LC1-D/New AC Contactor

About the LC1-D/New AC Contactor

The LC1-D/New AC Contactor is part of the ELEHPD AC Contactor range. Suppressor modules (d.c.and low consumption contactors have built-in suppression limiting diode as standard) ELEHPD manufactures and exports low voltage electrical products from Yueqing, Zhejiang, China, supplying distributors, panel builders, M&E contractors and OEM buyers worldwide.

Typical applications

Consumer units and distribution boards in residential buildings
Commercial and retail fit-outs where selective protection is required
Industrial control panels and machine-builder assemblies
Solar PV, EV charger and battery-storage sub-circuits
OEM equipment where a DIN-rail protective device is specified

How to specify the right AC Contactor

Match the rated current to the circuit design current, then check the cable ampacity
Pick the trip curve to the load: B for resistive/lighting, C for general mixed loads, D for motors and transformers
Confirm the breaking capacity meets the prospective short-circuit current at the point of installation
Verify the pole configuration (1P, 1P+N, 2P, 3P, 3P+N, 4P) against the system earthing arrangement

Specifications

LC1-D/New AC CONTACTOR

SPECIFICATIONS

Rated operational current le max AC-3 (Ue≤440V)      9A      12A     18A      25A 32A     40A 50A

le AC-1(0≤60℃)      65A      80A     90A     115A 125A    150A 200A

Rated operational voltage 1000V on ~ supply, 690V on supply

Number of poles 3 4 3 3 4 3 4 3 3 4 3

Rated operational power  in AC-3 220/240V 11KW 15KW 18.5KW 22KW 25KW 30KW 40KW

380/400V 18.5KW 22KW 30KW 37KW 45KW 55KW 75KW

415/440V 22KW 25/30KW 37KW 45KW 45KW 59KW 80KW

500V 22KW 30KW 37KW 55KW 55KW 75KW 90KW

660/690V 30KW 33KW 37KW 45KW 45KW 80KW 100KW

1000V 22KW 30KW 37KW 45KW 45KW 75KW 90KW

Auxiliary contacts range comprising up to 4 N/O instantaneous, upto 1N/O +1N/C time delay and up to 2N/O or N/C protected contacts and 2 screen continuity terminals

Compatible manual or auto thermal overload relays class 10A 17...50A 17...70A 17...50A 17...80A 17...104A 60...150A 607...150A

class 20A 17...40A 17...65A 17...70A 17...80A 60...150A 60...150A

Suppressor modules   (d.c.and low   consumption contactors have built-in suppression limiting diode as standard)
Varistor ● ● ● ● ● ● ● -

Diode ● ● ● ● ● ● - -

RC circuit ● ● ● ● ● ● ● ●

Bidirectional peak ● ● ● ● ● ● - -

     Interfaces Relay ● ● ● ● ● ● ● ● ●

Relay+override function ● ● ● ● ● ● ● ● ●

Soild state ● ● ● ● ● ● ● ●
-

   Contactor type    references ~or--3P LC1-D40 LC1-D50 LC1-D65 LC1-D80 LC1-D95 LC1-D115 LC1-D150

~4-P LC1-D40 - LC1-D65 LC1-D80 - LC1-D115 -

--4P LC1-D40 - LC1-D65 LC1-D80 - LC1-D115 -

   Reversing contactor type references ~3P LC1-D40 LC1-D50 LC1-D65 LC1-D80 LC1-D95 LC1-D115 LC1-D150

--3P - - - - - - -

~4P LC1-D40 - LC1-D65 LC1-D80 - LC1-D115 -

--4P - - - - - - -

Contactor type references ~or--3P LC1-D09 LC1-D12 LC1-D18 LC1-D25 LC1-D32 LC1-D38

~4-P - LC1-D12 - LC1-D25 - -

--4P - LC1-D12 - LC1-D25 - -

   Reversing contactor type references
~3P LC1-D09 LC1-D12 LC1-D18 LC1-D25 LC1-D32 LC1-D38

--3P LC1-D09 LC1-D12 LC1-D18 LC1-D25 LC1-D32 LC1-D38

~4P - LC1-D12 - LC1-D25 - -

--4P - LC1-D12 - LC1-D25 -

Frequently asked questions about the LC1-D/New AC Contactor

What is the difference between an MCB and an MCCB?

An MCB (miniature circuit breaker) is a DIN-rail device for final circuits, typically rated up to 125 A with a fixed trip curve. An MCCB (moulded case circuit breaker) is a larger device for main and sub-main distribution, usually 16 A to 1600 A, with adjustable thermal and magnetic settings and a higher breaking capacity. Use an MCB for branch circuits and an MCCB where you need adjustability or higher fault ratings.

How do I choose between a Type B, C and D trip curve?

Type B trips between 3 and 5 times rated current and suits resistive loads such as lighting and heaters. Type C trips between 5 and 10 times and is the general-purpose choice for socket circuits and mixed loads. Type D trips between 10 and 20 times and is used for loads with high inrush, such as motors, transformers and large LED drivers.

What does 6 kA breaking capacity mean in practice?

It is the maximum prospective short-circuit current the device can safely interrupt. 6 kA covers most domestic and light commercial installations. Where the transformer is close and the fault level is higher, specify 10 kA devices so the breaker still clears the fault without damage.

Can these devices be supplied with your own brand?

Yes. OEM branding, buyer-specific labels, custom carton print and private-model numbering can be arranged on qualified order volumes.