Brand: Lovato Electric

Lovato SM1P1000 6.3-10 A Motor Protection Circuit Breaker

Name: Lovato SM1P1000 Motor Protection Breaker – Brochure & Quote
Brand: Lovato Electric
SKU: SM1P1000

Description

Thermal-magnetic motor protection in one 45 mm device

The SM1P1000 is a three-pole motor protection circuit breaker from the Lovato Electric SM series. It combines an adjustable thermal overload release, a fixed magnetic short-circuit release and phase-failure detection in one device, so it can be placed directly upstream of a contactor to build a direct-on-line starter without a separate fuse or overload relay.

The thermal setting covers 6.3 to 10 A, which fits three-phase 400 V motors of a few kilowatts; always set the dial from the nameplate current rather than from the power rating. The magnetic release trips at 13 times the rated current, which is 130 A on this model, as printed on the front of the device. It is operated by a red OFF push button and a black ON push button and fits a 35 mm DIN rail in a modular panel.

Technical specifications

Parameter	Specification
Type	Motor protection circuit breaker SM1P, order code SM1P1000
Poles	3
Thermal release	Adjustable 6.3 to 10 A (rated current In = 10 A); tripping class 10A
Magnetic release	Fixed at 13 x In (130 A)
Phase failure detection	Yes
Rated insulation voltage Ui	690 V; impulse withstand 6 kV
Rated frequency	50/60 Hz
Ultimate breaking capacity Icu (AC)	100 kA at 230 V, 100 kA at 400 V, 25 kA at 440 V, 25 kA at 500 V, 3 kA at 690 V
Service breaking capacity Ics (AC)	100 kA at 230 V and 400 V, 13 kA at 440 V and 500 V, 3 kA at 690 V
Power dissipation per pole	1.03 to 2.61 W
Utilisation category	A
Mechanical / electrical life	100,000 / 100,000 operations
Terminals	Screw, torque 2.5 to 3 Nm; up to 2 wires; 1 to 10 mm2 flexible, with or without lug; PH2 screwdriver; 10 mm stripping
Degree of protection	IP20 on the front, per IEC/EN 60529 for the power terminals
Operating / storage temperature	-20 to +60 degC / -50 to +80 degC; temperature compensation -20 to +50 degC
Maximum altitude	3000 m
Mounting	Screw or 35 mm DIN rail; vertical plane normal, any position allowed
Weight	350 g
UL motor ratings (3-phase)	2 HP at 200-208 V, 3 HP at 220-240 V, 5 HP at 440-480 V, 7.5 HP at 550-600 V; 30 kA at 240, 480 and 600 V with 100 A class J protection
Approvals and standards	UL, CB, LOVAG; IEC/EN 60947 series; EU and UKCA declarations of conformity

Applying and combining the SM1P

Lovato offers 16 adjustment ranges from 0.1 A to 40 A in a device about 45 mm wide, so the right model follows the motor full-load current on the nameplate. The thermal dial is set to that current. For the SM1P1000 the dial range is 6.3 to 10 A.

Rigid connection kits link the breaker to a BF09 to BF25 contactor, for example the BF0910A230, to make a compact starter. Auxiliary contacts, indicator contacts, undervoltage and shunt trips, enclosures and door-coupling handles are accessories in the same series.

What to confirm before ordering

Check the motor full-load current, the supply voltage and prospective short-circuit current against the 400 V figures above, and whether the starter will be mounted in an enclosure or on a DIN rail. Note that the breaking capacity falls sharply above 400 V, so applications at 440 V and higher need a closer check against the breaking table. For another make of motor-protective breaker, see the Eaton PKZM0-1,6/AK, or browse the circuit breakers category.

How the Lovato SM1P1000 works

The breaker has two trip systems. The thermal release follows the motor current over time and trips on a long overload. The magnetic release trips at once on a short circuit. It also trips if one phase is lost. Set the dial to the nameplate current of the motor.

Where the SM1P1000 is used

Direct-on-line motor starters
Pump and fan motors
Conveyor drives
Machine control panels
Compact modular switchboards

Selection checklist for the SM1P1000

Motor current within 6.3 to 10 A
Three-phase supply voltage
Short-circuit level at the panel
Contactor to be fitted below
DIN rail space of 45 mm
Wire size at the terminals
Ambient temperature in the panel
Tripping class 10A

Installation, commissioning and maintenance notes for the SM1P1000

Snap the breaker onto the DIN rail above the contactor. Tighten the terminals to 2.5 to 3 Nm. Set the thermal dial to the motor nameplate current. Operate the ON and OFF buttons and test the motor start. Check the terminals at each panel service.

Requesting a quotation for the Lovato SM1P1000

Please send the motor current, the voltage and the quantity. Seven Star LLC serves industrial customers in Oman and the GCC and replies with a quotation based on the information provided.

SM1P1000 thermal range

The thermal release is adjustable from 6.3 to 10 A.

SM1P1000 magnetic trip

The magnetic release is fixed at 13 times the rated current, which is 130 A.

SM1P1000 breaking capacity

The ultimate breaking capacity is 100 kA at 400 V.

SM1P1000 insulation voltage

The rated insulation voltage is 690 V.

SM1P1000 operating life

The mechanical and electrical life is 100,000 operations each.

SM1P1000 terminals

The screw terminals take up to two wires of 1 to 10 mm2.

SM1P1000 temperature range

The operating range is minus 20 to plus 60 degrees C.

SM1P1000 weight

The breaker weighs 350 g.

Breaker records for the SM1P1000

Record the dial setting, the motor and the date of each trip.

Choosing the right SM1P1000 setting

Set the dial from the nameplate current of the motor and not from its power rating.

SM1P1000 poles

The breaker has three poles for three-phase motors.

SM1P1000 mounting

It fits a 35 mm DIN rail and can also be fixed with screws.

SM1P1000 operation

A red OFF push button and a black ON push button operate the breaker.

SM1P1000 phase failure

The breaker detects the loss of a phase.

Documents and quotation

The Lovato SM series motor protection circuit breaker leaflet (document PD115, 2016 edition) is attached and shows the complete range, accessories and connection kits. The electrical data in the table comes from the Lovato catalogue page for SM1P1000. Send the order code, quantity and delivery location through the quotation form for availability from Seven Star LLC.

Datasheets & Documents

Brochure Lovato SM series motor protection circuit breakers leaflet (EN, PD115, 2016) Download

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About brand

Lovato Electric is an Italian manufacturer of low voltage electrical devices for industrial applications, founded in 1922 in Bergamo and still family owned. Seven Star LLC, an independent supplier in Muscat, quotes Lovato Electric contactors, motor protection circuit breakers, generator controllers and power factor controllers for control panels, motor starters and stand-by power systems.

Motor control, protection and energy management

The Lovato Electric catalogue covers contactors and motor protection circuit breakers, thermal overload relays, soft starters, pushbuttons and signalling, switch disconnectors, time and monitoring relays, energy meters, power factor controllers and engine and generator controllers. Each catalogue page links its instruction sheet, leaflet and declarations of conformity.

Ordering Lovato Electric products

Send the full order code, coil or supply voltage, quantity and any approval needed for the project. With the order code, the matching version can be checked against its documentation before a quotation is issued.