DC Switches

The MERZ DC Switches are specially developed for disconnecting DC loads. They are specially designed for use in the field of photovoltaics. The product range includes series that can safely carry a current of 10A to 160A and safely switch off and disconnect generator open circuit voltages up to 1500VDC. The switches are available for front and bottom mounting and they are approved by IEC 60947-1 / -3, CCC and UL508i.

Benefits

  • Robust and modular design
  • Positive opening contacts
  • Customized solutions on request
  • Maintenance-free
  • Very fast shut off time
  • Multipolar solutions for 1-6 MPPT
  • Suitable for high ambient temperatures
  • Very compact design
  • High-quality contacts for a long lifespan

SPECIFICATIONS

Short overview specifications

ACC. IEC 60947-1, IEC 60947-3, CCC   Unit from to
Rated insulation Voltage   Vdc 1000 1500
Conventional thermal current Ith (open)   Adc 45 160
Rated impulse withstand voltage Uimp   kV 8 10
         
Rated operational voltage Ue DC-21B Vdc 1000 1000
Rated operational current Ie DC-21B Adc 10 160
Rated operational voltage Ue DC-21B Vdc 1500 1500
Rated operational current Ie DC-21B Adc - 32
Rated operational voltage Ue DC-PV1 Vdc 400 400
Rated operational current Ie DC-PV1 Adc 45 50
Rated operational voltage Ue DC-PV1 Vdc 600 600
Rated operational current Ie DC-PV1 Adc 30 50
Rated operational voltage Ue DC-PV1 Vdc 800 800
Rated operational current Ie DC-PV1 Adc 16 50
show more technical data
ACC. IEC 60947-1, IEC 60947-3, CCC   UNIT FROM TO
Rated operational voltage Ue DC-PV1 Vdc 1000 1000
Rated operational current Ie DC-PV1 Adc 10 160
Rated operational voltage Ue DC-PV1 Vdc 1100 1100
Rated operational current Ie DC-PV1 Adc - 14
Rated operational voltage Ue DC-PV2 Vdc 400 400
Rated operational current Ie DC-PV2 Adc 18 20
Rated operational voltage Ue DC-PV2 Vdc 600 600
Rated operational current Ie DC-PV2 Adc 13 18
Rated operational voltage Ue DC-PV2 Vdc 800 800
Rated operational current Ie DC-PV2 Adc 9 19
Rated operational voltage Ue DC-PV2 Vdc 1000 1000
Rated operational current Ie DC-PV2 Adc 6 160

Find out more

Download the complete specifications and get an overview of our high-performance products.

Complete specifications MDC1A
Download (1.6 MB)
Complete specifications MDC10 / MDC40
Download (1.6 MB)

3D View

MERZ DC switch series "MDC", they are load break switches specially designed for use in the field of photovoltaics. The entire product range includes series that can safely carry a current from 16A to 160A and safely disconnect and isolate generator open circuit voltages up to 1500VDC.

3D-Model: MDC10-040-1000-4E-2050 with lock ring

Click on the image to activate the 3D view. You can move the model by dragging it with the mouse.

DESIGN

DESIGN FRONT MOUNTING
DESIGN BASE MOUNTING
Design Wall Mounting Enclosed

Design Front Mounting

2/4-hole mounting with front plate without lockout handle

Design Front Mounting

2/4-hole mounting with front plate and lockout handle for 1 or 2 padlock

Design Front Mounting

2/4-hole mounting with lockout handle for 3 padlock

Design Front Mounting

Central mounting 22,5 / 30,5 mm with front plate without lockout handle

Design Front Mounting

Central mounting 22,5 / 30,5 mm with front plate and lockout handle for 1 or 2 padlock

Design Front Mounting

Central mounting 22,5 / 30,5 mm with lockout handle for 3 padlock

Design Front Mounting

Central mounting 22,5 / 30,5 mm without front plate without lockout handle

Design Front Mounting

Central mounting 16 mm without front plate without lockout handle

Design Front Mounting

4-hole mounting with lockout handle for 3 padlocks

Design Base Mounting

Distribution board mounting with front plate without lockout handle

Design Base Mounting

Distribution board mounting with front plate and lockout handle for 1 or 2 padlocks

Design Base Mounting

Cover coupling with front plate without lockout handle

Design Base Mounting

Cover coupling with front plate and  lockout handle for 1 or 2 padlock

Design Base Mounting

Cover coupling with lockout handle for 3 padlocks

Design Base Mounting

Door coupling with front plate without lockout handle

Design Base Mounting

Door coupling with front plate and lockout handle for 1 or 2 padlock

Design Base Mounting

Door coupling with lockout handle for 3 padlocks

Design Base Mounting

Cover coupling with lockout handle for 3 padlocks

Design Wall Mounting series 8920/8940

DC-Switch Disconnector for Solar Inverters

Design Wall Mounting series 8960/8980

DC-Switch Disconnector for Solar Inverters

Design Wall Mounting 8921

Plastic enclosure (89-series) with lockout handle for 3 padlocks and assembled cable set MC-K4SXL PVADSP4 / - / 020 and cable set MC-K4SXL PVADBP4 / - / 020

Design Wall Mounting

Plastic enclosure (ML0/ML1-series) with lockout handle for 1 or 2 padlocks

Design Wall Mounting

Plastic enclosure (ML0/ML1-series) with lockout handle for 1 or 2 padlocks

Design Wall Mounting

Plastic enclosure (ML0/ML1-series) with lockout handle for 3 padlocks

Design Wall Mounting

Plastic enclosure (ML0/ML1-series) with lockout handle for 3 padlocks

Contact Diagrams

for 1 MPPT
for 2 MPPTs
for 3 MPPTs

MDC1A-025-600-2 E

Front Mounting for 1 MPPT

MDC1A-025-600-2 V

Base Mounting for 1 MPPT

MDC1A-040-600-3 E

Front Mounting for 1 MPPT

MDC1A-040-600-3 V

Base Mounting for 1 MPPT

MDC1A-045-600-3 E

Front Mounting for 1 MPPT

MDC1A-045-600-3 V

Base Mounting for 1 MPPT

MDC1A-040-1000-4 E/V

Front Mounting or Base Mounting for für 1 MPPT

MDC10-040-1000-2 E/V IEC

Front Mounting or Base Mounting for 1 MPPT

MDC10-040-1000-21 E/V IEC

Front Mounting or Base Mounting for 1 MPPT

MDC10-040-1000-3 E/V IEC

Front Mounting or Base Mounting for 1 MPPT

MDC10-040-1000-41 E/V IEC

Front Mounting or Base Mounting for 1 MPPT

MDC40-160-1000-4 E/V IEC

Front Mounting or Base Mounting for 1 MPPT

MDC1A-025-600-2 E/V UL

Front Mounting or Base Mounting for 1 MPPT`s

MDC1A-040-1000-4 E/V UL

Front Mounting or Base Mounting for 1 MPPT`s

MDC1A-025-600-4 E

Front Mounting for 2 MPPT`s

MDC1A-025-600-4 V

Front Mounting for 2 MPPT`s

MDC1A-040-600-32 E/V IEC

Front Mounting or Base Mounting for 2 MPPT`s

MDC1A-040-600-6 E IEC

Front Mounting for 2 MPPT`s

MDC1A-040-600-6 V IEC

Base Mounting for 2 MPPT`s

MDC1A-045-600-6 E IEC

Front Mounting for 2 MPPT`s

MDC1A-045-600-6 V IEC

Base Mounting for 2 MPPT`s

MDC1A-040-1000-8 E/V IEC

Front Mounting or Base Mounting for 2 MPPT`s

MDC10-040-1000-32 E/V IEC

Front Mounting or Base Mounting for 2 MPPT`s

MDC10-040-1000-4 E/V IEC UL

Front Mounting or Base Mounting for 2 MPPT`s

MDC10-040-1000-42 E/V IEC

Front Mounting or Base Mounting for 2 MPPT`s

MDC10-040-1000-62 E/V IEC

Front Mounting or Base Mounting for 2 MPPT`s

MDC40-160-1000-8 E/V IEC

Front Mounting or Base Mounting for 2 MPPT`s

MDC1A-025-600-4 E/V UL

Front Mounting or Base Mounting for 2 MPPT`s

MDC1A-040-1000-8 E/V UL

Front Mounting or Base Mounting for 2 MPPT`s

MDC10-040-1000-4 E/V UL

Front Mounting or Base Mounting for 2 MPPT`s

Series MDC40

MDC1A-025-600-6 E IEC

Front Mounting for 3 MPPT`s

MDC1A-025-600-6 V IEC

Base Mounting for 3 MPPT`s

MDC1A-040-1000-12 V IEC

Base Mounting for 3 MPPT`s

MDC1A-025-600-6 E/V UL

Front Mounting or Base Mounting for 3 MPPT`s

MDC1A-040-1000-12 V UL

Base Mounting for 3 MPPT`s

MDC10-040-1000-6 E/V IEC UL

Front Mounting or Base Mounting for 3 MPPT`s

Application examples

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eMobility

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MyReserve

Connection Technology

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Accessories

N-terminal

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PE-terminal

Switching contact

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Extension shafts in combination with door coupling

Enclosures series 89xx

Terminal cover

Additional front plates

Legend plate