Square D LAL36350 | 5B917 | Circuit Breaker, 350A, 3 Pole, 600VAC, Lug

Q: How do I clean and maintain Square D LAL36350 pressure switch?

Turn off power to ensure safety during maintenance.Perform visual checks for dirt, debris and corrosion.Use a soft cloth to gently wipe down the switch.Use compressed air to remove dust from hard-to-reach areas.Inspect and tighten terminals if needed.Test the switch's functionality periodically.Verify and adjust setpoints if required.

Specifications

Item	Circuit Breaker
Ac Voltage Rating	600V AC
Actuator Type	Toggle
Amps	350A
Circuit Breaker Actuator	Toggle
Circuit Breaker Application	HACR Rated
Circuit Breaker Mounting Style	Free Standing
Circuit Breaker Type	Standard
Component Type	Circuit Breaker
Dc Voltage	250V DC
Dc Voltage Rating	250V AC
Depth	5.84"
Electrical Connection	Lugs, Load, Line
For Use With	Busway Plug In Units, Combination Starters, Industrial Enclosures, Motor Control Centers, Panelboards, Switchboards
Frame Size	400A, LA
Height	11"
High Amp Trip Setting	3500A
Instantaneous Trip	Adjustable
Line Rated Amps	350A
Low Amp Trip Setting	1750A
Magnetic Hold Amps	1750A
Magnetic Hold Current	1750A

Magnetic Tripping Amps	3500A
Magnetic Tripping Current	3500A
Max. Air Rating	42 kA At 240V AC
Max. Wire Size	250 mcm, 600 mcm
Min. Wire Size	1/0 AWG
Mounting	Free Standing
Mounting Mode	Unit Mount
Mounting Style	Unit
No. Of Poles	3
Number Of Poles	3
Phase	3
Phase Connection	ABC
Returnability	Yes
Series	Lal Series
Standards	Csa, Iec, Ul Listed
Terminal Connection	Lug
Terminal Connection Type	Lug
Tightening Torque	115.06 lbf.in. @ 0.07 sq. in. to 0.5 sq. in. @ 1 AWG to 600 kcmil, 115.06 lbf.in. @ 0.07 sq. in. to 0.2 sq. in. @ 1 AWG to 250 kcmil
Trip Type	Thermal Magnetic
Trip Unit Technology	Thermal-Magnetic
Width	6"
Warranty	18 Months

Product Details

Square D LAL36350 pressure switch is used to monitor and control pressure levels within equipment or systems. It accurately detects pressure changes for optimal operation, preventing overpressure and safeguarding equipment. This pressure switch is utilised in manufacturing, automation and HVAC applications to maintain desired pressure ranges.

Shipping Information

Height (cm)	27.94
Length (cm)	14.83
Width (cm)	15.24

HS Code	8536200040
Country Of Origin	MX
Weight (kg)	6.7275

Working Mechanism

When the pressure surpasses a predetermined threshold, the pressure switch's mechanism is activated.
The switch's diaphragm actuation mechanism reacts to changes in pressure, triggering further action.
As the diaphragm moves, the SPDT contact configuration switches position.
This contact position change either opens or closes an electrical circuit.
The alteration in the circuit's state prompts the system to respond accordingly. For instance, it might initiate equipment shutdown or activate warning alarms.
When pressure returns to an acceptable range, the pressure switch resets itself.
With the reset, the pressure switch reinstates the electrical circuit, allowing the system to resume its normal operation.

Features

It features an adjustable instantaneous trip for precise customisation of circuit protection thresholds.
This pressure switch has 3-pole, 3-phase and thermal-magnetic trip protection for enhanced safety from electric hazards.
It comes with line & load lug terminals for easy connection.
This Square D circuit breaker has a current rating of 350A, voltage rating of 600VAC / 250 VDC and a maximum interrupt current rating of 42kA at 240VAC.

Documentation

Certifications

Frequently Asked Questions

How do I clean and maintain Square D LAL36350 pressure switch?

Turn off power to ensure safety during maintenance.
Perform visual checks for dirt, debris and corrosion.
Use a soft cloth to gently wipe down the switch.
Use compressed air to remove dust from hard-to-reach areas.
Inspect and tighten terminals if needed.
Test the switch's functionality periodically.
Verify and adjust setpoints if required.

How do I install this pressure switch?

Prioritise safety by turning off the power supply before beginning installation.
Confirm pressure switch suitability and compatibility with your application's requirements.
Disconnect power to ensure a safe working environment.
If replacing an old switch, disconnect and remove it.
Follow the manufacturer's wiring diagram to connect power source and load wires to the pressure switch terminals.
Attach the pressure line from your system to the pressure port on the pressure switch.
Securely mount the pressure switch in a stable location using appropriate hardware.
Adjust pressure switch settings like cut-in and cut-out pressures according to your system's needs.
Test the pressure switch's functionality after ensuring all connections are secure.
Seal access panels, insulate connections and restore power to complete the installation process.

What factors should I consider while choosing a pressure switch?

Ensure compatibility with your system's pressure requirements.
Match voltage, current and type to your system.
Opt for flexibility with adjustable setpoints.
Consider precision and hysteresis to prevent frequent cycling.
Verify suitable protection and placement for your setting.

SQUARE D LAL36350 Circuit Breaker, 350A, 3 Pole, 600VAC, Lug

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