Siemens 3RU2116-0EC0 SIRIUS Overload Relay, Class 10, S00

Name: 3RU2116-0EC0
Brand: Siemens
SKU: 3RU2116-0EC0
Availability: LimitedAvailability
Author: Huaqiang Hank

Specifications

Identification

3RU2116-0EC0 — Identification
Parameter	Value
Product brand name	SIRIUS
Product designation	thermal overload relay
Frame size (overload relay)	S00
Combinable contactor sizes	S00
Reference code (IEC 81346-2)	F

Protection & Trip

3RU2116-0EC0 — Protection & Trip
Parameter	Value
Overload current setting range	0.28 ... 0.4 A
Trip class	CLASS 10
Overload release type	thermal

Electrical (main circuit)

3RU2116-0EC0 — Electrical (main circuit)
Parameter	Value
Rated operational current	0.4 A
Poles (main circuit)	3
Rated operating frequency	50 ... 60 Hz
Rated insulation voltage (AC, pollution degree 3)	690 V
Rated value (AC-3e), max.	690 V
Rated surge withstand voltage	6 kV
Main current circuit	spring-loaded terminals
Power loss at rated current (hot)	4.8 W
Per pole	1.6 W

Auxiliary contacts

3RU2116-0EC0 — Auxiliary contacts
Parameter	Value
Auxiliary contacts: NO	1
Auxiliary contacts: NC	1
Auxiliary contacts: CO (changeover)	0
Auxiliary switch short-circuit protection (required fuse)	fuse gG: 6 A, quick: 10 A
Switching current at 24 V	2 A
Switching current at 60 V	0.3 A
Switching current at 110 V	0.22 A
Switching current at 120 V	3 A
Switching current at 125 V	0.22 A
Switching current at 220 V	0.11 A
Switching current at 230 V	2 A
Switching current at 400 V	1 A

Connection & Mounting

3RU2116-0EC0 — Connection & Mounting
Parameter	Value
Mounting / fastening method	Contactor mounting
Mounting position	any
Main-circuit connector arrangement	Top and bottom
Auxiliary/control circuit connection type	spring-loaded terminals
Removable aux./control terminal	No
Conductor cross-section: solid or stranded	2x (0.5 ... 2.5 mm²)
Conductor cross-section: finely stranded with ferrule	2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Conductor range (AWG), main contacts	1x (20 ... 12)
Conductor range (AWG), auxiliary contacts	2x (20 ... 14)

Environmental

3RU2116-0EC0 — Environmental
Parameter	Value
Operating temperature	-40 ... +70 °C
Storage temperature	-55 ... +80 °C
Transport temperature	-55 ... +80 °C
Relative humidity, operating	10 ... 95 %
Max. installation altitude	2 000 m

Mechanical

3RU2116-0EC0 — Mechanical
Parameter	Value
Width	45 mm
Height	87 mm
Depth	70 mm

Product details

The 3RU2116-0EC0: Mounts directly onto the contactor via the fastening method — no separate DIN-rail bracket needed.

Auxiliary contact ratings across control voltages

At 60 V it carries 0.3 A, and at 110/125 V it's 0.22 A. These values define the pilot duty capacity for the PLC input or contactor coil it signals.

Environmental and compliance envelope

Storage and transport limits are -55 to +80 °C. The MTTF under high demand rate is 2,280 years, relevant for safety circuit assessments. RoHS compliance date is October 1, 2009.

Listed as current production — this is an active SIRIUS catalog item.

Frequently asked questions

What does the note 'for message Tripped' mean on the 3RU2116-0EC0?

The note indicates the auxiliary contact position labeled 'Tripped' — it's the normally-open contact that closes when the relay has tripped on overload, providing a signal back to the PLC or indicator. It's not a separate function; it's the standard alarm contact on this relay.

What compliance documentation is available for the 3RU2116-0EC0?

RoHS compliance is dated October 1, 2009. The relay carries a 690 V rated insulation voltage and is designed for 50/60 Hz operation. Standard Siemens SIRIUS documentation (datasheet, CE declaration, UL file) applies — verify specific UL/CSA listing against the latest manufacturer documentation at order time.