Types of Molded Case Circuit Breakers: MCCB Guide for Engineers
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Schneider Electric GoPact MCCB 200, 4P, 200 A, 25 kA Icu, TM-D adjustable trip unit.
The Schneider Electric G20B4A200 is a 4-pole GoPact MCCB 200 moulded case circuit breaker rated 200 A, built on the 200 A frame with an ultimate breaking capacity (Icu) of 25 kA at 380/415 V AC. Its TM-D thermal-magnetic trip unit gives adjustable long-time overload protection (L) and instantaneous short-circuit protection (I) fixed at 12 x In (2400 A), fixed-mounted to a backplate for distribution-board incomers and feeders.
The adjustable Ir range (adjustable from 0.7 x In to 1 x In (140-200 A)) lets this 200 A breaker be tuned down for loads sized below the nominal 200 A frame rating, and the instantaneous pick-up is fixed at 12 x In so the magnetic trip scales with the chosen thermal setting. Unlike the 125 A frame, this 200 A frame rates Ics at 100% of Icu (25 kA of 25 kA at 380/415 V AC), so it can clear its full fault current repeatedly without a derated service rating — a relevant factor for sub-mains where more than one fault clearance may occur before maintenance. The fourth pole trips the neutral at the same Ir setting as the phases (4P/4D), so the breaker protects a 3-phase-plus-neutral feeder without a separate neutral device.
| Range of product | GoPact MCCB |
|---|---|
| Product or component type | Circuit breaker |
| Product name | GoPact MCCB 200 |
| Device application | Distribution |
| Poles description | 4P |
| Protected poles description | 4D |
| Neutral position | Left |
| [In] rated current | 200 A at 40 °C |
| [Ue] rated operational voltage | 415 V AC 50/60 Hz conforming to EN/IEC 60947-2 |
| Suitability for isolation | Yes conforming to EN/IEC 60947-2 |
| Utilisation category | Category A |
| [Icu] rated ultimate short-circuit breaking capacity | 25 kA Icu at 380/415 V AC 50/60 Hz conforming to EN/IEC 60947-2, 36 kA Icu at 220/230 V AC 50/60 Hz conforming to EN/IEC 60947-2 |
| Performance level | B 25 kA 380/415 V AC |
| Trip unit name | TM-D |
| Trip unit technology | Thermal-magnetic |
| Trip unit protection functions | LI |
| Control type | Toggle |
| Circuit breaker mounting mode | Fixed |
| [Ui] rated insulation voltage | 440 V AC conforming to EN/IEC 60947-2 |
|---|---|
| [Uimp] rated impulse withstand voltage | 6 kV conforming to EN/IEC 60947-2 |
| [Ics] rated service short-circuit breaking capacity | 25 kA at 380/415 V AC 50/60 Hz conforming to EN/IEC 60947-2, 36 kA at 220/230 V AC 50/60 Hz conforming to EN/IEC 60947-2 |
| Mechanical durability | 20000 cycles |
| Electrical durability | 6000 cycles at 415 V In |
| Power dissipation per pole | 24 W |
| Mounting support | Backplate |
| Mounting position | Horizontal and vertical, Flat on the back |
| Upside connection | Front |
| Downside connection | Front |
| Connection terminals | screw terminals |
| Connection pitch | 25 mm |
| Protection type | L : for overload protection (thermal), I : for short-circuit protection (magnetic) |
| Trip unit rating | 200 A at 40 °C |
| Long-time pick-up adjustment type Ir (thermal protection) | Adjustable |
| [Ir] long-time protection pick-up adjustment range | 0.7...1 x In |
| Long-time protection delay adjustment type tr | Fixed |
| Instantaneous protection pick-up adjustment type Ii | Fixed |
| [Ii] instantaneous protection pick-up adjustment range | 12 x In |
| Neutral protection settings | 1 x Ir (4D) |
| Width (W) | 100 mm |
| Height (H) | 130 mm |
| Depth (D) | 60 mm |
| Net weight | 1.1 kg |
| Colour | Grey (RAL 7035) |
| Standards | EN/IEC 60947-1, EN/IEC 60947-2, EN/IEC 60947-2 Annex H |
|---|---|
| Overvoltage category | III |
| Pollution degree | 3 conforming to IEC 60664-1 |
| IP degree of protection | IP20 conforming to IEC 60529 |
| Ambient air temperature for operation | -20…55 °C |
| Ambient air temperature for storage | -35…85 °C |
| Operating altitude | 0...2000 m without derating, 2000...5000 m with derating |
| Part number | G20B4A200 |
|---|---|
| Brand | Schneider Electric |
| Condition | New, factory sealed |
| Source | Schneider Electric and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| Warranty (in months) | 18 |
|---|
| Unit Type of Package 1 | PCE |
|---|---|
| Number of Units in Package 1 | 1 |
| Package 1 Height | 13.6 cm |
| Package 1 Width | 11 cm |
| Package 1 Length | 13.9 cm |
| Package 1 Weight | 1650 g |
| Unit Type of Package 2 | S02 |
| Number of Units in Package 2 | 6 |
| Package 2 Height | 15 cm |
| Package 2 Width | 30 cm |
| Package 2 Length | 40 cm |
| Package 2 Weight | 10.215 kg |
| Unit Type of Package 3 | P06 |
| Number of Units in Package 3 | 96 |
| Package 3 Height | 75 cm |
| Package 3 Width | 60 cm |
| Package 3 Length | 80 cm |
| Package 3 Weight | 171.94 kg |
| Shipping weight | 1.1 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 30 Oct 2026
No documents are on file for this part yet.
Ask us for the datasheetThe rated current of G20B4A200 is 200 A.
The rated operational voltage of G20B4A200 is 415 V AC.
The tariff (HS) code on file for G20B4A200 is 85362090.
G20B4A200 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
Compare MCCB types including thermal-magnetic, electronic trip, motor protection, current-limiting, and DC-rated units for industrial use. Shop at Stoklink.
Select the right MCCB with our engineer checklist covering IEC 60947-2, sizing, breaking capacity, trip units, and derating for industry. Shop at Stoklink.
IEC 60947-2 defines MCCB ratings Icu, Ics, Icw, utilization categories A and B, and type tests for low-voltage circuit breakers up to 1000V. Shop...