Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
Finder 65.31.9.036.0300 – 65 Series Power relays
Finder 65.31.9.036.0300 – 65 Series Power relays.
This product has been discontinued
A direct replacement is available below.
Replacement product
Finder 65.31.9.036.4300 - 65 Series Power relays
SKU: 65.31.9.036.4300
View
Why Choose the Finder 65.31.9.036.0300 Power Relay?
The Finder 65.31.9.036.0300 is a heavy-duty 30 A electromechanical power relay featuring a 36 V DC operating coil and a single normally open contact (SPST-NO). Designed for industrial power switching, machinery and electrical control equipment, this relay belongs to the established Finder 65 Series, which provides high-current switching solutions for demanding applications.
The relay features a normally open contact with a contact gap of at least 3 mm, providing full disconnection when the relay is de-energised. Its 30 A continuous contact rating and 7,500 VA AC1 switching capacity make it suitable for appropriately rated resistive loads and industrial electrical circuits. The electromagnetic operating mechanism provides galvanic isolation between the control coil and the switched circuit.
With its 36 V DC nominal coil, rear flange mounting and Faston 250 quick-connect terminals, the Finder 65.31.9.036.0300 is designed for secure installation within industrial equipment and electrical control assemblies. The relay combines high switching capacity, a wide contact gap and practical connection options for machinery manufacturers, maintenance engineers and industrial automation specialists.
Key Advantages
- 30 A rated contact current for high-current industrial switching applications.
- 36 V DC operating coil for compatible DC control circuits.
- Single normally open contact (SPST-NO) provides straightforward on/off load control.
- Contact gap of at least 3 mm supports full disconnection when the relay is open.
- 250 V AC rated contact voltage for suitable industrial electrical loads.
- 7,500 VA rated AC1 switching capacity for resistive load applications.
- 1,250 VA AC15 switching capacity at 230 V AC for appropriately rated electromagnetic loads.
- Rear flange mounting provides a secure installation method.
- Faston 250 quick-connect terminals simplify electrical connections and servicing.
- Electromechanical switching provides galvanic isolation between coil and contacts.
- Monostable operation automatically opens the normally open contact when coil power is removed.
- Suitable for industrial machinery, heating equipment and high-current electrical control systems.
Key Features
- Finder 65 Series power relay.
- 36 V DC nominal coil voltage.
- One normally open contact (1 NO / SPST-NO).
- 30 A rated continuous contact current.
- 250 V AC rated contact voltage.
- 400 V AC maximum switching voltage.
- 7,500 VA AC1 switching capacity.
- 1,250 VA AC15 switching capacity at 230 V AC.
- Contact separation of at least 3 mm in the open position.
- 1.3 W nominal DC coil consumption.
- Silver-cadmium oxide (AgCdO) contact material for industrial power switching.
- 4 kV coil-to-contact impulse withstand voltage.
- 2,500 V AC dielectric strength between open contacts.
- Rear flange mounting for chassis or panel installation.
- Faston 250 terminals measuring 6.3 × 0.8 mm.
- Monostable electromagnetic operating mechanism.
Reliable High-Current Switching for Industrial Automation
The Finder 65.31.9.036.0300 is designed to control electrical loads through a separate low-power electromagnetic coil circuit. When the 36 V DC coil is energised, the relay's normally open contact closes, completing the connected load circuit. When coil power is removed, the contact opens automatically, interrupting the circuit. This arrangement allows industrial control equipment to operate higher-current loads without carrying the load current directly through the control electronics.
The Finder 65 Series provides high-current switching capability for industrial electrical equipment, with the 65.31-0300 configuration incorporating a normally open contact with a gap of at least 3 mm. This wider contact separation is useful in applications requiring full disconnection. The relay's rear flange mounting and Faston 250 terminals make it suitable for installation within machinery and control assemblies, provided the wiring, protective devices and connected loads are selected according to the applicable electrical ratings.
Typical Applications
- Industrial machinery and manufacturing equipment.
- High-current electrical switching circuits.
- Industrial automation and control systems.
- Industrial heating elements, furnaces and ovens.
- Electrical power distribution and load control.
- Motor control circuits within the specified motor and switching ratings.
- Industrial process control equipment.
- Electrical control panels and chassis-mounted assemblies.
- OEM machinery requiring a normally open power relay.
- Equipment requiring a wide-gap power switching contact.
Technical Specifications
Tick the specs you need, then view products that match.
| Device Type | Power Relay | |
|---|---|---|
| Mounting Type | Panel | |
| Switching Current (A) | 30 A | |
| Load Voltage | 400 V AC | |
| Manufacturer | Finder | |
| Series | 65 Series Power Relays | |
| Model | 65.31.9.036.0300 | |
| Product type | Electromechanical power relay | |
| Relay configuration | Single-pole normally open (SPST-NO / 1 NO) | |
| Number of contacts | 1 normally open contact | |
| Contact arrangement | Normally open, closes when coil is energised | |
| Nominal coil voltage | 36 V DC | |
| Coil supply type | DC | |
| Operating principle | Monostable | |
| Nominal DC coil consumption | 1.3 W | |
| Rated contact current | 30 A | |
| Rated contact voltage | 250 V AC | |
| Maximum switching voltage | 400 V AC | |
| Rated load AC1 | 7,500 VA | |
| Rated load AC15 | 1,250 VA at 230 V AC | |
| Single-phase motor rating | 1.5 kW at 230 V AC | |
| DC1 switching current at 24 V DC | 30 A | |
| Minimum switching load | 1,000 mW (10 V / 10 mA) | |
| Standard contact material | Silver-cadmium oxide (AgCdO) | |
| Contact gap | At least 3 mm | |
| Open-contact disconnection | Full disconnection | |
| Mechanical endurance | 30 million operations for the DC coil version | |
| Electrical endurance | 50,000 operations at rated AC1 load | |
| Typical operate time | 15 ms | |
| Typical release time | 4 ms | |
| Coil-to-contact impulse withstand voltage | 4 kV (1.2/50 µs) | |
| Dielectric strength between coil and contacts | 2,500 V AC | |
| Dielectric strength between open contacts | 2,500 V AC | |
| Insulation between coil and contacts | Basic insulation | |
| Operating ambient temperature | −40 to +75 °C | |
| Environmental protection category | RT I | |
| Mounting type | Rear flange / panel mounting | |
| Terminal arrangement | Faston 250 quick-connect terminals | |
| Terminal dimensions | 6.3 × 0.8 mm | |
| Approximate body dimensions | 36.5 × 32.2 × 52 mm |
Frequently Asked Questions
What is the Finder 65.31.9.036.0300 used for?
The Finder 65.31.9.036.0300 is an industrial power relay designed to switch electrical loads in machinery, automation systems, heating equipment and electrical control assemblies. It features a single normally open contact rated at 30 A, operated by a 36 V DC coil.
What coil voltage does the Finder 65.31.9.036.0300 require?
The relay requires a 36 V DC nominal coil supply. It should be connected to a suitable DC control circuit with the correct polarity requirements, wiring and electrical protection for the equipment.
What is the contact rating of the Finder 65.31.9.036.0300?
The relay has one normally open contact rated at 30 A and 250 V AC, with a maximum switching voltage of 400 V AC. Its rated AC1 switching capacity is 7,500 VA. The permitted load depends on the switching category and operating conditions.
Does the Finder 65.31.9.036.0300 have a changeover contact?
No. The 65.31.9.036.0300 has a single normally open contact (SPST-NO), not a changeover contact. The contact closes when the coil is energised and opens when the coil is de-energised. The open-contact gap is at least 3 mm.
How is the Finder 65.31.9.036.0300 installed?
The relay is designed for rear flange or panel mounting and uses Faston 250 quick-connect terminals measuring 6.3 × 0.8 mm. It can be secured to a suitable mounting surface within industrial equipment, with appropriately rated electrical connections.
Trusted by Industrial Automation Professionals Worldwide
Finder 65 Series power relays provide dependable high-current switching for industrial machinery, automation and electrical control equipment. The Finder 65.31.9.036.0300 combines a 30 A contact rating, 36 V DC coil, single normally open contact, wide contact gap and flange-mounted Faston construction to deliver a practical solution for demanding industrial power switching applications.
