ABB SH204 4-Pole Miniature Circuit Breaker MCB with 10 kA Breaking Capacity and 4P Configuration

SH204 ABB Miniature Circuit Breaker MCB High performance highly secure circuit protection solutions

Product Overview

ABB SH204 is a 4-pole Miniature Circuit Breaker (MCB) in the ABB S200 series, specifically designed for overload and short-circuit protection in residential, commercial and light industrial power distribution systems. This product adopts a thermal-magnetic tripping mechanism, featuring high breaking capacity, compact structure and outstanding reliability. It is widely used in terminal distribution boxes, control cabinets, building automation systems and OEM equipment, providing comprehensive electrical safety protection for personnel and equipment.

Key features

✅ high judgment ability

The rated operating short-circuit breaking capacity is as high as 10 kA (400 V AC), meeting the demands of most civil and light industrial scenarios.
✅ thermal magnetic double protection

Thermal trip: The bimetallic strip senses overload current and acts with a delay to protect the cable from long-term overheating damage
Magnetic trip: The electromagnetic coil responds instantaneously to the short-circuit current, quickly cutting off the fault and preventing equipment damage
✅ modularized & space-saving

The width is only 4 × 18mm = 72mm (4 poles)
Standard DIN rail mounting (35mm), compatible with all mainstream distribution boxes
✅ security compliance certification

Compliant with IEC/EN 60898-1 (for household and similar use) and IEC/EN 60947-2 (for industrial use)
Passed international certifications such as CE, CCC, TUV, UL Recognized (for some models)
✅ is convenient and reliable to operate

A clear ON/OFF indicator window
The handle has a moderate operating force and supports padlock locking (optional accessories are required)
A variety of accessories can be optionally equipped, such as auxiliary contacts, alarm contacts, shunt trip units, etc

Basic parameters
Model SH204
Series ABB S200 series miniature circuit breakers
Number of poles: 4P (four poles)
Rated current (In) 0.5-63A (Multiple specifications available, such as 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A)
Rated operating voltage (Ue) 230/400 V AC (50/60 Hz)
Rated insulation voltage (Ui) : 500 V AC
The tripping characteristics are available in types B, C and D (type C is the most common).
• Type B: 3-5 In (Lighting, electronic equipment)
• Type C: 5-10 In (General load, such as motors, sockets)
• Type D: 10-20 In (High starting current equipment)
Rated short-circuit breaking capacity (Icn/Ics) : 10 kA @ 400 V AC
The mechanical life is ≥ 20,000 operations
Electrical life ≥ 10,000 cycles (at rated current)
Installation method: 35mm DIN rail (compliant with EN 60715)

Typical application scenarios
Industrial automation
It is used for the starting, stopping and protection of medium-voltage motors, such as water pumps, fans, compressors and other equipment.
Power transmission and distribution
Load switching and protection in scenarios such as medium-voltage switch cabinets and substations.
Energy and infrastructure
Auxiliary control of photovoltaic inverters, pumping stations of water treatment plants, and backup power switching systems.
OEM equipment integration
As a standard component embedded in the OEM control cabinet, it enhances the reliability of the entire machine.

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