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Siemens 3RB2026-2QB0-ZX95 — Overload Relays

Siemens 3RB2026-2QB0-ZX95 SIRIUS solid-state overload relay,

MPN3RB2026-2QB0-ZX95

Siemens SIRIUS solid-state overload relay, 3RB2026-2QB0-ZX95, CLASS 20E, ATEX Ex II (2) GD, screw terminals, 75 mm depth, contactor mounting.

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

Specifications

3RB2026-2QB0-ZX95 — Identification
ParameterValue
Product brand nameSIRIUS
Product designationsolid-state overload relay
Combinable contactor sizesS0
Reference code (IEC 81346-2)F
3RB2026-2QB0-ZX95 — Protection & Trip
ParameterValue
Overload current setting range6 ... 25 A
Trip classCLASS 20E
3RB2026-2QB0-ZX95 — Electrical (main circuit)
ParameterValue
Poles (main circuit)3
Rated insulation voltage (AC, pollution degree 3)690 V
Rated surge withstand voltage6 kV
Main current circuitscrew-type terminals
Power loss at rated current (hot)0.05 W
Per pole0.02 W
3RB2026-2QB0-ZX95 — 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
3RB2026-2QB0-ZX95 — Connection & Mounting
ParameterValue
Mounting / fastening methodContactor mounting
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), main contacts2x (14 ... 10)
Conductor range (AWG), auxiliary contacts2x (20 ... 14)
3RB2026-2QB0-ZX95 — 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
3RB2026-2QB0-ZX95 — Mechanical
ParameterValue
Width45 mm
Height73 mm
Depth75 mm
3RB2026-2QB0-ZX95 — Specifications
ParameterValue
Type Of ProtectionPTB 06 ATEX 3001 Ex II (2) GD

Product details

The Siemens SIRIUS 3RB2026-2QB0-ZX95 is a solid-state overload relay, part of the SIRIUS modular system.

Trip Class 20E is the headline rating: it allows the relay to ride through normal starting inrush (up to 20 seconds at 7.2× FLA) without nuisance tripping, but still protects the motor against sustained overloads. The relay mounts directly onto a contactor (fastening method: contactor mounting), saving DIN-rail space in a crowded panel. Surge voltage resistance rated at 6 kV and burst immunity at 2 kV on power ports (severity 3 per IEC 61000-4-4) mean it holds up in electrically noisy panels with contactors and drives nearby.

Where it's deployed

This relay is sized for a motor branch circuit inside a control panel. It snaps onto a contactor (typically a SIRIUS 3RT2 series) and connects via screw terminals — solid/stranded 0.5 to 4 mm² per pole, or 2× 0.5 to 2.5 mm². ATEX certification Ex II (2) GD allows use in potentially explosive atmospheres (Zone 2 gas, Zone 22 dust) when paired with an appropriate contactor and upstream protection.

Frequently asked questions

What is the trip class of 3RB2026-2QB0-ZX95?

The trip class is CLASS 20E, which provides a 20-second trip time at 7.2× the set current, suitable for standard motor starts.

Where can I buy 3RB2026-2QB0-ZX95 and get a price?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

What compliance documentation does 3RB2026-2QB0-ZX95 carry?

The relay carries ATEX certification PTB 06 ATEX 3001 Ex II (2) GD for explosive atmospheres, and is RoHS compliant per substance prohibition date 07/01/2006. EMC immunity includes burst 2 kV/1 kV per IEC 61000-4-4 severity 3.

MPN
3RB2026-2QB0-ZX95