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Surge protection

MTL MA15 AC and DC mains filter and surge protector

The Crouse-Hinds series MTL MA15 range of surge protection devices protects electronic equipment and computer networks against the effects of ‘noise pollution’ induced in mains power supplies. MA15 units ‘clean up’ the effects of industrial noise and surges caused by lightning, switching devices, thyristor controls, transmission system overloads and power-factor correction circuits. 

Industrial control systems utilizing programmable logic controllers (plc) and industrial computers are particularly vulnerable due to the aggressive electrical environments for which they are intended, such as process plants, factories and water treatment sites. Although industrial computers and plcs are designed to be rugged, the extra protection provided by the DIN rail mounting MA15 units is critical. 

Ideally suited for protecting panel mounted equipment and typically used in the controls section of a motor control center (MCC), the MA15 range provides surge and RFI protected power. Suitable for AC or DC application, MA15 units reduce both electromagnetic emissions and the susceptibility of the associated equipment to emissions from other sources.

MA15E units are ATEX and IECEx certified for use in hazardous area applications. 

Performance
12kA surge protection and RFI filtering
Reliability
Thermal and short circuit protection
Safety
ATEX and IECEx certified models available

Certifications and compliances

MA15 range:

  • UL 1449 5th edition ,Type 4CA recognized components
  • UL 1604 for Class I, Division 2, Groups A, B, C & D
  • EMC compliance:  BS EN 61326-1 : 2013;  IEC 61643-11 : 2011

Note: The above approvals do not apply to the MA15/D/2TT/L and DC applications.

MA15E range:

  • ATEX and IECEx certified for hazardous areas in Zone 2 applications with increased safety ( ec )as per IEC60079-7:2015.
  • Ex nA IIC T4 Gc (-40°C ≤ Ta ≤ +70°C)
  • Ex ec IIC T4 Gc (-40°C ≤ Ta ≤ +70°C)
  • Ex II 3 G Ex ec IIC T4 Gc
  • Compliance to IEC 61643-11

Design features

MA15 range:

  • 12kA surge protection and RFI filtering
  • Protects panel loads up to 15 Amps in series, unlimited Amps in parallel
  • Suitable for AC or DC application
  • Thermal and short circuit protection
  • LED status indication feature
  • 10 year product warranty
  • UL1449 5th edition certified to Type 4CA

MA15E range:

  • 20kA surge protection and RFI filtering
  • Protects panel loads up to 15 Amps in series, unlimited Amps in parallel
  • Suitable for AC or DC application
  • Thermal and short circuit protection
  • LED status indication feature
  • 10 year product warranty
  • ATEX and IECEx certified

Standard materials

  • Casing:  Polymide-PA, with G- or T-section (Top-hat) DIN-rail mounting foot; UL94-V0
Specifications

Ordering information

Model  Voltage Current Application
MA15/D/1/SI 120V,47-63Hz AC/ 140V DC 15A in series and unlimited Amps in parallel  Safe area and Class 1 Div2 Group ABCD
MA15/D/1TT/SI 120V,47-63Hz AC/ 140V DC 15A in series and unlimited Amps in parallel  Safe area and Class 1 Div2 Group ABCD
MA15/D/2/SI 240V,47-63Hz AC/ 280V DC 10A in series and unlimited Amps in parallel Safe area and Class 1 Div2 Group ABCD
MA15/D/2TT/L 240V,47-63Hz AC/ 280V DC 10A in series and unlimited Amps in parallel Safe area 
MA15E/D/1/SI 120V,47-63Hz AC/ 140V DC 15A in series and unlimited Amps in parallel Safe area and Zone 2 installations
MA15E/D/2/SI 120V,47-63Hz AC/ 140V DC 10A in series and unlimited Amps in parallel Safe area and Zone 2 installations
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