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Safety Limit Switch [D4B-*N] (Part Numbers)

Safety Limit Switch [D4B-*N]

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Robust safety limit switch with metallic housing.
Certified with direct opening mechanism for both slow action and snap action types.
[Features]
· Direct opening mechanism (only at NC contact side) that opens the contact when an abnormality occurs in contact welding, etc.
· Realized a safety lever setting by using a mechanism where the lever is interlocked with the operating position display board.
· Also equipped with proper operation zone display mechanism.
· Single-action switching between left and right operation directions.
· The sealing structure of the head is reinforced to improve sealing properties (TÜV: IEC IP67, UL: NEMA3, 4, 4X, 6P, 13).

(i)Caution

  • The product images are representative only. Specifications may vary by part number, including shape and color.

PDF

Drawing

Safety limit switch D4B-*N external shape drawing-1
Safety limit switch D4B-*N external shape drawing-2

*The dimensional tolerance for the parts not specified in the drawings of each model above is +/- 0.4 mm.
*1. By reversing the set position indicator plate, the lever can be fixed in any desired position.
*2. Due to the mechanism, this is a general limit switch, not a safety limit switch.

Product Specification

Structure

Safety limit switch D4B-*N structural drawing

Performance

Protective structure*1IP67 (EN60947-5-1)
Durability*2MechanicalOver 30 million operations (snap action), over 10 million operations (slow action)
Electrical500,000 operations or more (250 V AC 10 A resistive load)
Allowable operation speed1 mm to 0.5 m/s
Allowable operation frequencyMechanical120 times/min
Electrical30 times/min
Contact resistance25 mΩ or less
Minimum applicable load*35 V DC 180 mA resistive load (N level reference value)
Rated insulation voltage (Ui)600 V (EN60947-5-1)
Rated frequency50/60 Hz
Appliance ClassClass I (with earth terminal)
Pollution degree (operating environment)Pollution degree 3 (EN60947-5-1)
Impulse withstand voltage
(EN60947-5-1)
Between terminals of the same polarity2.5 kV (snap action) / 4 kV (slow action)
Between different pole terminals4 kV (Slow action)
Between each terminal and earth4 kV
Insulation resistance100 MΩ or more between same pole terminals, and between terminals and non-live metal part (500 V DC, insulation resistance tester)
Contact gapMinimum 2 x 2 mm (slow action), minimum 2 x 0.5 mm (snap action)
VibrationMalfunction10 to 55 Hz, Half amplitude 0.75 mm
ImpactEndurance1,000 m/s2 or more
Malfunction300 m/s2 or more
Conditional short circuit current100 A (EN60947-5-1)
Conventional enclosed thermal current (Ithe)20 A (EN60947-5-1)
Operating ambient temperature-40 to +80°C (no freezing)
Operating Ambient Humidity95% RH or less
WeightApproximately 250 g

*1. The values given above are initial values.
   2. Depending on the model, the above contents may differ.
*1. This protective structure is based on test methods according to the standard (EN60947-5-1). Please confirm the sealing performance in advance under the actual operating environment and usage conditions.
*2. The durability conditions are based on an ambient temperature of 5 to 35°C and an ambient humidity of 40 to 70% RH.
*3. This value may vary depending on the switching frequency, environmental conditions, and reliability level. Please check with the actual load in advance.

Part Number
D4B-2A11N
D4B-2A15N
D4B-2A16N
D4B-2A71N
D4B-4A11N
D4B-4A16N
D4B-4A70N
D4B-4A71N
D4B-2111N
D4B-2115N
D4B-2116N
D4B-2117N BY JPN
D4B-2170N
D4B-2171N
D4B-2511N
D4B-2571N
D4B-4115N
D4B-4116N
D4B-4117N
D4B-4170N
D4B-4171N
D4B-4511N
D4B-4515N
D4B-4516N
D4B-4571N
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipDetector Shape Environment Plunger Shape Type Roller Lever Shape Type Lever Shape Type Acquired Standards Force Required for Push Side O.F.
(N)
Motion to Switching P.T.
(mm)
Angle to Switching P.T
(deg)
Max. Stroke T.T
(mm)
Max. Angle T.T
(deg)
Contact Type Mechanical Life
(10,000 times)
Rated Operating Voltage
(V)
Rated Conductance Current
(A)
Main Body External Dimension, Width W
(mm)
Main Body External Dimension, Height H
(mm)
Main Body External Dimension, Length L
(mm)
Lever Length R
(mm)
Detector Element Details Movement After the Operation OT
(mm)
Operating Position OP
(mm)
Conduit Size Specification of Terminal Details Type O.D. Mounting System Direction of Operation Roller Type Contact format Built-in Switch Specification AC Rated Voltage Note

MYR 264.06

1 Piece(s) 5 Day(s) or more Roller Lever Type (rotation)Standard / Cold Resistance-Standard-TUV / UL / C-UL / CE / GB(CCC) / CQC / CSA / EN9.41-21±3°-75Mutual insulation double-throw1000DC30V or Less / DC125V / DC250V / AC100/125V / AC240/250V / More than AC300V10404399.531.5Roller lever type (resin roller)--G1/2 (PF1/2)Ground terminal included1 Conduit Shapeφ17.5×6.6Front mountingSlow actionPlastic Rollers2NC2NC contact (slow-action)125 / 250 / 400-

MYR 283.37

1 Piece(s) 5 Day(s) or more Roller Lever Type (rotation)Standard / Cold Resistance-Standard-TUV / UL / C-UL / CE / GB(CCC) / CQC / CSA / EN9.41-21±3°-75Mutual insulation double-throw1000DC30V or Less / DC125V / DC250V / AC100/125V / AC240/250V / More than AC300V10404399.531.5Roller lever type (stainless steel roller)--G1/2 (PF1/2)Ground terminal included1 Conduit Shapeφ17.5×7Front mountingSlow actionStainless Steel Roller2NC2NC contact (slow-action)125 / 250 / 400-

MYR 325.93

1 Piece(s) 5 Day(s) or more Roller Lever Type (rotation)Standard / Cold Resistance-Variable Roller Levers-TUV / UL / C-UL / CE / GB(CCC) / CQC / CSA / EN9.41-21±3°-75Mutual insulation double-throw1000DC30V or Less / DC125V / DC250V / AC100/125V / AC240/250V / More than AC300V10404399.525-89Variable roller lever type--G1/2 (PF1/2)Ground terminal included1 Conduit Shapeφ19×7Front mountingSlow actionPlastic Rollers2NC2NC contact (slow-action)125 / 250 / 400-

MYR 337.51

1 Piece(s) 5 Day(s) or more Plunger TypeStandard / Cold Resistance[Roller Plungers] Roller Plunger-The Horizontal one way rollerTUV / UL / C-UL / CE / GB(CCC) / CQC / CSA / EN18.632-7-Mutual insulation double-throw1000DC30V or Less / DC125V / DC250V / AC100/125V / AC240/250V / More than AC300V10404397-Top roller plunger type548±1G1/2 (PF1/2)Ground terminal included1 Conduit Shapeφ12.7×4.8Front mountingSlow actionStainless Steel Sintering Roller2NC2NC contact (slow-action)125 / 250 / 400-

MYR 330.26

1 Piece(s) 5 Day(s) or more Roller lever typeStandard---TUV / UL / C-UL / CE / GB(CCC) / CSA / EN------1000-10----Roller lever type (resin roller)--M20-1-conduit type-----2NC contact (slow-action)125 / 250 / 400-

MYR 327.33

1 Piece(s) 5 Day(s) or more Roller lever typeStandard---TUV / UL / C-UL / CE / GB(CCC) / CSA / EN------1000-10----Variable roller lever type--M20-1-conduit type-----2NC contact (slow-action)125 / 250 / 400-

MYR 379.78

1 Piece(s) 5 Day(s) or more Plunger TypeStandardPush Plunger--TUV / UL / C-UL / CE / GB(CCC) / CSA / EN------1000-10----Top plunger type--M20-1-conduit type-----2NC contact (slow-action)125 / 250 / 400-

MYR 421.06

1 Piece(s) 5 Day(s) or more Plunger TypeStandard[Roller Plungers] Roller Plunger--TUV / UL / C-UL / CE / GB(CCC) / CSA / EN------1000-10----Top roller plunger type--M20-1-conduit type-----2NC contact (slow-action)125 / 250 / 400-

MYR 244.74

1 Piece(s) 2 Day(s) or more Roller Lever Type (rotation)Standard / Cold Resistance-Standard-TUV / UL / C-UL / CE / GB(CCC) / CQC / CSA / EN9.41-21±3°-752-circuit Double-break3000DC30V or Less / DC125V / DC250V / AC100/125V / AC240/250V / More than AC300V10404399.531.5Roller lever type (resin roller)--G1/2 (PF1/2)Ground terminal included1 Conduit Shapeφ17.5×6.6Front mountingSnap ActionPlastic Rollers1NC/1NO1NC/1NO contact (snap-action)125 / 250 / 400-

MYR 264.06

1 Piece(s) 2 Day(s) or more Roller Lever Type (rotation)Standard / Cold Resistance-Standard-TUV / UL / C-UL / CE / GB(CCC) / CQC / CSA / EN9.41-21±3°-752-circuit Double-break3000DC30V or Less / DC125V / DC250V / AC100/125V / AC240/250V / More than AC300V10404399.531.5Roller lever type (stainless steel roller)--G1/2 (PF1/2)Ground terminal included1 Conduit Shapeφ17.5×7Front mountingSnap ActionStainless Steel Roller1NC/1NO1NC/1NO contact (snap-action)125 / 250 / 400-

MYR 275.64

1 Piece(s) 5 Day(s) or more Roller Lever Type (rotation)Standard / Cold Resistance-Variable Roller Levers-TUV / UL / C-UL / CE / GB(CCC) / CQC / CSA / EN9.41-21±3°-752-circuit Double-break3000DC30V or Less / DC125V / DC250V / AC100/125V / AC240/250V / More than AC300V10404399.525-89Variable roller lever type--G1/2 (PF1/2)Ground terminal included1 Conduit Shapeφ19×7Front mountingSnap ActionPlastic Rollers1NC/1NO1NC/1NO contact (snap-action)125 / 250 / 400-

MYR 342.61

1 Piece(s) 5 Day(s) or more Roller lever typeStandard---TUV / UL / C-UL / CE / GB(CCC) / CSA / EN------3000-10----Variable rod lever type--G1/2 (PF1/2)-1-conduit type-----1NC/1NO contact (snap-action)125 / 250 / 400BY JPN

MYR 221.50

1 Piece(s) 5 Day(s) or more Plunger TypeStandard / Cold ResistancePush Plunger--TUV / UL / C-UL / CE / GB(CCC) / CQC / CSA / EN18.632-7-2-circuit Double-break3000DC30V or Less / DC125V / DC250V / AC100/125V / AC240/250V / More than AC300V10404397-Top plunger type535±1G1/2 (PF1/2)Ground terminal included1 Conduit Shapeφ9.2Front mountingSnap Action-1NC/1NO1NC/1NO contact (snap-action)125 / 250 / 400-

MYR 252.47

1 Piece(s) 1 Day(s) or more Plunger TypeStandard / Cold Resistance[Roller Plungers] Roller Plunger-The Horizontal one way rollerTUV / UL / C-UL / CE / GB(CCC) / CQC / CSA / EN18.632-7-2-circuit Double-break3000DC30V or Less / DC125V / DC250V / AC100/125V / AC240/250V / More than AC300V10404397-Top roller plunger type548±1G1/2 (PF1/2)Ground terminal included1 Conduit Shapeφ12.7×4.8Front mountingSnap ActionStainless Steel Sintering Roller1NC/1NO1NC/1NO contact (snap-action)125 / 250 / 400-

MYR 256.33

1 Piece(s) 5 Day(s) or more Roller Lever Type (rotation)Standard / Cold Resistance-Standard-TUV / UL / C-UL / CE / GB(CCC) / CQC / CSA / EN9.41-21±3°-75Mutual insulation double-throw1000DC30V or Less / DC125V / DC250V / AC100/125V / AC240/250V / More than AC300V10404399.531.5Roller lever type (resin roller)--G1/2 (PF1/2)Ground terminal included1 Conduit Shapeφ17.5×6.6Front mountingSlow actionPlastic Rollers1NC/1NO1NC/1NO contact (slow-action)125 / 250 / 400-

MYR 379.78

1 Piece(s) 5 Day(s) or more Plunger TypeStandard[Roller Plungers] Roller Plunger--TUV / UL / C-UL / CE / GB(CCC) / CSA / EN------1000-10----Top roller plunger type--G1/2 (PF1/2)-1-conduit type-----1NC/1NO contact (slow-action)125 / 250 / 400-

MYR 339.81

1 Piece(s) 5 Day(s) or more Roller lever typeStandard---TUV / UL / C-UL / CE / GB(CCC) / CSA / EN------3000-10----Roller lever type (stainless steel roller)--M20-1-conduit type-----1NC/1NO contact (snap-action)125 / 250 / 400-

MYR 275.64

1 Piece(s) 5 Day(s) or more Roller Lever Type (rotation)Standard / Cold Resistance-Variable Roller Levers-TUV / UL / C-UL / CE / GB(CCC) / CQC / CSA / EN9.41-21±3°-752-circuit Double-break3000DC30V or Less / DC125V / DC250V / AC100/125V / AC240/250V / More than AC300V10404399.525-89Variable roller lever type--M20Ground terminal included1 Conduit Shapeφ19×7Front mountingSnap ActionPlastic Rollers1NC/1NO1NC/1NO contact (snap-action)125 / 250 / 400-

MYR 277.05

1 Piece(s) 5 Day(s) or more Roller lever typeStandard---TUV / UL / C-UL / CE / GB(CCC) / CSA / EN------3000-10----Variable rod lever type--M20-1-conduit type-----1NC/1NO contact (snap-action)125 / 250 / 400-

MYR 276.60

1 Piece(s) 5 Day(s) or more Plunger TypeStandardPush Plunger--TUV / UL / C-UL / CE / GB(CCC) / CSA / EN------3000-10----Top plunger type--M20-1-conduit type-----1NC/1NO contact (snap-action)125 / 250 / 400-

MYR 253.87

1 Piece(s) 5 Day(s) or more Plunger TypeStandard[Roller Plungers] Roller Plunger--TUV / UL / C-UL / CE / GB(CCC) / CSA / EN------3000-10----Top roller plunger type--M20-1-conduit type-----1NC/1NO contact (snap-action)125 / 250 / 400-

MYR 322.01

1 Piece(s) 5 Day(s) or more Roller lever typeStandard---TUV / UL / C-UL / CE / GB(CCC) / CSA / EN------1000-10----Roller lever type (resin roller)--M20-1-conduit type-----1NC/1NO contact (slow-action)125 / 250 / 400-

MYR 268.64

1 Piece(s) 5 Day(s) or more Lever Shape (push)Standard / Cold Resistance-Standard-TUV / UL / CE / GB(CCC) / CSA / EN9.41-21±3°-75-1000DC125V / DC250V / AC100/125V / AC240/250V / More than AC300V-----Roller lever type (stainless steel roller)--M20-1 Conduit Shape----1NC/1NO1NC/1NO contact (slow-action)250 / 125 / 400-

MYR 375.68

1 Piece(s) 5 Day(s) or more Roller lever typeStandard---TUV / UL / C-UL / CE / GB(CCC) / CSA / EN------1000-10----Variable roller lever type--M20-1-conduit type-----1NC/1NO contact (slow-action)125 / 250 / 400-

MYR 308.02

1 Piece(s) 5 Day(s) or more Plunger TypeStandard[Roller Plungers] Roller Plunger--TUV / UL / C-UL / CE / GB(CCC) / CSA / EN------1000-10----Top roller plunger type--M20-1-conduit type-----1NC/1NO contact (slow-action)125 / 250 / 400-

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Basic Information

Main Body Size Standard Operating Temperature Range(°C) -40::80 Protection Structure IP67
Mechanical Operation Frequency(times/min or Less) 120 DC Rated Voltage 8 / 14 / 30 / 125 / 250

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