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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RH2911-1GA40 |
| Alternative Part Number | 3RH29111GA40 |
| Manufacturer | Siemens |
| Product Type | Auxiliary Switch Block |
| Rated Insulation Voltage | 690 V |
| Mounting | Snap-On Mount |
| Number of Contacts | 4 Normally Open (NO) |
| Protection Class | IP20 |
| Connection Type | Screw |
| Mechanical Operating Cycles | 10,000,000 cycles |
| Rated Current | 10 A |
| Dimensions | 36 x 48.1 x 37.5 mm |
| Ambient Operating Temperature | -25 … +60 °C during operation, -55 … +80 °C during storage |
| Electrical Operating Cycles | 200,000 at AC-15 / at 230 V |
| Contact Reliability | One incorrect switching operation of 100 million switching operations (17 V, 1 mA) |
| Insulation Voltage | With degree of pollution 3, rated value 690 V |
| Impulse Voltage Resistance | Rated value 6 kV |
| Commodity Code | 853650 |
| Suitability for Use | Contactor relay and power contactor |
| Product Brand Name | SIRIUS |
| Contact Reliability of Aux. Contacts | One incorrect switching operation of 100 million switching operations (17 V, 1 mA) |
| Type of Mounting | Snap-on mounting |
| Width | 36 mm |
| Height | 37.5 mm |
| Depth | 43.7 mm |
| Design of Electrical Connection | Screw-type terminals for auxiliary and control current circuit |
| Connectable Conductor Cross-section | For auxiliary contacts: solid 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) |
| Safety-related Parameter | Positively driven operation to IEC 60947-5-1, with 3RH2 |
The Siemens 3RH2911-1GA40 is a meticulously engineered auxiliary switch block designed to enhance the functionality of contactor relays. This component is a vital addition to the SIRIUS product family, renowned for its reliability and versatility in various industrial applications. With an insulation voltage rated at 690 V and an impulse voltage resistance of 6 kV, it ensures robust performance in demanding electrical environments.
This switch block features a snap-on mounting design, allowing for quick and straightforward installation. It boasts four normally open (NO) contacts, providing a reliable means to expand control logic within circuits. The compact dimensions of 36 x 48.1 x 37.5 mm make it an ideal choice for space-constrained scenarios, without compromising on efficiency.
Constructed to withstand mechanical operating cycles of up to 10 million and electrical operating cycles at AC-15 at 230 V up to 200,000, the 3RH2911-1GA40 is built for longevity. Its screw-type terminals facilitate secure and stable connections, accommodating a range of conductor cross-sections for auxiliary contacts.
The unit operates effectively within a broad ambient temperature range, from -25 °C to +60 °C during operation, and -55 °C to +80 °C during storage, ensuring consistent performance across various climates. With an IP20 protection class rating on the front, it is safeguarded against solid objects larger than 12.5 mm, adding a layer of durability.
The 3RH2911-1GA40 is a testament to Siemens' commitment to quality, offering a dependable solution for enhancing control systems in industrial settings. Its integration into existing setups provides a seamless upgrade path for those seeking to maintain or improve their electrical control schemes with a product that embodies precision and resilience.
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Frequently Asked Questions
What is the insulation voltage rating for this auxiliary switch block?
The insulation voltage rating for the Siemens auxiliary switch block is 690 V, with a degree of pollution 3.
Can you describe the mounting type for this component?
This auxiliary switch block is designed for snap-on mounting, allowing for easy and secure attachment to compatible devices.
What is the protection class of this auxiliary switch block?
The protection class for this component is IP20, which indicates protection against solid objects larger than 12mm but not against water.
What are the ambient temperature limits for operating this switch block?
The switch block can operate within an ambient temperature range of -25 °C to +60 °C, and can be stored in temperatures ranging from -55 °C to +80 °C.
How many mechanical operating cycles can this switch block withstand?
The switch block is designed to withstand typically 10,000,000 mechanical operating cycles.
What is the typical electrical operating cycles at AC-15 at 230 V?
At AC-15 and 230 V, the typical electrical operating cycles for this switch block is 200,000.
What is the contact reliability for the auxiliary contacts?
The contact reliability for the auxiliary contacts is one faulty switching per 100 million operations at 17 V, 1 mA.
What are the dimensions of this auxiliary switch block?
The dimensions of the switch block are 36 mm in width, 37.5 mm in height, and 43.7 mm in depth.
What type of electrical connection does this switch block support?
The switch block supports screw-type terminals for auxiliary and control current circuits.
Does this switch block have a mirror contact function according to IEC 60947-4-1?
No, this switch block does not have a mirror contact function as per IEC 60947-4-1.
Is the operation of this switch block positively driven according to IEC 60947-5-1?
Yes, the switch block operates with positively driven operation according to IEC 60947-5-1, when used with 3RH2 contactor relays.
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