S250LE RCBO

About the S250LE RCBO

The S250LE RCBO is part of the ELEHPD RCBO range. S250LE RCBO from the ELEHPD RCBO range. 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 RCBO

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

S250LE 2P S250LE 4P

S250LE Earth Leakage Circuit Breaker with Over Current Protection

Application

S250LE RCBO is suitable for the circuit of 50/60Hz, rated voltage 230/400V, and rated current up to 100A. It has the earth leakage, overload , short circuit protect function. It can also add over voltage protect function. It is mainly used in building illumination and electrical distribution system.

Specifications

Number of Poles	1P+N, 2P, 3P+N, 4P
Rated Current (A)	40, 50, 63, 80, 100
Rated Residual Operating Current ()(mA)	30, 50, 100, 200, 300
Rated Residual Non-Operating Current ()(mA)	≤0.5
Rated Voltage (V)	AC 230/400
Residual Current Off-time	≤0.1S
Short Circuit Capacity (Icu)	3000A
Endurance	≥4000
Tripping Type	C, D
Protection Degree	IP20

Frequently asked questions about the S250LE RCBO

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.