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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RH2911-1HA31 |
| Alternative Part Number | 3RH29111HA31 |
| Manufacturer | Siemens |
| Part Description | This is an auxiliary switch from the Siemens 3RH series. It features a snap-on mount design and has dimensions of 36 x 48.1 x 37.5 mm. |
| Short Description | The switch is designed for front side mounting and has 3 Normally Open (NO) and 1 Normally Closed (NC) current |
The Siemens 3RH2911-1HA31 is a high-quality auxiliary switch designed for optimal performance in various industrial applications. This front-side mounted switch features 3 Normally Open (NO) and 1 Normally Closed (NC) current paths, making it versatile for different circuit configurations. It's specifically designed for use with 3RH2 and 3RT2 contactor relays and power contactors.
The switch boasts an impressive mechanical service life of approximately 10 million switching cycles and an electrical endurance of 200,000 cycles at AC-15 at 230V. This ensures long-lasting durability and reliability in demanding environments.
With a protection class of IP20, it offers a degree of protection against touch by fingers and objects not greater than 12mm. The switch can operate efficiently in a wide range of ambient temperatures, from -25°C to +60°C during operation and -55°C to +80°C during storage.
The 3RH2911-1HA31 auxiliary switch is also equipped with screw-type terminals for auxiliary and control current circuits, accommodating a variety of conductor cross-sections. This makes installation and connection a breeze.
In terms of dimensions, the switch measures 36mm in width, 37.5mm in height, and 43.7mm in depth, making it compact enough for installation in tight spaces.
In summary, the Siemens 3RH2911-1HA31 auxiliary switch is a robust, reliable, and versatile component, designed to meet the rigorous demands of industrial applications.
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Frequently Asked Questions
What is the description of this part?
This part is an Auxiliary Switch from the Siemens 3RH Series. It features a snap-on mount and has dimensions of 36 x 48.1 x 37.5 mm. It has a current path of 3 NO + 1 NC, which includes 1 NC, 1 NO, 1 NO, and 1 NO. It is designed for 3RH2 and 3RT2 with a screw terminal.
What are the technical specifications of this part?
The part operates at an ambient temperature of -25 to +60 degrees Celsius during operation and -55 to +80 degrees Celsius during storage. It has a mechanical service life of 10,000,000 operating cycles and an electrical endurance of 200,000 operating cycles at AC-15 at 230V. The part has an insulation voltage of 690V with a degree of pollution 3 and a surge voltage resistance of 6kV.
What is the protection class of this part?
The part has a protection class IP20 on the front.
What is the operational current of the auxiliary contacts?
The operational current of the auxiliary contacts at AC-12 is 10A at 24V and 230V. The maximum operational current is 10A.
What is the type of mounting for this part?
This part uses snap-on mounting.
What is the design of the electrical connection for this part?
The part uses screw-type terminals for the auxiliary and control current circuit.
What is the contact reliability of this part?
The contact reliability of the auxiliary contacts is 1 faulty switching per 100 million (17 V, 1 mA).
What is the suitability for use of this part?
This part is suitable for use with contactor relay and power contactor.
Part conditions explained
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New unsealed: The product is in its original packaging, but the packaging has been opened or unsealed. It has never been used and should be in near pristine condition.
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Used: The product has been previously owned and has been used. It may show signs of wear and tear but is still functional and operational. The condition may vary depending on the specific item and its usage history.
