Lovato BFX5500 side-mount mechanical interlock for compatible BF160 and larger BF series contactors, designed to prevent simultaneous closure of two side-by-side contactors.
£28.50
The Lovato BFX5500 is a purpose-designed mechanical interlock for side-by-side BF series contactors. It mechanically prevents two associated contactors from closing simultaneously, making it an important accessory for reversing, changeover and other electrically interlocked contactor arrangements.
Installed between two compatible contactors positioned side by side, the BFX5500 provides direct mechanical interlocking without auxiliary electrical contacts. When one contactor is closed, the mechanism physically prevents the second contactor from closing, providing an additional level of protection alongside the electrical control circuit.
The BFX5500 is associated with Lovato BF160 and larger BF contactor assemblies. Lovato's current catalogue lists the accessory for BF160–BF630 contactors, while earlier BF160–BF400 catalogue documentation lists BFX5500 for that range. It is supplied individually and has a manufacturer-listed weight of 89 g.
Mechanical interlocks are used where two contactors must never be mechanically closed at the same time. In a reversing motor starter, for example, simultaneous closure of the forward and reverse contactors could create a serious electrical fault. The Lovato BFX5500 provides a physical interlocking mechanism so that operation of one contactor prevents the other from closing.
This mechanical protection complements the electrical interlocking normally incorporated into the control circuit. The side-by-side installation arrangement makes the BFX5500 particularly suitable for compact industrial control panels, motor control centres and switching assemblies using compatible Lovato BF contactors.
| Manufacturer | Lovato Electric |
|---|---|
| Series | BFX |
| Model | BFX5500 |
| Product type | Contactor accessory |
| Accessory type | Mechanical interlock |
| Mounting arrangement | Side by side |
| Function | Prevents simultaneous mechanical closure of two associated contactors |
| Auxiliary contacts | None |
| Current manufacturer-listed compatibility | BF160–BF630 contactors |
| BF160–BF400 catalogue compatibility | BF160–BF400 contactor range |
| Certification | cULus |
| Weight | 89 g |
| Quantity per package | 1 |
| Package dimensions | 90 × 65 × 45 mm |
| Package volume | 263 cm³ |
| EAN13 | 8013975301135 |
| HS code | 85389099 |
The BFX5500 is a mechanical interlock for two compatible Lovato BF contactors installed side by side. It prevents both contactors from mechanically closing at the same time.
Yes. The BFX5500 is specified in Lovato documentation for BF160–BF400 contactor assemblies. Lovato's current catalogue extends the listed BFX5500 compatibility through BF630.
The interlock mechanically links two side-by-side contactors. When one contactor closes, the mechanism physically prevents the second contactor from closing until the first contactor has released.
No. The BFX5500 is a mechanical interlocking accessory and does not incorporate auxiliary electrical contacts.
The BFX5500 is commonly used in reversing motor starters, changeover circuits and other contactor assemblies where two contactors must be mechanically prevented from closing simultaneously.
Lovato Electric mechanical interlocks provide purpose-designed protection for industrial contactor assemblies, helping prevent simultaneous contactor operation in reversing, changeover and other mutually exclusive switching applications.
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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...