Marechal DB3 40 Amp 7.5kW Disconnectable Motor Switches

Marechal DB Disconnectable Motor Switches

Marechal Plugs & Sockets

 

Marechal DB3 Disconnectable Motor Switches - 40 Amp, 7.5kW

The Marechal DB Decontactor for motors, pumps and highly inductive loads combines the functions of visible breaking motor switch and plug and socket outlet.

Marechal decontactor plugs and socket units have a direct impact on safety, cost and machine downtime.

Compliant with the machine Directive for power supply isolation allowing quick electrical equipment replacement.

Marechal DB3 typical applications - mobile motors, emergency installations, flexible production lines, testing benches for motors, fans, mobile conveyors, mixers and containers.

Operation of a Marechal Decontactor for Motors

The Marechal plug is positioned in the socket-outlet by pushing then twisting clockwise in much the same way as inserting an electric light bulb.

The Marechal plug is then in the rest position, circuit open - this is indicated by a "green" window located on the front of the Marechal socket-outlet.

At this stage, the plug can be locked onto the socket-outlet by means of a conventional lock-out. To close the electrical circuit, push the Marechal plug fully home, until it is held by the locking ring.

The window located on the front of the socket-outlet becomes "red". IP67 is achieved by turning the ring clockwise. To release the Marechal plug, simply turn the ring fully anticlockwise.

The circuit is opened and the plug returns to its parked position. To remove the plug from the socket-outlet, turn the plug from right to left. The lid can then be closed.

Turn the ring from left to right to achieve IP67 socket-outlet watertightness.

IP67 Watertightness - Dust-proof and protected against temporary water immersion.

Marechal DB3 40 Amp 7.5kW - Load Capability

• Comply with IEC EN 60309-1 and IEC EN 60309-4 standards  - 40 A / 690 V
• Rated powers (AC-3  load-breaking capacity according to IEC EN 60947-3): -   3 kW up to 230 V - 1P5,5 kW up to 230 V - 3P7,5 kW up to 400 V - 3P7,5 kW up to 500 V - 3P7,5 kW up to 690 V - 3P
• Short-circuit current Icc - 200 kA

Marechal DB3 40 Amp 7.5kW Disconnectable Motor Switches

Rated Current (with wiring according to standard)	40A
Maximum Voltage	690V
IP Protection Lid Closed	IP66/IP67
IP Protection Connected Plug	IP66/IP67
Shock Resistance	IK09
Ambient Temperature	-40ºC to +60ºC
Flexible Wiring (Min-Max)	2.5mm² - 6mm²
Stranded Wiring (Min-Max)	2.5mm² - 10mm²
Pre-wired auiliary contacts (5 A)	1.5mm²
Keying Positions	24

The DB3 is available in a wide range of voltages and polarity options for both female socket outlets and male inlet plugs:

• 190-230V, 3P+E
• 220-250V, 1P+N+E
• 380V-440V, 3P+E
• 220-250V & 380V-440V (Dual Voltage), 3P+N+E
• 660-690V, 3P+E
• 380V-440V & 660V-690V (Dual Voltage), 3P+N+E

Marechal Part Number	Marechal DB3	Marechal DB6	Marechal DB9
AC-3 load-break capability	7.5 kW	22 kW	45 kW
Imax	40 A	75 A	125 A
Umax	690 V for all DB
Casing material	metal for all DB
Keying Positions (To distinguish between different power supplies & applications)	24 for all DB
Ambient Temperature	-40 °C to +60 °C for all DB
Short Circuit Current lcc	200 kA for all DB

Marechal DB3 - Socket Outlets & Inlets

Voltage 50Hz	Polarity	Marechal Socket Outlet (Female) DB3 40A	Marechal Inlet (Male) DB3 40A
190-230V	3P+E	8734033	8738033
220-250V	1P+N+E	8734015	8738015
380-440V	3P+E	8734013	8738013
220-250V / 380-440V	3P+N+E	8734017	8738017
660-690V	3P+E	8734193	8738193
380-440V / 660-690V	3P+N+E	8734197	8738197

YouTube Video Playlist: Marechal Industrial Plugs & Sockets

Marechal DB Disconnectable Motor Switch 7.5kW 22kW 45kW

Power & Distribution & Control in Hazardous Areas

T&D also distribute hazardous area isolators, control panels and distribution boards, electrical enclosures and motor starters certified according to ATEX for use in Zone 1 & Zone 2 (gas/vapour) explosive atmospheres.

Marechal Connectors - DB Disconnectable Motor Switches

Marechal DB Instructions

Marechal DB3 40 Amp 7.5kW Disconnectable Motor Switches