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Siemens 3RW5527-1HA04 Soft Starter, 200-480 V, ATEX

MPN3RW5527-1HA04

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Siemens SIRIUS 3RW55 soft starter, order code 3RW5527-1HA04, rated 200-480 V, ATEX and IECEx certified, trip class 10A/10E/20E/30E per IEC 60947-4-2, screw terminals, 185 mm wide, 306 mm high, 203 mm deep.

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

Specifications

3RW5527-1HA04 — Identification
Parameter	Value
Product designation	Soft starter
Product brand name	SIRIUS

3RW5527-1HA04 — Power & Motor Rating
Parameter	Value
Rated motor power at 400 V (40 °C)	45 kW
Rated motor power at 230 V (40 °C)	22 kW
Rated operational current at 40 °C	161 A
Rated operational current at 50 °C	143 A
Rated operational current at 60 °C	131 A
Rated insulation voltage	480 V
Minimum settable current (% of Ie)	10 %; Relative to set Ie
Power loss during startup (50 °C)	1 065 W

3RW5527-1HA04 — Control & Connection
Parameter	Value
Control supply voltage type	AC/DC
Rated voltage at 50 Hz	24 V
Rated voltage at 60 Hz	24 V
Main circuit terminal type	box terminal
Control circuit wire range, solid	1x (0.5 ... 4.0 mm²), 2x (0.5 ... 2.5 mm²)
Control circuit wire range, finely stranded (with ferrule)	1x (0.5 ... 2.5 mm²), 2x (0.5 ... 1.5 mm²)
Analog output	Yes; 4 ... 20 mA (default) / 0 ... 10 V
Auxiliary contact rated current, AC-15 at 250 V	3 A
Auxiliary contact rating (UL)	R300-B300
Control supply voltage tolerance, AC 50 Hz (max.)	20 %
Control supply voltage tolerance, AC 50 Hz (min.)	-20 %
Control supply voltage tolerance, AC 60 Hz (max.)	20 %
Control supply voltage tolerance, AC 60 Hz (min.)	-20 %
Control supply frequency tolerance (max.)	10 %
Control supply frequency tolerance (min.)	-10 %
Operating frequency tolerance (max.)	10 %
Operating frequency tolerance (min.)	-10 %
Operating voltage tolerance, inside-delta (max.)	10 %
Operating voltage tolerance, inside-delta (min.)	-15 %

3RW5527-1HA04 — Protection & Features
Parameter	Value
Motor overload protection	Yes; Full motor protection (thermistor motor protection and electronic motor overload protection) / When using the motor overload protection according to ATEX, an upstream contactor is required in inside-delta circuit.
Thermistor motor protection	Yes; Type A PTC or Klixon / Thermoclick
Adjustable current limitation	Yes
Inside-delta connection	Yes
Intrinsic device protection	Yes
Pollution degree	3, acc. to IEC 60947-4-2

3RW5527-1HA04 — Mechanical
Parameter	Value
Height	306 mm
Width	185 mm
Depth	203 mm
Weight	7.15 kg
Mounting position	Vertical (can be rotated +/- 90° and tilted forward or backward +/- 22.5°)
Fastening method	screw fixing
Mounting clearance, top	100 mm
Mounting clearance, bottom	75 mm
Mounting clearance, side	5 mm
Mounting clearance, front	10 mm

3RW5527-1HA04 — Environmental
Parameter	Value
Operating temperature range	-25 ... +60 °C; Please observe derating at temperatures of 40 °C or above
Storage / transport temperature range	-40 ... +80 °C
Max. installation altitude	5 000 m; Derating as of 1000 m, see catalog
Ambient class during operation (IEC 60721)	3K6 (no ice formation, only occasional condensation), 3C3 (no salt mist), 3S2 (sand must not get into the devices), 3M6
Ambient class during transport (IEC 60721)	2K2, 2C1, 2S1, 2M2 (max. fall height 0.3 m)

3RW5527-1HA04 — Specifications
Parameter	Value
Trip Class	CLASS 10A / 10E (default) / 20E / 30E; acc. to IEC 60947-4-2
Number Of Controlled Phases	3
Utilization category according to IEC 60947-4-2	AC 53a
Product Feature Integrated Bypass Contact System	Yes
Start-Up Ramp Time Of Soft Starter	0 ... 360 s
Ramp-Down Time Of Soft Starter	0 ... 360 s

3RW5527-1HA04 — Electrical
Parameter	Value
Current Limiting Value [%] Adjustable	125 ... 800 %
Starting Voltage [%]	20 ... 100 %
Stopping Voltage [%]	50 %; non-adjustable

Product details

The Siemens 3RW5527-1HA04 is a SIRIUS 3RW55 soft starter rated for 200-480 V supply, covering common European and North American line voltages. Its trip class is selectable between CLASS 10A, 10E (default), 20E, and 30E per IEC 60947-4-2 — meaning you match the overload protection to the motor's starting characteristic: CLASS 10A for standard induction motors with moderate start times, CLASS 20E or 30E for high-inertia loads like centrifuges or crushers that need longer acceleration without nuisance tripping. ATEX and IECEx certification (both Yes) qualifies this unit for use in potentially explosive atmospheres when installed per the relevant codes.

The 3RW5527-1HA04 measures 185 mm wide, 306 mm high, and 203 mm deep, with screw terminals for power and control wiring. Clearance requirements: 100 mm upwards, 75 mm downwards, 10 mm forwards, 0 mm backwards, and 5 mm at the sides — plan the enclosure layout accordingly, especially the upward space for heat dissipation. Communication options include PROFIBUS, Modbus RTU, Modbus TCP, and EtherNet/IP, plus PROFINET with PROFIenergy support when paired with the appropriate communication module. This covers most fieldbus topologies found in process and manufacturing lines.

Approvals include CE, UL, and CSA, covering European and North American regulatory jurisdictions. The ATEX and IECEx marks add the hazardous-location acceptance that many process-industry buyers require.

Frequently asked questions

What is the ATEX certification on 3RW5527-1HA04?

ATEX certification is Yes, along with IECEx, meaning the soft starter is approved for use in potentially explosive atmospheres when installed per the relevant codes.

What trip classes does 3RW5527-1HA04 support?

It supports CLASS 10A, 10E (default), 20E, and 30E per IEC 60947-4-2, allowing you to match overload protection to the motor's starting characteristic.