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Siemens 3UG5461-1AA41 — Process / Temperature Controllers

Siemens 3UG5461-1AA41 SIRIUS DC Load Monitoring Relay, -8 to

MPN3UG5461-1AA41
NRND

Siemens SIRIUS DC load monitoring relay, 3UG5461-1AA41, measurable current -8 to +8 A, adjustable voltage 0–60 V, PROFINET IO, IP20, 22.5 mm wide.

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

Specifications

3UG5461-1AA41 — Identification
ParameterValue
Product functionDC load monitoring relay
Product designationDC load monitoring relay
Product line / brand nameSIRIUS
3UG5461-1AA41 — Communication
ParameterValue
Electrical connection typescrew-type terminals
3UG5461-1AA41 — Environmental
ParameterValue
Ingress protection (IP rating), wiredIP20
Installation altitude, max.2 000 m
3UG5461-1AA41 — Mechanical
ParameterValue
Fastening methodscrew and snap-on mounting onto 35 mm DIN rail
Mounting positionany
Width22.5 mm
Height100 mm
Depth141.6 mm
Conductor cross-section, solid1x (0.5 ... 4 mm²), 2x (0.5 ... 2.5 mm²)
Conductor cross-section, finely stranded (with ferrule)2x (0,5 ... 1,5 mm²), 1x (0,5 ... 4 mm²)
Mounting clearance, top50 mm
Mounting clearance, rear0 mm
Mounting clearance, side3 mm
Mounting clearance, front0 mm

Product details

The Siemens 3UG5461-1AA41 is a SIRIUS DC load monitoring relay that measures current from -8 to +8 A and adjustable voltage from 0 to 60 V, with PROFINET IO connectivity for integration into automated systems. It detects overcurrent, undercurrent, overvoltage, and undervoltage on DC circuits, with a response time up to 100 ms. Galvanic isolation between input and output keeps the control side protected from faults on the monitored line.

Wire terminals accept 1x 0.5–4 mm² or 2x 0.5–2.5 mm² solid or stranded. Strip length? 8 mm avoids whiskers under the cage.

Engineering Notes

Power loss max 3 W. Compliance with IEC 60947-1 and IEC 61000-6-2/6-4 for EMC. PROFINET IO conformity class A — works with standard controllers but doesn't include isochronous real-time (IRT) for motion control.

Frequently asked questions

What does the -8 to +8 A current range mean for my application?

It means the relay can monitor DC currents flowing in either direction (bidirectional), up to 8 A in magnitude. Use it for load monitoring on DC motor drives, battery chargers, or DC power supplies where current can reverse.

Can I use this relay with a 24 V DC system?

Yes, the adjustable voltage range covers 0 to 60 V DC, so 24 V is well within range. The relay also draws 1 A at 24 V for its own supply.

What compliance documentation does the 3UG5461-1AA41 carry?

It complies with IEC 60947-1 and IEC 61000-6-2/6-4 for EMC. Protection class is IP20. For specific RoHS/REACH/UL declarations, check the manufacturer documentation or request it with your RFQ.

MPN
3UG5461-1AA41