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General-purpose Limit Switch
D4A-@N
The Limit Switch with Better Seal, Shock
Resistance, and Strength
• A double seal on the head, a complete gasket cover, and other
features ensure a better seal (meets UL NEMA 3, 4, 4X, 6P , 12,
13).
• Block mounting method to reduce weight to 290 g.
• Block mounting method also reduces downtime for mainte-
nance.
• Wide standard operating temperature range:
–40°C to 100°C (standard type).
• Models with fluoro-rubber available for greater resistance to
chemicals.
• DPDT, double-break models available for complex operations.
Model Number Structure
I Model Number Legend
D4A-@@@@N
1 2
3
1. Receptacle Box
1:
1/2-14 NPT conduit (SPDT, double-break)
2:
1/2-14 NPT conduit (DPDT, double-break)
3:
G 1/2 conduit (SPDT, double-break)
4:
G 1/2 conduit (DPDT, double-break)
5:
M20 x 1.5 conduit (SPDT, double-break)
6:
M20 x 1.5 conduit (DPDT, double-break)
2. Switch Box
1:
SPDT, double-break, without indicator
3:
SPDT, double-break, neon lamp
A:
SPDT, double-break, LED (12 VDC)
C:
SPDT, double-break, LED
(24 VDC, leakage current: 4 mA)
E:
SPDT, double-break, LED
(24 VDC, leakage current: 1.3 mA)
G:
SPDT, double-break, LED (48 VDC)
5:
DPDT, double-break, simultaneous operation, without indi-
cator
7:
DPDT, double-break, sequential operation, without indicator
(See note 1.)
9:
DPDT, double-break, center neutral operation, without indi-
cator (See note 2.)
L:
DPDT, double-break, simultaneous operation, neon lamp
M:
DPDT, double-break, sequential operation, neon lamp
(See note 1.)
N:
DPDT, double-break, center neutral operation, neon lamp
(See note 2.)
P:
DPDT, double-break, simultaneous operation, LED
Q:
DPDT, double-break, sequential operation, LED
(See note 1.)
R:
DPDT, double-break, center neutral operation, LED
(See note 2.)
3. Head
01:
Roller lever, standard
02:
Roller lever, high-sensitivity
03:
Roller lever, low torque
04:
Roller lever, high-sensitivity, low torque
05:
Roller lever, maintained
17:
Roller lever, sequential operation
18:
Roller lever, center neutral operation
06:
Side plunger, standard
07-V: Side plunger, vertical roller
07-H: Side plunger, horizontal roller
08:
Side plunger, adjustable
09:
Top plunger, standard
10:
Top plunger, roller
11:
Top plunger, adjustable
12:
Flexible rod, spring wire
14:
Flexible rod, plastic rod
15:
Flexible rod, cat whisker
16:
Flexible rod, coil spring
Note: 1. Use the D4A-0017N Special Head.
2. Use the D4A-0018N Special Head.
3. Fluoro-rubber sealed type is also available.
General-purpose Limit Switch
D4A-@N
F-9
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Table of Contents
Related Manuals for Omron D4A-N
Summary of Contents for Omron D4A-N
- Page 1 Resistance, and Strength • A double seal on the head, a complete gasket cover, and other features ensure a better seal (meets UL NEMA 3, 4, 4X, 6P , 12, 13). • Block mounting method to reduce weight to 290 g.
-
Page 2: Ordering Information
Flexible rod: D4A-1E16N, D4A-1G16N Coil spring Note: 1. The Switches listed above with an optional G1/2 or M20 x 1.5 conduit can be supplied upon request. To order, change the conduit iden- tifier in the model number as follows: 1/2-14NPT G1/2 M20 x 1.5... - Page 3 D4A-2P16N Flexible rod: Coil spring Note: 1. The Switches listed above with an optional G1/2 or M20 x 1.5 conduit can be supplied upon request. To order, change the conduit iden- tifier in the model number as follows: 1/2-14NPT G 1/2 M20 x 1.5...
-
Page 4: Individual Parts
Individual Parts Replacement of Parts Because the D4A-@N employs block mounting construction, the switch body, receptacle, and operating head may be ordered as a complete assembly or individually as replacement parts. Receptacle Switch box Head Lever Levers for Roller Lever Switches are optionally available. - Page 5 D4A-0015N D4A-0016N Note: 1. Levers for Roller Lever Switches are optionally available. Select the lever from those listed in this data sheet and order (refer to Levers on pages 28 and 29). 2. The D4A-C00 adjustable roller lever is too heavy and long for these heads and it should not be used or mechanical malfunction will result.
-
Page 6: Specifications
7,200 VA 720 VA 240 VAC 30 A 480 VAC 15 A 1.5 A 600 VAC 12 A 1.2 A A300 D4A-@3@@N (SPDT, Double-break, With Neon Lamp) Rated voltage Carry current Current Volt-amperes Make Break Make Break 120 VAC 10 A... - Page 7 Note: 1. The above current ratings are for steady-state current. 2. Inductive loads have a power factor of 0.4 min. (AC) and a time constant of 7 ms max. (DC). 3. Lamp loads have an inrush current of 10 times the steady-state current.
- Page 8 Note: 1. The above figures are initial values. 2. Excluding maintained models. 3. The values are calculated at an operating temperature of 5°C to 35°C, and an operating humidity of 40% to 70%. Contact your OMRON sales representative for more detailed information on other operating environments.
- Page 9 I Operating Characteristics Note: The figures in the parentheses are average values. Roller Lever Switches SPDT Double-break Model D4A-1@01N D4A-1@02N D4A-1@03N D4A-1@04N D4A-1@05N OF max. 0.39 N·m 0.39 N·m 0.2 N·m 0.2 N·m 0.39 N·m RF min. 0.05 N·m 0.05 N·m PT max.
- Page 10 Note: 1. Use the D4A-0017N Special Head. 2. Use the D4A-0018N Special Head. 3. Indicator lamp setting is made before shipping so that it will light when the Limit Switch is not being operated. D4A-@N F-18 General-purpose Limit Switch...
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Page 11: Engineering Data
The D4A-@N saves installation space, simplifies wiring methods, and lowers operation costs because only a single D4A-@N is required for the control of the speeds of a factory machine or selection of CW or CCW rotation of a motor, for which two conventional limit switches are required. - Page 12 With the Roller Lever and Side Plunger Switches, the Roller direction of the switch head can be varied to any of the four The roller actuator is made of hardened directions by loosing the roller lever switch screws at the stainless steel and excels in resistance to four corners of the head.
-
Page 13: Installation
I Operation Changing the Operating Direction The head of the side rotary type can be converted in seconds to CW, CCW, or both-way operation. Follow the procedures on the right hand side for conversion (not applicable to the Maintained, Sequen- tial Operating, Center Neutral Operating Switches). - Page 14 Head and Lever Positions The operating head can be positioned and locked in any of four 90° positions and a lever can lock in any position through 360° around the shaft of the Limit Switch. Furthermore, the lever can be reversed and attached to the shaft (refer to the figures below on the right hand side). Therefore the roller is compatible with a wide movement range of a dog.
-
Page 15: Lever Position
The type of switch box is printed. (The type is also indicated on the head and receptable.) I Compatibility with D4A-@ The D4A-@N is compatible with the D4A-@ when the following accessories are attached to the D4A-@N. D4A-@ D4A-@N D4A-@N... - Page 16 Note: 1. All units are in millimeters unless otherwise indicated. 2. Insert the model number code in @ for the switch body. 3. Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. Roller Lever Switches Note: Levers of the side rotary type are optionally available.
- Page 17 Two, M5 (length: 20) 16.5 (depth: 10) screws for screws for box back-mounting 29.4±0.2 29.5 1/2-14NPT conduit Adjustable M5 x 0.8 (length: 14 D4A-1@08N, D4A-2@08N Four, M4 (length: 12) Allen-head bolt screws for head 21.5 31.1 +0.2 dia. mounting holes 75.5...
- Page 18 2.6R 16.5 (depth: 10) screws for screws for box back-mounting 29.4±0.2 29.5 1/2-14NPT conduit Roller Plunger 11 dia. x 5 stainless steel roller D4A-1@10N, D4A-2@10N Four, M4 (length: 12) screws for head +0.2 dia. mounting holes 75.5 2.6R 59.5±0.2 70.5 Two, No.10-32UNF...
- Page 19 Note: 1. The stainless rod can be operated from any direction except the axial direction (i.e., from the top). 2. The optimum operating range of the stainless rod is within 1/3 of the entire length from the top end. D4A-@N...
- Page 20 Levers (for Roller Lever Switches) Note: No D4A-0003N or D4A-0004N head should be used with the adjustable roller lever or mechanical malfunctioning could result because the total weight of the adjustable roller lever is comparatively large. Use a standard-load head (D4A-0001N or D4A-0002N) instead.
- Page 21 38.1 38.1 (See note.) (See note.) Nylon Loop Lever D4A-F00 7.3 dia. M5 Allen bolt 25 max. Nylon M5 Allen bolt Note: A Fork Lever Lock can be used with D4A-@@05N models only. D4A-@N F-29 General-purpose Limit Switch...
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Page 22: Operation
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527. In the interest of product improvement, specifications are subject to change without notice.