Lovato RF Thermal Overload Relays | Adjustable Motor Protection 0.4-250A

Lovato RF thermal overload relays protect motor circuits against sustained overload conditions. Adjustable current ranges allow the relay to be set to the motor nameplate current. The RF38, RF82, RF110, RF200 and RF420 families use different frames and mounting arrangements; the selected order code determines the compatible contactor series and reset features.

Features and applications

• Adjustable thermal overload setting for each motor rating
• RF38 models are intended for the compatible BF09-BF38 contactor range
• Reset and indication functions depend on the relay family
• Use separate coordinated short-circuit protection

Models and specifications

RF380063

0.40-0.63A / RF380063

Type of product

Thermal overload relays

Operational current [A]

0.4...0.63

Reset mode

Manual or automatic

For contactor series

BF

Type

Phase failure / Single-phase sensitive

Type of mounting

Direct mounting on BF09… BF38…

Manufacturer data for RF380063

RF380100

0.63-1A / RF380100

Type of product

Thermal overload relays

Operational current [A]

0.63...1

Reset mode

Manual or automatic

For contactor series

BF

Type

Phase failure / Single-phase sensitive

Type of mounting

Direct mounting on BF09… BF38…

Manufacturer data for RF380100

RF380160

1-1.6A / RF380160

Type of product

Thermal overload relays

Operational current [A]

1.0...1.6

Reset mode

Manual or automatic

For contactor series

BF

Type

Phase failure / Single-phase sensitive

Type of mounting

Direct mounting on BF09… BF38…

Manufacturer data for RF380160

RF380250

1.6-2.5A / RF380250

Type of product

Thermal overload relays

Operational current [A]

1.6...2.5

Reset mode

Manual or automatic

For contactor series

BF

Type

Phase failure / Single-phase sensitive

Type of mounting

Direct mounting on BF09… BF38…

Manufacturer data for RF380250

RF380400

2.5-4A / RF380400

Type of product

Thermal overload relays

Operational current [A]

2.5...4

Reset mode

Manual or automatic

For contactor series

BF

Type

Phase failure / Single-phase sensitive

Type of mounting

Direct mounting on BF09… BF38…

Manufacturer data for RF380400

RF380650

4-6.5A / RF380650

Type of product

Thermal overload relays

Operational current [A]

4...6.5

Reset mode

Manual or automatic

For contactor series

BF

Type

Phase failure / Single-phase sensitive

Type of mounting

Direct mounting on BF09… BF38…

Manufacturer data for RF380650

RF381000

6.3-10A / RF381000

Type of product

Thermal overload relays

Operational current [A]

6.3...10

Reset mode

Manual or automatic

For contactor series

BF

Type

Phase failure / Single-phase sensitive

Type of mounting

Direct mounting on BF09… BF38…

Manufacturer data for RF381000

RF381400

9-14A / RF381400

Type of product

Thermal overload relays

Operational current [A]

9...14

Reset mode

Manual or automatic

For contactor series

BF

Type

Phase failure / Single-phase sensitive

Type of mounting

Direct mounting on BF09… BF38…

Manufacturer data for RF381400

RF381800

13-18A / RF381800

Type of product

Thermal overload relays

Operational current [A]

13...18

Reset mode

Manual or automatic

For contactor series

BF

Type

Phase failure / Single-phase sensitive

Type of mounting

Direct mounting on BF09… BF38…

Manufacturer data for RF381800

RF382300

17-23A / RF382300

Type of product

Thermal overload relays

Operational current [A]

17...23

Reset mode

Manual or automatic

For contactor series

BF

Type

Phase failure / Single-phase sensitive

Type of mounting

Direct mounting on BF09… BF38…

Manufacturer data for RF382300

RF382500

20-25A / RF382500

Type of product

Thermal overload relays

Operational current [A]

20...25

Reset mode

Manual or automatic

For contactor series

BF

Type

Phase failure / Single-phase sensitive

Type of mounting

Direct mounting on BF09… BF38…

Manufacturer data for RF382500

RF383200

24-32A / RF383200

Type of product

Thermal overload relays

Operational current [A]

24...32

Reset mode

Manual or automatic

For contactor series

BF

Type

Phase failure / Single-phase sensitive

Type of mounting

Direct mounting on BF09… BF38…

Manufacturer data for RF383200

RF383800

32-38A / RF383800

Type of product

Thermal overload relays

Operational current [A]

32...38

Reset mode

Manual or automatic

For contactor series

BF

Type

Phase failure / Single-phase sensitive

Type of mounting

Direct mounting on BF09… BF38…

Manufacturer data for RF383800

RF824200

28-42A / RF824200

Type of product

Thermal overload relays

Operational current [A]

28...42

Reset mode

Manual

For contactor series

BF

Type

Phase failure / Single-phase sensitive

Type of mounting

Direct mounting on BF40... BF94…

Manufacturer data for RF824200

RF825000

35-50A / RF825000

Type of product

Thermal overload relays

Operational current [A]

35...50

Reset mode

Manual

For contactor series

BF

Type

Phase failure / Single-phase sensitive

Type of mounting

Direct mounting on BF40... BF94…

Manufacturer data for RF825000

RF826500

46-65A / RF826500

Type of product

Thermal overload relays

Operational current [A]

46...65

Reset mode

Manual

For contactor series

BF

Type

Phase failure / Single-phase sensitive

Type of mounting

Direct mounting on BF40... BF94…

Manufacturer data for RF826500

RF828200

60-82A / RF828200

Type of product

Thermal overload relays

Operational current [A]

60...82

Reset mode

Manual

For contactor series

BF

Type

Phase failure / Single-phase sensitive

Manufacturer data for RF828200

RF110095

70-95A / RF110095

Type of product

Thermal overload relays

Operational current [A]

70...95

Reset mode

Manual

For contactor series

BF

Type

Phase failure / Single-phase sensitive

Manufacturer data for RF110095

RF110110

90-110A / RF110110

Type of product

Thermal overload relays

Operational current [A]

90...110

Reset mode

Manual

For contactor series

BF

Type

Phase failure / Single-phase sensitive

Type of mounting

Direct mounting on BF95... BF150…

Manufacturer data for RF110110

RF200100

60-100A / RF200100

Type of product

Thermal overload relays

Operational current [A]

60...100

Reset mode

Manual or automatic

For contactor series

B

Type

Phase failure / Single-phase sensitive

Type of mounting

Screw

Manufacturer data for RF200100

RF200150

90-150A / RF200150

Type of product

Thermal overload relays

Operational current [A]

90...150

Reset mode

Manual or automatic

For contactor series

B

Type

Phase failure / Single-phase sensitive

Type of mounting

Screw

Manufacturer data for RF200150

RF200200

120-200A / RF200200

Type of product

Thermal overload relays

Operational current [A]

120...200

Reset mode

Manual or automatic

For contactor series

B

Type

Phase failure / Single-phase sensitive

Type of mounting

Screw

Manufacturer data for RF200200

RF420250

150-250A / RF420250

Type of product

Thermal overload relays

Operational current [A]

150...250

Reset mode

Manual or automatic

For contactor series

B

Type

Phase failure / Single-phase sensitive

Type of mounting

Screw

Manufacturer data for RF420250

Selection and installation

Choose a range that contains the motor full-load current and verify the contactor mounting. An overload relay does not replace a short-circuit protective device.

Available from Spark in Egypt for control-panel assembly, maintenance and electrical projects, with delivery to Cairo, Giza, Alexandria and other governorates. Match the order code, electrical ratings and compatible equipment before ordering.