplydiffers	AC mains 220 / 110 V (system diagram)	AC mains 220 / 110 V (system diagram)	220 V AC / 110 V AC (switchable)	Not specified
UPS loaddiffers	Not specified	30 VA (RMS), peak 50 VA	50 VA (RMS), peak 90 VA	Not specified
Insulationdiffers	600 V for 3 min between power source & parallel line	600 V for 3 min between power source & parallel line	600 V for 3 min between power source & signal line	600 V for 3 min between power source & parallel line
Protectiondiffers	IP 65	Conforming to NEMA-4	Not specified	IP 65
Cablediffers	1.5 sq mm 3-core power cable per unit; 24/0.2 mm 2-core twisted cable for loudspeakers; parallel loop cable (core count to be confirmed)	1.5 sq mm cable in parallel loop; 1.5 sq mm 3-core power cable per unit; 0.75 mm 2-core flexible cable for loudspeakers	Parallel loop, 2-core cable	1.5 sq mm cable in parallel loop; 1.5 sq mm 3-core power cable per unit; above 0.75 mm 2-core flexible cable for loudspeakers
Housingdiffers	16-gauge powder-coated steel body	16-gauge powder-coated steel body	16 SWG powder-coated steel body	16-gauge powder-coated steel body
Interface	Stand-alone	Stand-alone	Stand-alone	Stand-alone
Power consumption	< 35 W	< 35 W	< 35 W	< 35 W
Standby consumption	< 5 W	< 5 W	< 5 W	< 5 W
Moisture resistance	0 to 95% humidity with PCB conformal coated	0 to 95% humidity with PCB conformal coated	0 to 95% humidity with PCB conformal coated	0 to 95% humidity with PCB conformal coated
Dust resistance	Fully weatherproof enclosure	Fully weatherproof enclosure	Fully weatherproof enclosure	Fully weatherproof enclosure
Environment	Indoor, Outdoor	Indoor, Outdoor	Indoor, Outdoor	Indoor, Outdoor