Siemens 3RB Overload Relay 1NO + 1NC, 4 A Contact Rating, 50 W, 230 Vac, 3P, SIRIUS
- RS Stock No.:
- 866-5535
- Mfr. Part No.:
- 3RB2056-1FW2
- Brand:
- Siemens
Subtotal (1 unit)*
£200.52
(exc. VAT)
£240.62
(inc. VAT)
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Units | Per unit |
|---|---|
| 1 + | £200.52 |
*price indicative
- RS Stock No.:
- 866-5535
- Mfr. Part No.:
- 3RB2056-1FW2
- Brand:
- Siemens
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Siemens | |
| Contact Current Rating | 4 A | |
| Range | SIRIUS | |
| Pole Configuration | 3P | |
| Series | 3RB | |
| Mounting Style | Direct Contactor | |
| Power Rating | 50 W | |
| Normal State Configuration | 1NO + 1NC | |
| Reset Method | Automatic, Manual, Remote | |
| Terminal Type | Screw | |
| Width | 120mm | |
| Number Of Auxiliary Contacts | 2 | |
| Length | 120mm | |
| Depth | 155mm | |
| Minimum Operating Temperature | -25°C | |
| Maximum Operating Temperature | +60°C | |
| Operating Temperature Range | -25 → +60 °C | |
| Contact Voltage Rating | 1 kV ac | |
| Control Voltage | 230 Vac | |
Select all | ||
|---|---|---|
Brand Siemens | ||
Contact Current Rating 4 A | ||
Range SIRIUS | ||
Pole Configuration 3P | ||
Series 3RB | ||
Mounting Style Direct Contactor | ||
Power Rating 50 W | ||
Normal State Configuration 1NO + 1NC | ||
Reset Method Automatic, Manual, Remote | ||
Terminal Type Screw | ||
Width 120mm | ||
Number Of Auxiliary Contacts 2 | ||
Length 120mm | ||
Depth 155mm | ||
Minimum Operating Temperature -25°C | ||
Maximum Operating Temperature +60°C | ||
Operating Temperature Range -25 → +60 °C | ||
Contact Voltage Rating 1 kV ac | ||
Control Voltage 230 Vac | ||
- COO (Country of Origin):
- DE
Siemens 3RB Series Overload Relay, 4A Contact Current Rating, 50W Power Rating - 3RB2056-1FW2
This overload relay is designed to provide effective electrical overload protection in various automation and electrical systems, primarily protecting motors and machinery from damage due to excessive current. Its robust construction ensures functionality in challenging environments, making it essential for professionals in automation and electrical sectors.
Features & Benefits
• Offers automatic, manual, and remote reset options for flexibility
• Includes 2 auxiliary contacts for enhanced functionality
• Operates with a control voltage of 230V AC for efficient performance
• Functions effectively within a temperature range of -25 to +60°C
• Utilises screw terminals for straightforward and secure connections
• Includes 2 auxiliary contacts for enhanced functionality
• Operates with a control voltage of 230V AC for efficient performance
• Functions effectively within a temperature range of -25 to +60°C
• Utilises screw terminals for straightforward and secure connections
Applications
• Used in direct contactor relay systems for motor protection
• Ideal for machinery that requires high temperature overload protection
• Suitable for automation setups needing efficient electrical overload protection
• Designed for involving 3 pole relay configurations
• Ideal for machinery that requires high temperature overload protection
• Suitable for automation setups needing efficient electrical overload protection
• Designed for involving 3 pole relay configurations
How can I reset this device after it trips?
It can be reset automatically, manually, or remotely based on your configuration.
What is the maximum current this device can handle?
It supports a contact current rating of up to 4A.
Can it be used with different types of motors?
Yes, it is compatible with various motor types, providing appropriate overload protection.
Siemens 3RN1 Thermistor Relays
3RN1 thermistor relays are a range of thermal protection devices, which when used in conjunction with external PTC thermistors, offer temperature monitoring of electrical drives, transformers and other critical components such as bearings. The 3RN1 range operates on the principle of closed-circuit current and are therefore self monitoring in the event of sensor wire breakage.