SIEMENS SIRIUS Auxiliary Contact Block 3TX4001-2A
$ 250
Part No: 3TX4001-2A
SIEMENS SIRIUS Auxiliary Contact Block with 1 NC contact, rated for 230–690 VAC and up to 10 A. Features captive screw terminals, snap-on mounting, and high mechanical durability. Suitable for use with contactor relays and power contactors.
SIEMENS SIRIUS Auxiliary Contact Block 3TX4001-2A
Reliable auxiliary contact block designed for use with contactor relays and power contactors. Features a single NC contact, wide voltage compatibility from 230 to 690 VAC, and high mechanical durability with up to 10 million switching cycles. The block includes captive screw terminals for secure connections and supports snap-on mounting for quick installation. Compliant with IEC 60947 standards and suitable for demanding industrial environments.
| Part Number | 3TX4001-2A |
|---|---|
| Product Name | SIRIUS Auxiliary Contact Block |
| Brand | Siemens |
| Suitability | For contactor relays and power contactors |
| Contact Arrangement | 1 NC (Normally Closed) |
| Electrical Rating | 230–690 VAC, 5.6–1.8 A |
| Protection Class (Front) | IP20 |
| Mounting Type | Snap-on |
| Terminal Type | Captive screw |
| Mechanical Service Life | 10,000,000 switching cycles |
| Insulation Voltage | 690 V |
| Surge Voltage Resistance | 6 kV |
| Ambient Temperature (Operation) | -25 °C to +55 °C |
| Ambient Temperature (Storage) | -55 °C to +80 °C |
| Auxiliary Contacts (AC-15) | 5.6 A @ 230 V, 3.6 A @ 400 V, 2.3 A @ 690 V |
| Auxiliary Contacts (DC-13) | 10 A @ 24 V, 5 A @ 60 V, 1.14 A @ 110 V, 0.48 A @ 220 V |
| Positively Driven Operation | Yes (per IEC 60947-5-1) |
| Width | 12 mm |
| Height | 70 mm |
| Depth | 51.5 mm |
| Conductor Size (Stranded with Ferrule) | 2x (0.5–1.0 mm²), 2x (0.75–2.5 mm²) |
| AWG Conductor Range | 2x (18–12 AWG) |



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