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Siemens 3RB2133-4QW1 — Overload Relays

Siemens 3RB2133-4QW1 SIRIUS Solid-State Overload Relay, Clas

MPN3RB2133-4QW1

Siemens SIRIUS 3RB2133-4QW1 solid-state overload relay, 3-pole, adjustable trip classes 5E/10E/20E/30E, ATEX Ex II (2) GD, screw terminals, 55 x 92 x 109 mm (WxHxD).

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

3RB2133-4QW1 — Identification
ParameterValue
Product brand nameSIRIUS
Product designationsolid-state overload relay
Combinable contactor sizesS2
Reference code (IEC 81346-2)F
3RB2133-4QW1 — Protection & Trip
ParameterValue
Overload current setting range6 ... 25 A
Trip classCLASS 5E, 10E, 20E and 30E adjustable
3RB2133-4QW1 — Electrical (main circuit)
ParameterValue
Poles (main circuit)3
Rated insulation voltage (AC, pollution degree 3)690 V
Rated surge withstand voltage6 kV
Main current circuitstraight-through transformers
Power loss at rated current (hot)0.05 W
Per pole0.02 W
3RB2133-4QW1 — Auxiliary contacts
ParameterValue
Auxiliary contacts: NO1
Auxiliary contacts: NC1
Auxiliary contacts: CO (changeover)0
Auxiliary switch short-circuit protection (required fuse)fuse gL/gG: 6 A
Switching current at 24 V2 A
Switching current at 60 V0.55 A
Switching current at 110 V0.3 A
Switching current at 120 V4 A
Switching current at 125 V0.3 A
Switching current at 220 V0.11 A
Switching current at 230 V3 A
3RB2133-4QW1 — Connection & Mounting
ParameterValue
Mounting / fastening methodstand-alone installation
Mounting positionany
Auxiliary/control circuit connection typescrew-type terminals
Removable aux./control terminalYes
Conductor cross-section: solid0.5 ... 4 mm², 2x (0.5 ... 2.5 mm²)
Conductor cross-section: finely stranded with ferrule0.5 ... 2.5 mm², 2x (0.5 ... 1.5 mm²)
Conductor range (AWG), auxiliary contacts2x (20 ... 14)
3RB2133-4QW1 — Environmental
ParameterValue
Operating temperature-25 ... +60 °C
Storage temperature-40 ... +80 °C
Transport temperature-40 ... +80 °C
Relative humidity, operating100 %
Max. installation altitude2 000 m
Shock resistance15g / 11 ms
3RB2133-4QW1 — Mechanical
ParameterValue
Width55 mm
Height92 mm
Depth109 mm
3RB2133-4QW1 — Specifications
ParameterValue
Type Of ProtectionPTB 06 ATEX 3001 Ex II (2) GD

Product details

Termination & Wiring

Power-circuit terminals accept solid conductors 0.5... 4 mm² (or 2x 0.5... 2.5 mm²) and finely stranded with end processing 0.5... 2.5 mm² (2x 0.5... 1.5 mm²). Auxiliary and control circuit connections use screw-type terminals; AWG equivalents for auxiliary contacts are 2x (20... 14). The relay provides one normally-closed auxiliary contact (NC) and no changeover contacts — verify your safety circuit topology; a missing NC on the overload could require an external auxiliary block.

Environmental & Immunity

Shock resistance is 15g / 11 ms, and surge voltage withstand is 6 kV. EMC immunity meets IEC 61000-4-4 severity 3: 2 kV on power ports, 1 kV on signal ports. The substance prohibitance date of 07/01/2006 aligns with early RoHS compliance expectations.

Frequently asked questions

Who supplies 3RB2133-4QW1 and how is it quoted for volume purchases?

The 3RB2133-4QW1 is supplied through independent industrial-automation distribution. Volume pricing and lead time are confirmed at quote time against an RFQ — no stock or price figures are published on this listing.

What compliance documentation does 3RB2133-4QW1 carry (RoHS, REACH, UL, IEC)?

The relay carries ATEX certification (PTB 06 ATEX 3001 Ex II (2) GD), meets IEC 61000-4-4 EMC severity 3, and has a substance prohibitance date of 07/01/2006 consistent with early RoHS requirements. Full compliance documentation is provided with the shipment.

MPN
3RB2133-4QW1