Description
Damcos MD1D-TA/59N-A/DMS
Product Overview
The Damcos MD1D-TA/59N-A/DMS is a solenoid-operated directional control valve from the MD1D DMS marine hydraulic valve family. Its purpose is straightforward but operationally important: an electrical command energizes the solenoid, shifting the internal spool and changing the hydraulic connection between the valve ports. That makes the valve a building block for remote hydraulic control circuits where electrical commands must be converted into hydraulic actuator movement. Damcos documentation identifies the MD1D-TA configuration within its solenoid-operated directional control valve range and specifies the DMS ordering variants by coil voltage.
For this particular suffix, the important procurement detail is the AC coil configuration. The documented DMS order number 160L8006 corresponds to MD1D-TA/59N-A/DMS for 220 V 50 Hz, 230 V 50 Hz, and 240 V 60 Hz service. The electrical specification lists approximately 176 VA at 220/230 V, 50 Hz and 198 VA at 240 V, 60 Hz during inrush, with approximately 50.6 VA and 61.6 VA holding consumption, respectively. This is not interchangeable with the 24 VDC MD1D-TA/59N-D/DMS simply because the hydraulic valve body looks similar. Coil voltage is a hard compatibility requirement.
Used in marine valve remote-control arrangements, the Damcos -TA/59N-A/DMS is suited to hydraulic control cabinets, power units, and remotely operated machinery where a compact manifold-mounted directional valve is required. Damcos equipment records alsow /59N-A/DMS and closely related variants in vessel service, reinforcing its marine-control application.
One procurement warning deserves emphasis: do not substitute the valve based only on the prefix. The complete DMS suffix and coil configuration matter. The family includes RK, TA, TC, and S9 configurations, along with both DC and AC coil versions. The hydraulic symbol and spool arrangement therefore need to be checked against the installed valve before approving a replacement.
Product Introduction
In a marine hydraulic control cabinet, a directional valve failure can stop an otherwise healthy actuator circuit. The /59N-A/DMS provides the electrical-to-hydraulic switching function needed to redirect hydraulic flow under remote electrical control.
The critical ordering point is the A/DMS AC-coil configuration. DMS order 160L8006 covers 220/230 V AC at 50 Hz and 240 V AC at 60 Hz, while the otherwise similar /59N-D/DMS is the 24 VDC version.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | /59N-A/DMS |
| DMS Order Number | 160L8006 |
| Manufacturer / Brand | Damcos / Danfoss Marine |
| Product Type | Solenoid-operated directional control valve |
| Valve Series | DMS |
| Actuation | Solenoid |
| Coil Type | AC |
| Nominal Coil Ratings | 220 V 50 Hz / 230 V 50 Hz / 240 V 60 Hz |
| Inrush Consumption | 176 VA at 220/230 V 50 Hz; 198 VA at 240 V 60 Hz |
| Holding Consumption | 50.6 VA at 220/230 V 50 Hz; 61.6 VA at 240 V 60 Hz |
| Supply Variation | +5% / -10% of nominal voltage |
| Duty Cycle | 100% |
| Maximum Switching Frequency | 10,000 operations/hour |
| Atmospheric Protection | IP65 |
| Coil Insulation | Class H |
| Coil Impregnation | Class F |
| Mounting | Manifold-mounted |
| Hydraulic Application | Directional flow control |
| Marine Designation | DMS |
The electrical data above comes from the Damcos technical documentation. The published material does not establish a universal maximum working-pressure value forry /59N-A/DMS installation, so pressure should be verified against the valve’s original hydraulic schematic and nameplate rather than copied from unrelated listings.
MD1D-TA/59N-A-DMS
Major Features and Advantages
AC Solenoid Configuration
The defining feature of /59N-A/DMS is its AC solenoid configuration. The documented DMS order 160L8006 covers 220 V 50 Hz, 230 V 50 Hz, and 240 V 60 Hz applications. That makes the electrical interface quite different from the 24 VDC version in the same family.
For procurement, this should be checked against the actual control voltage available at the hydraulic power unit. A visually identical replacement with a DC coil is not an acceptable electrical substitute without an engineered change.
Directional Hydraulic Control
The valve converts an electrical solenoid command into a hydraulic switching action. In a remote-control system, that allows an electrical control station or automation circuit to command the hydraulic actuator without mechanically operating the directional valve itself.
The practical application can include marine machinery hydraulic circuits where valves, actuators, and power units must be controlled from a remote station.
Marine DMS Configuration
The DMS designation identifies the Damcos marine-oriented valve configuration. This is important when maintaining older vessel installations because replacement selection is normally driven by the existing hydraulic circuit, electrical coil, valve symbol, and mechanical interface—not simply by nominal valve size.
100% Duty Cycle
The technical documentation specifies a 100% duty cycle, allowing continuous energization within the specified operating conditions. The published data also specifies a maximum switching frequency of 10,000 operations per hour.
That matters in hydraulic control applications where the solenoid may remain energized for extended actuator movements rather than operating only as a short pulse.
IP65 and Class H Coil Insulation
The valve documentation specifies IP65 atmospheric protection, Class H coil insulation, and Class F impregnation. These characteristics are appropriate to the intended industrial and marine hydraulic-control environment, although they should not be interpreted as proof that the complete valve assembly is suitable for every exposed deck or hazardous-area installation.
Related Products
- /59N-D/DMS — 24 VDC version of the TA configuration; electrically different from the AC model.
- -RK/59N-D/DMS — 24 VDC RK configuration with a different valve/spool arrangement.
- -RK/59N-A/DMS — AC RK configuration; compare the hydraulic symbol before substitution.
- -TC/59N-D/DMS — 24 VDC TC configuration within the same DMS family.
- -TC/59N-A/DMS — AC TC configuration; not automatically equivalent to the TA version.
- -S9/59N-D/DMS — 24 VDC S9 configuration.
- -S9/59N-A/DMS — AC S9 configuration.
- C/EM47-50/R/10 — Manual override accessory identified in the Damcos documentation for the DMS valve family.
The family variants are not simply different voltage options. The published ordering table shows different hydraulic symbols for the RK, TA, TC, and S9 configurations. Match the original hydraulic schematic before treating one variant as a replacement for another.
FAQ
Is /59N-A/DMS an electrical solenoid valve or a hydraulic valve?
It is a hydraulic directional control valve operated by an electrical solenoid. The electrical coil provides the actuation signal; the valve itself controls hydraulic flow.
What is the DMS order numbor /59N-A/DMS?
The documented DMS order number is 160L8006 for the AC version covering 220 V 50 Hz, 230 V 50 Hz, and 240 V 60 Hz service.
Can I replace ith /59N-D/DMS?
Not as a direct electrical substitution. The -D/DMS version is specified for 24 VDC, whereas the -A/DMS version uses the documented AC coil ratings. The hydraulic and mechanical configuration also needs to be confirmed before substitution.
Can I hot-swap this valve?
No assumption of hot replacement should be made. Isolate the electrical solenoid circuit and hydraulic pressure before removal, following the vessel’s approved maintenance procedure. A hydraulic directional valve can retain stored pressure even after the electrical command has been removed.
What is the maximum working pressure?
The available Damcos ordering documentation confirms the valve family, coil, duty cycle, protection, and electrical characteristics but does not provide a sufficiently reliable universal working-pressure figure for this exact configuration. Do not use an unverified pressure number for a critical replacement. Check the original valve documentation, hydraulic schematic, nameplate, and system pressure rating.
Is firmware involved?
No. /59N-A/DMS is an electromechanical hydraulic valve, not a programmable PLC/DCS module. There is no user firmware or software configuration to preserve.
What should I verify before purchasing a replacement?
Verify all of the following:
- Complete valve designation: /59N-A/DMS.
- DMS order number: 160L8006, where applicable.
- Coil voltage and frequency: 220/230 V AC 50 Hz or 240 V AC 60 Hz.
- Valve symbol/spool configuration against the hydraulic schematic.
- Manifold and mechanical interface.
- Hydraulic pressure and flow requirements.
- Connector and coil physical condition.
- Whether a manual override is installed or required.
- New Surplus or used condition, including evidence of functional testing.
For an existing vessel installation, the complete valve code is more important than the family name alone. That is where many apparently compatible spare-valve purchases go wrong.
