EMAS MBZS024S - 90dB Alarm LED Buzzer Alarm Indicator 22mm (IP50 24V AC/DC)

MB Series Plastic with LED 24V AC/DC 22 mm Buzzer The MBZS024S pairs a 90dB audible alert with a visual LED cue in one compact 22mm unit, so operators can't miss a fault or process alarm even in a noisy plant. At just 20mA, it drives directly from a PLC output with no extra hardware. Pairs well with our PID temperature controllers and electronic thermostats — including the Novus N1030T-PR-24V — as a fault signal wired to an alarm relay output. It can also be housed in one of our PY Series control boxes for a self-contained panel-mounted alarm unit. Technical Details Bulb Type Led Operating Current 20 mA Operational Frequency 50 Hz Operational Voltage 24V AC/DC Product Buzzer Illumination with LED Dia 22 mm Volume 90 dB Power Consumption 0.6 W Insulation Voltage (Ui) 250 V Operating Temperature -15 / + 70 °C Protection Degree IP50 Cable Section 1.5-2.5 mm² Screw Torque 1,5 Nm Serial MB Series Plastic Electrical Life (Min Hour) 10000 Frequently Asked Questions Can I drive this directly from a PLC output? Yes — at 24V AC/DC and just 20mA draw, it's compatible with most PLC digital outputs without needing an interposing relay. Is 90dB loud enough to hear over factory floor noise? 90dB is comparable to a passing truck or industrial machinery — generally audible over typical factory background noise from several metres away, though very loud environments may need a supplementary visual-only strobe instead. Is this suitable for washdown or outdoor mounting? It's IP50 rated (dust-protected, not water-jet rated), so it's best suited to indoor control panels rather than washdown or outdoor environments. For a washdown-rated buzzer, check the MBZS024SE (IP65) instead. What's the difference between this and the 230V version? This is the low-voltage variant, suited to PLC/relay-driven circuits. If your panel runs mains-voltage alarm circuits directly, use the MBZS220S (230V AC) version instead. Industry Applications BMS & control panels — combined audible/visual fault or alarm annunciation Process equipment — end-of-cycle or fault signalling on PLC-controlled machinery Manufacturing control stations — alerting operators to a stop, fault, or attention-required condition

EMAS MBZS024S - 90dB Alarm LED Buzzer Alarm Indicator 22mm (IP50 24V AC/DC)

MB Series Plastic with LED 24V AC/DC 22 mm Buzzer

The MBZS024S pairs a 90dB audible alert with a visual LED cue in one compact 22mm unit, so operators can't miss a fault or process alarm even in a noisy plant. At just 20mA, it drives directly from a PLC output with no extra hardware.

Pairs well with our PID temperature controllers and electronic thermostats — including the Novus N1030T-PR-24V — as a fault signal wired to an alarm relay output. It can also be houséd in one of our PY Series control boxes for a self-contained panel-mounted alarm unit.

Technical Details

Bulb Type

Led

Operating Current

20 mA

Operational Frequency

50 Hz

Operational Voltage

24V AC/DC

Product

Buzzer

Illumination

with LED

Dia

22 mm

Volume

90 dB

Power Consumption

0.6 W

Insulation Voltage (Ui)

250 V

Operating Temperature

-15 / + 70 °C

Protection Degree

IP50

Cable Section

1.5-2.5 mm²

Screw Torque

1,5 Nm

Serial

MB Series Plastic

Electrical Life (Min Hour)

10000

Frequently Asked Questions

Can I drive this directly from a PLC output?
Yes — at 24V AC/DC and just 20mA draw, it's compatible with most PLC digital outputs without needing an interposing relay.

Is 90dB loud enough to hear over factory floor noise?
90dB is comparable to a passing truck or industrial machinery — generally audible over typical factory background noise from several metres away, though very loud environments may need a supplementary visual-only strobe instead.

Is this suitable for washdown or outdoor mounting?
It's IP50 rated (dust-protected, not water-jet rated), so it's best suited to indoor control panels rather than washdown or outdoor environments. For a washdown-rated buzzer, check the MBZS024SE (IP65) instead.

What's the difference between this and the 230V version?
This is the low-voltage variant, suited to PLC/relay-driven circuits. If your panel runs mains-voltage alarm circuits directly, use the MBZS220S (230V AC) version instead.

Industry Applications

BMS & control panels — combined audible/visual fault or alarm annunciation
Process equipment — end-of-cycle or fault signalling on PLC-controlled machinery
Manufacturing control stations — alerting operators to a stop, fault, or attention-required condition