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
EXA PA 250Paging Amplifier Module, 250 W
250 W rack amplifier module on 100 V lines for MCS-III, ISAS
250 W RMS100 V line19 in rack
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- Environment
- Indoor
- Interface
- Stand-alone
Ideal for
- MCS-III central racks
- ISAS safety announcement racks
- Large and medium-scale industrial units
What it does
The power stage of the SMART central-amplifier systems. Each EXA PA 250 module puts 250 W RMS onto a 100 V audio line for remote loudspeakers, with overload, short-circuit and open-circuit protection. Add modules as the speaker load grows.
- 01
250 W RMS on a 100 V audio line
- 02
Overload, short-circuit and open-circuit protection
- 03
Line-transformer design: no pre-amplifier
- 04
Hot-swappable connectors
- 05
Master and monitor volume controls
Specifications
Electrical · 4
| Power supply | 220 V AC |
|---|---|
| Power consumption | 300 W |
| Isolation | 1.5 kV between primary & secondary for 15 min |
| UPS load | 320 VA (RMS), peak 450 VA |
Acoustic · 2
| Amplifier output | 250 W (RMS) |
|---|---|
| Output | 100 V audio line |
Mechanical · 4
| Housing | Steel, powder coated, aluminium dial |
|---|---|
| Dimensions | 480 × 110 × 180 mm |
| Weight | 12 kg |
| Mounting | 19 in rack (central amplifier rack) |
Environmental · 2
| Temperature | 0 to +60 °C |
|---|---|
| Humidity | 0 to 95% Rh non-condensing |
Compare with similar models
Differences first: interface, power, protection and output, then installation. Full specifications are in each model's table.
| Specification | EXA PA 250 Paging Amplifier Module, 250 W | EXA-I External Amplifier | EXA-II External Amplifier | OC-DTHS-V Desktop Operator Console for Page/Private System |
|---|---|---|---|---|
| Power supplydiffers | 220 V AC | 220 V / 110 V AC (switchable) | 220 V / 110 V AC (switchable) | 220 V AC / 110 V AC (switchable) |
| Power consumptiondiffers | 300 W | 100 W | 110 W | < 15 W |
| Temperaturediffers | 0 to +60 °C | 0 to +60 °C (printed '-0 to +60 C') | 0 to +60 °C | 0 to +60 °C |
| Amplifier outputdiffers | 250 W (RMS) | 100 W (RMS) | 100 W (RMS) | Not specified |
| Mountingdiffers | 19 in rack (central amplifier rack) | Not specified | Not specified | Desk top |
| Housingdiffers | Steel, powder coated, aluminium dial | 16 SWG steel | 16 SWG steel | 16-gauge powder-coated steel body |
| Dimensionsdiffers | 480 × 110 × 180 mm | 290 × 310 × 150 mm | 290 × 310 × 150 mm | Not specified |
| Weightdiffers | 12 kg | Not specified | Not specified | 0.6 kg |
| Interface | Stand-alone | Stand-alone | Stand-alone | Stand-alone |
| Environment | Indoor | Indoor | Indoor | Indoor |
| Humidity | 0 to 95% Rh non-condensing | 0 to 95% Rh non-condensing | 0 to 95% Rh non-condensing | Not specified |
| Cable | Not specified | 24/0.2 mm 2-core ATC PVC twin twisted cable amplifier to LMT and LMT to loudspeaker horn | 24/0.2 mm 2-core ATC PVC twin twisted cable amplifier to LMT and LMT to loudspeaker horn | Not specified |
Part of a system
Plant PA system
Paging and private talk across a whole plant, in two architectures. MCS-II puts a 30 W amplifier in every PA telephone and needs no amplifier rack; MCS-III keeps line-powered phones in the field and drives 100 V loudspeaker lines from central 250 W amplifiers.
Related models
All operator consoles, amplifiers & loudspeakers →
ISAS
Industrial Safety Announcement System (PAGA)
Pre-recorded and live safety announcements across the plant from one rack
250 W per amplifier100 V line19 in rack
LSOD
Industrial Loudspeaker Horn, Outdoor
Re-entrant ABS loudspeaker horn for outdoor plant paging
300–3400 Hz8 Ω0.8 kg
Need EXA PA 250 for a project?
Tell us the quantity, the plant and the timeline. We reply with a quotation.