MA121F Alarm Horn Sounder IP66/67 2-21-200

Description

The ‘M’ series of products have been designed to withstand the harshest of environments. Constructed from lightweight, impact and fire resistant ABS, the range features stainless steel, ratchet adjustable mounting brackets and has been third party tested to IP66/67.

Downloads

Datasheet	Datasheet.pdf
Installation Manual	D207-00-001-IS_Issue_2_MA112-121_.pdf
Russian EAC Declaration of Conformity	D-GB.GA05.B.12595-20-24.03.2025.pdf
Russian Maritime register	19.00193.278.pdf
Ingress Protection certificate	M_Range_IP_Rating_Report.pdf
Declaration of Conformity	DC-028_Issue_H_M.pdf
2D drawing (PDF)	SK0122_Issue_B.pdf
2D drawing (DWG)	SK0122_Issue_B.dwg
3D drawing (IGS)	SK0112-3D_Issue_A.IGS
3D drawing (STEP)	SK0122-3D_Issue_A.STEP
Hi-res product image 1 (TIFF)	2-21-200_MA121.tif
Lo-res product image 1 (JPG)	2-21-200_MA121.jpg

Features

Automatic synchronisation on multi-sounder system.
Continuously rated.
Large termination area.
Stainless steel fixings.
Ratchet adjustable stainless steel ‘U’ bracket for 360° positioning.
Duplicate cable terminations (in & out for daisy-chain installations).
Tropicalisation available on request.
Available with custom tone configurations and frequencies.
‘Programmable’ version available:
45 alarm tones
4 remotely selectable stages
Any tone can be assigned to any stage
User configurable continuous frequency tone

Specification

Maximum output:	126dB(A) @ 1 metre [117dB(A) @ 10ft/3m]
Nominal output:	121dB(A) @ 1m +/- 3dB – Tone 2 [112dB(A) @ 10ft/3m]
No. of tones:	45 (UKOOA / PFEER compliant)
No. of stages:	3
Volume control:	Max. 121dB(A); Min. 112dB(A) – Tone 2
Effective range:	300m/984ft @ 1KHz
Voltages DC:	24V dc (10-30V dc); 48V dc (35-60V dc) [DC units can use 24V ac for single stage applications.]
Voltages AC:	24V ac; 115V ac; 230V ac
Stage switching:	Negative or positive Reverse polarity stage switching on DC units.
Ingress protection:	IP66 & IP67 (Third party tested)
Housing material:	High impact UL94 V0 & 5VA FR ABS
Colour:	Grey (RAL7038)
Cable entries:	2 x M20 supplied with 1 blanking plug
Terminals:	0.5 to 4.0mm² cables.
Operating temp:	-25 to +55°C [-13° to +131°F]
Storage temp:	-40 to +70°C [-40° to +158°F]
Relative humidity:	90% at 20°C [68°F]
Weight:	DC: 2.50kg/5.5Ibs AC:3.00kg/6.6Ibs
*SPL data +/-3dB(A). Measured at optimum voltage.

Part Codes

Part Code:	Ident:	Description:
Product type:	MA121	Alarm horn sounder
Flare type:	F	Flare re-entrant horn
Voltage:	AC115 AC230 AC024 DC024 DC048	115V ac 50/60Hz 230V ac 50/60Hz 24V ac 50/60Hz 24V dc (10-30Vdc) 48V dc (42-54V dc)
Cable entries:	A B C	M20x1.5 & ½” NPT M20x1.5 & M20x1.5 ½” NPT & ½” NPT
Stopping plug material:	N	Nylon
Bracket:	1 2	304 (A2) Stainless Steel 316 (A4) Stainless Steel
Approvals:	A1	CE, EAC, RMRS
Enclosure:	R G	Red (RAL 3000) Grey (RAL7038)

Alarm sounder

Version:	Voltage:	Current :
24V dc	10-30V dc	950mA*
48V dc	35-60V dc	600mA*
24V ac 50/60Hz	+/-10%	1000mA
115V ac 50/60Hz	+/-10%	240mA
230V ac 50/60Hz	+/-10%	120mA
* current at nominal voltage on Tone 2

Approvals

EAC approved.
Cert: RU D-GB.AL16.V.11083
Russian Maritime Register of Shipping
Cert: No. 14.02758.315

Tone Table

Stage 1	Frequency Description.	Stage 2	Stage 3
T 1	340 Hz Continuous	T 2	T 5
T 2	800/1000Hz @ 0.25 sec Alternating	T 17	T 5
T 3	500/1200Hz @ 0.3Hz 0.5 sec Slow Whoop	T 2	T 5
T 4	800/1000Hz @ 1Hz Sweeping	T 6	T 5
T 5	2400Hz Continuous	T 3	T 20
T 6	2400/2900Hz @ 7Hz Sweeping	T 7	T 5
T 7	2400/2900Hz @ 1Hz Sweeping	T 10	T 5
T 8	500/1200/500Hz @ 0.3Hz Sweeping	T 2	T 5
T 9	1200/500Hz @ 1Hz – DIN / PFEER P.T.A.P.	T 15	T 2
T 10	2400/2900Hz @ 2Hz Alternating	T 7	T 5
T 11	1000Hz @ 1Hz Intermittent	T 2	T 5
T 12	800/1000Hz @ 0.875Hz Alternating	T 4	T 5
T 13	2400Hz @ 1Hz Intermittent	T 15	T 5
T 14	800Hz 0.25sec on, 1 sec off Intermittent	T 4	T 5
T 15	800Hz Continuous	T 2	T 5
T 16	660Hz 150mS on, 150mS off Intermittent	T 18	T 5
T 17	544Hz (100mS)/440Hz (400mS) – NF S 32-001	T 2	T 27
T 18	660Hz 1.8sec on, 1.8sec off Intermittent	T 2	T 5
T 19	1.4KHz-1.6KHz 1s, 1.6KHz-1.4KHz 0.5s -NFC48-265	T 2	T 5
T 20	660Hz Continuous	T 2	T 5
T 21	554Hz/440Hz @ 1Hz Alternating	T 2	T 5
T 22	544Hz @ 0.875 sec. Intermittent	T 2	T 5
T 23	800Hz @ 2Hz Intermittent	T 6	T 5
T 24	800/1000Hz @ 50Hz Sweeping	T 29	T 5
T 25	2400/2900Hz @ 50Hz Sweeping	T 29	T 5
T 26	Bell	T 2	T 15
T 27	554Hz Continuous	T 26	T 5
T 28	440Hz Continuous	T 2	T 5
T 29	800/1000Hz @ 7Hz Sweeping	T 7	T 5
T 30	300Hz Continuous	T 2	T 5
T 31	660/1200Hz @ 1Hz Sweeping	T 26	T 5
T 32	Two T chime.	T 26	T 15
T 33	745Hz @ 1Hz Intermittent	T 2	T 5
T 34	1000 & 2000Hz @ 0.5 sec Alternating – Singapore	T 38	T 45
T 35	420Hz @ 0.625 sec Australian Alert	T 36	T 5
T 36	500-1200Hz 3.75sec /0.25sec. Australian Evac.	T 35	T 5
T 37	1000Hz Continuous – PFEER Toxic Gas	T 9	T 45
T 38	2000Hz Continuous	T 34	T 45
T 39	800Hz 0.25sec on, 1 sec off Intermittent	T 23	T 17
T 40	544Hz (100mS)/440Hz (400mS) – NF S 32-001	T 31	T 27
T 41	Motor Siren – slow rise to 1200 Hz	T 2	T 5
T 42	Motor Siren – slow rise to 800 Hz	T 2	T 5
T 43	1200 Hz Continuous	T 2	T 5
T 44	Motor Siren – slow rise to 2400 Hz	T 2	T 5
T 45	1KHz 1s on, 1s off Intermittent – PFEER Gen. Alarm	T 38	T 34
Country specific or custom tone configurations and alarm frequencies are available upon request.

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