3RH1921-1FA40
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Overview of Siemens 3RH1921-1FA40
Shop genuine Siemens 3RH1921-1FA40 directly from LeadTime.ca to upgrade your automation system with reliable, high-performance components. This front-mounted auxiliary contact block is designed for seamless integration with Siemens 3RT1 contactors, offering 4 normally open (NO) contacts for enhanced circuit control and monitoring. With easy snap-on installation and robust screw terminals, the Siemens 3RH1921-1FA40 delivers flexibility for a broad range of industrial applications, from machinery control to safety interlocks. Built to IEC and EN standards, this contact block ensures dependable operation in demanding environments, making it a smart buy for engineers, system integrators, and maintenance professionals seeking quality and compatibility.
Key Features of Siemens 3RH1921-1FA40
- 4 normally open (NO) auxiliary contacts for expanded control options
- Snap-on front mounting for tool-less installation and removal—saves time during setup and maintenance
- Screw terminals for secure, vibration-resistant connections
- Compatible with Siemens 3RT1 Size S0, S2, and S3 3-pole contactors—buy online for flexible automation solutions
- Rated for both AC and DC operation, supporting versatile system designs
- High contact reliability: less than one incorrect switching per 100 million operations at 17 V, 5 mA
- IP20 degree of protection—ideal for enclosure installation
- 6 kV surge voltage rating for enhanced durability in industrial environments
- Conforms to IEC 60947-5-1, EN 60947, and UL 508 standards
- Mechanical service life of 10 million switching cycles—buy Siemens 3RH1921-1FA40 for long-term reliability
Technical Specs of Siemens 3RH1921-1FA40
Review Siemens 3RH1921-1FA40 specifications for detailed parameters before installation.
| Specification | Value |
|---|---|
| Contact Type | 4 NO |
| Mounting | Front |
| Terminals | Screw |
| Rated Voltage | 690 VAC |
| Rated Current | 0.41 A |
| Protection | IP20 |
| Mechanical Life | 10,000,000 cycles |
| Surge Voltage | 6 kV |
| Standards | IEC 60947-5-1, EN 60947, UL 508 |
Applications / Use Case
This Siemens 3RH1921-1FA40 is commonly used in industrial automation worldwide, including process control, machine automation, and production line systems. It’s ideal for OEMs, panel builders, and industrial maintenance teams needing reliable auxiliary contacts for status indication, interlocking, and feedback. Easily snap it onto Siemens 3RT1 contactors to add signaling and control functionality in conveyor systems, packaging machines, and factory control panels. With its robust design and high switching reliability, this contact block is built for repetitive use in harsh conditions—get Siemens 3RH1921-1FA40 for dependable automation performance.
Price & Availability
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Why Order from LeadTime.ca
Every product on LeadTime.ca is original OEM, supplied by trusted distributors, and ready for international delivery. Order now for worldwide delivery and experience genuine Siemens quality backed by expert support.
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