# Omron G5NB-1A-E-DC24V General Purpose Power Relay Detailed Description
- **Basic Information**
- **Brand**: Omron.
- **Series**: G5NB series, featuring compact design, high sensitivity, and combining large-capacity switching with reliable insulation performance.
- **Coil Voltage**: 24V DC, non-latching coil design, compatible with conventional DC control circuits.
- **Contact Form**: SPST-NO (Single Pole Single Throw Normally Open, 1 Form A), configured with 1 common terminal + 1 normally open contact.
- **Number of Pins**: 4 pins, designed with PCB pin terminals.
- **Package and Dimensions**: Through-hole package, measuring 20.5mm long × 7.2mm wide × 15.3mm high, compact size saves PCB layout space, weight only 4g.
- **Part Status**: Active supply, available for normal procurement and stocking.
- **Compliance Standards**: Complies with RoHS environmental directive, cadmium-free silver alloy contact design, meets green production and environmental usage requirements.
- **Performance Parameters**
- **Coil Parameters**: At ambient temperature of 23°C, typical coil resistance is 2880Ω (tolerance ±10%), rated current 8.3mA (calculated as DC24V ÷ 2880Ω), rated power 200mW, energy-efficient performance. Maximum pull-in voltage is 18V DC (75% of rated voltage), minimum release voltage is 2.4V DC (10% of rated voltage), stable magnetic characteristics, strong resistance to voltage fluctuations.
- **Contact Parameters**: Contact material is cadmium-free silver alloy, resistant to arc erosion and reliable contact, maximum contact resistance ≤100mΩ. Rated load under resistive load is AC250V 5A, DC30V 5A, maximum switching voltage AC 250V, DC 30V, maximum switching current 5A, meets medium to high power control requirements. Electrical life ≥200,000 cycles, mechanical life ≥5,000,000 cycles, high long-term stability.
- **Operation and Release Time**: Maximum operation time 10ms, maximum release time 10ms, balanced response speed, suitable for most conventional control scenarios.
- **Insulation Parameters**: Insulation resistance between coil and contacts ≥1000MΩ (measured at DC500V), withstand voltage between coil and contacts 4000VAC/1 minute, withstand voltage between contacts 750VAC/1 minute, capable of withstanding 10kV impulse voltage, excellent insulation performance, high usage safety.
- **Mechanical and Environmental Parameters**: Operating temperature range -40°C to +70°C, storage temperature range -40°C to +85°C, adaptable to extreme high and low temperature environments; no explicit limit on operating humidity, default suitability for conventional environments of 5%~85% RH (no condensation), shock resistance up to 100m/s2 (3 axes, 6 directions, 3 times each), strong vibration resistance.
- **Installation Method**
- Utilizes through-hole installation method, with 4 pins fixed to the printed circuit board by soldering, ensuring firm installation, strong resistance to vibration and detachment, compatible with mass production soldering processes.
- **Application Areas**
- Household appliances: Power control and load driving for air conditioners, water heaters, refrigerators, small appliances, etc.
- Industrial control: Start-stop of small motors, solenoid valve driving, sensor signal switching, PLC output interface expansion, and other industrial automation scenarios.
- Other scenarios: Power management in instruments and meters, circuit control in security equipment, circuit on/off in office equipment (printers, copiers), and other occasions requiring electrical isolation and medium power switching, particularly suitable for scenarios with requirements for environmental friendliness and insulation safety.