Lovato BF1801A57560 BF18 Three-Pole Contactor, 18 A AC-3, 575 V AC 60 Hz Coil, 1 NC Auxiliary Contact
The Lovato BF1801A57560 is a compact BF Series three-pole power contactor designed for motor control, industrial load switching and control panel applications. Rated at 18 A AC-3 with a 575 V AC 60 Hz coil, it is suited to OEM machinery, HVAC panels, pump systems, fan control, compressors and general industrial automation cabinets.
This BF18 contactor features 3 normally open main contacts and a built-in 1 NC auxiliary contact with mirror contact function for feedback, interlocking and safety-related control circuits. With screw terminals, 35 mm DIN rail mounting and a 32 A AC-1 thermal rating, the BF1801A57560 provides dependable switching for compact motor starter and control panel assemblies requiring a 575 V AC 60 Hz command supply.
Key Features
- Three-pole BF18 contactor for motor control and industrial load switching.
- 18 A AC-3 operating current for switching three-phase motors.
- 7.5 kW motor rating at 400 V AC-3 for common IEC motor control applications.
- 575 V AC 60 Hz coil for control systems using a 575 V AC 60 Hz command supply.
- Built-in 1 NC auxiliary contact with mirror contact function for interlocking and feedback circuits.
- 32 A AC-1 thermal current for resistive and general-purpose switching duties.
- 10 HP at 460/480 V and 15 HP at 575/600 V under UL/CSA three-phase motor ratings.
- 690 V rated insulation voltage and 6 kV impulse withstand voltage.
- Screw terminals with IP20 protection when correctly wired.
- 35 mm DIN rail or screw mounting for flexible installation in control panels.
- Compatible with selected Lovato BF Series accessories including overload relays, auxiliary contact blocks, mechanical interlocks, connection kits and surge suppressors.
Technical Specifications
| Manufacturer | Lovato Electric |
|---|---|
| Part Number | BF1801A57560 |
| Product Type | Three-pole power contactor |
| Series | BF Series |
| Product Type Designation | BF18 |
| Number of Poles | 3 |
| Main Pole Configuration | 3 NO |
| Built-In Auxiliary Contact | 1 NC with mirror contact function |
| Coil Type | AC coil, 60 Hz |
| Rated Coil Voltage | 575 V AC at 60 Hz |
| 60 Hz Coil Pick-Up Range | 80 to 110% Us |
| Coil Drop-Out Range | 20 to 55% Us |
| 60 Hz Coil Consumption | 75 VA inrush, 9 VA holding |
| Holding Dissipation | 2.5 W |
| IEC Conventional Free Air Thermal Current Ith | 32 A at 40 °C |
| IEC Operating Current AC-1 at 40 °C | 32 A |
| IEC Operating Current AC-1 at 55 °C | 26 A |
| IEC Operating Current AC-1 at 70 °C | 23 A |
| IEC Operating Current AC-3 | 18 A at up to 440 V, 55 °C |
| IEC Operating Current and Power AC-3 at 400 V | 18 A / 7.5 kW |
| IEC Operating Current AC-4 | 8.5 A at 400 V |
| Rated Operational Power AC-3 at 230 V | 4 kW |
| Rated Operational Power AC-3 at 400 V | 7.5 kW |
| Rated Operational Power AC-3 at 415 V | 9 kW |
| Rated Operational Power AC-3 at 440 V | 9 kW |
| Rated Operational Power AC-3 at 500 V | 10 kW |
| Rated Operational Power AC-3 at 690 V | 10 kW |
| Rated Operational Power AC-1 at 230 V | 12 kW |
| Rated Operational Power AC-1 at 400 V | 21 kW |
| Rated Operational Power AC-1 at 500 V | 26 kW |
| Rated Operational Power AC-1 at 690 V | 36 kW |
| DC-1 Current, 1 Pole in Series | 17 A at 24 V or below, 15 A at 48 V, 15 A at 75 V, 6 A at 110 V |
| DC-1 Current, 2 Poles in Series | 20 A at 24 V or below, 20 A at 48 V, 20 A at 75 V, 13 A at 110 V, 1 A at 220 V |
| DC-1 Current, 3 Poles in Series | 22 A at 24 V or below, 22 A at 48 V, 20 A at 75 V, 16 A at 110 V, 11 A at 220 V |
| DC-3 / DC-5 Current, 1 Pole in Series | 12 A at 24 V or below, 11 A at 48 V, 11 A at 75 V, 2 A at 110 V |
| DC-3 / DC-5 Current, 2 Poles in Series | 15 A at 24 V or below, 13 A at 48 V, 13 A at 75 V, 8 A at 110 V, 2 A at 220 V |
| DC-3 / DC-5 Current, 3 Poles in Series | 18 A at 24 V or below, 18 A at 48 V, 16 A at 75 V, 12 A at 110 V, 6 A at 220 V |
| UL Rated Operational Voltage | 600 V AC |
| UL/CSA Full-Load Current at 480 V | 14 A |
| UL/CSA Full-Load Current at 600 V | 17 A |
| UL/CSA Single-Phase Horsepower Rating at 110/120 V | 1 HP |
| UL/CSA Single-Phase Horsepower Rating at 230 V | 3 HP |
| UL/CSA Three-Phase Horsepower Rating at 200/208 V | 5 HP |
| UL/CSA Three-Phase Horsepower Rating at 220/240 V | 5 HP |
| UL/CSA Three-Phase Horsepower Rating at 460/480 V | 10 HP |
| UL/CSA Three-Phase Horsepower Rating at 575/600 V | 15 HP |
| Rated Insulation Voltage | 690 V IEC/EN |
| Rated Impulse Withstand Voltage | 6 kV |
| Operational Frequency | 25 to 400 Hz |
| Short-Time Allowable Current | 200 A for 10 seconds |
| Making Capacity | 180 A RMS |
| Breaking Capacity | 144 A at 440 V, 120 A at 500 V, 94 A at 690 V |
| Protection Fuse | 32 A gG or 20 A aM, IEC |
| UL High Fault SCCR | 100 kA with Class J fuse, 60 A at 600 V |
| UL Standard Fault SCCR | 5 kA with 80 A fuse at 600 V |
| Resistance per Pole | 2.5 mΩ average |
| Power Dissipation per Pole | 2.6 W at Ith, 0.8 W at AC-3 |
| Auxiliary Contact Thermal Current | 10 A |
| Auxiliary Contact Designation | A600 / P600, IEC/EN 60947-5-1 |
| Auxiliary Contact AC-15 Rating | 3 A at 230 V, 1.9 A at 400 V, 1.4 A at 500 V |
| Auxiliary Contact DC-12 Rating | 5.7 A at 110 V |
| Auxiliary Contact DC-13 Rating | 5.7 A at 24 V, 2.9 A at 48 V, 2.3 A at 60 V, 1.25 A at 110 V, 1.1 A at 125 V, 0.55 A at 220 V, 0.2 A at 600 V |
| Terminal Type | Screw terminals |
| Main Terminal Tightening Torque | 1.5 to 1.8 Nm |
| Coil Terminal Tightening Torque | 0.8 to 1 Nm |
| Maximum Wires per Terminal | 2 |
| Flexible Conductor Section Without Lug | 1 to 6 mm² |
| Flexible Conductor Section With Lug | 1 to 4 mm² |
| Flexible Conductor Section With Insulated Spade Lug | 1 to 4 mm² |
| Maximum AWG Conductor Size | AWG 10 |
| Cable Stripping Length | 10 mm main circuit, 8 mm command circuit |
| Power Terminal Protection | IP20 when correctly wired |
| Mounting | Screw mounting or 35 mm DIN rail |
| Operating Position | Vertical plane, allowable plus or minus 30° |
| Width | 45 mm |
| Height | 81 mm |
| Mechanical Life | 20,000,000 cycles |
| Electrical Life | 1,600,000 cycles |
| B10d Rated Load | 1,600,000 cycles |
| B10d Mechanical Load | 20,000,000 cycles |
| Maximum Mechanical Operating Frequency | 3600 cycles/hour |
| AC Closing Time, NO Contacts | 8 to 24 ms |
| AC Opening Time, NO Contacts | 10 to 20 ms |
| AC Closing Time, NC Contacts | 14 to 28 ms |
| AC Opening Time, NC Contacts | 7 to 18 ms |
| Mirror Contact Function | Yes, according to IEC/EN 60947-4-1 Annex F |
| EMC Compatibility | Yes |
| Operating Temperature | -50 to +70 °C |
| Storage Temperature | -60 to +80 °C |
| Maximum Altitude | 3000 m |
| Pollution Degree | 3 |
| Weight | 368 g |
| Package Dimensions | 90 x 47 x 86 mm |
| EAN | 8013975160725 |
| HS Code | 85365080 |
Compliance and Approvals
The Lovato BF1801A57560 is designed for low-voltage industrial control systems and motor starter assemblies where recognised contactor standards are required. Always verify final approval suitability against the latest Lovato documentation and the requirements of the installation.
- IEC/EN/BS 60947-1
- IEC/EN/BS 60947-4-1
- UL 60947-1
- UL 60947-4-1
- CSA C22.2 No. 60947-1
- CSA C22.2 No. 60947-4-1
- IEC/EN 60335-2-89
- CCC, EAC and cULus certifications
- UL 60335-2-40 and UL 60335-2-89 LZGH A2L listings
- CSA C22.2 No. 60335-2-40:22 and CSA C22.2 No. 60335-2-89:21 LZGH A2L listings
- CB certificate, LOVAG certificates, EU declaration of conformity and UKCA declaration of conformity available from Lovato
Typical Applications
- Direct-on-line motor starter panels using a 575 V AC 60 Hz control circuit.
- Pump, fan, conveyor and compressor motor control systems.
- HVAC, refrigeration and OEM machinery panels.
- Industrial switching of three-phase motors up to 7.5 kW at 400 V AC-3.
- Control circuits requiring a built-in normally closed auxiliary contact for feedback or interlocking.
- Reversing and star-delta starter assemblies when used with compatible Lovato interlocks and connection kits.
- Resistive and general-purpose AC-1 switching duties up to 32 A, subject to application design.
- Maintenance replacement in panels requiring a BF18 contactor with 575 V AC 60 Hz coil operation and 1 NC auxiliary contact.
Installation Guidance
- Confirm that the motor or load current, utilisation category and switching frequency are within the BF1801A57560 rating.
- Verify that the control supply is 575 V AC at 60 Hz before energising the coil.
- Mount the contactor on a standard 35 mm DIN rail or secure it with screw fixing where required.
- Use correctly sized conductors and tighten the main and coil terminals to the specified torque range.
- Use the built-in 1 NC auxiliary contact for feedback, electrical interlocking or mirror contact signalling where appropriate.
- Pair the contactor with a correctly selected overload relay, fuse or protective device according to the motor and installation design.
- For reversing assemblies, select compatible Lovato BF Series mechanical interlocks and rigid connection kits.
- For DC load switching, check the permitted current against the voltage, time constant and number of poles connected in series.
BF1801A57560 Selection Comparison
| Model Type | Main Contacts | Auxiliary Contact | Coil Supply | Best Used For |
|---|---|---|---|---|
| BF1801A57560 | 3 NO | 1 NC | 575 V AC 60 Hz | Motor switching where an 18 A AC-3 contactor, 575 V AC 60 Hz coil and NC auxiliary feedback contact are required. |
| BF1810A57560 | 3 NO | 1 NO | 575 V AC 60 Hz | Similar BF18 switching duties where a normally open auxiliary contact is required instead. |
| BF1801A46060 | 3 NO | 1 NC | 460 V AC 60 Hz | Panels requiring the same BF18 frame and NC auxiliary contact with a 460 V AC 60 Hz command supply. |
| BF1801A23060 | 3 NO | 1 NC | 230 V AC 60 Hz | Similar BF18 duties where the control system uses a 230 V AC 60 Hz command supply. |
Trusted By Engineers and Panel Builders
“The BF1801A57560 is a practical choice for compact motor control panels where an 18 A IEC contactor, 575 V AC 60 Hz coil and built-in NC auxiliary contact are required.” Industrial Control Panel Engineer
Frequently Asked Questions
What is the Lovato BF1801A57560 used for?
The Lovato BF1801A57560 is used for switching three-phase loads such as motors, pumps, fans, compressors and machine control circuits. It is rated at 18 A AC-3 and has a 575 V AC 60 Hz coil.
What coil voltage does the BF1801A57560 use?
This contactor uses a 575 V AC 60 Hz coil. The control supply should match this voltage and frequency before the coil is energised.
How many main contacts does the BF1801A57560 have?
It has three normally open main contacts, making it suitable for switching three-phase circuits.
Does the BF1801A57560 include an auxiliary contact?
Yes. The BF1801A57560 includes a built-in 1 NC auxiliary contact with mirror contact function, suitable for feedback and interlocking circuits where the panel design requires it.
What is the AC-3 motor rating of this contactor?
The BF1801A57560 is rated at 18 A AC-3 and 7.5 kW at 400 V for motor switching applications. Under UL/CSA ratings, it is also listed at 15 HP at 575/600 V.
What is the AC-1 rating of the BF1801A57560?
The BF1801A57560 has a conventional free air thermal current and AC-1 current rating of 32 A at 40 °C.
Can the BF1801A57560 be DIN rail mounted?
Yes. It can be mounted on a standard 35 mm DIN rail or fixed by screws, depending on the panel design.
Is the BF1801A57560 suitable for 50 Hz control circuits?
This specific part number is a 575 V AC 60 Hz coil version. For 50 Hz control circuits, select and verify the correct Lovato 50 Hz or 50/60 Hz coil variant before ordering or installing.
Is the BF1801A57560 suitable for DC load switching?
Yes, the BF1801A57560 includes DC utilisation ratings, but the permitted current depends on voltage, time constant and the number of poles connected in series. Always check the DC-1, DC-3 or DC-5 rating table before using it for DC load switching.
What accessories can be used with the BF1801A57560?
Compatible Lovato BF Series accessories include selected RF thermal overload relays, front and side auxiliary contact blocks, surge suppressors, mechanical interlocks and connection kits. Always check accessory compatibility against the latest Lovato documentation before installation.
