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65.31.8.400.0300 Finder Power relay 1NO 30A 400VNO
Finder 65.31.8.400.0300 is a 30 A electromechanical power relay with a 400 V AC coil, one normally open AgCdO contact, a rear mounting flange and Faston 250 terminals.
This product has been superseded
A direct replacement is available below.
Replacement product
65.31.8.400.4300 Finder Power relay 1NO 30A 400VNO
SKU: 65.31.8.400.4300
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Why Choose the Finder 65.31.8.400.0300 Power Relay?
The Finder 65.31.8.400.0300 is a robust electromechanical power relay designed for switching high-current loads in industrial machinery, automation equipment and electrical control systems. Part of the proven Finder 65 Series, it combines a 400 V AC coil with a single normally open contact rated at 30 A.
This relay uses silver cadmium oxide contacts to provide reliable switching under demanding operating conditions. Its normally open contact has a separation of at least 3 mm when de-energised, supporting effective circuit isolation in equipment designed around the requirements of EN 60335-1.
The 65.31.8.400.0300 features a rear mounting flange and Faston 250 quick-connect terminals measuring 6.3 × 0.8 mm. Its 7,500 VA AC1 load capacity and 400 V AC coil make it particularly suitable for industrial control systems operating from a phase-to-phase supply.
Key Advantages
- Heavy-duty electromechanical relay for industrial power switching.
- 30 A normally open contact for controlling high-current loads.
- 400 V AC coil suitable for industrial control supplies.
- Silver cadmium oxide contacts support dependable switching performance.
- Contact separation of at least 3 mm when de-energised.
- Rear mounting flange and Faston terminals simplify panel installation.
Key Features
- Finder 65 Series power relay.
- Single normally open contact configuration.
- 30 A nominal contact current.
- 400 V AC rated coil voltage.
- 7,500 VA maximum AC1 switching capacity.
- Silver cadmium oxide (AgCdO) contact material.
- Faston 250 terminals measuring 6.3 × 0.8 mm.
- Monostable, non-polarised operating mechanism.
Reliable Power Switching for Industrial Equipment
Electromechanical power relays allow a control circuit to operate a separate, higher-current electrical load. Applying 400 V AC to the coil energises the Finder 65.31.8.400.0300 and closes its normally open contact, allowing connected machinery or equipment to operate.
The Finder 65 Series is designed for industrial applications where high switching capacity, effective circuit isolation and secure panel installation are required. The relay’s 30 A contact, high instantaneous current capability and rear mounting flange make it suitable for demanding control duties.
Typical Applications
- Industrial machinery and automation systems.
- Pump, compressor and motor control panels.
- Heating, ventilation and refrigeration equipment.
- Three-phase industrial control systems.
- Power distribution and electrical control cabinets.
- Generators and uninterruptible power supply equipment.
Technical Specifications
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| Device Type | Power Relay | |
|---|---|---|
| Terminal Type | Faston / flat-pin | |
| Mounting Type | Panel | |
| Load Voltage | 400 V AC | |
| Coil / Supply Voltage | 400 V AC | |
| Contacts | 3NO | |
| HS Code | 85364900 | |
| Manufacturer | Finder | |
| Series | 65 Series | |
| Model | 65.31.8.400.0300 | |
| Product type | Electromechanical power relay | |
| Contact configuration | 1 normally open contact (1 NO / SPST-NO) | |
| Nominal contact current | 30 A | |
| Maximum instantaneous current | 120 A for 5 ms | |
| Rated contact voltage | 250 V AC | |
| Maximum switching voltage | 400 V AC / 220 V DC | |
| Maximum AC1 switching capacity | 7,500 VA | |
| AC15 switching capacity | 1,250 VA at 230 V AC | |
| Single-phase motor rating | 1.5 kW at 230 V AC | |
| Rated coil voltage | 400 V AC | |
| Coil frequency | 50 / 60 Hz | |
| Coil current | 6 mA | |
| Coil resistance | 19.8 kΩ | |
| Coil power consumption | 2.2 VA | |
| Contact material | Silver cadmium oxide (AgCdO) | |
| Contact gap | ≥ 3 mm | |
| Terminal type | Faston 250 quick-connect terminals | |
| Terminal dimensions | 6.3 × 0.8 mm | |
| Mounting type | Panel mounting with rear fixing flange | |
| Coil-to-contact insulation | 8 mm clearance and creepage distance | |
| Impulse withstand voltage | 6 kV between coil and contacts | |
| Protection category | RT I | |
| Operating temperature | -40 to +75 °C | |
| Dimensions (H × W × D) | approximately 57.2 × 32.2 × 36.5 mm | |
| Weight | approximately 72 g |
Frequently Asked Questions
What is the Finder 65.31.8.400.0300 used for?
This relay is used to switch high-current electrical loads in industrial machinery, motor controls, pumps, heating equipment and automation systems.
What coil voltage does this relay require?
The Finder 65.31.8.400.0300 has a 400 V AC coil designed for operation at 50 / 60 Hz.
What is the contact rating of this relay?
The relay has one normally open contact rated at 30 A and 250 V AC, with an AC1 switching capacity of 7,500 VA.
What contact material is used?
This model uses silver cadmium oxide (AgCdO) contacts designed for dependable high-current switching.
How is the Finder 65.31.8.400.0300 installed?
The relay is panel mounted using its rear fixing flange and connected through 6.3 × 0.8 mm Faston 250 terminals.
Trusted Industrial Switching from Finder
Finder 65 Series power relays are used throughout industrial control and automation equipment where reliable high-current switching, effective contact separation and secure panel installation are essential.
