Why Choose the ABB MARN440AR Auxiliary Contact Block?
The ABB 1SAL103352R9906 MARN440AR is a compact and reliable auxiliary contact block designed to expand the control and signalling capabilities of ABB mini contactors. As part of the ABB MARN auxiliary contact block series, it provides additional switching contacts for industrial automation, motor control and electrical control systems.
This front-mounted auxiliary contact block is designed for use with ABB MC1, MC2 and compatible MCR contactors equipped with ring tongue terminals. Its compact construction allows engineers to add contactor status feedback, interlocking and control functions without requiring additional panel space.
Featuring four normally open auxiliary contacts, a 6 A AC-15 operational current at 230 V AC and ring tongue terminal connections, the ABB MARN440AR is ideal for applications requiring reliable auxiliary switching and monitoring within industrial control assemblies.
Key Advantages
- Compact auxiliary contact block designed for ABB mini contactors.
- 4 normally open auxiliary contacts for control and signalling functions.
- Front-mounted design for straightforward installation on compatible contactors.
- 6 A AC-15 rated operational current at 230 V AC.
- Ring tongue terminal connection for secure industrial wiring.
- Improves monitoring, interlocking and automation control capabilities.
Key Features
- ABB MARN auxiliary contact block series.
- Model: MARN440AR.
- 4NO auxiliary contact configuration.
- 0 normally closed contacts.
- Front fastening mounting design.
- Ring tongue terminal connection.
- Rated insulation voltage up to 750 V.
- Rated operational voltage up to 690 V AC.
- IP20 protection rating.
- Suitable for industrial control and automation systems.
Reliable Contact Feedback for Industrial Control Systems
Auxiliary contact blocks such as the ABB MARN440AR provide additional switching contacts that allow control systems to monitor contactor status, create electrical interlocks and provide feedback signals to PLCs and automation equipment.
The ABB MARN auxiliary contact range is designed to complement mini contactors used in industrial environments. The MARN440AR provides a flexible solution for engineers requiring additional normally open contacts while maintaining compact and reliable control panel designs.
Typical Applications
- Industrial automation control panels.
- Motor starter and contactor assemblies.
- PLC feedback and signalling circuits.
- Machine building and OEM equipment.
- Electrical control cabinets.
- Industrial switching and monitoring systems.
