Solenoid Repair Kit Solenoid Repair Kit
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Solenoid Repair Kit Solenoid Repair Kit
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Solenoid Repair Kit
Solenoid Repair Kit
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Solenoid Repair Kit
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Solenoid Repair Kit

Brand Name:NewTrend or OEM
Place of Origin:China
Model Number:SW400R-100
SKU: 1769746680007106560 Category: DC Contactors
  • Description
  • Technical Datasheet & Downloads
  • Technical FAQ & Selection Guide
Description

Albright replacement SW400 SW400R-100 ZJW400 SW200 SW180 SW80 DC Contactor Solenoid contact kits Service Repair Kits

 

Application:
 

The SW400R-100 has been designed for Direct Current loads, including motors as used on electric vehicles such as industrial trucks.  Developed for both interrupted and uninterrupted loads, the SW400 is suitable for switching Resistive, Capacitive and Inductive loads.

 

The SW400R-100 features Single pole Single throw, Double breaking main contacts with silver alloy tips, which are weld resistant, hard wearing and have excellent conductivity.  The SW400 has M10 stud main terminals and 6.3mm spade coil connections.  It can be mounted via M5 tapped holes or mounting brackets – either supplied fitted, or as separate items.  Mounting can be horizontal or vertical, when vertical the M10 contact studs should point upwards. If the requirement is for downwards orientation we can adjust the contactor to compensate for this.

 

Specification:
 

 

Model SW400R-100
Rated Current 400A
Contact Form 1NO, SPST
Contact Voltage 6-80V DC
Coil Voltage 12V DC
Coil Power 11-15W
Dielectric Voltage Strength 50Hz 1000V AC 1min
Volt Drop of Main Contact <80mV
Typical Pull-In Time <30ms
Typical Drop-Out Time
(N/O Contacts to Open)
<30ms
Pull-In Voltage (Coil at 20℃)  <66%Us
Drop-Out Voltage (Coil at 20℃)  5% – 30%
Mechanical life 100 thousand times
Electric life 20 thousand times
Circuit Diagram
Diagram & Dimension:
 

 

 
Technical Datasheet & Downloads

📄 Technical Documentation & Product Specifications

Download official engineering datasheets, certified test standards (IEC / UL / CE), wiring diagrams, and dimensional drawings for Solenoid Repair Kit.

📥
Official Technical Datasheet (PDF) Complete electrical ratings, tripping characteristics, dimensions, and compliance specifications.
Request Official Datasheet (PDF)
📐
2D/3D CAD & Dimensional Drawings STEP, DXF, and PDF CAD drawing files for panel builders and switchgear designers.
Request CAD Model
Certified Standards: IEC 60898-1, IEC 60947-2, CE, RoHS, ISO 9001:2015
Manufacturer: Shanghai Newtrend Electric Co., Ltd. (Global Export Compliance)
Engineering Support: 24-hour response for custom voltage ratings, auxiliary contacts, and technical consulting.
Technical FAQ & Selection Guide

💡 Frequently Asked Technical Questions & Selection Guide

Pure engineering specifications, tripping curve parameters, and electrical selection guidance for panel builders and system designers.

Voltage & Load Sizing

How to verify rated operational voltage, frequency, and load duty cycle?

A

Verify that the nominal line voltage (AC 230V single-phase or 400V/415V/690V three-phase at 50/60Hz, or DC voltage ratings) falls within the continuous maximum operating limits of the device. Check duty cycle ratings (continuous vs intermittent duty) to ensure thermal stability under full load.

Protection & Environment

What ingress protection (IP Rating) and environmental enclosures are recommended?

A

For clean indoor electrical rooms, standard IP20 modular DIN-rail housings are recommended. For outdoor, industrial washdown, or dusty environments, mount components inside weatherproof enclosures rated IP65/IP66 with UV-resistant polycarbonate or powder-coated steel enclosures equipped with compression cable glands.

Selectivity & Grading

How to ensure upstream and downstream coordination in power distribution boards?

A

Ensure proper discrimination by grading current thresholds and tripping time delays: upstream devices should have higher current ratings and intentional short-time delays (Class S), allowing downstream branch MCBs to clear localized faults without blacking out the entire facility.

Installation & Mounting

What mounting rails, busbars, and spatial clearances are required?

A

Components mount on standard symmetrical 35mm DIN rail (EN 60715 / TH35-7.5) or backplate screw fixings. Maintain recommended top/bottom ventilation gaps (typically 30–50mm) to ensure unrestricted air convection, and use standard pin/fork comb busbars to minimize contact resistance and wiring errors.

Conductor & Torque Sizing

What conductor sizes and terminal tightening torques should be applied?

A

Select copper or aluminum conductor cross-sections complying with IEC 60364-5-52 current-carrying capacity tables based on continuous load. Always use a calibrated torque screwdriver or torque wrench to tighten terminal screws to the manufacturer-specified torque to prevent hot-spot degradation and loose connections.

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