3RT2025-1AH20

Siemens 3RT2025-1AH20 AC contactor, 48V coil, 17A, 1NO1NC
Siemens 3RT2025-1AH20 AC contactor, 48V coil, 17A, 1NO1NC

The S0 frame contactor with a 48V safety extra-low voltage coil and 1NO+1NC auxiliary contacts is suitable for control circuits and special machine tool designs with high requirements for personnel safety.

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Siemens 3RT2025-1AH20 AC contactor, 48V coil, 17A, 1NO1NC
Product Positioning

The 3RT2025-1AH20 uses a 48V low-voltage coil, which falls under the category of extra-low voltage safety (SELV/PELV). It is commonly used in control circuits where the risk of electric shock is high, such as control circuits near machine tools or personnel operating interfaces that need to comply with specific safety standards. The main circuit specifications are the same as other models in the series, rated at 17A/7.5kW (400V) AC-3.

Core Product Advantages and Features
48V low-voltage coil improves operational safety
It falls under the category of extra-low voltage for safety and is suitable for control circuit designs with stringent requirements regarding personnel contact risk.
Main circuit specifications are not discounted
Although it is a low-voltage coil model, the 17A/7.5kW (400V) AC-3 rating is exactly the same as other voltage models in the series.
S0 compact frame
The 85×45×97mm shape is shared with other models in the same series, which facilitates unified planning of panel configuration diagrams.
Kenxin Motors is an authorized supplier; specifications are available.
We are an authorized Siemens distributor, providing direct supply. We can also assist in confirming inventory and delivery dates for special voltage models.
project Specification
Applicable Level SIRIUS 3RT2 series, frame size S0 (smallest model)
Extreme number 3 poles (3 main contacts)
Rated current AC-3 17A (400V/500V), 13A (690V)
Rated power AC-3 7.5kW (400V), 11kW (690V)
Coil voltage/frequency 48V AC, 50/60Hz
Auxiliary contacts 1 NO + 1 NC (Instantaneous Type)
Terminal type Screw terminals (main circuit 1–10mm², auxiliary circuit 0.5–2.5mm²)
Insulation voltage 690V AC (Pollution Level 3)
Protection level IP20 (front)
Mechanical life 10 million operation cycles
Electrical life Approximately 200,000 cycles (AC-4, under derating current conditions)
Operating ambient temperature -25°C to +60°C
External dimensions 85 mm (height) × 45 mm (width) × 97 mm (depth) (35 mm DIN rail mounting)
Major Certifications UL, CSA, CCC, EAC, CE, RCM certifications, and records of approval from classification societies and for rail transportation applications.

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