W.A. ELECTRIC CONTROLS传感器CR9440系列CR9440-QM4A技术参数及介绍
W.A. ELECTRIC CONTROLS传感器CR9440系列CR9440-QM4A技术参数及介绍
W.A. ELECTRIC CONTROLS配电产品包括标准电机控制产品（按钮、引导装置、传感器、启动器等）、断路器、面板、母线槽和变压器。
W.A. ELECTRIC CONTROLS传感器CR9440系列技术参数
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CR 9440-QS2 LIMIT SWITCH
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Number of contacts
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One set normally open
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Contact Rating
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0.1A,125V or 12.5VA
non-inductive up to 1.0A(to 250V)
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Contact Resistance
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25-50 milliohms
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Breakdown Voltage (Min.)
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500V RMS,60 Hertz
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Operating Time
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1.0 millisecond up to 400Hz
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Ambient Temperature Limits
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-65°C to 90°C
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CR 9440-QST2 PROXIMITY SWITCH
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Number of contacts
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One set normally open
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Contact Rating
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4A cont., 125V AC @ 40 °C
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Ambient Temperature Limits
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-40 °C to 90 °C
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Operating Time
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1.0 millisecond up to 400 Hertz
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W.A. ELECTRIC CONTROLS传感器CR9440系列介绍
CR9440 系列是磁力操作限位或接近传感器系列，用于运动部件之间不可能或不需要物理接触的场合。它们的外壳符合 CSA I 类 C 和 D 组和 II 类 F 和 G 组危险场所的额定值。
CR9440-QS2 磁探测器限位传感器包含一个封装的速动触点元件。当置于磁场中时，此触点将关闭。
CR9440-QST2 Traic 磁性接近传感器具有 NO Triac 电路，当传感器置于磁场中时该电路会导通。当磁场充分减小或移除时，电路恢复到不导电状态。
• 易于维护——无需进行电气或机械调整。
• 紧凑型设计 - CR9440-QS2 磁力限位传感器只有 4-9/16" 长 X 3/4" 直径。
• CSA 批准用于危险场所应用。
• 可靠性——环氧树脂封装可防止潮湿、灰尘和腐蚀剂。
• 快速操作 - 1 毫秒操作时间高达 400 赫兹。
• 低温运行 - CR9440-QS2 低至 -65°C，CR9440-QST2 低至 -40°C。
• 通用电气 CR115X2 兼容替代品。
The CR9440 series is our line of magnetically operated limit or proximity switches utilized where physical contact between moving parts is impossible or undesirable. Their enclosures meet the ratings for CSA Class I Groups C & D and Class II Groups F & G hazardous locations.
The CR9440-QS2 Magnetector Limit Switch incorporates an encapsulated snap-action contact element. This contact will close when placed in a magnetic field.
The CR9440-QST2 Traic Magnetic Proximity Switch has a N.O. Triac Circuit which becomes conducting when the switch is placed in a magnetic field. The circuit reverts to non-conducting when the magnetic field is sufficiently reduced or removed.
• Easy to maintain-no electrical or mechanical adjustments necessary.
• Compact design - the CR9440-QS2 Magnetector Limit Switch is only 4-9/16" long X 3/4" diameter.
• CSA Approved for hazardous location applications.
• Reliability-epoxy encapsulation protects against moisture, dust and corrosive agents.
• Fast operation - 1 millisecond operating time up to 400 Hz.
• Low temperature operation - down to -65°C for the CR9440-QS2 and -40°C for the CR9440-QST2.
• General Electric CR115X2 compatible alternative.
W.A. ELECTRIC SWITCH CONTROLS传感器CR9440系列其他常用型号：
W.A. ELECTRIC CONTROLS CR9440-QM2A
W.A. ELECTRIC CONTROLS CR9440-QM3A
W.A. ELECTRIC CONTROLS CR9440-QM4A
W.A. ELECTRIC CONTROLS CR9440-QM5A