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Schurter FMBC LL Two-Stage Three-Phase Low Leakage EMC Filter
Chassis Mount | 520 VAC | 7–180 A | 2-Stage | Low Leakage | RCD Compatible
Schurter FMBC LL Two-Stage Low Leakage EMC Filter Overview
The Schurter FMBC LL is a two-stage three-phase EMC filter for three-wire systems (without neutral), rated 7–180 A at 520 VAC from -25°C to 100°C. The defining characteristic of the LL series is its low leakage current, which makes it compatible with residual current devices (RCDs) in installations where standard two-stage filters — which typically exceed RCD trip thresholds — would cause nuisance tripping. Metal housing with screw clamp terminals throughout.
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Features
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- Two-stage topology; low leakage current — compatible with RCDs
- 3-phase, without neutral; 520 VAC
- Leakage current: 4.3 mA (7–55 A) and 17.5–19.3 mA (75–180 A) @ 400 VAC, 50 Hz
- Metal housing; screw clamp terminals; IP20
- VDE certificate 40040983; UL file E72928
- IEC/UL 62368-1 application standard
- CE, UKCA, RoHS, China RoHS, REACH compliant
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Compatible Applications
For two-stage three-phase filtering in installations with residual current protection devices:
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- Industrial drives and inverters installed with RCD protection
- Renewable energy inverter assemblies
- Process machinery in facilities with RCD-protected circuits
- Three-phase power conversion in safety-critical environments
- Building-integrated industrial equipment
FMBC LL Technical Specifications
Technical specifications
| Parameter | Value |
|---|---|
| Rated Voltage | 520 VAC |
| Rated Current | 7–180 A |
| Frequency | 50/60 Hz |
| Filter Stages | 2 |
| Phase Configuration | 3-phase, without neutral |
| Operating Temperature | -25°C to 100°C |
| Mounting | Chassis screw |
| Terminal | Screw clamps |
| Housing Material | Metal |
| IP Rating | IP20 |
| Leakage Current (7–55 A) | 4.3 mA @ 400 VAC, 50 Hz |
| Leakage Current (75–100 A) | 17.5 mA @ 400 VAC, 50 Hz |
| Leakage Current (130–180 A) | 19.3 mA @ 400 VAC, 50 Hz |
| RCD Compatibility | Yes (low leakage design) |
| VDE Certificate | 40040983 |
| UL File | E72928 |
| Application Standards | IEC/UL 62368-1 |
| Compliances | CE, UKCA, RoHS, China RoHS, REACH |
FMBC LL Variants & Order Codes
|
Order No. |
Current (A) |
Voltage (VAC) |
Leakage (mA) |
Housing |
Weight (kg) |
Pkg |
|---|---|---|---|---|---|---|
|
FMBC-R91U-0712 |
7 |
520 |
4.3 |
1U |
0.75 |
3 |
|
FMBC-R91C-1612 |
16 |
520 |
4.3 |
1C |
1.2 |
3 |
|
FMBC-R91Q-3012 |
30 |
520 |
4.3 |
1Q |
1.8 |
4 |
|
FMBC-R91R-4212 |
42 |
520 |
4.3 |
1R |
1.8 |
3 |
|
FMBC-R91S-5512 |
55 |
520 |
4.3 |
1S |
2.4 |
2 |
|
FMBC-R91F-7512 |
75 |
520 |
17.5 |
1F |
4.1 |
1 |
|
FMBC-R91G-J012 |
100 |
520 |
17.5 |
1G |
5.4 |
1 |
|
FMBC-R91G-J312 |
130 |
520 |
19.3 |
1G |
4.6 |
1 |
|
FMBC-R91V-J812 |
180 |
520 |
19.3 |
1V |
9.4 |
1 |
Downloads & Documentation
FMBC LL Datasheet
Buy Schurter FMBC LL From the Official UK Distributor
Dalroad is the official UK distributor for Schurter. We hold reliable stock of their EMC filter range, and our team supports design engineers through component selection, system integration and supply planning for industrial power electronics, motor drive and power conversion applications. Submit an enquiry to book a call with our technical experts or request a sample.