HRFM Series Explosion-proof Buzzer
- ◆The explosion-proof buzzer features an explosion-proof enclosure consisting of an aluminum body with a PC cover.
- ◆The explosion-proof buzzer features an Increased safety enclosure consisting of a polyamide enclosure with PC cover high product strength and stable performance.
- ◆The explosion-proof buzzer offers two configuration options: the Flashing Type with a red PC cover and the Non-flashing Type with a black PC cover.
TECHNICAL DATA
Explosion Protection Type
- Standards: CENELEC, IEC, NEC
- Zones:
Zone 1 and Zone 2
Zone 21 and Zone 22
Class I, Zone 1 and Zone 2
Class I, Division 2, Groups A, B, C, D
- Explosion Protection:
IECEx (applied for) (Gas and dust): Ex eb ib mb IIC Gb; Ex db ib mb IIC Gb; Ex tb IIIC Db
ATEX (applied for) (Gas and dust): II 2 G Ex eb ib mb IIC Gb; II 2 G Ex db ib mb IIC Gb; II 2 D Ex tb IIIC Db
Product Parameters
- Enclosure material: Ex eb: Plastic
- Enclosure material: Ex db: Aluminium alloy
- Enclosure Colour: Black / Red
- Rated Voltage: 48~250V AC/DC, 12~36V AC/DC
- Rated Current: <100mA, <50mA
- Sound Pressure: 60dB (30cm from the source)
- Ambient Temperature: -60°C ~ +90°C
- Mounting: Cover mounting
Product Classification & Origin
HS code: 853710
Country of Origin: China
Applicable Industries
Industry Scope: Oil & Gas Industry, Chemical Industry, Mining Industry, Marine & Offshore Industry, Power Industry, Pharmaceutical & Food Processing Industry, Automotive & Aerospace Industry, Municipal & Industrial Infrastructure.
Function: The explosion-proof buzzer acts as a critical safety warning device widely deployed across high-risk industries where flammable gases, vapors, or dust may exist.
Safety: Compliant with international explosion-proof standards (e.g., ATEX, IECEx) to ensure safety in hazardous environments.
Credibility
Certifications: Certified to ATEX, IECEx, EAC and so on.
Reliability: Engineered for reliable performance even in damp, vibrating and corrosive harsh environments; it is a critical and indispensable first line of manual defense.
FAQ
Q1: Which hazardous environments is the explosion proof buzzer suitable for?
A1: It is suitable for explosive gas environments of Zone 1 and Zone 2, covering gas groups IIA-IIB-IIC and temperature classes T1-T6 (85°C-450°C).
Q2: What voltage specifications does the product support?
A2: It supports a wide voltage range such as 12V/24V/36V/220V, compatible with AC and DC power supplies.
Q3: What is the service life of the explosion-proof buzzer, and what maintenance work is required during use?
A3: It has a long service life, with the LED light source lasting up to 50,000 hours and the buzzer core over 10,000 hours. Maintenance includes regular inspections every 3-6 months for damage, loose wiring, and function testing.
