Datasheet > LLC24B1AC

LLC24B1AC

更新时间： 2023-12-06 20:12:56

品牌	Logo	应用领域
力特 - LITTELFUSE		/
页数	文件大小	规格书
2页	403K
描述
LLC24B1AC is a dual-probe conductive liquid level control with ac input voltage of 120 and adjustable sensing resistance to 100 k?.

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LLC24B1AC 数据手册

Protection Relays

Pump Controls and Liquid Level Controls

LLC2 SERIES

Open Board Liquid Level Controls

Description

The LLC2 Series is a dual-probe conductive liquid level control

designed for OEM equipment and commercial appliance

applications. Models are available for ﬁll or drain operation.

Transformer isolated 12VAC is provided at the probes to prevent

electrolysis. A trickle current of less than 1mA determines the

presence or absence of liquid between the probes and common.

On adjustable units, the sensitivity adjustment allows accurate

level sensing while ignoring foaming agents and ﬂoating debris.

The LLC2 Series printed circuit board is conformal coated to

resist moisture and corrosion.

Operation

Drain (Pump-Down Mode): When the liquid level rises and

touches the high probe, the output relay energizes and remains

energized until the liquid level falls below the low probe. The

output relay then de-energizes and remains de-energized until

the liquid again touches the high probe.

Wiring Diagram

Fill (Pump-Up Mode): When the liquid level falls below the low

probe, the output relay energizes and remains energized until

the liquid level rises and touches the high probe. The output

relay then de-energizes and remains de-energized until the liquid

level again falls below the low probe.

V = Voltage

L = Low Probe

H = High Probe

C = Probe Common

P = Probe

∆S = Sensitivity

Adjustment

NC = Normally

Closed

NO = Normally

Open

Features & Beneﬁts

FEATURES

BENEFITS

Isolated 12VAC probes

Prevents scale buildup on the probes

Metal Tank or use

additional Probe

Cost effective design for OEM equipment and

commercial appliances

Open PCB design

Connect common to conductive tank. Additional

probe is necessary for non-conductive or

insulated tanks.

Conformally coated PCB

Sensitivity adjustment

Protects against moisture and corrosion

N/L2

Provides accurate level sensing while ignoring foam

or ﬂoating debris

Accessories

P1015-13 (AWG 10/12), P1015-64 (AWG 14/16),

P1015-14 (AWG 18/22) Female Quick Connect

These 0.25 in. (6.35 mm) female terminals are

constructed with an insulator barrel to provide

strain relief.

Ordering Information

INPUT

SENSE

RESISTANCE

MODEL

OPERATION TERMINATION

VOLTAGE

P1015-18 Quick Connect to Screw Adapter

Screw adapter terminal designed for use with

all modules with 0.25 in. (6.35 mm) male quick

connect terminals.

Adjustable

to 100kΩ

120VAC

LLC24A2AN

LLC24A2F50N

LLC24B1AC

Drain

Fill

Terminal block

120VAC

Terminal block Fixed 50kΩ

0.25”

Adjustable

Quick connect to 100kΩ

PHST-38QTN Electrode

Designed for a maximum steam pressure of

240 PSI; 400° F. UL353 Recognized.

0.25”

120VAC

230VAC

LLC24B1F26C

LLC24B2F50N

LLC26A1F25C

Fill

Fixed 26kΩ

Quick connect

LLP-24 Threaded Probe (24”)

Threaded stainless steel probe measuring 24”

(61 cm) long. For use with PHST-38QTN liquid

level control electrodes.

Fill

Terminal block Fixed 50kΩ

0.25”

Drain

Fixed 25kΩ

Quick connect

If you don’t ﬁnd the part you need, call us for a custom product 800-843-8848

www.littelfuse.com/llc2

Rev: 1-A-062716

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LLC42A10A	LITTELFUSE	LLC42A10A is a single-probe liquid level control with ac input voltage of 24 and a fixed t	获取价格
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