Description
Disabled Refuge Master Station 4 Line
ESP B1M4
The ESP B1M4 Disabled Refuge Master Station 4 Line is a fully monitored and expandable control unit for emergency voice communication systems. Built for compliance with BS5839-9:2021, it provides clear system status via multiple LEDs and supports up to eight lines with expansion modules.
Key Features
- BS5839-9:2021 compliant for emergency communication systems
- Supports 4 lines, expandable to 8 with add-on cards
- 8 zone LEDs, 3 fault LEDs, and 2 supply LEDs for complete system monitoring
- Deep discharge, short circuit, and thermal protection
- Monitors for open circuits, shorts, fuses, and high impedance faults
- Surface or flush mount options (flush bezel required for flush installation)
Technical Overview
- Product Code: B1M4
- Dimensions: 300 x 350 x 95mm
- Finish: Black & grey
- Material: Powder-coated Zintec with smoked Perspex door
- Mounting: Surface or flush (BMSF required)
- Weight: 5.0kg
- Operating Voltage: 230V AC
- Frequency: 50/60Hz
- Internal Supply Voltages: 5V, 16V, 27V DC
- Cable Size: 1 – 1.5mm²
- Fuses: 240V 1A HRC (mains), 750mA PTC (battery)
- Standby Supply: Up to 12V 7Ah (battery not included)
- Charge Current: 400mAh
- Connection Type: Outstation cables – 1 x 2-core radial
- Max Communication Range: 500m (point-to-point)
- Alarm Zone EOL Resistance: 10kΩ
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Warranty: 2 years
What’s Included
- 1 x ESP B1M4 Master Station
- Installation hardware
- User manual
- Why Choose This Product?
The B1M4 is ideal for larger disabled refuge installations requiring reliable communication over multiple points. With its expandable design, comprehensive LED status indicators, and protective features, it ensures safety and performance in demanding environments.
Guarantee & Compliance
Supplied with a 2-year manufacturer’s warranty, the ESP B1M4 meets stringent UK safety and performance standards for emergency voice communication systems.
