Siemens 3RA2327-8XB30-2AL2 Reversing Contactor Assembly, S0

Name: 3RA2327-8XB30-2AL2
Brand: Siemens
SKU: 3RA2327-8XB30-2AL2
Availability: LimitedAvailability
Author: Cost-Down Connie

Specifications

Identification

3RA2327-8XB30-2AL2 — Identification
Parameter	Value
Product designation	Reversing contactor assembly
Main circuit poles	3
Brand	SIRIUS
Reference designation (IEC 81346-2)	Q

Ratings & Performance

3RA2327-8XB30-2AL2 — Ratings & Performance
Parameter	Value
Rated motor power at 400 V	15 kW
Rated motor power at 460/480 V (hp)	20 hp
Rated motor power at 575/600 V (hp)	25 hp
Rated current at 480 V	27 A
Rated current at 600 V	27 A

Contacts & Control

3RA2327-8XB30-2AL2 — Contacts & Control
Parameter	Value
Rated voltage range at 50 Hz	230 V
Control supply voltage type	AC
Auxiliary switch extension	Yes

Communication

3RA2327-8XB30-2AL2 — Communication
Parameter	Value
AS-Interface protocol support	No

Mechanical & Connection

3RA2327-8XB30-2AL2 — Mechanical & Connection
Parameter	Value
Main contact conductor range (AWG)	1x (18 ... 8)
Mounting / fastening method	screw and snap-on mounting onto 35 mm standard mounting rail
Mounting position	+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface
Width	90 mm
Height	114 mm
Depth	97 mm

Environmental

3RA2327-8XB30-2AL2 — Environmental
Parameter	Value
Operating temperature range	-25 ... +60 °C
Storage temperature range	-55 ... +80 °C

Product details

Built-in reversing pair, S0 frame

The 3RA2327-8XB30-2AL2 is a Siemens SIRIUS reversing contactor assembly — two 3RT2027-2AL20 contactors mechanically and electrically interlocked in a single S0 frame package. It handles motor reversing without an external interlock or separate enclosure wiring.

Mounting and wiring flexibility

Clearance requirements: 6 mm upward, downward, and sideways, 0 mm backward — packs tightly against the backplane. Coil terminals are spring-type as well — no screw torque control needed on either circuit.

Shock and thermal envelope

Withstands 13.5 g / 5 ms and 8.3 g / 10 ms on AC; 15 g / 5 ms and 10 g / 10 ms on DC — relevant for panel-mounted installations near switchgear or on mobile equipment subject to vibration.

Frequently asked questions

What contactors are supplied inside this reversing assembly?

It ships with two 3RT2027-2AL20 contactors, mechanically interlocked for reversing duty. Each contactor is S0 frame size, so the assembly shares the same coil and main terminal specs as the individual units.

What wire sizes fit the main and coil terminals?

Coil terminals are also spring-type — no special ferrules or bootlace required for stranded wire within the range.