Siemens
Siemens SIRIUS 3RU2126-4BB0 overload relay
Manufacturer part number: 3RU2126-4BB0ESYS SKU: 3RU2126-4BB0
Net unit price, VAT 0%
€29.57
VAT 25.5% and delivery are shown separately in the request summary.
Current availability
Current available stock: 23 pcs
- Minimum order
- 1 pcs
- Order increment
- 1 pcs
- Availability checked
- 1 Sept 2026, 08:45
Siemens SIRIUS 3RU2126-4BB0 overload relay. Key selection data: Adjustable current range: 14 ... 20 A; Operational current AC-3e at 400 V: 20 A; Compatible device size: S0; Frame size: S0; Trip class: CLASS 10; Reset mode: manual / automatic.
pcs
Information for product selection
Typical applications
- Thermal overload protection for motors
- Overload monitoring in contactor motor feeders
- Replacement in an existing Siemens assembly when article number 3RU2126-4BB0 matches
Key specifications
- Reset mode
- manual / automatic
- Frame size
- S0
- Adjustable current range
- 14 ... 20 A
- Operational current AC-3e at 400 V
- 20 A
- Mounting method
- contactor mounting
- Compatible device size
- S0
Show additional verified specifications
- Trip class
- CLASS 10
- Overload release type
- thermal
- Number of poles
- 3
- Rated operational voltage
- 690 V
- Frequency
- 50 ... 60 Hz
- Terminal type
- screw-type terminals
Lifecycle
- Status
- Active
Compatibility and related parts
S0
Product series: Compatible device size
