Eaton BiWire Ultra Sounder Base (EF5021BWS)

The Eaton BiWire Ultra EF5021BWS is a base sounder for Eaton's BiWire two-wire fire alarm system. It can be used with a detector fitted directly on top, or with a cover (EF538COV, available separately) as a discreet standalone sounder. It has a first-fix mounting base and is certified to EN 54-3.

Key features

• For use on BiWire range conventional fire alarm panels
• Detector mounting base built in, or use with EF538COV cover as a standalone sounder
• First-fix base for easy installation
• 3 selectable tones: continuous (910 Hz), bell (1440 Hz) and alternating (610/910 Hz)
• High/low volume setting
• Optional locking tab
• Remote indicator LED connection
• No serviceable components, so no maintenance required

Technical specifications

• Supply voltage: alarm 25.5-35 V DC; standby 18-25.5 V DC
• Standby current (BiWire mode): less than 15 µA
• Current: high volume 4.7 mA; low volume 2.6 mA
• Sound output: high volume 90 ±3 dB(A); low volume 80 ±3 dB(A), all tones
• Tones: 3
• Cable: 0.5-2.5 mm², FIRETUF, FP200 or MICC
• End-of-line: EOLM-3
• Operating temperature: -10°C to +55°C (93% ±3% RH)
• Material: ABS/PC FR plastic
• Environmental category: Type A, IP21C
• Standards: EN 54-3:2001 + A1:2002 + A2:2006