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Safety Limit Switch [D4B-*N] (D4B-4511N)

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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.

Part Number

Configured Part Number is shown.

D4B-4511N

Product Specifications
Part Numbers
Catalog

Drawing

*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*1		IP67 (EN60947-5-1)
Durability*2	Mechanical	Over 30 million operations (snap action), over 10 million operations (slow action)
Durability*2	Electrical	500,000 operations or more (250 V AC 10 A resistive load)
Allowable operation speed		1 mm to 0.5 m/s
Allowable operation frequency	Mechanical	120 times/min
Allowable operation frequency	Electrical	30 times/min
Contact resistance		25 mΩ or less
Minimum applicable load*3		5 V DC 180 mA resistive load (N level reference value)
Rated insulation voltage (Ui)		600 V (EN60947-5-1)
Rated frequency		50/60 Hz
Appliance Class		Class 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 polarity	2.5 kV (snap action) / 4 kV (slow action)
	Between different pole terminals	4 kV (Slow action)
	Between each terminal and earth	4 kV
Insulation resistance		100 MΩ or more between same pole terminals, and between terminals and non-live metal part (500 V DC, insulation resistance tester)
Contact gap		Minimum 2 x 2 mm (slow action), minimum 2 x 0.5 mm (snap action)
Vibration	Malfunction	10 to 55 Hz, Half amplitude 0.75 mm
Impact	Endurance	1,000 m/s² or more
Impact	Malfunction	300 m/s² or more
Conditional short circuit current		100 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 Humidity		95% RH or less
Weight		Approximately 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.

: 30; 45; 60

Part Number
D4B-4511N

Part Number	Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	Detector 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 322.01	1 Piece(s)		5 Day(s) or more	Roller lever type	Standard	-	-	-	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	-

Product TOP

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

Configure

1 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

Plunger Shape Type
- Roller Plungers
  - Roller Plunger
- Push Plunger
Clear
Roller Lever Shape Type
- Standard
- Variable Roller Levers
Clear
Lever Shape Type
- The Horizontal one way roller
Clear
Force Required for Push Side O.F.(N)
9.41

18.63
Clear
Contact Type
- Mutual insulation double-throw
- 2-circuit Double-break
Clear
Rated Operating Voltage(V)
- DC30V or Less
- DC125V
- DC250V
- AC100/125V
- AC240/250V
- More than AC300V
Clear
Movement After the Operation OT(mm)
5
Clear
Operating Position OP(mm)
- 35±1
- 48±1
Clear
Specification of Terminal
Ground terminal included
Clear
O.D.
- φ9.2
- φ12.7×4.8
- φ17.5×6.6
- φ17.5×7
- φ19×7
Clear
Mounting System
Front mounting
Clear
Direction of Operation
Slow action

Snap Action
Clear
Roller Type
- Plastic Rollers
- Stainless Steel Roller
- Stainless Steel Sintering Roller
Clear
Contact format
- 1NC/1NO
- 2NC
Clear
type
- D4B-□N
Clear
Detector Shape
- Plunger Type
- Roller Lever Type (rotation)
- Lever Shape (push)
- Roller lever type
Clear
Environment
- Standard
- Cold Resistance
Clear
Rated Conductance Current(A)
10
Clear
Detector Element Details
- Roller lever type (resin roller)
- Roller lever type (stainless steel roller)
- Top plunger type
- Top roller plunger type
- Variable rod lever type
- Variable roller lever type
Clear
Conduit Size
G1/2 (PF1/2)

M20
Clear
Details Type
- 1-conduit type
- 1 Conduit Shape
Clear
Built-in Switch Specification
- 1NC/1NO contact (slow-action)
- 1NC/1NO contact (snap-action)
- 2NC contact (slow-action)
Clear
AC Rated Voltage
- 125 / 250 / 400
- 250　/ 125　/ 400
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

1 Day(s) or Less

2 Day(s) or Less

5 Day(s) or Less
Clear

Specify Alterations

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

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How can we improve?

Safety Limit Switch [D4B-*N] (D4B-4511N)

(i)Caution

Drawing

Product Specification

Structure

Performance

Basic Information

Configure

Specification/Dimensions

Plunger Shape Type

Roller Lever Shape Type

Lever Shape Type

Force Required for Push Side O.F.(N)

Contact Type

Rated Operating Voltage(V)

Movement After the Operation OT(mm)

Operating Position OP(mm)

Specification of Terminal

O.D.

Mounting System

Direction of Operation

Roller Type

Contact format

type

Detector Shape

Environment

Rated Conductance Current(A)

Detector Element Details

Conduit Size

Details Type

Built-in Switch Specification

AC Rated Voltage

CAD

Days to Ship

Specify Alterations

Additional Products in this Category

Customers Who Viewed This Item Also Viewed

Tech Support

Payment Method

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