Why Choose the Finder 46.61.8.120.4000T Industrial Power Relay?
The Finder 46.61.8.120.4000T is a robust 16 A miniature industrial electromechanical relay featuring a 120 V AC coil, single-pole changeover contacts (SPDT / 1 CO) and silver-tin oxide (AgSnO₂) contact material. Part of the established Finder 46 Series, this relay is designed for dependable switching in industrial control systems, machinery, electrical panels and railway-related equipment.
Its 16 A rated contact current, 250 V AC rated contact voltage and 4,000 VA AC1 switching capacity make the Finder 46.61.8.120.4000T suitable for appropriately rated electrical loads. The AgSnO₂ contact material offers useful resistance to contact welding and is particularly valuable where switching conditions involve elevated inrush currents.
The 46.61.8.120.4000T is identified as a special railway-oriented version of the Finder 46.61 relay, with RT II flux-proof construction and a plug-in design suitable for compatible relay sockets or direct connection using Faston 187 terminals. Its compact construction and straightforward AC coil operation make it a practical choice for OEM equipment, industrial maintenance and replacement installations where the exact relay specification is required.
Key Advantages
- 120 V AC operating coil for compatible AC control circuits.
- 16 A rated changeover contact for industrial switching applications.
- Single-pole changeover arrangement (SPDT / 1 CO) provides normally open and normally closed switching paths.
- Silver-tin oxide (AgSnO₂) contacts offer a cadmium-free solution with good resistance to contact welding.
- Special railway-oriented variant for applications requiring this exact Finder configuration.
- 4,000 VA AC1 switching capacity for appropriately rated resistive AC loads.
- 440 V AC maximum switching voltage, subject to applicable load limitations.
- RT II flux-proof construction provides protection during suitable manufacturing and handling processes.
- Faston 187 connection compatibility allows convenient direct wiring.
- Compatible Finder 97 Series socket options support modular installation and replacement.
- 6 kV coil-to-contact impulse withstand supports electrical insulation.
- 10 million mechanical operations under specified operating conditions.
- Compact industrial relay design helps conserve space within control equipment.
Key Features
- Genuine Finder 46 Series miniature industrial relay.
- Manufacturer part number: 46.61.8.120.4000T.
- Nominal coil voltage: 120 V AC.
- Coil frequency: 50/60 Hz.
- Contact arrangement: 1 CO / SPDT.
- Rated contact current: 16 A.
- Rated contact voltage: 250 V AC.
- Maximum switching voltage: 440 V AC.
- Contact material: Silver-tin oxide (AgSnO₂).
- Nominal AC coil consumption: 1.2 VA.
- Monostable electromagnetic operation.
- RT II flux-proof environmental protection.
- Special railway-oriented product version.
- Faston 187 (4.8 × 0.5 mm) terminals.
- Socket mounting or direct Faston connection.
- 15 ms typical operate time.
- 5 ms typical release time.
- −40 to +70 °C operating temperature range.
- Mechanical endurance of 10 million operations.
Reliable 120 V AC Switching for Industrial and Railway Control Systems
The Finder 46.61.8.120.4000T operates using a 120 V AC electromagnetic coil. When the coil is energised, its single changeover contact transfers from the normally closed position to the normally open position. When the coil is de-energised, the contact returns to its normal state. This provides a straightforward method of controlling an electrical circuit through a separate AC control signal.
The AgSnO₂ contact material distinguishes this version from standard AgNi-contact variants within the Finder 46 Series. Silver-tin oxide contacts are particularly useful where switching conditions require enhanced resistance to contact welding. The relay also provides a 16 A continuous contact rating for appropriately rated loads, together with the electrical insulation characteristics associated with the 46.61 family.
The T-suffix version is identified in specialist product catalogues as a railway-oriented relay variant. This makes it relevant to railway electrical equipment, signalling-related auxiliary circuits and rolling-stock control assemblies where the exact part number is specified. However, suitability for a particular railway installation, including any required EN 50155, EN 45545 or other railway-specific approvals, must be confirmed against the exact manufacturer's documentation and project requirements rather than assumed from the suffix alone.
Typical Applications
- Railway electrical control equipment requiring the specified relay variant.
- Rolling-stock auxiliary control circuits, subject to project approval.
- Industrial automation and machinery control systems.
- Electrical control panels and relay assemblies.
- Auxiliary switching and signalling circuits.
- Industrial equipment operating with 120 V AC control supplies.
- OEM machinery and electrical equipment manufacturing.
- Heating, ventilation and air-conditioning control circuits.
- Electrical changeover and interlocking applications.
- Maintenance and replacement of compatible Finder 46 Series relays.
