Datasheet > LLC54AAS

LLC54AAS

更新时间： 2024-11-21 14:56:35

品牌	Logo	应用领域
力特 - LITTELFUSE		/
页数	文件大小	规格书
2页	448K
描述
LLC54AAS provides dual-probe conductive liquid level control with ac input voltage of 120 and adjustable sensing resistance to 100 k?.

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LLC54AAS 数据手册

Protection Relays

Pump Controls and Liquid Level Controls

LLC5 SERIES

Liquid Level Controls

Description

The LLC5 provides dual probe conductive liquid level control

in a convenient octal plug-in package. Models are available

for ﬁxed ﬁll or drain operation. Isolated, pulsed DC voltage

on the probes prevents electrolytic plating. Less than 1 mA

of current is used to sense the presence of conductive liquid

between the probes and common. On adjustable units, the

sensitivity adjustment eliminates false tripping caused by

ﬂoating debris and foaming agents.

Operation

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

and touches the high level probe, the output relay and LED

energize and remain energized until the liquid level falls below

the low level probe. The output relay and LED de-energize and

remain de-energized until the liquid rises and touches the high

level probe.

8-PIN

Wiring Diagram

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

the low level probe, the output relay and LED energize and

remain energized until the liquid level rises and touches the

high level probe. The output relay and LED de-energize and

remain de-energized until the liquid level again falls below the

low level probe.

HP = HIGH LEVEL PROBE

LP = LOW LEVEL PROBE

C = PROBE COMMON

V = VOLTAGE

Relay contacts are isolated.

Connect common to

conductive tank. Additional

probe is necessary for non-

conductive or insulated tanks.

Metal Tank or use

additional Probe

Features & Beneﬁts

N/L2

FEATURES

BENEFITS

Unique Probe

Protection logic

Probes are protected from scale build up through

pulsed DC signal between the probes.

Visual indication of relay engagement in pump-up or

pump-down activity

LED status indicatior

Isolated 5A

SPDT contacts

Ordering Information

Allows control of loads for AC voltage

LINE

VOLTAGE

MODEL

DESCRIPTION

Accessories

For Drain (pump-down) operation with

adjustable sense resistance

LLC52AA

LLC52BA

LLC54AA

24VAC

BZ1 Front Panel Mount Kit

Provides an easy method of through-the-panel

mounting of 8- or 11-pin plug-in timers, ﬂashers,

and other controls.

For Fill (pump-up) operation with adjustable

sense resistance

24VAC

For Drain (pump-down) operation with

adjustable sense resistance

120VAC

NDS-8 Octal 8-pin Socket

8-pin 35mm DIN rail or surface mount. Rated

at 10A @ 300VAC. Surface mounted with two

#6 (M 3.5 x 0.6) screws or snaps onto a 35 mm

DIN rail. Uses PSC8 hold-down clips.

For Drain (pump-down) operation with

adjustable sense resistance and reverse

connection (#8 low, #6 high)

LLC54AAS

120VAC

For Drain (pump-down) operation with ﬁxed

sense resistance of 10 kΩ

LLC54AF10

LLC54BA

120VAC

PSC8 Hold-down Clips

Securely mounts plug-in controls in any position.

Provides protection against vibration. Use with

NDS-8 Octal Socket. Sold in pairs.

For Fill (pump-up) operation with adjustable

sense resistance

For Fill (pump-up) operation with adjustable

sense resistance and reverse connection

(#8 low, #6 high)

Note: use of the PSC8 clips partley covers the LED window of

the LLC5 unit. Use of alternative socket base P1011-6 with its

corresponding hold down clips PSCRB8 do not cover up the LED

window, but the socket base is not DIN rail mountable.

LLC54BAS

LLC56AA

120VAC

230 VAC

For Drain (pump-down) operation with

adjustable sense resistance

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

www.littelfuse.com/LLC5

Rev: 1-A-062116

中文翻译

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与LLC54AAS相关器件

型号	品牌	获取价格	描述	数据表
LLC54AF10	LITTELFUSE	获取价格	LLC54AF10 provides dual-probe conductive liquid level control with ac input voltage of 120
LLC54BA	LITTELFUSE	获取价格	LLC54BA provides dual-probe conductive liquid level control with ac input voltage of 120 a
LLC54BAS	LITTELFUSE	获取价格	LLC54BAS provides dual-probe conductive liquid level control with ac input voltage of 120
LLC56AA	LITTELFUSE	获取价格	LLC56AA provides dual-probe conductive liquid level control with ac input voltage of 230 a
LLC6210F10M	LITTELFUSE	获取价格	LIQUID LEVEL-CUTOFF 24VAC 10S
LLC6410F10M	LITTELFUSE	获取价格	LIQUID LEVEL CONTROL
LLC643F26M	LITTELFUSE	获取价格	LIQUID LEVEL CUTOFF/120VA
LLC6610F5P	LITTELFUSE	获取价格	LIQUID LEVEL-CUTOFF 24VAC 2S
LLC825F5M	LITTELFUSE	获取价格	LLC825F5M is a low level, conductive liquid l
LLC842F103M	LITTELFUSE	获取价格	The LLC8 Series is a low cost, single-probe conductive liquid level control designed for l

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