Industrial Motor Control Solution – Mitsubishi S-N35 | S-N Series Magnetic Contactor
Where This Product Is Used
The Mitsubishi Electric S-N35 magnetic contactor is engineered for demanding industrial environments where reliable motor switching is critical. Typical deployment scenarios include:
- AC Motor Starters – Direct-on-line (DOL) and star-delta starter panels for pumps, fans, and compressors up to 18.5 kW (400 V)
- HVAC Systems – Chiller units, air handling units (AHU), and cooling tower fan control
- Water Treatment Plants – Submersible pump control, booster pump stations, and irrigation systems
- Manufacturing Lines – Conveyor drives, machine tool spindle control, and packaging equipment
- Building Automation – Elevator auxiliary circuits, lighting contactors, and BMS-integrated motor control centers (MCC)
- Oil & Gas Facilities – Wellhead pump panels and offshore platform auxiliary motor control
Technical Specifications
| Model / SKU | S-N35 |
| Brand | Mitsubishi Electric |
| Series | S-N Series (IEC Magnetic Contactors) |
| Rated Current (AC-3) | 35 A |
| Motor Rating (AC-3, 400 V) | 18.5 kW / 25 HP |
| Rated Voltage | Up to 690 V AC |
| Coil Voltage Options | 24 V AC/DC, 110 V AC, 220 V AC, 380 V AC (specify on order) |
| Auxiliary Contacts | 1NO + 1NC (standard); expandable with add-on blocks |
| Mechanical Endurance | 10,000,000 operations |
| Electrical Endurance (AC-3) | 1,500,000 operations |
| Mounting | 35 mm DIN rail or screw mounting |
| Enclosure Rating | IP20 (open type) |
| Weight | 1,210 g |
| Standards | IEC 60947-4-1, JIS C 8201-4-1 |
Why Engineers Specify This Model
- Proven S-N Series Platform – Mitsubishi’s S-N series has decades of field-proven reliability in global industrial installations, reducing engineering risk on new projects.
- Tool-Free Wiring – Spring-clamp terminal option eliminates loose connections caused by vibration, reducing maintenance callbacks.
- Modular Expansion – Add-on auxiliary contact blocks, surge suppressors, and mechanical interlocks snap on without rewiring, simplifying panel upgrades.
- Wide Coil Voltage Range – Single SKU supports multiple control voltages, reducing spare-parts inventory complexity.
- Low Power Consumption Coil – Economizer circuit reduces holding current, lowering heat dissipation inside control panels.
Complete System Bill of Materials
For a complete DOL motor starter using the S-N35, engineers typically specify:
- Mitsubishi S-N35 Magnetic Contactor (this item)
- Mitsubishi TH-N Series Thermal Overload Relay (e.g., TH-N20 or TH-N36 matched to motor FLA)
- Mitsubishi NF Series Molded Case Circuit Breaker (MCCB) for short-circuit protection
- Auxiliary Contact Block (e.g., S-N11 add-on) for remote indication or interlock
- Surge Suppressor (RC or varistor type) for coil transient suppression
- Mechanical Interlock Kit (for reversing starter configurations)
Compliance & Industry Standards
- IEC 60947-4-1 – Low-voltage switchgear and controlgear: AC electromechanical contactors and motor starters
- JIS C 8201-4-1 – Japanese Industrial Standard equivalent
- CE Marking – Compliant for European Economic Area installations
- RoHS Compliant – Restriction of Hazardous Substances Directive
- UL/CSA Listed variants available upon request for North American projects
Quality Assurance & Sourcing
Konmask.com sources Mitsubishi Electric S-N35 contactors through authorized industrial distribution channels. Each unit is:
- Inspected for physical integrity and label authenticity upon receipt
- Stored in ESD-safe, climate-controlled warehousing
- Shipped with original manufacturer packaging and documentation
- Traceable to batch records for warranty and compliance purposes
We do not supply grey-market, refurbished, or counterfeit components. All products carry the original Mitsubishi Electric manufacturer warranty.
How to Source This Part
To place an order or request a quotation for the Mitsubishi S-N35:
- Online: Add to cart directly on this page for in-stock units
- Email RFQ: [email protected] – include quantity, required coil voltage, and delivery location
- Phone / WhatsApp: +0086 19859288691 (Mon–Fri, 09:00–18:00 CST)
- Lead Time: In-stock orders ship within 1–3 business days; special coil voltage variants may require 5–10 business days
- MOQ: 1 piece; volume pricing available for orders of 10+ units
Application-Specific FAQ
Q: Can the S-N35 be used for star-delta starting?
A: Yes. Three S-N35 contactors are typically used in a star-delta configuration — one main, one star, and one delta — with a mechanical or electrical interlock to prevent simultaneous energization.
Q: What thermal overload relay pairs with the S-N35?
A: The Mitsubishi TH-N20 (12–20 A) or TH-N36 (22–36 A) directly mounts to the S-N35 without additional brackets, forming a compact motor starter assembly.
Q: Is the S-N35 suitable for capacitor switching (AC-6b)?
A: The standard S-N35 is rated AC-3. For capacitor bank switching, consult Mitsubishi’s derating tables or specify an AC-6b rated contactor to avoid contact welding.
Q: Can I add auxiliary contacts after installation?
A: Yes. Mitsubishi’s snap-on auxiliary contact blocks (e.g., S-N11) can be added to the side of the S-N35 without removing the contactor from the panel.
Q: What is the coil voltage for the unit in stock?
A: Please confirm your required coil voltage when ordering. Contact us at [email protected] to verify current stock coil voltage before purchase.
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