- Contact Person : Ms. Yang Wendy
- Company Name : Wenzhou Mingneng Electrical Co., Ltd.
- Tel : 0086-0577-62712995
- Fax : 0086-0577-62712696
- Address : Zhejiang,YUEQING,No.2188 LiuHuang Road, Liushi, Yueqing City, Zhejiang Province. China
- Country/Region : China
- Zip : 325604
high temperature resistant limit switch
Introduction:
The interior part adopts fully sealed high temperature contact switches whose maximum allowable current is 5A/AC 220V. Since the contact is specially processed, 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.
Construction:
Every switch has roller, adjustable rod, pressure plunger to meet your different need.
Application:
It’s widely used in electrical, chemical, petroleum, textiles, steel and other industries.
Characteristics:
1. Temperature 250 °C2. Double circuit limit switch, widely used3. The one with solid cast aluminum housing4. High mechanical strength5. Resistant to oil, water & pressure6. Easy to maintenance 7. Easy to use8. Mechanical life is long
Specification:
1. Operating speed : 0.5mm to 50cm / sec 2. Frequency mechanical movement: 120 beats / min, electrical: 30 beats / min 3. Contact resistance: 25m Ω or less (initial) 4. Insulation resistance: 100m Ω above (under the 500VDC) 1000VAC, 50/60HZ for 1 minute (same polarity)Withstand voltage: 5. No-load current and load current between parts: 1500VAC, 50/60 HZ for 1 minute 6. Between each terminal and ground: 1500VAC, 50/60 HZ for 1 minute 7. Vibration 10-55HZ, 1.5mm double amplitude 8. The impact of mechanical durability: 1, 000m / Sec 2 (about 100G 'S more) 9. Malfunction: 300m / Sec 2 (about 30G 'S more)
Using conditions:1. Ambient temperature -10 °C to + 250 °C 2. Humidity <95% RH
Electrical Parameters:1. Service life of mechanical durability l: 15,000,000 times 2. Electrical: 500,000 times 3. Weight of about 275g 4. 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 | |||
More Photos:
high temperature resistant limit switch
