The Honeywell FEMA DCM Series pressure switches are divided into various models based on their pressure adjustment range and whether the switching differential (deadband) is adjustable. In addition to the DCM6 (0.5 to 6 bar), the main models in this series include:
1. Standard Models (Fixed Switching Differential)
Arranged by pressure range from low to high:
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Micro / Low Pressure (mbar range)
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DCM4016: 1 to 16 mbar
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DCM4025: 4 to 25 mbar
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DCM1000: 10 to 100 mbar (0.01 to 0.1 bar)
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Medium-Low Pressure (bar range)
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DCM025: 0.04 to 0.25 bar
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DCM06: 0.1 to 0.6 bar
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DCM1: 0.2 to 1.6 bar
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DCM3: 0.2 to 2.5 bar
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Medium-High Pressure (bar range)
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DCM625: 0.5 to 6 bar (higher max pressure rating, up to 25 bar)
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DCM10: 1 to 10 bar
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DCM16: 3 to 16 bar
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DCM25: 4 to 25 bar
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DCM40: 8 to 40 bar
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DCM63: 16 to 63 bar
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2. DCMV Series (Adjustable Switching Differential)
Models with the letter V (e.g., DCMV6) feature an adjustable switching differential (deadband), allowing precise customization of the setpoint and reset point.
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DCMV06: 0.1 to 0.6 bar (adjustable differential: 0.04 to 0.5 bar)
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DCMV1: 0.2 to 1.6 bar
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DCMV3: 0.2 to 2.5 bar (adjustable differential: 0.15 to 1.5 bar)
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DCMV6: 0.5 to 6 bar (adjustable differential: 0.25 to 2.0 bar)
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DCMV10: 1 to 10 bar
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DCMV16: 3 to 16 bar (adjustable differential: 0.7 to 3.5 bar)
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DCMV25: 4 to 25 bar
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DCMV40: 8 to 40 bar
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DCMV63: 16 to 63 bar
3. Special Variant Suffixes
In industrial applications, suffixes are often added to these base model numbers to indicate explosion-proof ratings or specific contact configurations:
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Ex-DCM Series (e.g.,
Ex-DCM6): ATEX-certified explosion-proof models for hazardous locations. -
Gold-Plated Contacts Suffix (e.g.,
DCM6-205/DCM6-301): Ideal for low-voltage, low-current signal inputs (such as PLC digital inputs). -
Dual SPDT Contacts Suffix (e.g.,
DCM6-513): Double-break changeover contacts providing two simultaneous control signal outputs.
