Schneider Electric LT4708M7S | TeSys LT47 Electronic Overcurrent Relay, 0.5-6A, 200-240V AC
Schneider Electric LT4708M7S TeSys LT47 electronic overload relay. 0.5-6A adjustable range, 200-240V AC supply, 1NO+1NC contacts, manual reset, DIN rail mount for motor protection.
Product Overview
The Schneider Electric LT4708M7S is an electronic overcurrent relay from the TeSys LT47 series. It provides precise motor protection (overload, phase failure, locked rotor) for small motors. This unit operates with external current transformers (CTs) for isolation and features an adjustable current setting range of 0.5–6 A, making it suitable for protecting pumps, fans, and conveyors in industrial control panels.
Technical Specifications (Electrical & Protection)
| Parameter | Specification |
| Manufacturer / Series | Schneider Electric / TeSys LT47 |
| Model / Part Number | LT4708M7S |
| Product Type | Electronic Overcurrent Relay (Motor Protection) |
| Rated Supply Voltage (Us) | 200 – 240 V AC (50/60 Hz) |
| Adjustable Current Setting (Ir) | 0.5 – 6 A (via front dial) |
| Protection Functions | Overload (OL), Phase Failure, Locked Rotor |
| Tripping Class / Time | Adjustable D-time (Start Delay): 0.5 – 30 s
Adjustable O-time (Overload): 0.3 – 10 s |
| Auxiliary Contacts | 1 NO + 1 NC (Signaling Circuit) |
| Rated Insulation Voltage (Ui) | 690 V AC (IEC 60947-4-1) |
Technical Specifications (Mechanical & Environmental)
| Parameter | Specification |
| Connection Method | Screw Clamp Terminals |
| Control Wiring Range | 1.0 – 2.5 mm² (AWG 18-14) |
| Mounting | DIN Rail (35 mm) |
| Dimensions (W×H×D) | Approx. 71 × 70.3 × 77.2 mm |
| IP Rating | IP20 |
| Reset Type | Manual (Push-button) |
| Operating Temperature | -25 °C to +60 °C |
| Standards | IEC 60947-4-1, UL 508, CSA C22.2 |
Key Features
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CT-Based Sensing: Uses external current transformers for safe, isolated current measurement.
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Triple Protection: Guards against overloads, phase loss, and mechanical jamming (locked rotor).
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Visual Diagnostics: LED indicators (Run/Trip) for quick status checking.
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Flexible Timing: Independent adjustment of start delay (D-time) and overload trip time (O-time).
Applications
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Small AC motor protection in conveyor systems
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Pump and fan motor control panels
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Machine tool motor protection circuits
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About ACH
Founded in 2012, ACH is a top-tier distributor of industrial automation products, supplying genuine devices from leading brands like ABB, P+F, E&H, AB, MTL to emerging markets worldwide. Our mission is to provide 100% Genuine products at the most competitive prices, helping customers reduce costs and strengthen their market position.
Frequently Ask & Questions
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Yes, all products from ACH are certified genuine OEM units. We acquire our inventory through official OEM channels and trusted third-party suppliers, ensuring every item is authentic and reliable.
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What is the warranty of goods?
One-year Warranty.
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