The Siemens 3RT2025-1AF00 is a SIRIUS 3RT power contactor designed for switching and controlling three-phase motors and industrial electrical loads. It has an AC-3e/AC-3 rating of 17A and is suitable for motors up to 7.5 kW at 400V. The contactor features a 110V AC control voltage at 50 Hz, 3 main poles, 1 NO + 1 NC auxiliary contacts, screw terminals, and a compact S0 size. Siemens lists this exact model as an active product (PM300).
The 3RT2025-1AF00 is suitable for DOL motor starters, MCC panels, pump and compressor systems, conveyor systems, HVAC equipment, industrial machinery, OEM control panels, and automation applications requiring a 110V AC control circuit.
Brand: Siemens
Product family: SIRIUS 3RT
Model: 3RT2025-1AF00
Utilization category: AC-3e/AC-3
Rated operational current: 17A at 400V
Motor rating: 7.5 kW at 400V
Main contacts: 3-pole
Control voltage: 110V AC
Control frequency: 50 Hz
Auxiliary contacts: 1 NO + 1 NC
Main circuit connection: Screw terminal
Contactor size: S0
Rated insulation voltage: 690V
Surge withstand voltage: 6kV
Front protection: IP20
Net weight: approximately 0.410 kg
Product lifecycle: PM300 – Active Product
Three-phase motor control
DOL motor starters
Motor Control Centers (MCC)
Industrial automation panels
Pump control systems
Compressor systems
Conveyor systems
HVAC equipment
Manufacturing machinery
OEM control panels
Machine automation
Factory electrical systems
Reliable 17A AC-3e/AC-3 motor switching
Suitable for motors up to 7.5kW at 400V
110V AC, 50Hz control supply
1 NO + 1 NC auxiliary contacts for control and signaling
Secure screw-terminal connections
Compact S0 construction
High 690V insulation voltage
6kV surge withstand capability
Suitable for DOL motor starter assemblies
Reliable Siemens SIRIUS technology
Easy integration into industrial control panels
The 3RT2025-1AF00 is a Siemens SIRIUS power contactor used for switching and controlling three-phase motors and industrial electrical loads. It is rated at 17A AC-3e/AC-3 and supports motors up to 7.5kW at 400V.
The contactor has a rated operational current of 17A at 400V in AC-3 applications.
It is suitable for motors up to 7.5kW at 400V.
The contactor uses a 110V AC control voltage at 50Hz. The Siemens datasheet specifies a control-voltage operating range of 0.8 to 1.1 × rated voltage at 50Hz.
The 3RT2025-1AF00 has 1 NO + 1 NC auxiliary contacts, suitable for control, feedback, signaling, and interlocking circuits.
It uses screw-terminal connections for the main circuit.
The contactor is Size S0.
The rated insulation voltage is 690V, with a 6kV surge withstand voltage.
Yes. It can be used as the main contactor in a DOL motor starter when paired with an appropriately rated motor-protection device.
Yes. Siemens Industry Mall identifies 3RT2025-1AF00 as PM300: Active Product.
| Parameter | Specification |
|---|---|
| Product Series | Siemens SIRIUS 3RT2 |
| Model Number | 3RT2025-1AF00 |
| Product Type | Power Contactor |
| Contactor Configuration | 3 Pole |
| Rated Current (AC-3) | 17 A |
| Motor Rating | 7.5 kW @ 400 V AC |
| Coil Type | 110 V AC |
| Auxiliary Contact | 1 NO + 1 NC (variant dependent) |
| Contact Feedback | Mirror Contact Elements |
| Terminal Type | Screw Terminals |
| Frame Size | S0 |
| Application | Motor Control & Power Switching |
| Brand | Siemens |
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