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TE Connectivity 1SNA111034R0400 MB10/12.SFL is a grey 10 mm² screw clamp DIN rail fuse terminal with a 5 × 20 mm screw-cap fuse holder and integrated 110–230 V AC/DC neon blown-fuse indicator.
£10.78
The TE Connectivity 1SNA111034R0400 is a grey MB10/12.SFL screw clamp fuse terminal block designed to combine conductor termination, fuse protection and fuse-failure indication within industrial electrical panels. Part of the established ENTRELEC SNA screw terminal range, it provides a compact DIN rail-mounted solution for protecting individual control, auxiliary and distribution circuits.
The MB10/12.SFL incorporates a screw-cap fuse holder for 5 × 20 mm cylindrical fuses together with an integrated neon blown-fuse indicator. The indicator is designed for approximately 110–230 V AC/DC circuits, providing a convenient visual indication when the protected fuse has operated and helping maintenance personnel locate a fault more quickly.
With a nominal conductor capacity of 10 mm², an IEC rated current of 10 A and rated voltage of 500 V, the 1SNA111034R0400 provides dependable fused termination for industrial installations. Its 12 mm width, screw connections and compatibility with TH35 and G32 mounting rails make it suitable for compact, serviceable control-panel assemblies.
Fused terminal blocks provide an efficient way to protect individual electrical circuits while retaining the organised modular layout of a DIN rail terminal assembly. The MB10/12.SFL integrates the fuse holder directly with the conductor connections, reducing the need for a separate panel-mounted fuse holder and simplifying circuit identification and maintenance.
The integrated neon indicator distinguishes this SFL version from the standard MB10/12.SF terminal. When used within its specified indicator voltage range, the lamp provides visual blown-fuse indication, helping maintenance engineers identify an interrupted protected circuit quickly during troubleshooting.
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| Number of Levels | 1 | |
|---|---|---|
| Product Series | TE SNA | |
| Connection | Screw clamp | |
| Terminal Type | Fuse | |
| Conductor Size | 10 mm² | |
| Colour | Grey | |
| Manufacturer | TE Connectivity | |
| Brand / family | ENTRELEC SNA | |
| Model | MB10/12.SFL | |
| Part number | 1SNA111034R0400 | |
| Alternative description | 123 IBVV 5X20 DIN1LA BLOCK | |
| Product type | Fused DIN rail terminal block | |
| Function | Fuse protection with blown-fuse indication | |
| Connection technology | Screw clamp | |
| Fuse holder | Threaded / screw-cap | |
| Fuse size | 5 × 20 mm | |
| Indicator type | Neon lamp | |
| Indicator voltage type | AC/DC | |
| Indicator supply voltage | 110–230 V | |
| Rated current | 10 A | |
| IEC rated voltage | 500 V | |
| Nominal conductor cross-section | 10 mm² | |
| Flexible conductor capacity without ferrule | 0.5–10 mm² | |
| Rigid conductor capacity | 0.5–16 mm² | |
| Number of levels | 1 | |
| Width / pitch | 12 mm | |
| Height | 58 mm | |
| Depth | 58.5 mm | |
| Dimensions (H × W × D) | 58 × 12 × 58.5 mm | |
| Colour | Grey | |
| Insulating body material | Thermoplastic | |
| Flammability rating | V0 | |
| Mounting type | TH35 / G32 DIN rail | |
| Operating temperature | -55 to +110 °C | |
| EAN | 3472591110340 | |
| Pack quantity | 25 |
The 1SNA111034R0400 is a fused DIN rail terminal block that combines screw conductor connections, replaceable fuse protection and visual blown-fuse indication for industrial electrical circuits.
The MB10/12.SFL has a screw-cap fuse holder designed for a 5 × 20 mm cylindrical fuse.
Yes. The MB10/12.SFL incorporates a neon blown-fuse indicator designed for approximately 110–230 V AC/DC circuits.
The terminal block has an IEC rated current of 10 A and a rated voltage of 500 V.
The terminal accommodates flexible conductors from 0.5–10 mm² without ferrules and rigid conductors from 0.5–16 mm².
TE Connectivity ENTRELEC SNA fuse terminal blocks combine dependable screw connection technology with accessible circuit protection, while indicator-equipped models such as the MB10/12.SFL support faster fault identification in industrial control and automation systems.
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