3RT1054-3AF36 - Siemens
power contactor, AC-3e/AC-3 115 A, 55 kW / 400 V, AC (50-60 Hz) / DC Uc: 110-127 V 3-pole, auxiliary contacts 2 NO + 2 NC drive: conventional main circuit: box terminal control and auxiliary circuit: spring-loaded terminal
Specifications
Identification
| Parameter | Value |
|---|---|
| Contactor frame size | S6 |
Ratings & Performance
| Parameter | Value |
|---|---|
| Rated operational current, AC-12, max. | 10 A |
| Rated operational current, AC-4 @ 400 V | 97 A |
| Rated value @ 400 V | 3 A |
| Rated value @ 500 V | 2 A |
| Rated value @ 690 V | 1 A |
| Rated value @ 230 V | 25 hp |
| Rated value @ 24 V | 10 A |
| Rated value @ 60 V | 2 A |
| Rated value @ 110 V | 1 A |
| Rated value @ 220 V | 0.3 A |
Control & Coil
| Parameter | Value |
|---|---|
| Control supply voltage type | AC/DC |
| Rated value @ 50 Hz | 0.8 |
| Rated value @ 50 Hz | 110 ... 127 V |
Contacts & Poles
| Parameter | Value |
|---|---|
| Main poles | 3 |
| Main NO contacts | 3 |
| Auxiliary contact reliability | 1 faulty switching per 100 million (17 V, 1 mA) |
Protection & Coordination
| Parameter | Value |
|---|---|
| Short-circuit coordination type 1, fuse | gG: 355 A (690 V, 100 kA) |
| Short-circuit coordination type 2, fuse | gG: 250 A (690 V, 100 kA), aM: 200 A (690 V, 50 kA), BS88: 250 A (415 V, 50 kA) |
| Aux. switch short-circuit protection, fuse | gG: 10 A (500 V, 1 kA) |
Connection & Mounting
| Parameter | Value |
|---|---|
| Main circuit connection | box terminal |
| Aux. / control circuit connection | spring-loaded terminals |
| Conductor cross-section, solid | 2x (0.25 ... 2.5 mm²) |
| Conductor cross-section, solid or stranded | 2x (0,25 ... 2,5 mm²) |
| Conductor cross-section, finely stranded w/ ferrule | 2x (0.25 ... 1.5 mm²) |
| Mounting method | screw fixing |
| Side-by-side mounting | Yes |
Durability
| Parameter | Value |
|---|---|
| Durability (operating cycles, typ.) | 10 000 000 |
| Durability with aux. switch block (cycles, typ.) | 10 000 000 |
Environmental
| Parameter | Value |
|---|---|
| Operating temperature range | -25 ... +60 °C |
| Storage temperature range | -55 ... +80 °C |
| Installation altitude, max. | 2 000 m |
Mechanical
| Parameter | Value |
|---|---|
| Width | 120 mm |
| Height | 172 mm |
| Depth | 170 mm |
Specifications
| Parameter | Value |
|---|---|
| At AC | 40 ... 60 ms |
Frequently asked questions
What is the coil voltage of the Siemens 3RT1054-3AF36 contactor?
Specifying the correct 110-127 V AC/DC Uc drive is the single most cited selection error buyers make across the 3RT1 frame.
Is the 3RT1054-3AF36 still active, and what is its official Siemens successor?
Obsolete managers and MRO buyers need the qualified FFF alternate and last-time-buy window before allocation hits production.
Where can the 3RT1054-3AF36 be bought from an authorized Siemens distributor with current stock?
Authorization and traceability directly address counterfeit risk on allocated 110-127 V coil contactors.
What is the cross-reference / pin-compatible replacement for the 3RT1054-3AF36?
Maintenance techs and design engineers need a drop-in alternate that preserves footprint, aux block, and 55 kW @ 400 V rating.
What wire gauge, terminal type, and torque apply to the 3RT1054-3AF36 box and spring-loaded terminals?
Panel builders must match the mixed box (main) and spring-loaded (control/aux) terminals to DIN rail wiring practice without rework.
Can the 3RT1054-3AF36 be used in a VFD bypass or motor disconnect application, and what accessories are required?
Commissioning engineers need a validated bypass topology plus EMC/choke part numbers instead of scattered Sirius accessory lists.