Compact Heavy Equipment Limit Switch [D4A-*N]
Caution
- The product images are representative only. Specifications may vary by part number, including shape and color.
Product Description
Compact heavy equipment limit switch with improved seal, impact-resistance and load-resistance.
[Features]
· Double sealing structure of the rotary shaft has been further reinforced and the gasket full cover system, etc., ensures sealing.
· Models with fluoroelastomer available separately for effective resistance to chemicals.
· A block mount method is adopted to minimize time loss during maintenance.
· Four circuit double-break models available for complex operations.
Drawing
Rotating Lever Type
*The dimensional tolerance for the parts not specified in the drawings of each model above is +/- 0.4 mm.
Product Specification
Performance
| Protective Structure (compliant) | IP67, NEMA standards 1, 2, 3, 4, 4X, 5, 6P, 12, 13 | |
|---|---|---|
| Durability*2 | Mechanical*1 | More than 50 million times (for 2-circuit double-break rotating Lever Type) More than 30 million times (for 4-circuit double-break rotating lever type) |
| Electrical | More than 1 million times (2-circuit double-break type: 125 V AC 10 A with a resistant load) More than 750,000 times (4-circuit double-break type: 125 V AC 5 A with a resistant load) | |
| Allowable operation speed | 1 mm to 2 m/s (D4A-3101N, rotating lever type) | |
| Allowable operation frequency | Mechanical | 300 times/min |
| Electrical | 30 times/min | |
| Rated frequency | 50/60 Hz | |
| Insulation resistance | Between same-pole terminals, between current-carrying metal parts and ground, between each terminal and non-current-carrying metal parts 100 MΩ or more (500 V DC insulation resistance tester) | |
| Contact resistance | 25 mΩ or less (initial value) | |
| Temperature rise | 50 degrees or less | |
| Withstand voltage | Between terminals of the same polarity | 1,000 V AC 50/60 Hz for 1 min |
| Between current-carrying metal parts and ground | 2,200 V AC 50/60 Hz 1 min*3 | |
| Between each terminal and non-current-carrying metal part | 2,200 V AC 50/60 Hz 1 min*3 | |
| Pollution degree (operating environment) | 3 | |
| Appliance Class | Class I (with earth terminal) | |
| Vibration | Malfunction*4 | 10 to 55 Hz double amplitude 1.5 mm |
| Impact | Endurance | Max. 1,000 m/s2 |
| Malfunction*4 | Max. 600 m/s² 2-circuit double-break rotating lever type Max. 300 m/s² 4-circuit double-break rotating lever type | |
| Operating ambient humidity | 35 to 95%RH (no freezing) | |
| Weight | Approximately 290 g (D4A-3101N rotating lever type) | |
*The values given above are initial values.
* 1. Excluding holding type.
* 2. The durability values are based on an ambient temperature of 5 to 35℃ and an ambient humidity of 40 to 70% RH, but durability varies depending on the type of load and the magnitude of the current.
* 3. 1,500 V AC for models with an indicator light.
* 4. Excluding flexible rod type (cat whisker type, plastic rod type, coil spring type, spring wire type).
| Items | Type | ||
|---|---|---|---|
| Rotating lever type*1 | Plunger type, flexible rod type*2 | With indicator light | |
| Operating ambient temperature | -40 to +100°C | -20 to +100°C | -10 to +80°C |
* 1. Excluding light operating type and high-sensitivity light operating type.
* 2. Including rotating lever type light operating type and high-sensitivity light operating type.
Specifications Table
Rotating Lever Type
*The values in the parentheses are average values.