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The SIEMENS 3RH1921-2DE11 is a 2-pole, 1NO 1NC spring loaded terminal contactor auxiliary switch block. This electronic auxiliary switch is designed according to DIN EN 50012 standards and features a spring clamp connection. It is suitable for use with size S0 to S3 contactors and can be mounted laterally.
The SIEMENS 3RH1921-2DE11 auxiliary switch block is ideal for expanding the functionality of contactor systems.
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