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Siemens 3RB2153-4FC2 — Overload Relays

3RB2153-4FC2 SIRIUS Overload Relay, 200 A, Adjustable Trip C

MPN3RB2153-4FC2
Active

Siemens SIRIUS 3RB2153-4FC2 solid-state overload relay, 200 A thermal, 1000 V rated, adjustable CLASS 5E to 30E.

Siemens 3RB2153-4FC2 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RB2153-4FC2 — Identification
ParameterValue
Product brand nameSIRIUS
Product designationsolid-state overload relay
Frame size (overload relay)S6
Combinable contactor sizesS6
Reference code (IEC 81346-2)F
3RB2153-4FC2 — Protection & Trip
ParameterValue
Overload current setting range50 ... 200 A
Trip classCLASS 5E, 10E, 20E and 30E adjustable
Overload release typeelectronic
3RB2153-4FC2 — Electrical (main circuit)
ParameterValue
Rated operational current200 A
Poles (main circuit)3
Rated operating frequency50 ... 60 Hz
Rated insulation voltage (AC, pollution degree 3)1 000 V
Rated value (AC-3e), max.1 000 V
Rated surge withstand voltage8 kV
Main current circuitbusbar connection
3RB2153-4FC2 — Auxiliary contacts
ParameterValue
Auxiliary contacts: NO1
Auxiliary contacts: NC1
Auxiliary contacts: CO (changeover)0
Auxiliary switch short-circuit protection (required fuse)fuse 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
3RB2153-4FC2 — Connection & Mounting
ParameterValue
Mounting / fastening methodContactor mounting/stand-alone installation
Mounting positionany
Main-circuit connector arrangementTop and bottom
Auxiliary/control circuit connection typescrew-type terminals
Removable aux./control terminalYes
Conductor cross-section: solid1x (0.5 ... 4 mm²), 2x (0.5 ... 2.5 mm²)
Conductor cross-section: solid or stranded1x (0,5 ... 4 mm²), 2x (0,5 ... 2,5 mm²)
Conductor cross-section: finely stranded with ferrule1x (0.5 ... 2.5 mm²), 2x (0.5 ... 1.5 mm²)
Conductor range (AWG), auxiliary contacts2x (20 ... 14)
3RB2153-4FC2 — Environmental
ParameterValue
Operating temperature-25 ... +60 °C
Storage temperature-40 ... +80 °C
Transport temperature-40 ... +80 °C
Relative humidity, operating10 ... 95 %
Max. installation altitude2 000 m
Shock resistance15g / 11 ms
3RB2153-4FC2 — Mechanical
ParameterValue
Width120 mm
Height119 mm
Depth155 mm

Product details

SIRIUS solid-state overload relay – what it does

Siemens 3RB2153-4FC2 is a SIRIUS solid-state overload relay, size S6, for motor protection up to 200 A continuous with adjustable CLASS 5E–30E. Integrated auxiliary switch signals a 'tripped' message.

Mounts anywhere, fits standard panels

Fastens directly to a contactor (same SIRIUS frame) or as a standalone unit on the panel. Width 120 mm, height 119 mm, depth 155 mm – that 155 mm depth is what matters for enclosure clearance. Mounting position any, so vertical or horizontal cable trays work. Vibration tested to 1–6 Hz 15 mm amplitude, 6–500 Hz at 20 m/s², 10 cycles. Shock rated 15 g/11 ms. Terminals accept 1x 0.5–4 mm² solid or 2x 0.5–2.5 mm² stranded. Main circuit connection is busbar; auxiliary contacts integrated.

Frequently asked questions

What does the 'for message tripped' note mean on this part?

The integrated auxiliary switch provides a dedicated signaling contact that changes state when the overload relay trips, so the controller receives a 'tripped' message – it's a direct binary status indication, not a communication message.

What is the depth of 3RB2153-4FC2?

The depth is 155 mm. That dimension is the front-to-back clearance you need in the enclosure.

MPN
3RB2153-4FC2