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Siemens 3RB2133-4QB0 Electronic Overload Relay 600V AC

$200.00 USD

Sale Sold out

ConditionSurplus - Untested MPN3RB2133-4QB0 Stock #0626-01502

Photos reflect current condition. Items differing from description may be eligible for return or refund — see our condition guide.

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Estimated package weight: 10.0 lbs

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Product Specifications

Manufacturer: Siemens
MPN / Model: 3RB2133-4QB0
Product Type: Electronic Overload Relay
Series: SIRIUS
Current Setting Range: 6 to 25 A
Trip Class: Class 5 to 30
Contact Configuration: 1 NC / 1 NO
Contactor Size: S2
Voltage Rating: 600V AC, 50/60 Hz
Insulation Voltage (Ui): 690V
Connection Type: Screw Terminal
Reset: Manual / Automatic
Short Circuit Rating: 5 kA at 600V
Max Fuse: 100A, Class RK5
Certifications: UL Listed, CSA, CE, ATEX (PTB 06 ATEX 3001)
Country of Origin: Czech Republic
Instruction Order No.: 3ZX1012-0RB20-1AA1
Serial / Lot Reference: LO140203

Product Description

The Siemens 3RB2133-4QB0 is an electronic overload relay from the SIRIUS series, rated for 6 to 25A with adjustable trip class from Class 5 to 30. It is designed for contactor size S2 and connects via screw-type terminals. The unit carries a 1 NC / 1 NO auxiliary contact configuration and supports both manual and automatic reset modes. Voltage rating is 600V AC at 50/60 Hz, with a short circuit rating of 5 kA at 600V and a maximum fuse rating of 100A Class RK5. Certifications visible on the nameplate include UL Listed, CSA, CE, and ATEX (PTB 06 ATEX 3001). Manufactured in the Czech Republic. The 3RB2133-4QB0 is a phased-out product in the SIRIUS 3RB2 line; the preferred successor per Siemens is the 3RB3123-4QB0. Buyers sourcing this exact catalog number for replacement or spare inventory can use the MPN 3RB2133-4QB0 to match against existing installation documentation.

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Frequently Asked Questions

Shipping & Handling

Most orders ship within 1–2 business days via UPS, but expedited same-day handling is available as an add-on to orders in cart. Larger equipment ships via freight carrier. Use the shipping estimator above for a location-specific quote. Local pickup is also available at our Fairfield, IL facility, typically ready within 4 hours.

Returns & Condition

All items are sold as-described based on the photos and condition listed. If an item arrives differing from its description, it may be eligible for return or refund. See our full condition guide for details on our grading terms.

Payment Options

We accept all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available by selecting "Purchase Order / Wire Transfer" at checkout. Payment is due prior to shipment. Contact us for custom terms on established accounts. Tax exemptions are honored if proper documentation is provided.