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  • RoHS Status
  • RS Stock No. 618-9597
  • Brand MTL
  • Mfr Part No. MA15/D/1/SI


Height 93mm
Maximum Surge Current 18kA
Maximum Voltage Rating 140 V
Mounting Type DIN Rail
Series MA15
Suppressor Type Mains Surge Protector
Depth 25mm
Dimensions 79 x 25 x 93mm
Length 79mm
Maximum Operating Temperature +85°C
Minimum Operating Temperature -40°C
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Surge & Noise Suppressor, MA15 Series

Maximum attenuation-55dB @ 100MHz 
Lines protectedL, N, E 
Max. continuous operating current15A series connection
Unlimited Amps in parallel
Ambient temperature limits-40°C to +85°C 
Terminal size2.5mm2 (12 AWG) 
IndicationGreen LED onProtection present
 Green LED offInternal failure
EnclosurePolymide-PA, G or T section 35mm DIN rail mounting, Top-hat mounting 

UL 1449

Surge Protection Devices, SPDs (DIN-rail)

Voltage surges, often referred to as spikes or transients are typically caused by switching of fluorescent lights, fuses blowing or nearby lightning activity. The worst voltage surges are usually caused by lightning and can reach up to 6000V, with current surges of over 3000A. The maximum size of the voltage and current surges depends on the location within the building's wiring system. BS7671: 2011 Amendment 1 Sections 443 and 534 cover risk assessment and provides guidance on protection of electronic equipment for installation engineers to follow. The fullest information on lightning and surge protection comes from the BSEN 62305 series of standards.

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