Siemens 3RA2316-8XB37-1CU0 SIRIUS Reversing Contactor

Name: 3RA2316-8XB37-1CU0
Brand: Siemens
SKU: 3RA2316-8XB37-1CU0
Availability: LimitedAvailability
Author: Cost-Down Connie

Specifications

Identification

3RA2316-8XB37-1CU0 — Identification
Parameter	Value
Product designation	Reversing contactor assembly
Main circuit poles	3
Brand	SIRIUS
Reference designation (IEC 81346-2)	Q

Ratings & Performance

3RA2316-8XB37-1CU0 — Ratings & Performance
Parameter	Value
Rated motor power at 400 V	4 kW
Rated voltage at AC-3, max.	690 V
Rated motor power at 460/480 V (hp)	5 hp
Rated motor power at 575/600 V (hp)	7.5 hp
Rated current at 480 V	7.6 A
Rated current at 600 V	9 A

Contacts & Control

3RA2316-8XB37-1CU0 — Contacts & Control
Parameter	Value
Rated voltage range at 50 Hz	240 V
Control supply voltage type	AC
Auxiliary switch extension	Yes

Communication

3RA2316-8XB37-1CU0 — Communication
Parameter	Value
AS-Interface protocol support	No

Mechanical & Connection

3RA2316-8XB37-1CU0 — Mechanical & Connection
Parameter	Value
Mounting / fastening method	screw and snap-on mounting onto 35 mm DIN 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	68 mm
Depth	130 mm

Environmental

3RA2316-8XB37-1CU0 — Environmental
Parameter	Value
Operating temperature range	-25 ... +60 °C
Storage temperature range	-55 ... +80 °C

Product details

The 3RA2316-8XB37-1CU0 is a SIRIUS reversing contactor assembly in frame size S00, meaning it packs two contactors and a mechanical interlock into a 90 mm wide footprint for reversing motor control in a compact panel. The 6 auxiliary contacts provide enough feedback and interlock capacity for most reversing applications without adding a separate auxiliary contact block.

Mounting and wiring — DIN rail or screw, screw terminals throughout

No special tooling needed for field wiring. Mechanical life is rated 10,000,000 operating cycles typical — a benchmark that aligns with SIRIUS contactors in conveyor and pump reversing duty where the reversing frequency stays under 750 operations per hour.

Current production, quoted to order

Lifecycle stage is current production — this reversing contactor assembly is an active catalog item, not a legacy or phased-out part.

Frequently asked questions

What is the 3RA2316-8XB37-1CU0 rated for at 480 V?

At 480 V rated value the assembly carries 7.6 A and 5 hp. This covers the 460/480 V band common in US industrial installations.

Does the 3RA2316-8XB37-1CU0 have screw terminals or spring terminals?

Both the main current circuit and the magnet coil use screw-type terminals.

What is the mechanical life of the 3RA2316-8XB37-1CU0?

The mechanical life of the contactor typical is 10,000,000 operating cycles. Maximum switching frequency at AC-3 is 750 operations per hour.