High Power Relay NT90HCS24CB 24V

Product Overview

The NT90/T90 series high voltage and high power relays (including models NT90RASAC110CB 0.9W, NT90NCSDC48VCB 0.6W, NT90RNCDAC220CB 1.1W, and NT90HCS24CB) are engineered for demanding switching applications in industrial automation, power distribution, renewable energy, and HVAC systems. These relays offer a wide range of coil voltages (24V DC, 48V DC, 110V AC, 220V AC) with power consumption from 0.6W to 1.1W, and feature high contact ratings (up to 30A at 250V AC / 28V DC). As part of YM's extensive relay portfolio—which includes Industrial Power Relay, PCB Board Relay, Automotive Relay, Military Metal Relay, and Solid State Relay—the NT90/T90 series delivers reliable performance, fast switching, and excellent isolation for mission-critical circuits.

Technical Specifications

The NT90/T90 series relays are available in multiple coil voltage/power variants. Key parameters include:

• Available Models & Coil Data:
  • NT90RASAC110CB: 110V AC coil, 0.9W, SPST-NO (1 Form A)
  • NT90NCSDC48VCB: 48V DC coil, 0.6W, SPST-NO
  • NT90RNCDAC220CB: 220V AC coil, 1.1W, SPST-NO
  • NT90HCS24CB: 24V DC coil, high power version
  • T90 series: General purpose PCB relays with similar footprints
• Contact Configuration: SPST-NO (1 Form A) or SPDT (1 Form C) optional
• Contact Load (Resistive): 30A at 250V AC / 28V DC (high current version); also supports low-level signals (10-50μA at 10-50mV) for 100,000 cycles
• Contact Resistance: Initial ≤50mΩ; after life test ≤200mΩ
• Operate Time: ≤15ms (typical ≤10ms)
• Release Time: ≤10ms
• Dielectric Strength (Coil to Contacts): 4,000V RMS (isolation for high voltage applications)
• Insulation Resistance: >500 MΩ (500V DC)
• Mechanical Life: 10 million operations minimum
• Electrical Life: 100,000 operations at rated load
• Operating Temperature: -40°C to +85°C
• Weight: Approx. 25–35 grams (depending on model)
• Sealing: Flux-tight standard; hermetic sealing optional (leakage ≤10⁻³ Pa·cm³/s)

All specifications validated at 25°C. Custom coil voltages and contact arrangements available upon request.

Product Features & Competitive Advantages

1. Wide AC/DC Coil Range: Supports 24V DC, 48V DC, 110V AC, 220V AC coils with power consumption as low as 0.6W, enabling direct control from PLCs, timers, and microcontrollers.
2. High Contact Rating (30A): Capable of switching heavy loads such as motors, heaters, compressors, and lighting circuits – ideal for industrial machinery and HVAC systems.
3. High Dielectric Strength: 4,000V RMS isolation between coil and contacts ensures safe operation in high-voltage environments (e.g., power supplies, inverters).
4. Compact PCB Mount Design: Standard footprint allows easy integration with PCB Board Relay layouts, saving board space and simplifying assembly.
5. Long Electrical & Mechanical Life: 100,000 electrical cycles and 10 million mechanical cycles reduce maintenance frequency and total cost of ownership.
6. Optional Hermetic Sealing: Leakage rate ≤10⁻³ Pa·cm³/s provides protection against dust, moisture, and corrosive atmospheres, suitable for outdoor and industrial control panels.

Installation & Wiring Steps

1. Model Selection: Verify required coil voltage (AC/DC) and contact configuration (SPST-NO or SPDT) against your system specifications.
2. PCB Mounting: Insert relay into pre-drilled PCB holes according to the pinout diagram. Ensure correct orientation (usually marked by polarity notch). Solder at ≤350°C for ≤3 seconds per pin.
3. Coil Connection: Connect the coil terminals to the appropriate control signal (e.g., 24V DC for NT90HCS24CB, 110V AC for NT90RASAC110CB). Observe no polarity requirement for AC coils.
4. Load Wiring: Connect the power source to the common terminal (if SPDT) or input terminal (SPST-NO). Connect the load to the normally open (NO) terminal. Use appropriate wire gauge for 30A current.
5. Functional Test: Apply coil voltage – verify continuity (low resistance) between input and NO terminals. Remove voltage – verify open circuit (infinite resistance).
6. Integration with Sensors: For automated protection, pair the relay with Aviation Temperature Sensor, Hydraulic Circuit Breaker, or Military Pressure Sensor for temperature/pressure-based cut-off.

Application Scenarios

The NT90/T90 series relays are deployed in applications requiring high current switching with AC or DC coil control:

• Industrial Automation: Motor contactors, conveyor control, solenoid valve drivers (compatible with Aviation Cold Air Solenoid Valve), and heating element switching.
• Power Distribution & UPS: Battery bank switching, inverter bypass relays, and emergency power transfer.
• Renewable Energy: Solar charge controller load disconnect, wind turbine brake control, and energy storage system switching.
• HVAC & Refrigeration: Compressor start/stop relays, fan speed control, and defrost heater switching.
• Automotive & Heavy Equipment: Aftermarket high-power lighting, winch control, and auxiliary battery isolators.
• Test & Measurement Equipment: Load switching for power supplies, electronic loads, and automated test systems.

Value Proposition for B2B Buyers

• Enhanced System Reliability: 100,000-cycle electrical life and robust contact materials reduce field failures and warranty claims.
• Versatile Coil Options: One relay series covers multiple control voltages (24V DC to 220V AC), simplifying inventory management and design reuse.
• Energy-Efficient Coil: Low coil power (0.6–1.1W) reduces heat generation and allows direct logic drive without external amplification.
• Global Compliance: Manufactured under ISO 9001:2015, with UL, TUV, CE certifications available upon request, facilitating export and end-product certification.
• Cost-Effective Customization: YM offers custom coil resistances, contact materials (AgSnO₂, AgCdO), and sealing levels for OEM projects.

Certifications & Compliance

The NT90/T90 series relays are designed and manufactured to meet international standards for industrial control and power relays. Our facility operates under ISO 9001:2015 quality management. Key compliance includes:

• IEC 61810-1 – Electromechanical elementary relays
• UL 508 – Industrial control equipment (selected models)
• TUV EN 61810-1 – Safety standard (available on request)
• RoHS 2011/65/EU – Restriction of hazardous substances
• REACH (EC 1907/2006) – Chemical compliance

Each relay is 100% tested for coil resistance, pickup/dropout voltage, contact resistance, dielectric strength, and insulation resistance. Traceability codes are laser-marked on the housing.

Customization Options

YM provides extensive OEM/ODM customization for the NT90/T90 series to meet specific application requirements:

• Coil Voltage: Custom AC or DC voltages (e.g., 12V DC, 48V DC, 240V AC).
• Contact Material: Silver-tin oxide (standard for high current), silver-cadmium oxide (for inductive loads), or gold-plated (for low-level signals).
• Contact Configuration: SPST-NO, SPST-NC, or SPDT (1 Form C).
• Sealing Level: Flux-tight (standard), washable, or hermetic sealing (≤10⁻³ Pa·cm³/s).
• Terminal Style: PCB pins (standard), quick-connect tabs, or screw terminals.
• Special Markings: Private labeling, custom part numbers, and bulk/tube packaging.

Production Process & Quality Assurance

1. Incoming Material Inspection: Coil wire, contact metals, cores, and housings are certified and sampled for compliance with specifications.
2. Precision Coil Winding: Automated winding machines ensure consistent resistance (±5%) and insulation integrity.
3. Contact & Armature Assembly: High-precision assembly of moving and stationary contacts, springs, and armatures in clean-room environment.
4. Calibration: Pickup/dropout voltage and contact follow are adjusted to datasheet limits using automated test systems.
5. 100% Functional Testing: Every relay undergoes coil resistance, operate/release time, contact resistance (≤50mΩ), dielectric strength (4,000V RMS), and insulation resistance testing.
6. Life Cycle Sampling: Statistical sampling for electrical life (100,000 ops at rated load) and mechanical life (10 million ops).
7. Sealing Test (Hermetic versions): Helium mass spectrometry verifies leakage rate ≤10⁻³ Pa·cm³/s.
8. Final Visual & Packaging: Laser marking of model, date code, and lot number. Packaged in anti-static tubes or tape-and-reel for automated PCB assembly.