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Eaton S81+N37P3S Switchgear Series
Eaton S81+N37P3S
Eaton S81 is a low-voltage power distribution switchgear series under Eaton, specifically designed to meet the power distribution needs of industrial facilities, commercial buildings, and large-scale constructions. N37P3S is a common modular power distribution unit model within this series, widely used to implement high-density and flexible power distribution solutions.
Key Technical Specifications
- Rated Voltage: 400 V (AC)
- Rated Current: 63 A ~ 1250 A
- Rated Short-Circuit Current: ≥ 25 kA
- Pole Configuration: 3P + N
- Dimensions: Standard 800 mm × 800 mm × 2000 mm
- Protection Class: IP20 (Indoor) / IP54 (Dust and Water Protection)
- Operating Temperature Range: -25 °C ~ +55 °C
- Connection Methods: Bolted terminals, spring-loaded quick connections, busbar connections
Product Features
Modular Design
N37P3S adopts standardized modules, allowing flexible combination of functional units such as circuit breakers, contactors, and relays within a single cabinet to achieve “one cabinet for multiple uses.”
High Reliability
It uses high-performance insulating materials and high-temperature resistant metal structures independently developed by Eaton, featuring strong short-circuit withstand capacity and compliance with IEC 60947-2 standards.
Easy Maintenance
Both front and rear doors can be quickly opened, and internal components are arranged in a visual layout, significantly reducing inspection and replacement time.
Intelligence
It supports Eaton’s Power X-pert monitoring platform, enabling remote status monitoring, fault alarms, and energy consumption analysis.
Compact Footprint
Compared with traditional power distribution cabinets, it has a volume reduction of approximately 30% under the same rated current, making it suitable for equipment rooms or distribution rooms with limited space.
Structure and Composition
- Cabinet Body: Steel frame equipped with protective doors and grounding trunking.
- Busbar System: Copper or aluminum busbars connected by crimping or bolting to ensure low impedance.
- Modular Units: Including circuit breaker modules, contactor modules, thermal relay modules, leakage protection modules, etc., which can be freely plugged and unplugged according to power distribution needs.
- Wiring Terminals: Bolted or spring-loaded terminals compatible with various wire gauges.
- Auxiliary Accessories: Nameplates, grounding bars, overvoltage protection devices, temperature sensors, etc.
Typical Application Fields
- Industrial Power Distribution: Main power distribution and distribution for production lines, automated workshops, and machine tool centers.
- Commercial Buildings: Power distribution cabinets and floor distribution boxes for office buildings, shopping malls, and hotels.
- Data Centers: High-density power distribution and front-end power distribution for UPS power supply systems.
- Energy Facilities: Grid-connected power distribution for photovoltaic inverter stations and wind farms.
- Transportation Facilities: Power distribution systems for subway stations, airports, and ports.
Installation Guidelines
- On-Site Survey: Confirm the equipment room space, ventilation, and grounding conditions to ensure the cabinet installation location complies with IEC 61439-1/2 standards.
- Foundation Fixing: The cabinet must be bolted to pre-embedded steel structures or concrete foundations to prevent vibration.
- Grounding and Lightning Protection: All metal components must be reliably grounded, and lightning surge protection devices should be installed if necessary.
- Busbar Connection: Complete the overall laying of busbars first, then insert modular units one by one to ensure firm and non-loose connections.
- Wiring and Labeling: Distribute phase wires, neutral wires, and protective wires according to electrical drawings, using unified color and number identification.
- Commissioning and Acceptance: Conduct insulation resistance and grounding resistance tests before power-on; after power-on, check whether the operating characteristics and protection functions of each module are normal.
Daily Maintenance Recommendations
- Regular Inspection: Check bolt tightness, terminal corrosion, and busbar temperature rise every 6 months.
- Cleaning and Dust Prevention: Keep the interior of the cabinet free of dust and oil stains to prevent insulation aging.
- Functional Testing: Perform functional tests on circuit breakers, leakage protection, and overvoltage protection once a year.
- Firmware Update: If using Power X-pert monitoring, update the communication firmware in a timely manner to ensure the reliability of remote monitoring.
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- Sales Manager : Jinny
- Email : sales5@xrjdcs.com
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We focus exclusively on the R&D, supply, and support of control systems and drives—whether you need to maintain and optimize your current control infrastructure or upgrade to cutting-edge control technologies to boost operational efficiency. Our in-house testing facilities cover a wide range of performance and reliability checks, ensuring every product meets strict quality standards, and all purchases are backed by a 12-month warranty for your peace of mind.
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Should you come across identical parts from other suppliers at a lower cost, simply share the details with us—we’ll work to match that price or offer you an extra discount to ensure you get the best value. Additionally, if you’re inquiring about multiple items, let us know upfront; we can customize a special discount package based on your order volume. We’re eager to hear from you and address your needs!
Frequently Asked Questions (FAQs)
Q: What kind of warranty do your products have?
A: Every product we supply comes with a standard 1-year warranty, covering manufacturing defects and performance issues under normal use.
Q: How long does it usually take for deliveries to arrive?
A: Our typical delivery timeframe is 1 to 2 weeks from the date of order confirmation, depending on your location and shipping method.
A: Our typical delivery timeframe is 1 to 2 weeks from the date of order confirmation, depending on your location and shipping method.
Q: What if another supplier offers a better price for the same parts?
A: “Delivering maximum benefits to our customers is at the heart of what we do. If you have a competitive price quote from another supplier, please provide it to us—we’ll make every effort to meet that price or provide an even more favorable offer to support your projects.”
A: “Delivering maximum benefits to our customers is at the heart of what we do. If you have a competitive price quote from another supplier, please provide it to us—we’ll make every effort to meet that price or provide an even more favorable offer to support your projects.”
Q: What shipping methods do you provide, and are there any cost advantages?
A: We partner with leading courier services including DHL, FedEx, UPS, TNT, and EMS, allowing us to offer preferential shipping rates. Alternatively, you’re welcome to use your own designated freight forwarder if that better suits your logistics needs.
A: We partner with leading courier services including DHL, FedEx, UPS, TNT, and EMS, allowing us to offer preferential shipping rates. Alternatively, you’re welcome to use your own designated freight forwarder if that better suits your logistics needs.
Q: Which payment methods are accepted for orders?
A: Our primary payment method is T/T (Telegraphic Transfer). We also accept Alipay and Western Union for added flexibility, depending on your location and transaction preferences.
A: Our primary payment method is T/T (Telegraphic Transfer). We also accept Alipay and Western Union for added flexibility, depending on your location and transaction preferences.
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