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11B250SL0048 – 3P CONTACTOR 48V W/O LATCH
Lovato 11B250SL0048 three-pole industrial contactor with 265A AC3 operational current rating, 48V AC/DC universal control coil and compatibility with optional G495 mechanical latch systems.
Why Choose the Lovato 11B250SL0048 Three-Pole Contactor?
The Lovato 11B250SL0048 is a heavy-duty three-pole industrial power contactor designed for reliable switching of high-current electrical loads in motor control, automation and power distribution systems. Part of the established Lovato B250 contactor series, it is engineered for panel builders, OEM machine manufacturers and industrial electrical professionals.
This contactor features an electronically controlled 48 V AC/DC operating coil, allowing it to integrate with either alternating-current or direct-current control circuits. It is also specifically prepared for installation of the optional Lovato G495 mechanical latch, providing flexibility for applications requiring mechanically maintained contact operation.
With an IEC operational current rating of 265 A in AC-3 duty, a conventional thermal current rating of 350 A and a 140 kW motor rating at 400 V, the 11B250SL0048 is suitable for controlling large three-phase motors and demanding industrial electrical loads.
Key Advantages
- Heavy-duty three-pole industrial power contactor.
- 265 A IEC operational current rating in AC-3 duty.
- 350 A conventional thermal current rating.
- 48 V AC/DC electronically controlled operating coil.
- Prepared for the optional Lovato G495 mechanical latch.
- Long mechanical and electrical operating life.
Key Features
- Lovato B250 industrial contactor series.
- Three main power poles.
- 265 A AC-3 rated operational current.
- 350 A AC-1 current rating at 40°C.
- 140 kW AC-3 motor rating at 400 V.
- 48 V AC/DC operating-coil voltage.
- Predisposed for installation of a G495 mechanical latch.
- Screw-mounted construction for industrial control panels.
Reliable High-Current Motor Control
Industrial contactors such as the Lovato 11B250SL0048 allow large three-phase loads to be controlled using a lower-power switching signal. This enables motors, pumps, compressors, conveyors and production machinery to be operated remotely through PLCs, control relays and automated electrical panels.
The electronically controlled AC/DC coil provides flexible integration with different control-power systems. Compatibility with the optional G495 mechanical latch also allows the contactor to be adapted for maintained switching applications where the selected contact position must remain mechanically held.
Typical Applications
- Industrial motor control centres.
- Pumps, compressors and ventilation systems.
- Conveyor and material-handling equipment.
- Industrial automation and production machinery.
- Power distribution panels and switchgear.
- Maintained switching systems using an optional mechanical latch.
Technical Specifications
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| Terminal Type | Bar / bolt | |
|---|---|---|
| Coil Type | AC, AC/DC, DC | |
| Coil Voltage Range | 42–48 V | |
| Power | 140 kW | |
| Current | 265 A | |
| Voltage | 48 V | |
| Phase | Three Phase | |
| IP Rating | IP20 | |
| Poles | 3-pole | |
| Device Type | Contactor | |
| Current AC-1 | 350 A | |
| Series | B250 Contactors | |
| Product type | Three-pole contactor predisposed for mechanical latch | |
| Operational current (AC3) | 265 A | |
| Operational current (AC1) | approx. 350 A | |
| Operational current (AC4 at 400 V) | 92 A | |
| Rated operational power AC3 at 400 V | 140 kW | |
| Control coil voltage | 48 V AC/DC | |
| Mechanical latch compatibility | G495 optional latch system | |
| Number of poles | 3 | |
| Contact configuration | 3 NO | |
| Type of coil | AC/DC coil | |
| Type of mounting | Screw mounting | |
| Terminal type | Bolt connection | |
| Package dimensions | approx. 208 × 148 × 232 mm | |
| Weight | approx. 9.3 kg | |
| Protection rating | IP20 | |
| Compliance | IEC/EN 60947-1, IEC/EN 60947-4-1, UL 60947-1, UL 60947-4-1, CSA C22.2 n° 60947-1, CSA C22.2 n° 60947-4-1 |
Frequently Asked Questions
What is the Lovato 11B250SL0048 used for?
It is used for switching high-current three-phase loads in industrial motor control, automation, production machinery and power distribution systems.
What is the AC-3 current rating of this contactor?
The Lovato 11B250SL0048 has an IEC rated operational current of 265 A in AC-3 duty.
What control voltage does the coil require?
The electronically controlled operating coil is rated for 48 V AC or 48 V DC.
Does the Lovato 11B250SL0048 include a mechanical latch?
No. The contactor is prepared for installation of the optional Lovato G495 mechanical latch, but the latch is not supplied with this model.
Is the Lovato 11B250SL0048 still in production?
The product is listed by Lovato Electric as out of catalogue, so availability may be limited to remaining distributor stock, refurbished units or compatible replacement products.
Trusted by Industrial Professionals Worldwide
Lovato B250 contactors have been widely used by electrical engineers, panel builders and OEM machine manufacturers for dependable switching of high-current industrial motors and power circuits.
