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参数资料
| 型号： | ELS-2-C-H |
| 厂商： | Curtis Industries |
| 文件页数： | 5/11页 |
| 文件大小： | 0K |
| 描述： | LIQUID LEVEL CONTROL 240VAC |
| 标准包装： | 1 |
| 系列： | ELS |
| 类型： | 电平控制 - 板 |
| 应用： | 充水和排水控制 |
| 安装类型： | 面板安装 |
| 电源电压： | 120/240 VAC |
| 其它名称： | Q3843720 |
Curtis liquid level control with
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time delay
Model LCT
Features
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Low Cost Control for Standard Applications up to 100,000 ohms
Built-in Delay-on-Make
Interchangeable with Curtis Model LCS Liquid Level Controls
Solid-State Amplifier with Potentiometer for Signal Sensitivity
Adjustment
Positive ON/OFF Operation Eliminates Relay Chatter
Circuit Limits Short-Circuit Probe Current to 10MA/24VAC
Holding Circuit for Differential Levels, or Manual Reset
Pre-wired Auxiliary Contactor Available for Handling Heavy
Loads and Motor Ratings Exceeding Capacity of Plug-in Relay
Specifications
Input Supply :
Model Input Supply
LCT-10 120VAC ±10%, 50/60 Hz
Delay on Release: 0.5 sec. ±50%
Open Circuit Probe Voltage : 24VAC
LCT-20 240VAC ±10%, 50/60 Hz
LCT-30 24VAC ±10%, 50/60 Hz.
Maximum Allowable Supply Voltage Variation : ± 10%
Maximum Power Consumption : 3 Watts
Sensitivity Range: 1,000 to 100,000 ohms
Detectable Range : Up to 100,000 ohms
Operating Point Differential : 3% (Typical)
Time Delay : Delay on Operate: 3 sec: ±50%
(Other values between 0.5 and 10 sec. available on request.)
Outline and Mounting Dimensions
Short Circuit Probe Current : 10MA
Control Relay : Plug-in type with dust cover
Contact Rating : 10 amp non-inductive, 1/4 HP at 120VAC, 1/3 HP at 240VAC
Auxiliary Contactor : DPST-NO-DB, rated 1 HP at 120VAC, 2 HP at 240VAC
Ambient Operating Temperature : 0° C to +60° C
Standard Termination : Barrier-type terminal blocks accepting wire up to No.
12AWG. Auxiliary contactor has combination screw/double .250” quick-connects
Mounting Style : Flange
Outside Dimensions : 5-1/2” long x 4-1/8” wide x 2-13/16” high
Connection Diagrams
Model LCT is a forward mode control. The control relay is energized when liquid rises to
contact the “H” probe. The time delay on operate is 3 seconds nominal and 0.5 seconds
on release. Other values between 0.5 and 10 seconds are available on request. The
control relay is pulled in and remains energized until liquid drops below the “L” probe.
Sensitivity is adjustable.
Ordering
Information
Typical Curtis Model Number
Model (Also refer to “Specifications” above)
LCT-20 - -
Contactor (add “C” if desired)
Enclosure – specify only if necessary –
N3-NEMA 3, N3C–NEMA 3/
Contactor, N4 – NEMA 4 JIC
The composite number above reads as an LCT amplifier for 240VAC supply, without enclosure and without contactor.
For further information on catalog listed controls contact your area Curtis Representative or Curtis distributor.
For custom design or modification contact your area Curtis Representative or the factory direct.
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