Elmeasure MCCBs — E3U/E4U thermal magnetic (IP40)
MCCBs — E3U/E4U thermal magnetic from Elmeasure, rated 63–400 A at 415 V, 690 V, protection IP40, conforming to IS/IEC 60947-2. 24 part numbers listed — supplied by Yash Enterprise, an authorized Elmeasure distributor in Mumbai.

Key features
- Rated insulation voltage Ui 800 V AC, impulse withstand 8 kV
- Utilisation category A
- Operating temperature −5 °C to +55 °C
- IP40 from the front
- Ics 100% of Icu
- Magnetic fixed (9 × In)
- Mechanical life 15,000 operations, electrical life 5,000 operations
- Breaking capacity Icu 18 kA at 415 V AC (32 kA at 240 V AC)
All part numbers (24)
Ampere, poles, voltage and position for every variant in this range. Parts are supplied on request. We confirm availability and price within 24 hours.
How the versions in this range differ
| Listed in the catalogue | MCCB E3U 100B · IP403 parts | MCCB E4U 100B · IP403 parts | MCCB E3U 125B · IP401 parts | MCCB E4U 125B · IP401 parts | MCCB E3U 250C · IP403 parts | MCCB E3U 250D · IP403 parts | MCCB E4U 250C · IP403 parts | MCCB E4U 250D · IP403 parts | MCCB E3U 400N · IP402 parts | MCCB E4U 400N · IP402 parts |
|---|---|---|---|---|---|---|---|---|---|---|
| Ics 100% of Icu | ● | ● | ● | ● | ● | ● | ||||
| Magnetic fixed (9 × In) | ● | ● | ● | ● | ● | ● | ||||
| Breaking capacity Icu 18 kA at 415 V AC (32 kA at 240 V AC) | ● | ● | ● | ● | ||||||
| Ics 50% of Icu | ● | ● | ● | ● | ||||||
| Mechanical life 15,000 operations, electrical life 5,000 operations | ● | ● | ● | ● | ||||||
| Mechanical life 40,000 operations, electrical life 8,000 operations | ● | ● | ● | ● | ||||||
| Terminal capacity: cables with lug 120 mm2 | ● | ● | ● | ● | ||||||
| Terminal capacity: cables with lug 35 mm2 | ● | ● | ● | ● | ||||||
| Thermal magnetic MCCB, adjustable overload setting 0.8–1.0 × In (setting 125–160 A) | ● | ● | ● | ● | ||||||
| Thermal magnetic MCCB, adjustable overload setting 0.8–1.0 × In (setting 160–200 A) | ● | ● | ● | ● |
● = listed in the manufacturer catalogue for that version; a blank cell means it is not listed there — ask us if you need to confirm a feature. Rating and IP differences are shown in each heading and in the table below.
| Part no. | Ampere | Poles | Voltage | Quote | |||
|---|---|---|---|---|---|---|---|
| MCCB E3U 100B · IP40 3 | |||||||
| E3U100B0063 | 63 A | 3 | 415 V | ||||
| E3U100B0080 | 80 A | 3 | 415 V | ||||
| E3U100B0100 | 100 A | 3 | 415 V | ||||
| MCCB E4U 100B · IP40 3 | |||||||
| E4U100B0063 | 63 A | 4 | 415 V | ||||
| E4U100B0080 | 80 A | 4 | 415 V | ||||
| E4U100B0100 | 100 A | 4 | 415 V | ||||
| MCCB E3U 125B · IP40 1 | |||||||
| E3U125B0125 | 125 A | 3 | 415 V | ||||
| MCCB E4U 125B · IP40 1 | |||||||
| E4U125B0125 | 125 A | 4 | 415 V | ||||
| MCCB E3U 250C · IP40 3 | |||||||
| E3U250C0160 | 160 A | 3 | 415 V | ||||
| E3U250C0200 | 200 A | 3 | 415 V | ||||
| E3U250C0250 | 250 A | 3 | 415 V | ||||
| MCCB E3U 250D · IP40 3 | |||||||
| E3U250D0160 | 160 A | 3 | 415 V | ||||
| E3U250D0200 | 200 A | 3 | 415 V | ||||
| E3U250D0250 | 250 A | 3 | 415 V | ||||
| MCCB E4U 250C · IP40 3 | |||||||
| E4U250C0160 | 160 A | 4 | 415 V | ||||
| E4U250C0200 | 200 A | 4 | 415 V | ||||
| E4U250C0250 | 250 A | 4 | 415 V | ||||
| MCCB E4U 250D · IP40 3 | |||||||
| E4U250D0160 | 160 A | 4 | 415 V | ||||
| E4U250D0200 | 200 A | 4 | 415 V | ||||
| E4U250D0250 | 250 A | 4 | 415 V | ||||
| MCCB E3U 400N · IP40 2 | |||||||
| E3U400N0320 | 320 A | 3 | 690 V | ||||
| E3U400N0400 | 400 A | 3 | 690 V | ||||
| MCCB E4U 400N · IP40 2 | |||||||
| E4U400N0320 | 320 A | 4 | 690 V | ||||
| E4U400N0400 | 400 A | 4 | 690 V | ||||
Not sure which part you need? Send us the equipment and rating on WhatsApp and we will recommend the exact part.
No part numbers match those filters.
Common questions
What does the IP40 rating mean?
IP40 is the enclosure protection class (IEC 60529): the first digit covers solid objects and dust, the second covers water.
How do I order Elmeasure MCCBs?
Pick the part from the list, then request a quotation. There is no minimum order — single pieces and project quantities are quoted the same way, and we confirm availability and price within 24 hours.
Are these genuine Elmeasure products?
Yes. Yash Enterprise is an authorized Elmeasure distributor; every part is sourced through the principal brand, with the manufacturer's standard warranty passed through.


