Over Load Relays

Magnum offers reliable Thermal Over Load Relays. All relays are trip tested and well set for best performance.

Overview

4 Models, One Auto-Reset Option

The Over Load Relay range spans MaK-1 (2P/4P), MaC-2 (4 Pole), MaU (3 Pole) and MaEX (2 Pole) — all Thermal Overload Relays with 1NO + 1NC auxiliary contacts, contactor mounted. MaEX is the only model with auto reset; the rest are manual. Every model is fully detailed in the technical comparison table below.

Available Models

Technical Comparison

Compare All Models

Full specification matrix across Electrical Specifications, Mechanical Details, Protection Features and General Ratings.

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Overload Relays MaK-1 2P/4P MaC-2 4 Pole MaU - 3Pole MaEX - 2Pole (Auto Reset)
RSK/RTK RTDC RTU RSX
Product TypeThermal Overload RelayThermal Overload RelayThermal Overload RelayThermal Overload Relay
Reset TypeManualManualManualAuto re-set
MountingContactor MountedContactor MountedContactor MountedContactor Mounted
Electrical Specifications
Current Setting Range
Rated Operational Voltage (Ue)Up to 690V ACUp to 690V ACUp to 690V ACUp to 690V AC
Rated Insulation Voltage (Ui)690V690V690V690V
Frequency50Hz50Hz50Hz50Hz
Auxiliary Contacts1NO + 1NC1NO + 1NC1NO + 1NC1NO + 1NC
Mechanical Details
Dimensions (L × W × H)85*55*8586*55*85105*90*9560*55*65
Housing materialBakeliteDMCBakeliteBakelite
ColourBlackWhiteBlackBlack
Terminal TypeScrew ClampScrew ClampScrew ClampScrew Clamp
Mounting TypeDirectDirectDirectDirect
Protection Features
Overload ProtectionYesYesYesYes
Ambient Temperature-5°C to +55°C-5°C to +55°C-5°C to +55°C-5°C to +55°C
Weight in KG0.190/0.1600.2400.3400.110