Siemens, SIRIUS Overload Relay 1 NO/1 NC, 4A F.L.C, 4A Contact Rating, 0.1 W 3P

Subtotal (1 unit)*

$462.40

(exc. GST)

$508.64

(inc. GST)

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  • Ready to ship from 19 May 2026
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1 +$462.40

*price indicative

RS Stock No.:
124-3054
Mfr. Part No.:
3RB3113-4PB0
Brand:
Siemens
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Brand

Siemens

Product Type

Overload Relay

FLC Motor Rating

4A

Relay Contact Current

4A

Series

SIRIUS

Mount Type

DIN Rail

Power Rating

0.1W

Pole and Throw Configuration

3P

Normal State Configuration

1 NO/1 NC

Terminal Type

Screw

IP Rating

IP20

Reset Method

Automatic & Manual

Adjustable Current Range

1 to 4 A

Number of Auxiliary Contacts

2

Minimum Operating Temperature

-25°C

Width

72.5mm

Length

45mm

Maximum Operating Temperature

60°C

Contact Voltage

690V ac

Standards/Approvals

PTB 09 ATEX 3001

Depth

64.8mm

Supply Voltage

690V ac

RoHS Status: Exempt

3RB21 Range


Internal power supply

Auxiliary contacts 1 NO+1NC

Manual/Automatic Reset

Switching position indicator

Internal ground fault

Eletrical remote reset

Test function

Phase failure/unbalance sensitivity

Selectable trip class 5,10,20 and 30 operation

Electronic Overload Relays


The 3RB2 range of Solid State Electronic overloads can be connected directly to Siemens SIRIUS contactors to provide accurate motor overload protection with enhanced single phase sensitivity,Application: Protection of 3 phase AC motors in sinusoidal 50/60Hz network. These relays are not suitable for the protection of single phase or DC loads,Select according to motor full load current and contactor frame size e,g. S00

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