Marechal DB3 Motor Switches – 7.5kW 40A AC-3 Load Break Switch
Marechal DB Motor Switches
disconnectable motor switches
marechal db3
Marechal DB3 motor switches have current ratings of 40A with the ability to combine the functions of switch-engine cutoff switch and plug and socket-outlet.
Marechal DB3 motor switches guarantee the safety of personnel throughout an operation on the load (motor load or highly inductive) and have an AC-3 load capability 7.5kW.
Marechal DB3 motor switches – Technical Specification
| Rated Current (with wiring according to standard) | 40A |
| Maximum Voltage | 690V |
| Ingress Protection Lid Closed | IP66/IP67 |
| Ingress Protection Connected Plug | IP66/IP67 |
| Impact Resistance | IK09 |
| Ambient Temperature | -40ºC to +60ºC |
| Flexible Wiring (Min-Max) | 2.5 mm² – 6 mm² |
| Stranded Wiring (Min-Max) | 2.5 mm² – 10 mm² |
| Pre-wired auxiliary contacts (5 A) | 1.5 mm² |
| Keying Positions | 24 |
Load Break Capability Of Decontactor
- 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 | Typical Configuration
Marechal DB3 Motor SwitchES Specification
Marechal DB3 Plug Assembly manufactured from metal with IP66/IP67 protection and 40A current supply is configured using associated wall mounting socket, plug, wall box, outlet, inlet and handles.
A full range of boxes, sleeves, handles, adaptors and accessories can also be supplied. The Marechal DB range of plugs and sockets are suitable for rated currents from 40A up to 125A and rated powers from 7.5kW up to 45kW.
Ordering Information
| Voltage 50Hz | Polarity | Marechal DB3 Socket Outlet (Female) 40A | Marechal DB3 Inlet (Male) 40A |
| 220V – 250V | 1P+N+E | 8734015 | 8738015 |
| 380V – 440V | 3P+E | 8734013 | 8738013 |
| 220V – 250V / 380V – 440V | 3P+N+E | 8734017 | 8738017 |
| 660V – 690V | 3P+E | 8734193 | 8738193 |
| 380V – 440V / 660V – 690V | 3P+N+E | 8734197 | 8738197 |
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 DB Decontactors – Disconnectable Motor Switches | Catalogue
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