VEX-ELIMECS company logo
Catalog>Siemens>Low-Voltage Controls and Distribution>Relays>Overload Relays>Electronic Overload Relay>3RB1, 3RB20, 3RB21 SIRIUS electronic overload rel
[siemens_summary]
[catalog_children]
[catalog_search_products]
3RB1, 3RB20, 3RB21 SIRIUS electronic overload rel

3RB1, 3RB20, 3RB21 SIRIUS electronic overload rel

Items 13 - 24 of 139 from Siemens ⍾ Last modified Sep 6, 2025
▲

3RB1, 3RB20, 3RB21 SIRIUS electronic overload rel ⍾ Page 2

1234…12
Siemens – 3RB2133-4QD0
Product detailsAdd to RFQ
3RB2133-4QD0 - Siemens
OVERLOAD RELAY 6...25 A FOR MOTOR PROTECTION SIZE S2, CLASS 5...30 FOR MOUNTING ONTO CONT. MAIN CIRCUIT: SCREW CONNECTION AUX. CIRCUIT: SPRINGLOAD. TERM. MANUAL-AUTOMATIC-RESET INT. EARTH FAULT DETECTION
Siemens – 3RB2133-4UX1
Product detailsAdd to RFQ
3RB2133-4UX1 - Siemens
OVERLOAD RELAY 12.5...50 A FOR MOTOR PROTECTION SIZE S2, CLASS 5...30 STAND-ALONE INSTALLATION MAIN CIRCUIT: THROUGH TRANSF. AUX. CIRCUIT: SPRINGLOAD. TERM. MANUAL-AUTOMATIC-RESET INT. EARTH FAULT DETECTION
Siemens – 3RB2133-4UW1
Product detailsAdd to RFQ
3RB2133-4UW1 - Siemens
OVERLOAD RELAY 12.5...50 A FOR MOTOR PROTECTION SIZE S2, CLASS 5...30 STAND-ALONE INSTALLATION MAIN CIRCUIT: THROUGH TRANSF. AUX. CIRCUIT: SCREW CONNECTION MANUAL-AUTOMATIC-RESET INT. EARTH FAULT DETECTION
Siemens – 3RB2143-4UB0
Product detailsAdd to RFQ
3RB2143-4UB0 - Siemens
OVERLOAD RELAY 12.5...50 A FOR MOTOR PROTECTION SIZE S3, CLASS 5...30 FOR MOUNTING ONTO CONT. MAIN CIRCUIT: SCREW CONNECTION AUX. CIRCUIT: SCREW CONNECTION MANUAL-AUTOMATIC-RESET INT. EARTH FAULT DETECTION
Siemens – 3RB2133-4QX1
Product detailsAdd to RFQ
3RB2133-4QX1 - Siemens
OVERLOAD RELAY 6...25 A FOR MOTOR PROTECTION SIZE S2, CLASS 5...30 STAND-ALONE INSTALLATION MAIN CIRCUIT: THROUGH TRANSF. AUX. CIRCUIT: SPRINGLOAD. TERM. MANUAL-AUTOMATIC-RESET INT. EARTH FAULT DETECTION
Siemens – 3RB2133-4UB0
Product detailsAdd to RFQ
3RB2133-4UB0 - Siemens
OVERLOAD RELAY 12.5...50 A FOR MOTOR PROTECTION SIZE S2, CLASS 5...30 FOR MOUNTING ONTO CONT. MAIN CIRCUIT: SCREW CONNECTION AUX. CIRCUIT: SCREW CONNECTION MANUAL-AUTOMATIC-RESET INT. EARTH FAULT DETECTION
Siemens – 3RB2133-4QW1
Product detailsAdd to RFQ
3RB2133-4QW1 - Siemens
OVERLOAD RELAY 6...25 A FOR MOTOR PROTECTION SIZE S2, CLASS 5...30 STAND-ALONE INSTALLATION MAIN CIRCUIT: THROUGH TRANSF. AUX. CIRCUIT: SCREW CONNECTION MANUAL-AUTOMATIC-RESET INT. EARTH FAULT DETECTION
Siemens – 3RB2143-4EB0
Product detailsAdd to RFQ
3RB2143-4EB0 - Siemens
OVERLOAD RELAY 25...100 A FOR MOTOR PROTECTION SIZE S3, CLASS 5...30 FOR MOUNTING ONTO CONT. MAIN CIRCUIT: SCREW CONNECTION AUX. CIRCUIT: SCREW CONNECTION MANUAL-AUTOMATIC-RESET INT. EARTH FAULT DETECTION
Siemens – 3RB2113-4SD0
Product detailsAdd to RFQ
3RB2113-4SD0 - Siemens
OVERLOAD RELAY 3...12 A FOR MOTOR PROTECTION SIZE S00, CLASS 5...30 FOR MOUNTING ONTO CONT. MAIN CIRCUIT: SCREW CONNECTION AUX. CIRCUIT: SPRINGLOAD. TERM. MANUAL-AUTOMATIC-RESET INT. EARTH FAULT DETECTION
Siemens – 3RB2123-4NB0
Product detailsAdd to RFQ
3RB2123-4NB0 - Siemens
OVERLOAD RELAY 0.32...1.25 A FOR MOTOR PROTECTION SZ S0, CLASS 5...30 F. MOUNTING ONTO CONTACTORS MAIN CIRCUIT: SCREW TERMINAL AUX. CIRCUIT: SCREW TERMINAL MANUAL-AUTOMATIC-RESET INT. GROUND FAULT DETECTION
Siemens – 3RB2133-4QB0
Product detailsAdd to RFQ
3RB2133-4QB0 - Siemens
OVERLOAD RELAY 6...25 A FOR MOTOR PROTECTION SIZE S2, CLASS 5...30 FOR MOUNTING ONTO CONT. MAIN CIRCUIT: SCREW CONNECTION AUX. CIRCUIT: SCREW CONNECTION MANUAL-AUTOMATIC-RESET INT. EARTH FAULT DETECTION
Siemens – 3RB2133-4UD0
Product detailsAdd to RFQ
3RB2133-4UD0 - Siemens
OVERLOAD RELAY 12.5...50 A FOR MOTOR PROTECTION SIZE S2, CLASS 5...30 FOR MOUNTING ONTO CONT. MAIN CIRCUIT: SCREW CONNECTION AUX. CIRCUIT: SPRINGLOAD. TERM. MANUAL-AUTOMATIC-RESET INT. EARTH FAULT DETECTION