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3RT2526-1AP00
Siemens 3RT2526-1AP00 available at EU Automation. Get in touch today for a quick price.
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What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
The Siemens 3RT2526-1AP00 is a SIRIUS 3RT25 power contactor designed for reliable switching of power circuits in industrial control panels and automation systems. Built in size S0 format, this 4-pole contactor features a 2 NO + 2 NC main contact arrangement, making it suitable for applications requiring both normally open and normally closed switching paths within a compact device.
Rated for AC-3 operation at 25 A and 11 kW at 400 V, the 3RT2526-1AP00 also supports AC-1 switching up to 40 A at 40 °C, or 35 A at 60 °C. It is equipped with a 230 V AC, 50 Hz control coil and screw-type terminals for secure wiring of both the main and auxiliary/control circuits. An integrated auxiliary contact arrangement of 1 NO + 1 NC provides additional control and signalling capability within the same unit.
With a 690 V rated insulation voltage, 6 kV surge voltage resistance and IP20 front protection, this contactor is well suited to demanding industrial environments. It offers a typical mechanical service life of up to 10 million switching cycles and can be mounted by screw fixing or snapped onto a 35 mm standard DIN rail. Compact dimensions of 85 mm high, 61 mm wide and 97 mm deep make it practical for use where panel space is limited.
The 3RT2526-1AP00 is commonly used for motor control, load switching, heating circuits, distribution panels and machinery control systems where dependable electromechanical switching is required.
Rated for AC-3 operation at 25 A and 11 kW at 400 V, the 3RT2526-1AP00 also supports AC-1 switching up to 40 A at 40 °C, or 35 A at 60 °C. It is equipped with a 230 V AC, 50 Hz control coil and screw-type terminals for secure wiring of both the main and auxiliary/control circuits. An integrated auxiliary contact arrangement of 1 NO + 1 NC provides additional control and signalling capability within the same unit.
With a 690 V rated insulation voltage, 6 kV surge voltage resistance and IP20 front protection, this contactor is well suited to demanding industrial environments. It offers a typical mechanical service life of up to 10 million switching cycles and can be mounted by screw fixing or snapped onto a 35 mm standard DIN rail. Compact dimensions of 85 mm high, 61 mm wide and 97 mm deep make it practical for use where panel space is limited.
The 3RT2526-1AP00 is commonly used for motor control, load switching, heating circuits, distribution panels and machinery control systems where dependable electromechanical switching is required.
| Specification | Description |
|---|---|
| Manufacturer | Siemens |
| Part number | 3RT2526-1AP00 |
| Alternative part number | 3RT25261AP00 |
| Product range | SIRIUS |
| Product type | Power contactor |
| Series / type designation | 3RT25 |
| Contactor size | S0 |
| Main contact arrangement | 4-pole main circuit with 2 normally open and 2 normally closed contacts |
| Integrated auxiliary contacts | 1 normally open and 1 normally closed auxiliary contact |
| Rated AC-3 current | 25 A at 400 V per contact |
| Rated AC-3 power | 11 kW at 400 V per contact |
| Rated AC-1 current | 40 A up to 690 V at 40 °C; 35 A up to 690 V at 60 °C |
| Rated AC-1 power | 26 kW at 400 V |
| Control supply voltage | 230 V AC, 50 Hz |
| Coil operating range | 0.8 to 1.1 x rated control voltage at 50 Hz |
| Pick-up power | 77 VA |
| Holding power | 9.8 VA |
| Closing delay | 8 to 40 ms |
| Opening delay | 4 to 16 ms |
| Insulation voltage | 690 V for main and auxiliary circuits |
| Surge voltage resistance | 6 kV for main and auxiliary circuits |
| Mechanical service life | Typically 10,000,000 switching cycles |
| Auxiliary circuit rating | AC-12 up to 10 A; AC-15 up to 10 A at 230 V |
| UL auxiliary contact rating | A600 / Q600 |
| Single-phase motor rating | 2 hp at 110/120 V AC; 3 hp at 230 V AC |
| Short-circuit protection, main circuit | gG 63 A for coordination type 1; gG 35 A for coordination type 2 |
| Short-circuit protection, auxiliary circuit | gG 10 A fuse |
| Terminal type | Screw terminals for main, auxiliary and control circuits |
| Main conductor cross-section | Solid or stranded conductors up to 2 x 10 mm²; finely stranded with ferrules up to 1 x 10 mm² |
| Auxiliary conductor cross-section | Solid, stranded or finely stranded conductors up to 2 x 2.5 mm² |
| Mounting method | Screw fixing or snap-on mounting to 35 mm DIN rail to DIN EN 50022 |
| Mounting position | Vertical surface mounting with ±180° rotation and ±22.5° forward or backward tilt |
| Side-by-side mounting | Permitted with 0 mm spacing between contactors |
| Dimensions | 85 mm high x 61 mm wide x 97 mm deep |
| Front protection rating | IP20 |
| Terminal protection rating | IP20 |
| Touch protection | Finger-safe from the front when mounted vertically |
| Operating temperature | -25 °C to +60 °C |
| Storage temperature | -55 °C to +80 °C |
| Maximum installation altitude | 2,000 m above sea level |
| Typical application | Designed for switching AC loads such as motors, resistive loads and control circuits in industrial panels |
What type of electrical component is this?
It is a SIRIUS 3RT25 power contactor designed for switching electrical loads in industrial control panels. It is commonly used for motor control, load switching and automation applications where a compact 4-pole contactor is required.
How many poles does this contactor have?
This contactor has 4 main poles, arranged as 2 normally open contacts and 2 normally closed contacts.
What is the main contact configuration?
The main contact configuration is 2 NO + 2 NC. This means it includes two normally open main contacts and two normally closed main contacts for switching circuits.
What coil voltage does this contactor use?
The 3RT2526-1AP00 uses a 230 V AC control coil rated for 50 Hz operation.
What is the rated AC-3 current at 400 V?
The contactor is rated at 25 A per main contact for AC-2 and AC-3 duty at 400 V.
What motor power rating is this contactor suitable for at 400 V?
For AC-2 and AC-3 operation at 400 V, it is rated at 11 kW per normally open or normally closed main contact.
What is the AC-1 current rating?
For AC-1 applications up to 690 V, the rated current is 40 A at 40 °C ambient temperature and 35 A at 60 °C ambient temperature.
Does this contactor include auxiliary contacts?
Yes. It includes integrated auxiliary contacts with 1 normally open and 1 normally closed instantaneous auxiliary contact.
What terminal type is used?
This contactor uses screw-type terminals for the main circuit, auxiliary circuit and control circuit connections.
What size contactor is this?
It is a size S0 contactor, making it suitable for compact panel layouts where space efficiency is important.
What are the approximate dimensions?
The contactor measures approximately 85 mm high, 61 mm wide and 97 mm deep.
How can it be mounted?
It can be mounted using screws or snapped onto a 35 mm standard mounting rail in accordance with DIN EN 50022.
What operating temperature range is specified?
The specified operating temperature range is -25 °C to +60 °C, with a storage temperature range of -55 °C to +80 °C.
What insulation voltage is rated for the main and auxiliary circuits?
Both the main circuit and auxiliary circuit have a rated insulation voltage of 690 V with pollution degree 3.
What is the expected mechanical service life?
The contactor has a typical mechanical service life of 10,000,000 switching cycles under specified conditions.
What short-circuit protection values are specified?
For the main circuit, the specified gG fuse is 63 A for coordination type 1 and 35 A for coordination type 2. For the auxiliary switch, the specified gG fuse is 10 A.
- Switching AC motor loads in industrial control panels
- Controlling pumps, fans and compressors in automated systems
- Managing heating, ventilation and air conditioning equipment
- Switching resistive loads such as industrial heaters
- Power control for lighting banks and distribution circuits
- Reversing or interlocking control arrangements using 2 NO and 2 NC main contacts
- Integration into machinery control circuits requiring a 230 V AC coil
- Use in panel builds where compact S0 contactor sizing is required
- Auxiliary signalling and control feedback through the integrated 1 NO and 1 NC auxiliary contacts
- Replacement in Siemens SIRIUS 3RT25 contactor applications with matching ratings and configuration
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
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Customer reviews
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Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
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6 months ago
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