WMHF-I-3W

Page/Private System Unit

Name: SMART WMHF-I-3W Page/Private System Unit
Brand: SMART
SKU: wmhf-i-3w

Page/private station with page, talkback and release buttons

30 W amplifierFull duplexIP 655 kg

Datasheet · PDF 161 KB

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

Ideal for

Cement plants
Steel plants
Process industries
Large and medium-scale industrial units

What it does

Page the whole loop with one button, answer on the nearest unit. Pressing PAGE on WMHF-I-3W puts every other set into paging mode; the person who responds presses TALKBACK for a full-duplex private line, and RELEASE ends it. Others can still page while that conversation goes on.

01
PAGE, TALKBACK and RELEASE buttons
02
Full-duplex private talkback
03
Others can page during a private call
04
Unlimited units on one parallel loop
05
Own 30 W amplifier per unit

Specifications

Electrical · 3

Power consumption	< 35 W
Standby consumption	< 5 W
Insulation	600 V for 3 min between power source & parallel line

Acoustic · 2

Amplifier	30 W (RMS)
Horn speaker	60 W, 8 Ω

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 cable in parallel loop; 1.5 sq mm 3-core power cable per unit; above 0.75 mm 2-core flexible cable for loudspeakers

Compare with similar models

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

Comparison of WMHF-I-3W with similar models. Rows that differ come first; “Not specified” means the datasheet does not list it.
Specification	WMHF-I-3W Page/Private System Unit	WMHS-I Page/Private Telephone, Handset Type	WMHF-I Pilfer-Proof Page/Private Telephone, Hands-Free	WMHS-IIAD Addressable PA Telephone
Power supplydiffers	Not specified	AC mains 220 / 110 V (system diagram)	AC mains 220 / 110 V (system diagram)	220 V AC / 110 V AC (switchable)
UPS loaddiffers	Not specified	Not specified	30 VA (RMS), peak 50 VA	50 VA (RMS), peak 90 VA
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 & parallel line	600 V for 3 min between power source & signal line
Protectiondiffers	IP 65	IP 65	Conforming to NEMA-4	Not specified
Cablediffers	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	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
Housingdiffers	16-gauge powder-coated steel body	16-gauge powder-coated steel body	16-gauge powder-coated steel body	16 SWG 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