CONTACT DATA

CHARACTERISTICS

COIL DATA

COIL DATA

Notes: 1) All values unspecified are at room temperature.

2) Only typical loads are listed above. Other load specifications can be available upon request.

3) For the sealed type, the vent-hole cover should be excised.

Product Overview

① JRN Industrial Power Relay is developed for high-power load control with multiple contact combinations.

② Available in 2-pole and 3-pole contact versions: 3A/3B/3C, 2A/2B/2C configurations.

③ 2500VAC dielectric strength between coil and contacts ensures reliable electrical isolation.

④ 3C contact rated up to 40A, suitable for high-power motors, heaters and cabinet loads.

⑤ Optional contact materials: AgCdO / AgSnO₂ / AgNi for resistive and inductive loads.

⑥ Good vibration and humidity resistance, widely used in industrial equipment, power control cabinets, HVAC and construction machinery.

Product Features

① Diverse contact options: 3A/3B/3C, 2A/2B/2C to realize multi-channel synchronous control.

② 3C contact rated at 30A/40A (250VAC / 28VDC) with strong current carrying capacity.

③ Optional AgCdO, AgSnO₂, AgNi contacts with excellent arc and welding resistance.

④ Insulation resistance ≥500MΩ @500VDC with superior insulation performance.

⑤ Operate time ≤25ms, release time ≤15ms for stable response.

⑥ Vibration resistance: 10–55Hz, DA 1mm, adaptable to equipment vibration.

⑦ Operating temperature: -25℃ ~ +55℃; Humidity: 20％ ~ 85％RH.

⑧ Electrical life:1×10⁵ operations; Mechanical life:1×10⁷ operations for stable long-term operation.

Working Principle

① When rated voltage is applied to the coil, electromagnetic force drives the internal armature assembly.

② Contacts close to switch on high-power loads such as heaters and motors.

③ After coil power-off, spring tension resets contacts and disconnects the load circuit.

④ 2500VAC isolation separates control side and power loads to block high voltage interference.

⑤ Multiple contact material options suppress electric arcs under large current switching and reduce contact wear.

Contact Specifications

① Contact arrangement: 3A,3B,3C; 2A,2B,2C

② Contact resistance: ≤100mΩ (Test:1A, 6VDC)

③ Contact rating: 3C：30A/40A/250VAC；30A/40A/28VDC

④ Contact material: AgCdO/AgSnO₂/AgNi

Electrical Characteristics

① Insulation resistance ≥500MΩ @500VDC

② Dielectric strength between coil & contacts:2500VAC,1min

③ Dielectric strength between open contacts:1500VAC,1min

④ Operate time ≤25ms; Release time ≤15ms

⑤ Electrical life:1×10⁵ ops; Mechanical life:1×10⁷ ops

Environmental & Mechanical Performance

① Vibration resistance:10–55Hz, DA 1mm

② Shock resistance:10G (Half-sine shock pulse,11ms)

③ Operating humidity:20％ ~ 85％RH

④ Ambient temperature: -25℃ ~ +55℃

⑤ Multi-pole high-power contact structure, suitable for dense installation in control cabinets.

Application Fields

① Industrial control cabinets: control of heaters, fans, water pumps and other high-power loads

② Main circuit switching for HVAC and refrigeration units

③ Control units for construction machinery and generator sets

④ Load switching for power supply equipment and UPS

⑤ Control of high-power actuators for injection molding and packaging machinery

⑥ Auxiliary power circuit control for charging piles and energy storage equipment

Industry Solutions

① Multi-load centralized control: synchronous switching of 2/3 pole contacts to simplify wiring and reduce component count.

② Inductive high-power load solution: AgSnO₂ contacts optional for anti-welding and arc resistance.

③ Compact cabinet layout: integrated multi-channel contacts to save cabinet space.

④ Equipment retrofitting solution: standard footprint compatible with traditional high-power relays.

⑤ Intermittent continuous load solution: long mechanical life for periodic start-stop working conditions.

OEM / ODM Capability

① Support OEM manufacturing and ODM customized specifications.

② Custom coil voltage, housing LOGO printing and terminal structure.

③ Match AgCdO/AgSnO₂/AgNi contact materials according to load types.

④ Neutral packing, customized color boxes and anti-static tray solutions available.

⑤ Complete technical documents including English datasheets and factory test reports.

⑥ Support pre-project sample testing, technical communication and customized development.

Customization Process

① Inquiry confirmation: confirm coil voltage, contact arrangement, load type, temperature and order quantity.

② Technical design: complete solution including contact material, electrical parameters, marking and packaging.

③ Sample production and full reliability tests: hipot, temperature cycling and electrical life test.

④ Customer field testing and product optimization based on working condition feedback.

⑤ Lock drawings, process standards and acceptance specifications after sample approval.

⑥ Formal mass production with full quality control for on-time delivery.

Production Capacity

① Dedicated fully automatic assembly lines for JRN industrial power relays are built to support sustainable large-scale manufacturing.

② Automated assembly, crimping processing and on-line electrical testing are adopted in the whole process to minimize product quality deviation.

③ A stable upstream and downstream supply network is established. Key components are stocked routinely to shorten delivery lead time.

④ Two types of orders are available: spot orders for standard products and bulk customized orders.

⑤ Flexible dynamic adjustment of production schedule enables rapid arrangement for customers’ urgent orders.

⑥ Maintain balanced long-term output and provide steady supply for global clients in industrial control, HVAC and construction machinery industries.

Quality Control

① Incoming inspection: all components inspected before warehousing to reject defective materials.

② Online process inspection: QC checkpoints block defective semi-finished goods.

③ 100% finished goods test: contact resistance, dielectric strength, operate & release parameters.

④ Sampling reliability tests: temperature cycling, vibration and shock.

⑤ Periodic electrical life testing to verify contact durability.

⑥ Double re-inspection of appearance and electrical performance before shipment.

Testing Equipment

① Temperature cycling chamber simulates various ambient temperature conditions.

② Comprehensive relay tester for full electrical parameter measurement.

③ Hipot tester to verify 2500V dielectric strength between coil and contacts.

④ Electrical life tester for long-term switching load simulation.

⑤ Vibration & shock test bench to evaluate mechanical endurance.

⑥ All test equipment calibrated regularly for accurate and compliant test data.

Certifications & Qualifications

① Factory certified with ISO9001 quality management system.

② Traceable full production process and standardized quality management.

③ Factory test reports and safety documents available upon request.

④ Complete legal qualifications for production and import & export business.

⑤ Products comply with standards for industrial control, HVAC and construction machinery.

⑥ Assist overseas customers to prepare market access documents.

Production Process

① Raw material warehousing and strict incoming quality inspection.

② Coil winding, contact stamping and housing injection molding.

③ Automatic assembly of armature, spring and contact assemblies.

④ Online electrical testing of semi-finished products to remove defective units.

⑤ Product riveting, sealing and terminal assembly shaping.

⑥ Electrical retest and sampling reliability testing for finished goods.

⑦ Full visual inspection, classified packaging and warehousing.

Packaging & Delivery

① Standard packaging: anti-static trays + neutral export cartons with shock and pressure resistance.

② Optional customization: brand color boxes, individual packs and custom outer cartons.

③ Lead time for stock orders: 3–7 working days.

④ 7–15 days for customized samples; bulk order lead time negotiable.

⑤ Support express, land logistics, sea freight and air freight.

⑥ Reinforced export packaging reduces damage risk during long-distance transportation.

Export Capacity

① Products exported long-term to Southeast Asia, Europe, America, Middle East and other regions.

② Serve domestic and overseas customers in industrial control, HVAC, construction machinery and energy storage.

③ Supply complete English data sheets, test reports and technical documents.

④ Professional foreign trade team supports English technical communication and business negotiation.

⑤ Support sample trial orders, bulk purchasing and long-term strategic supply cooperation.

⑥ Familiar with international import regulations and assist customers with customs clearance documents.

FAQ

Q1: What information is required for quotation? 

A: Quick quotation will be offered once we receive coil voltage, contact configuration, load type, ambient temperature and order quantity.

Q2: How to select contact material and configuration? 

A: Choose 2A/2B/2C or 3A/3B/3C for multi-channel synchronous control. AgCdO for resistive loads; AgSnO₂ preferred for inductive high-power loads; AgNi for high wear-resistant applications.

Q3: What is the lead time? 

A: 3–7 working days for stock items; 7–15 days for customized samples; lead time of bulk orders will be confirmed separately.

Q4: What is the MOQ requirement? 

A: Low minimum order quantity for standard models; MOQ for customized products can be negotiated based on production process.

Q5: What customization services are available? 

A: Coil voltage, housing LOGO printing, terminal structure, contact material, inner and outer packaging can be customized.

Q6: Are samples available for testing? 

A: Samples can be provided for customer equipment testing; relevant factory test documents are available on request.