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65.31.9.220.4300 Finder Power relay 1NO 30A DC 220VNO
Finder 65.31.9.220.4300 industrial electromechanical power relay with a 220 V DC nominal coil, 30 A single normally open contact, silver tin oxide contact material, minimum 3 mm open-contact gap, Faston 250 quick-connect terminals and rear flange mounting. Confirm exact 220 V DC coil specifications and availability with the manufacturer.
£17.24
Why Choose the Finder 65.31.9.220.4300 Power Relay?
The Finder 65.31.9.220.4300 is a heavy-duty 30 A industrial electromechanical power relay designed for high-current electrical switching in industrial automation, machinery and control systems. Part of the Finder 65 Series, this model features a 220 V DC nominal coil and a single normally open contact (SPST-NO / 1 Form A).
The 65.31-4300 configuration provides a 30 A rated contact current, 250 V AC rated contact voltage and 7,500 VA AC1 resistive switching capacity. Its silver tin oxide (AgSnO₂) contacts are designed for repeated switching of compatible industrial electrical loads.
With a minimum 3 mm open-contact gap, Faston 250 quick-connect terminals and a rear flange mounting arrangement, the Finder 65.31.9.220.4300 offers a practical solution for industrial equipment requiring a high-current normally open switching function controlled by a nominal 220 V DC supply.
Specification note: The contact and construction characteristics below relate to the Finder 65.31-4300 relay configuration. The exact coil resistance, operating voltage limits and availability of the 220 V DC version should be verified against Finder's current part-specific documentation before ordering or installation.
Key Advantages
- 30 A rated contact current for demanding industrial electrical switching.
- 220 V DC nominal coil for compatible high-voltage DC control systems.
- Single normally open contact (SPST-NO) for straightforward load control.
- Minimum 3 mm open-contact gap for increased physical contact separation.
- Silver tin oxide (AgSnO₂) contacts for robust industrial switching.
- 7,500 VA AC1 resistive switching capacity for appropriately rated loads.
- Faston 250 quick-connect terminals for convenient electrical connections.
- Rear flange mounting for secure installation on compatible panels and chassis.
- Non-latching operation returns the contact to its open state when coil power is removed.
- High-current switching capability for industrial machinery and electrical equipment.
- Separate control and load circuits for electrically operated switching.
- Suitable for industrial automation, heating equipment and electrical power control applications.
Key Features
- Finder 65 Series industrial power relay.
- 30 A rated contact current.
- 220 V DC nominal coil voltage.
- One normally open contact (1 NO).
- SPST-NO / 1 Form A contact configuration.
- 250 V AC rated contact voltage.
- 400 V AC maximum switching voltage, subject to applicable conditions.
- 7,500 VA AC1 resistive load rating.
- 1,250 VA AC15 switching capacity at 230 V AC.
- Silver tin oxide (AgSnO₂) contact material.
- Minimum 3 mm open-contact gap.
- Faston 250 terminals measuring 6.3 × 0.8 mm.
- Rear flange mounting arrangement.
- Four electrical terminals for the coil and normally open contact.
- Monostable, non-latching operation.
- Industrial-grade electromechanical construction.
Reliable 30 A Switching for 220 V DC Industrial Control Systems
The Finder 65.31.9.220.4300 operates as an electrically controlled power switch. When its 220 V DC coil is energised within the specified operating range, the normally open contact closes and allows current to flow through the connected load circuit. When coil power is removed, the contact returns to its normally open position.
The single normally open contact is particularly useful where a control signal must activate one high-current electrical load. Its 30 A contact rating and 7,500 VA AC1 resistive switching capacity make the 65.31-4300 configuration suitable for appropriately rated industrial heating equipment, electrical power circuits and machinery.
The silver tin oxide contact material supports repeated switching of compatible electrical loads. Its minimum 3 mm open-contact gap provides increased physical separation between the contacts when the relay is de-energised. However, the complete installation must still comply with the applicable electrical safety and isolation requirements.
The relay's 220 V DC nominal coil makes it relevant to industrial equipment designed around high-voltage DC control supplies. The coil voltage determines the supply required to operate the relay; it does not determine the permissible voltage or current that the contacts can switch.
For installation, the Faston 250 quick-connect terminals allow connections using compatible receptacles, while the rear flange mounting arrangement provides a practical method of securing the relay to suitable panels or chassis.
Installation and Electrical Compatibility
The Finder 65.31.9.220.4300 is intended for installation in compatible industrial electrical equipment. Its rear flange mounting arrangement supports secure panel or chassis installation, while Faston 250 terminals provide connections for the coil and switching circuit.
Before installation, confirm that the control supply matches the relay's 220 V DC nominal coil and falls within the manufacturer's permitted operating voltage range. High-voltage DC circuits require appropriate isolation, protection and safe working procedures.
Verify the connected load's operating voltage, steady-state current, inrush current and switching characteristics against the relay's published ratings. Particular care is required for motors, inductive loads and high-voltage DC circuits, where permissible switching currents may be significantly lower than the nominal AC resistive contact rating.
Typical Applications
- Industrial automation and electrical control panels.
- Equipment using nominal 220 V DC control supplies.
- High-current resistive load switching.
- Industrial heating and temperature control equipment.
- Industrial machinery and manufacturing systems.
- Electrical power management equipment.
- Power generation and distribution auxiliary control systems.
- Commercial and industrial lighting control.
- Industrial process control systems.
- Ventilation and HVAC equipment control.
- Conveyor systems and material handling equipment.
- Building automation and electrical installations.
- Electrical equipment maintenance and relay replacement.
- Applications requiring a 220 V DC coil and 30 A normally open contact.
Technical Specifications
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| Device Type | Power Relay | |
|---|---|---|
| Terminal Type | Faston / flat-pin | |
| Switching Current (A) | 30 A | |
| Load Voltage | 400 V AC | |
| Mounting Type | Panel | |
| Manufacturer | Finder | |
| Series | 65 Series Power Relays | |
| Model | 65.31.9.220.4300 | |
| Product type | Industrial electromechanical power relay | |
| Contact configuration | SPST-NO / 1 Form A | |
| Number of poles | 1 | |
| Normally open contacts | 1 | |
| Rated contact current | 30 A | |
| Rated contact voltage | 250 V AC | |
| Maximum switching voltage | 400 V AC, subject to applicable conditions | |
| Rated resistive load (AC1) | 7,500 VA | |
| Rated inductive load (AC15 at 230 V AC) | 1,250 VA | |
| Single-phase motor rating at 230 V AC | 1.5 kW | |
| Nominal coil voltage | 220 V DC | |
| Coil designation | 9.220 | |
| Coil type | DC, non-latching | |
| Typical series DC coil consumption | 1.3 W | |
| Indicative nominal coil current | Approximately 5.9 mA, calculated using 1.3 W at 220 V DC | |
| Indicative nominal coil resistance | Approximately 37.2 kΩ, calculated using 1.3 W at 220 V DC | |
| Coil operating voltage range | Confirm against the manufacturer's 220 V DC coil specification | |
| Contact material | Silver tin oxide (AgSnO₂) | |
| Open-contact gap | At least 3 mm | |
| Mounting type | Chassis / panel mounting | |
| Mounting arrangement | Rear flange | |
| Terminal type | Faston 250 quick-connect | |
| Terminal dimensions | 6.3 × 0.8 mm | |
| Number of electrical terminals | 4 | |
| Series operating temperature range | −40 to +75 °C, subject to coil and installation conditions | |
| Series mechanical endurance | Up to 30 million operations under specified conditions | |
| Series electrical endurance | 30,000 operations at the specified rated AC1 load | |
| Series operating time | Approximately 15 ms | |
| Series release time | Approximately 4 ms | |
| Coil-to-contact impulse withstand voltage | 4 kV, according to the series specification | |
| Environmental protection category | RT I | |
| Relay operation | Electromagnetic, monostable | |
| Application | Industrial automation, high-current load switching and machinery control |
Frequently Asked Questions
What is the Finder 65.31.9.220.4300 used for?
The Finder 65.31.9.220.4300 is an industrial power relay intended for switching compatible electrical loads in automation systems, machinery and electrical control panels. It features a 30 A normally open contact and a 220 V DC nominal coil.
What is the coil voltage of the Finder 65.31.9.220.4300?
The part number identifies a 220 V DC nominal coil. The relay must be operated using a compatible DC control supply within the manufacturer's specified operating voltage limits.
What is the nominal coil current of the 220 V DC version?
Using the typical Finder 65 Series DC coil consumption of 1.3 W, the calculated nominal coil current is approximately 5.9 mA at 220 V DC. This is an indicative calculation rather than a confirmed part-specific coil measurement.
What is the operating voltage range of the 220 V DC coil?
The exact operating voltage range should be checked against Finder's documentation for the 9.220 coil designation. Operating limits can depend on the specific coil design and ambient temperature.
What is the contact rating of this relay?
The Finder 65.31-4300 configuration provides a 30 A rated contact current at 250 V AC, with a 7,500 VA AC1 resistive switching capacity. The permissible load depends on the voltage, switching category and operating conditions.
How many contacts does the Finder 65.31.9.220.4300 have?
The relay has one normally open contact (SPST-NO / 1 Form A). The contact closes when the coil is energised and opens when coil power is removed. It does not provide a normally closed or changeover contact.
What is the benefit of the 3 mm contact gap?
The minimum 3 mm open-contact gap provides increased physical separation between the contacts when the relay is de-energised. The complete electrical installation must still meet the applicable safety and isolation requirements.
How is the Finder 65.31.9.220.4300 mounted?
The relay uses a rear flange mounting arrangement for installation on a compatible panel or chassis. Electrical connections are made using Faston 250 quick-connect terminals measuring 6.3 × 0.8 mm.
What contact material is used in the Finder 65.31.9.220.4300?
The 65.31-4300 configuration uses silver tin oxide (AgSnO₂) contacts. This cadmium-free contact material is intended for switching compatible industrial electrical loads.
What is the difference between the Finder 65.31.9.220.4300 and 65.31.9.220.4000?
The main difference is the contact configuration and current rating. The 65.31.9.220.4300 has one normally open contact rated at 30 A, while the 65.31.9.220.4000 has one normally open and one normally closed contact rated at 20 A. Both identify a 220 V DC nominal coil, but their switching functions are different.
Can the Finder 65.31.9.220.4300 switch DC loads?
Yes, the Finder 65.31-4300 configuration can switch compatible DC loads within its published breaking-capacity limits. However, a 220 V DC coil does not mean the contacts can switch 30 A at 220 V DC. The permissible DC switching current depends on voltage and load characteristics and must be checked separately.
Does the Finder 65.31.9.220.4300 require a continuous coil supply?
Yes. The relay is a non-latching electromechanical relay. The coil must remain energised to keep the normally open contact closed. When coil power is removed, the contact returns to its open position.
Industrial Power Switching from Finder
The Finder 65.31.9.220.4300 combines the high-current switching characteristics of the Finder 65.31-4300 range with a 220 V DC nominal coil, 30 A normally open contact, silver tin oxide contact material, minimum 3 mm contact gap, Faston 250 terminals and rear flange mounting. It offers a practical solution for compatible industrial control equipment requiring high-current switching from a high-voltage DC control supply. Confirm the exact coil specifications and product availability before ordering.
