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Help CenterHeat Resistant Position Limit Switch JDHK-3L
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Specifications
Ambient Operating temperature 550 Deg C, 1022 Deg FHighest working temperature 650 Deg C, 1202 Deg F
Heat Resistant Position Limit Switch
Introduction:
The interior part is used fully sealed high temperature contact switches whose maximum allowable current is 5A/AC 220V. Since the contact is suffered special treatment, it can be used in high temperature environment for a long time without failure from oxidization or pollution.
The highest temperature of JDHK-2 series is 350 °C, while the long term working temperature is 250 °C. As for JDHK-3 series, The highest temperature is 650 °C, while the long term working temperature is 550 °C. It has filled the domestic blank of ultra-high temperature switch field. Every switch has roller, adjustable rod, pressure plunger to meet your different need. It’s widely used in electrical, chemical, petroleum, textiles, steel and other industries.
Characteristics:
Temperature 550 °C
Double circuit limit switch, widely used
The one with solid cast aluminum housing
High mechanical strength
Resistant to oil, water & pressure
Easy to maintenance
Easy to use
Mechanical life is long
Specification:
Operating speed : 0.5mm to 50cm / sec
Frequency mechanical movement: 120 beats / min, electrical: 30 beats / min
Contact resistance: 25m Ω or less (initial)
Insulation resistance: 100m Ω above (under the 500VDC) 1000VAC, 50/60HZ for 1 minute (same polarity)
Withstand voltage:
No-load current and load current between parts: 1500VAC, 50/60 HZ for 1 minute
Between each terminal and ground: 1500VAC, 50/60 HZ for 1 minute
Vibration 10-55HZ, 1.5mm double amplitude
The impact of mechanical durability: 1, 000m / Sec 2 (about 100G 'S more)
Malfunction: 300m / Sec 2 (about 30G 'S more)
Ambient temperature -10 °C to + 250 °C
Humidity <95% RH
Service life of mechanical durability l: 15,000,000 times
Electrical: 500,000 times
Weight of about 275g
Degree of protection IP67
| Rated Votage | Non-inductive Load( A ) | Inductive Load ( A ) | ||||||
| (V) | Resistive Load | Bulb Load | Inductive Load | Motor Load | ||||
| NC | NO | NC | NO | NC | NO | NC | NO | |
| 125VAC | 10 | 3 | 1.5 | 10 | 5 | 2 | ||
| 250VAC | 5 | 2 | 1 | 5 | 3 | 1 | ||
| 480VAC | 3 | 1.5 | 0.8 | 3 | 1.5 | 0.8 | ||
| 600VAC | 1 | 1 | 0.5 | 1.5 | 1 | 0.5 | ||
| 8VDC | 10 | 6 | 3 | 10 | 6 | |||
| 14VDC | 10 | 6 | 3 | 10 | 6 | |||
| 30VDC | 6 | 4 | 3 | 6 | 4 | |||
| 125VDC | 0.8 | 0.2 | 0.2 | 0.8 | 0.2 | |||
| 250VDC | 0.4 | 0.1 | 0.1 | 0.4 | 0.1 | |||
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