Mechanical Interlocks
Mechanical interlocks are safety devices designed to control the correct sequence of electrical connection and disconnection, preventing unsafe or incompatible power engagement. They provide reliable protection for both equipment and operators in demanding industrial environments while improving overall system safety and performance.
- Ensures safe, sequential connection and disconnection of electrical circuits
- Prevents simultaneous engagement of incompatible power sources
- Rugged construction resists impact, dust, moisture, and harsh environmental conditions
- Precision-engineered mechanism provides reliable, long-lasting operation while enhancing safety by reducing the risk of electrical faults and equipment damage
- Compatible with pin and sleeve plugs, receptacles, and inlets for seamless system integration; available in configurations with base, without base, and with base and consumer unit
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Mechanical Interlock No Base - 20A, 125, 4H, 2-Pole 3-Wire Grounding, YellowItem # SCM320MI4W-NBView More InfoView Less InfoView More InfoView Less Info-
Country of OriginIT
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NameMechanical Interlock No Base - 20A, 125, 4H, 2-Pole 3-Wire Grounding, Yellow
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BrandScame Pin & Sleeve
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Colour CodingYellow
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Clock Position4h
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Poles & Wires2P 3W
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Rated Current20A
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Frequency50 - 60Hz
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Protection degreeIP66/IP67/IP69 (UL 94 TYPE 3R, 4/4X. 12)
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Type (With/Without Base/With Base and Consumer Unit)Without Base
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Operating Temperature according to reference standard-25°C + 40°C
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Min Operating Ambient Temperature-40°C
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Max Operating Ambient Temperature+70°C
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ColourGrey RAL7037
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Terminal Capacity Wire Size Range (switch/ground/neutral)16-6 AWG (1.5÷10mm2)
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Terminal Capacity Auxiliary contact10-18 AWG (1.5÷10mm2)
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Padlock to be Used - Ø D (mm)5
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Terminal Torque Switch0.8 Nm (7lb•in)
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Terminal Torque Ground/Neutral0.8 Nm (7lb•in)
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Terminal Torque Auxiliary Contact0.8 Nm (7lb•in)
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Self-extinguishing GW Test960°C
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ULcULus
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Mechanical Interlock No Base - 20A, 125/250, 12H, 3-Pole 4-Wire Grounding, OrangeItem # SCM420MI12W-NBView More InfoView Less InfoView More InfoView Less Info-
Country of OriginIT
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NameMechanical Interlock No Base - 20A, 125/250, 12H, 3-Pole 4-Wire Grounding, Orange
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BrandScame Pin & Sleeve
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Colour CodingOrange
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Clock Position12h
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Poles & Wires3P 4W
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Rated Current20A
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Frequency50 - 60Hz
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Protection degreeIP66/IP67/IP69 (UL 94 TYPE 3R, 4/4X. 12)
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Type (With/Without Base/With Base and Consumer Unit)Without Base
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Operating Temperature according to reference standard-25°C + 40°C
-
Min Operating Ambient Temperature-40°C
-
Max Operating Ambient Temperature+70°C
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ColourGrey RAL7037
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Terminal Capacity Wire Size Range (switch/ground/neutral)16-6 AWG (1.5÷10mm2)
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Terminal Capacity Auxiliary contact10-18 AWG (1.5÷10mm2)
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Padlock to be Used - Ø D (mm)5
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Terminal Torque Switch0.8 Nm (7lb•in)
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Terminal Torque Ground/Neutral0.8 Nm (7lb•in)
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Terminal Torque Auxiliary Contact0.8 Nm (7lb•in)
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Self-extinguishing GW Test960°C
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ULcULus
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Mechanical Interlock No Base - 20A, 250, 6H, 2-Pole 3-Wire Grounding, BlueItem # SCM320MI6W-NBView More InfoView Less InfoView More InfoView Less Info-
Country of OriginIT
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NameMechanical Interlock No Base - 20A, 250, 6H, 2-Pole 3-Wire Grounding, Blue
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BrandScame Pin & Sleeve
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Colour CodingBlue
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Clock Position6h
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Poles & Wires2P 3W
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Rated Current20A
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Frequency50 - 60Hz
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Protection degreeIP66/IP67/IP69 (UL 94 TYPE 3R, 4/4X. 12)
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Type (With/Without Base/With Base and Consumer Unit)Without Base
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Operating Temperature according to reference standard-25°C + 40°C
-
Min Operating Ambient Temperature-40°C
-
Max Operating Ambient Temperature+70°C
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ColourGrey RAL7037
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Terminal Capacity Wire Size Range (switch/ground/neutral)16-6 AWG (1.5÷10mm2)
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Terminal Capacity Auxiliary contact10-18 AWG (1.5÷10mm2)
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Padlock to be Used - Ø D (mm)5
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Terminal Torque Switch0.8 Nm (7lb•in)
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Terminal Torque Ground/Neutral0.8 Nm (7lb•in)
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Terminal Torque Auxiliary Contact0.8 Nm (7lb•in)
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Self-extinguishing GW Test960°C
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ULcULus
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Mechanical Interlock No Base - 20A, 3PH-250, 9H, 3-Pole 4-Wire Grounding, BlueItem # SCM420MI9W-NBView More InfoView Less InfoView More InfoView Less Info-
Country of OriginIT
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NameMechanical Interlock No Base - 20A, 3PH-250, 9H, 3-Pole 4-Wire Grounding, Blue
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BrandScame Pin & Sleeve
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Colour CodingBlue
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Clock Position9h
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Poles & Wires3P 4W
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Rated Current20A
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Frequency50 - 60Hz
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Protection degreeIP66/IP67/IP69 (UL 94 TYPE 3R, 4/4X. 12)
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Type (With/Without Base/With Base and Consumer Unit)Without Base
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Operating Temperature according to reference standard-25°C + 40°C
-
Min Operating Ambient Temperature-40°C
-
Max Operating Ambient Temperature+70°C
-
ColourGrey RAL7037
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Terminal Capacity Wire Size Range (switch/ground/neutral)16-6 AWG (1.5÷10mm2)
-
Terminal Capacity Auxiliary contact10-18 AWG (1.5÷10mm2)
-
Padlock to be Used - Ø D (mm)5
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Terminal Torque Switch0.8 Nm (7lb•in)
-
Terminal Torque Ground/Neutral0.8 Nm (7lb•in)
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Terminal Torque Auxiliary Contact0.8 Nm (7lb•in)
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Self-extinguishing GW Test960°C
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ULcULus
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Mechanical Interlock No Base - 20A, 3PH-480, 7H, 3-Pole 4-Wire Grounding, RedItem # SCM420MI7W-NBView More InfoView Less InfoView More InfoView Less Info-
Country of OriginIT
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NameMechanical Interlock No Base - 20A, 3PH-480, 7H, 3-Pole 4-Wire Grounding, Red
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BrandScame Pin & Sleeve
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Colour CodingRed
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Clock Position7h
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Poles & Wires3P 4W
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Rated Current20A
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Frequency50 - 60Hz
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Protection degreeIP66/IP67/IP69 (UL 94 TYPE 3R, 4/4X. 12)
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Type (With/Without Base/With Base and Consumer Unit)Without Base
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Operating Temperature according to reference standard-25°C + 40°C
-
Min Operating Ambient Temperature-40°C
-
Max Operating Ambient Temperature+70°C
-
ColourGrey RAL7037
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Terminal Capacity Wire Size Range (switch/ground/neutral)16-6 AWG (1.5÷10mm2)
-
Terminal Capacity Auxiliary contact10-18 AWG (1.5÷10mm2)
-
Padlock to be Used - Ø D (mm)5
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Terminal Torque Switch0.8 Nm (7lb•in)
-
Terminal Torque Ground/Neutral0.8 Nm (7lb•in)
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Terminal Torque Auxiliary Contact0.8 Nm (7lb•in)
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Self-extinguishing GW Test960°C
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ULcULus
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Mechanical Interlock No Base - 20A, 3PH-600, 5H, 3-Pole 4-Wire Grounding, BlackItem # SCM420MI5W-NBView More InfoView Less InfoView More InfoView Less Info-
Country of OriginIT
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NameMechanical Interlock No Base - 20A, 3PH-600, 5H, 3-Pole 4-Wire Grounding, Black
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BrandScame Pin & Sleeve
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Colour CodingBlack
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Clock Position5h
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Poles & Wires3P 4W
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Rated Current20A
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Frequency50 - 60Hz
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Protection degreeIP66/IP67/IP69 (UL 94 TYPE 3R, 4/4X. 12)
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Type (With/Without Base/With Base and Consumer Unit)Without Base
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Operating Temperature according to reference standard-25°C + 40°C
-
Min Operating Ambient Temperature-40°C
-
Max Operating Ambient Temperature+70°C
-
ColourGrey RAL7037
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Terminal Capacity Wire Size Range (switch/ground/neutral)16-6 AWG (1.5÷10mm2)
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Terminal Capacity Auxiliary contact10-18 AWG (1.5÷10mm2)
-
Padlock to be Used - Ø D (mm)5
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Terminal Torque Switch0.8 Nm (7lb•in)
-
Terminal Torque Ground/Neutral0.8 Nm (7lb•in)
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Terminal Torque Auxiliary Contact0.8 Nm (7lb•in)
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Self-extinguishing GW Test960°C
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ULcULus
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Mechanical Interlock No Base - 20A, 3PH-Y120/208, 9H, 4-Pole 5-Wire Grounding, BlueItem # SCM520MI9W-NBView More InfoView Less InfoView More InfoView Less Info-
Country of OriginIT
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NameMechanical Interlock No Base - 20A, 3PH-Y120/208, 9H, 4-Pole 5-Wire Grounding, Blue
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BrandScame Pin & Sleeve
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Colour CodingBlue
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Clock Position9h
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Poles & Wires4P 5W
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Rated Current20A
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Frequency50 - 60Hz
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Protection degreeIP66/IP67/IP69 (UL 94 TYPE 3R, 4/4X. 12)
-
Type (With/Without Base/With Base and Consumer Unit)Without Base
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Operating Temperature according to reference standard-25°C + 40°C
-
Min Operating Ambient Temperature-40°C
-
Max Operating Ambient Temperature+70°C
-
ColourGrey RAL7037
-
Terminal Capacity Wire Size Range (switch/ground/neutral)16-6 AWG (1.5÷10mm2)
-
Terminal Capacity Auxiliary contact10-18 AWG (1.5÷10mm2)
-
Padlock to be Used - Ø D (mm)5
-
Terminal Torque Switch0.8 Nm (7lb•in)
-
Terminal Torque Ground/Neutral0.8 Nm (7lb•in)
-
Terminal Torque Auxiliary Contact0.8 Nm (7lb•in)
-
Self-extinguishing GW Test960°C
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ULcULus
-
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Mechanical Interlock No Base - 20A, 3PH-Y277/480, 7H, 4-Pole 5-Wire Grounding, RedItem # SCM520MI7W-NBView More InfoView Less InfoView More InfoView Less Info-
Country of OriginIT
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NameMechanical Interlock No Base - 20A, 3PH-Y277/480, 7H, 4-Pole 5-Wire Grounding, Red
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BrandScame Pin & Sleeve
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Colour CodingRed
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Clock Position7h
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Poles & Wires4P 5W
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Rated Current20A
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Frequency50 - 60Hz
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Protection degreeIP66/IP67/IP69 (UL 94 TYPE 3R, 4/4X. 12)
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Type (With/Without Base/With Base and Consumer Unit)Without Base
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Operating Temperature according to reference standard-25°C + 40°C
-
Min Operating Ambient Temperature-40°C
-
Max Operating Ambient Temperature+70°C
-
ColourGrey RAL7037
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Terminal Capacity Wire Size Range (switch/ground/neutral)16-6 AWG (1.5÷10mm2)
-
Terminal Capacity Auxiliary contact10-18 AWG (1.5÷10mm2)
-
Padlock to be Used - Ø D (mm)5
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Terminal Torque Switch0.8 Nm (7lb•in)
-
Terminal Torque Ground/Neutral0.8 Nm (7lb•in)
-
Terminal Torque Auxiliary Contact0.8 Nm (7lb•in)
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Self-extinguishing GW Test960°C
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ULcULus
-
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Mechanical Interlock No Base - 20A, 480, 7H, 2-Pole 3-Wire Grounding, RedItem # SCM320MI7W-NBView More InfoView Less InfoView More InfoView Less Info-
Country of OriginIT
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NameMechanical Interlock No Base - 20A, 480, 7H, 2-Pole 3-Wire Grounding, Red
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BrandScame Pin & Sleeve
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Colour CodingRed
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Clock Position7h
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Poles & Wires2P 3W
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Rated Current20A
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Frequency50 - 60Hz
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Protection degreeIP66/IP67/IP69 (UL 94 TYPE 3R, 4/4X. 12)
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Type (With/Without Base/With Base and Consumer Unit)Without Base
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Operating Temperature according to reference standard-25°C + 40°C
-
Min Operating Ambient Temperature-40°C
-
Max Operating Ambient Temperature+70°C
-
ColourGrey RAL7037
-
Terminal Capacity Wire Size Range (switch/ground/neutral)16-6 AWG (1.5÷10mm2)
-
Terminal Capacity Auxiliary contact10-18 AWG (1.5÷10mm2)
-
Padlock to be Used - Ø D (mm)5
-
Terminal Torque Switch0.8 Nm (7lb•in)
-
Terminal Torque Ground/Neutral0.8 Nm (7lb•in)
-
Terminal Torque Auxiliary Contact0.8 Nm (7lb•in)
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Self-extinguishing GW Test960°C
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ULcULus
-
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Mechanical Interlock No Base - 30A, 125, 4H, 2-Pole 3-Wire Grounding, YellowItem # SCM330MI4W-NBView More InfoView Less InfoView More InfoView Less Info-
Country of OriginIT
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NameMechanical Interlock No Base - 30A, 125, 4H, 2-Pole 3-Wire Grounding, Yellow
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BrandScame Pin & Sleeve
-
Colour CodingYellow
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Clock Position4h
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Poles & Wires2P 3W
-
Rated Current30A
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Frequency50 - 60Hz
-
Protection degreeIP66/IP67/IP69 (UL 94 TYPE 3R, 4/4X. 12)
-
Type (With/Without Base/With Base and Consumer Unit)Without Base
-
Operating Temperature according to reference standard-25°C + 40°C
-
Min Operating Ambient Temperature-40°C
-
Max Operating Ambient Temperature+70°C
-
ColourGrey RAL7037
-
Terminal Capacity Wire Size Range (switch/ground/neutral)16-6 AWG (1.5÷10mm2)
-
Terminal Capacity Auxiliary contact10-18 AWG (1.5÷10mm2)
-
Padlock to be Used - Ø D (mm)5
-
Terminal Torque Switch0.8 Nm (7lb•in)
-
Terminal Torque Ground/Neutral0.8 Nm (7lb•in)
-
Terminal Torque Auxiliary Contact0.8 Nm (7lb•in)
-
Self-extinguishing GW Test960°C
-
ULcULus
-
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Mechanical Interlock No Base - 30A, 125/250, 12H, 3-Pole 4-Wire Grounding, OrangeItem # SCM430MI12W-NBView More InfoView Less InfoView More InfoView Less Info-
Country of OriginIT
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NameMechanical Interlock No Base - 30A, 125/250, 12H, 3-Pole 4-Wire Grounding, Orange
-
BrandScame Pin & Sleeve
-
Colour CodingOrange
-
Clock Position12h
-
Poles & Wires3P 4W
-
Rated Current30A
-
Frequency50 - 60Hz
-
Protection degreeIP66/IP67/IP69 (UL 94 TYPE 3R, 4/4X. 12)
-
Type (With/Without Base/With Base and Consumer Unit)Without Base
-
Operating Temperature according to reference standard-25°C + 40°C
-
Min Operating Ambient Temperature-40°C
-
Max Operating Ambient Temperature+70°C
-
ColourGrey RAL7037
-
Terminal Capacity Wire Size Range (switch/ground/neutral)16-6 AWG (1.5÷10mm2)
-
Terminal Capacity Auxiliary contact10-18 AWG (1.5÷10mm2)
-
Padlock to be Used - Ø D (mm)5
-
Terminal Torque Switch0.8 Nm (7lb•in)
-
Terminal Torque Ground/Neutral0.8 Nm (7lb•in)
-
Terminal Torque Auxiliary Contact0.8 Nm (7lb•in)
-
Self-extinguishing GW Test960°C
-
ULcULus
-
-
Mechanical Interlock No Base - 30A, 250, 6H, 2-Pole 3-Wire Grounding, BlueItem # SCM330MI6W-NBView More InfoView Less InfoView More InfoView Less Info-
Country of OriginIT
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NameMechanical Interlock No Base - 30A, 250, 6H, 2-Pole 3-Wire Grounding, Blue
-
BrandScame Pin & Sleeve
-
Colour CodingBlue
-
Clock Position6h
-
Poles & Wires2P 3W
-
Rated Current30A
-
Frequency50 - 60Hz
-
Protection degreeIP66/IP67/IP69 (UL 94 TYPE 3R, 4/4X. 12)
-
Type (With/Without Base/With Base and Consumer Unit)Without Base
-
Operating Temperature according to reference standard-25°C + 40°C
-
Min Operating Ambient Temperature-40°C
-
Max Operating Ambient Temperature+70°C
-
ColourGrey RAL7037
-
Terminal Capacity Wire Size Range (switch/ground/neutral)16-6 AWG (1.5÷10mm2)
-
Terminal Capacity Auxiliary contact10-18 AWG (1.5÷10mm2)
-
Padlock to be Used - Ø D (mm)5
-
Terminal Torque Switch0.8 Nm (7lb•in)
-
Terminal Torque Ground/Neutral0.8 Nm (7lb•in)
-
Terminal Torque Auxiliary Contact0.8 Nm (7lb•in)
-
Self-extinguishing GW Test960°C
-
ULcULus
-
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