Intrinsically Safe Sounders

IS-A105N-R

The IS‑A105N‑R is a high‑output, intrinsically safe alarm sounder designed for Zone 0/1 applications. It produces 105 dB(A) at 1 metre across 49 selectable tones and carries ATEX, IECEx, Ex EAC and FM approvals. The “R” suffix denotes a red UL94 V0/5VA ABS enclosure with IP66 ingress protection. Features include input overload and reverse‑current protection, auto‑synchronised sound output, BESA‑compatible mounting options and duplicate cable terminations for daisy‑chaining. Operating from 16–28 V DC via a certified zener barrier, it draws only 25 mA typical at 24 V and can be customised with specific tone configurations. The IS‑A105N‑R suits fire, gas‑detection and process‑control applications in hazardous zones where reliable audible warning is critical.

IS-A105N Alarm Sounder 1-12-020

This variant of the IS‑A105N family uses the 1‑12‑020 designation to reference its datasheet. Like all IS‑A105N units, it delivers a 105 dB(A) output at 1 metre with 49 programmable tones. The sounder is certified to ATEX, IECEx and FM standards for Zone 0 installations and Class I Division 1, ensuring compliance in hazardous industrial settings. Built from flame‑retardant ABS and sealed to IP66, it features overload and reverse‑current protection and an auto‑synchronisation function for multi‑sounder systems. Dual cable terminations allow straightforward loop‑through wiring, and mounting lugs plus a BESA fixing pattern simplify installation. The 16–28 V DC operating range and low current draw make the 1‑12‑020 ideal for energy‑efficient signalling across fire, security and process‑control applications.

IS-MA1

The IS‑MA1 is a compact 100 dB(A) intrinsically safe alarm sounder suited to hazardous areas requiring Zone 0 and Class I Division 1 certification. It offers 49 tone options and three alarm stages, with adjustable volume to match local ambient noise. Approvals include ATEX, IECEx, EAC Ex and FM, and a mining version (IS‑mA1M) is available for Group I applications. Despite its small size, the unit provides input overload and reverse‑current protection, end‑of‑line resistor certification and automatic tone synchronisation. Operating from 16–28 V DC via a zener barrier, it draws only 25 mA typical at 24 V and carries an IP65 flame‑retardant ABS enclosure. The IS‑mA1 suits industrial control panels and small equipment enclosures where space is limited but reliable audible warning is essential.

Intrinsically Safe Beacons

IS‑L101L‑R

The IS‑L101L‑R/* is an intrinsically safe LED beacon that combines a red enclosure with a user‑selectable lens colour (red, amber, blue, green or clear). Certified to ATEX, IECEx and FM standards for Zone 0, the beacon provides a bright double‑flash signal using a prismatic lens and six high‑intensity LEDs. It can operate independently or share a common zener barrier with an IS‑A105N sounder, reducing wiring costs. Features include input overload protection and reverse‑current protection. Operating from 16–28 V DC at 25 mA typical, the IS‑L101L‑R/* offers IP66 protection and durable UL94 V0/5VA ABS/PC construction. Its field‑configurable lens colour makes it ideal for status indication, alarm alerts and safe‑area signalling where clear visual differentiation is needed.

IS‑L101L LED Beacon 1‑11‑020

The IS-L101L unit is an intrinsically safe field mounting beacon which provides a bright flashing warning signal. It uses six high‑intensity LEDs and a prismatic lens to produce a bright double‑flash warning. The unit is certified for Zone 0/1 by ATEX and IECEx and can operate standalone or combined with an IS‑A105N sounder via a common zener barrier. With overload protection and reverse‑current protection built in, it offers reliable operation across temperatures from –40 °C to +60 °C. The beacon’s 16–28 V DC input and low 25 mA current draw make it efficient for battery‑backed systems. Users can specify lens colours (red, amber, blue, green or white) to match hazard‑signalling requirements.

IS‑MB1

The IS‑mB1 is a compact intrinsically safe LED beacon designed for use in hazardous areas. Its prismatic lens and array of six high‑intensity LEDs deliver a double‑flash at 1 Hz or 2 Hz, providing an effective intensity of 23 candela. Certified to ATEX, IECEx, EAC Ex and FM standards for Zone 0 and Class I Division 1 applications, the beacon offers input overload protection, reverse‑current protection and end‑of‑line resistor certification. Available LED colours include red, amber, blue, green and clear. The IS‑mB1 operates from 16–28 V DC via a zener barrier, drawing around 25 mA typical at 24 V. Housed in an IP65 ABS/PC enclosure with stainless‑steel fixings, this 0.32 kg beacon is ideal for space‑constrained locations where clear visual signalling is required.

Intrinsically Safe Combined Units

IS‑MC1-R

The IS‑mC1‑R MiniAlert combines a 100 dB(A) sounder and LED beacon within a red enclosure and allows any standard lens colour to be specified. Certified to ATEX, IECEx, GOST‑R and FM standards, it provides an intrinsically safe solution for Zone 0 applications. A single zener barrier powers both functions, and the sounder can operate with or without the beacon, offering flexible warning strategies. Features include overload protection, end‑of‑line resistor certification, auto‑synchronised sound output and a prismatic lens to optimise LED performance. The alarm side offers 49 tones and three stages, while the beacon delivers a 23‑cd double flash at 1 Hz or 2 Hz. Operating from 16–28 V DC at roughly 30 mA combined current, this IP65‑rated unit is ideal for compact hazardous‑area installations.

IS‑DL105L‑R

The IS‑DL105L‑R is an intrinsically safe combination unit featuring a 105 dB(A) alarm horn and a high‑intensity LED beacon housed in a red marine‑grade aluminium enclosure. Lens colours can be specified (red, amber, blue or green). The device is certified to ATEX and IECEx standards for Zone 0, with additional approvals from FM and Ex EAC. Key features include overload and reverse‑current protection, a prismatic lens for optimised LED output, auto‑synchronised sound output and duplicate cable terminations for daisy‑chaining. An alarm‑accept function allows operators to silence the sounder for 5 seconds to 2 hours while leaving the beacon active. Running from 16–28 V DC at about 25 mA typical, the IS‑DL105L‑R/* is IP66 rated and built to withstand harsh process environments.

Explosion Proof Sounders

D1xS1FDC024AB1A1R

The D1xS1FDC024AB1A1R is a 24 V DC variant of the D1xS1F explosion‑proof alarm horn sounder, delivering up to 115 dB(A) for high‑noise hazardous areas. Its robust LM6 aluminium enclosure is IP66/67 and Type 4/4X rated, suitable for Class I/II Division 1 and Zone 1/2/21/22 installations. The sounder offers 64 programmable tones and four remotely selectable alarm channels. Features include positive/negative line switching, triple cable entries and a ratchet‑adjustable stainless‑steel bracket for versatile mounting. The 24 V DC “DC024” configuration meets EN54‑3 and NFPA public mode fire alarm standards. This variant is ideal for petrochemical, marine and industrial sites requiring reliable audible signalling with functional safety compliance.

D1xS1FAC230AB1A1R

The D1xS1FAC230AB1A1R is the 230 V AC version of the D1xS1F explosion‑proof alarm horn sounder. Like the DC model, it produces up to 115 dB(A) with 64 selectable tones and four alarm stages. Its marine‑grade aluminium enclosure is IP66/67 and Type 4/4X certified for Class I/II Division 1 and Zone 1/2/21/22, with approvals from ATEX, IECEx, UL/cUL and DNV. The AC230 variant is designed for 100–240 V AC supplies and includes triple cable entries, pluggable terminals and a ratchet‑adjustable mounting bracket. As with other D1xS1F units, it offers positive/negative stage switching and automatic synchronisation on multi‑sounder systems. It is suited to hazardous locations where mains power is preferred and functional safety compliance is required.

D1xS1F 115 dB(A) Alarm Horn Sounder 1‑22‑140

This unit is a high‑output explosion‑proof sounder capable of 115 dB(A) at 1 metre, with 64 tones and four selectable alarm stages. Its LM6 aluminium enclosure is approved for Class I/II Division 1 and Zones 1, 2, 21 and 22, meeting IP66/67 and Type 4/4X requirements. Features include positive/negative line switching, automatic synchronisation, triple cable entries and a ratchet‑adjustable stainless‑steel bracket. Available in 24 V DC and 100–240 V AC versions, the D1xS1F suits hazardous industrial environments needing robust audible warning with functional safety compliance.

Explosion Proof Beacons

D1xB2X05MB1A1R

The D1xB2X05MB1A1R/* represents a configurable variant of the explosion‑proof 5‑joule xenon strobe beacon. The asterisks (“”) indicate that it can be supplied in various DC (12 V, 24 V, 48 V) or AC (115 V, 230 V) voltage options, while the “MB1A1R” suffix denotes the chosen cable entry and lens colour. Like all D1xB2X05 units, it uses a field‑replaceable UV‑stable polycarbonate lens filter and produces a high‑intensity xenon flash at four selectable rates (1 Hz, 1.3 Hz, 1.5 Hz or double flash). The IP66/67 Type 4/4X aluminium enclosure is approved for Class I/II Division 1 and Zones 1, 2, 21 and 22, with EN54‑23 and UL1638 certifications. A 316‑grade stainless‑steel guard is included to protect the lens.