Siemens 3RB Overload Relay 1NO + 1NC, 4 A Contact Rating, 250 kW, 3P, SIRIUS
- RS Stock No.:
- 751-8860
- Mfr. Part No.:
- 3RB2066-1MC2
- Brand:
- Siemens
Subtotal (1 unit)*
£390.77
(exc. VAT)
£468.92
(inc. VAT)
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In Stock
- 2 unit(s) ready to ship from another location
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Units | Per unit |
|---|---|
| 1 + | £390.77 |
*price indicative
- RS Stock No.:
- 751-8860
- Mfr. Part No.:
- 3RB2066-1MC2
- 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 | |
| Power Rating | 250 kW | |
| Normal State Configuration | 1NO + 1NC | |
| Terminal Type | Screw | |
| Number Of Auxiliary Contacts | 2 | |
| Width | 85mm | |
| Length | 145mm | |
| Depth | 156mm | |
| Maximum Operating Temperature | +60°C | |
| Minimum Operating Temperature | -25°C | |
| Operating Temperature Range | -25 → +60 °C | |
| Contact Voltage Rating | 220 V ac, 230 V ac | |
Select all | ||
|---|---|---|
Brand Siemens | ||
Contact Current Rating 4 A | ||
Range SIRIUS | ||
Pole Configuration 3P | ||
Series 3RB | ||
Power Rating 250 kW | ||
Normal State Configuration 1NO + 1NC | ||
Terminal Type Screw | ||
Number Of Auxiliary Contacts 2 | ||
Width 85mm | ||
Length 145mm | ||
Depth 156mm | ||
Maximum Operating Temperature +60°C | ||
Minimum Operating Temperature -25°C | ||
Operating Temperature Range -25 → +60 °C | ||
Contact Voltage Rating 220 V ac, 230 V ac | ||
- COO (Country of Origin):
- DE
3RB20 Range
Internal power supply
Auxiliary contacts 1 NO+1NC
Manual/Automatic Reset
Switching position indicator
Test function
Phase failure/unbalance sensitivity
Auxiliary contacts 1 NO+1NC
Manual/Automatic Reset
Switching position indicator
Test function
Phase failure/unbalance sensitivity
Siemens SIRIUS Classic Overload Relay, 250kW, 4A - 3RB Series - 3RB2066-1MC2
Protect your industrial motors from overheating due to overload with this robust relay from Siemens' SIRIUS Classic range. It functions as part of the motor starter and works by monitoring the current flowing in the circuit. When the current rises, it'll trip above a set limit over a period of time and cut off power to the motor, protecting it from damage. This overload relay has a test function, so you can easily check that it's in good working condition. Manual and automatic reset options enable a quick restart after it's tripped. You can easily connect cables to this relay thanks to its screw terminals, which make installation quick and efficient.
• Power rating of 250kW for heavy-duty industrial use
• Broad operating temperature range of -25°C to +60°C for use in demanding environments
• Thermoplastic housing material is durable and impact resistant
• Light weight of 1.8kg for easy handling
• Broad operating temperature range of -25°C to +60°C for use in demanding environments
• Thermoplastic housing material is durable and impact resistant
• Light weight of 1.8kg for easy handling
How do I maintain this overload relay?
Maintain this relay by carrying out regular cleaning and rust removal. It's also important to check and tighten any loose screws to avoid heat accumulation from partial contacts. Frequent testing with a simulated overload current will flag up any performance issues.
Electronic Overload Relays
The 3RB2 range of Solid State Electronic overloads can be connected directly to Siemens SIRIUS contactors to provide accurate motor overload protection with enhanced single phase sensitivity,Application: Protection of 3 phase AC motors in sinusoidal 50/60Hz network. These relays are not suitable for the protection of single phase or DC loads,Select according to motor full load current and contactor frame size e,g. S00