Lovato BFX5503 is a vertical mechanical interlock for one-above-the-other BF160…BF400 contactor installations with a 305–345 mm interaxis, designed to prevent simultaneous closure of the paired contactors.
£69.56
The Lovato BFX5503 is a purpose-designed vertical mechanical interlock for Lovato BF160…BF400 contactors. It is engineered for installations where two compatible contactors are mounted one above the other and provides an interaxis adjustment range of 305–345 mm.
Part of the Lovato BFX contactor accessory range, the BFX5503 mechanically prevents two associated contactors from being closed simultaneously. This makes it particularly useful in reversing, changeover and other interlocked contactor arrangements where simultaneous operation could result in an incorrect or unsafe switching condition.
The vertical arrangement enables compatible BF contactors to be installed in a stacked configuration rather than side by side. With its 305–345 mm centre-to-centre mounting range and compatibility across the BF160…BF400 family, the BFX5503 provides a dedicated mechanical interlocking solution for larger Lovato contactor assemblies.
Mechanical interlocking provides a physical means of preventing two contactors from closing at the same time. Unlike electrical interlocking alone, the mechanism acts directly on the contactor arrangement, providing an additional layer of operational control in circuits where mutually exclusive switching is required.
The Lovato BFX5503 is specifically configured for vertically arranged BF160…BF400 contactors. Its 305–345 mm interaxis range enables the paired contactors to be positioned one above the other while maintaining the mechanical connection required for reliable interlocking.
| HS Code | 85365080 |
|---|---|
| Manufacturer | Lovato Electric |
| Series | BFX / BF Contactor Accessories |
| Model | BFX5503 |
| Product type | Mechanical contactor interlock |
| Mounting arrangement | Vertical / one contactor above the other |
| Interaxis | 305–345 mm |
| Compatible contactor range | BF160…BF400 |
| Interlocking method | Mechanical |
| Quantity per package | 1 |
| Weight | approx. 0.15 kg |
| EAN | 8013975301142 |
The BFX5503 is a mechanical interlock for compatible BF160…BF400 contactors, preventing two mechanically linked contactors from closing simultaneously.
The BFX5503 is designed for compatible Lovato BF160…BF400 contactors.
The BFX5503 is designed for vertical, one-above-the-other contactor mounting rather than a side-by-side arrangement.
The BFX5503 is designed for a contactor interaxis of 305–345 mm.
A mechanical interlock physically prevents both associated contactors from closing simultaneously, making it useful for reversing, changeover and other circuits where the two switching states must remain mutually exclusive.
Lovato BFX mechanical interlocks provide panel builders, automation engineers and machine manufacturers with coordinated accessories for constructing dependable BF contactor assemblies where mechanically enforced mutually exclusive switching is required.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...