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Brand: Schneider Electric (Square D)SKU: LRD3353

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LRD3353 | BIMETALLIC OVERLOAD RELAY | Schneider Electric (Square D)

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Overview

Details for LRD3353

Overload protection: Schneider Electric (Square D) LRD3353The Schneider Electric (Square D) LRD3353 is an overload relay designed to protect motors from damage caused by excessive current. It is commonly used in industrial and commercial applications to prevent motor burnout and ensure reliable operation.Key Features:- Provides Overload Protection: The LRD3353 protects motors from damage due to overcurrents, preventing costly repairs and downtime.- Adjustable Trip Setting: The trip setting can be adjusted to match the specific motor requirements, ensuring optimal protection for a wide range of motor sizes.- Thermal-Magnetic Protection: Combines thermal and magnetic sensing elements for fast and accurate detection of overload conditions.- Compact Design: Features a compact design for easy installation in control panels or enclosures.- Durable Construction: Built to withstand harsh industrial environments, ensuring reliable operation over an extended period.- Easy Installation: Designed for quick and hassle-free installation, minimizing downtime during maintenance or upgrades.Benefits:- Protects Motors: Prevents motor burnout and damage, extending the lifespan of critical equipment.- Ensures Reliable Operation: Provides reliable overload protection, ensuring uninterrupted operation of motor-driven systems.- Adjustable Protection: Allows customization of protection settings to meet specific motor requirements.- Compact and Durable: Its compact design and durable construction make it suitable for various industrial applications.- Easy to Install: Minimizes downtime during installation or maintenance, reducing operational disruptions.Shop now at our HVAC supply store- We offer the best prices and fast shipping for your products! TeSys LRD overload relays are designed to be used with TeSys D contactors to make a motor starter. This overload relay can be used with 80 amp through 95 amp TeSys D contactors. These differential thermal overload relays detect over currents in the lines to the motor. When an overcurrent is detected the overload relay working with the contactor will disconnect the power to the motor. This will minimize the damage to the motor windings. This overload relay has an adjustable trip current rating of 23 to 32 amperes. This trip current rating is calibrated per Class 10A. Multi standards certified (IEC, UL, CSA, CCC, EAC, ATEX, Marine), Green Premium compliant (RoHs/Reach).

Specifications

range: TeSys
product name: TeSys LRD;TeSys Deca
Product or Component Type: Differential thermal overload relay
device short name: LRD
relay application: Motor protection
Product Compatibility: LC1D80;LC1D95
network type: AC;DC
thermal overload class: Class 10A IEC 60947-4-1
thermal protection adjustment range: 23…32 A
[Ui] rated insulation voltage: Power circuit 1000 V IEC 60947-4-1;Power circuit 600 V CSA;Power circuit 600 V UL
Network Frequency: 0...400 Hz
mounting support: Plate;with specific accessories;Rail;with specific accessories;Under contactor
tripping threshold: 1.14 +/- 0.06 Ir IEC 60947-4-1
auxiliary contact composition: 1 NO + 1 NC
[Ith] conventional free air thermal current: 5 A signalling circuit
permissible current: 0.72 A 500 V AC-15 signalling circuit;0.06 A 440 V DC-13 signalling circuit
[Ue] rated operational voltage: 1000 V AC 0...400 Hz power circuit IEC 60947-4-1
associated fuse rating: 4 A gG signalling circuit;4 A BS signalling circuit
[Uimp] rated impulse withstand voltage: 6 kV IEC 60947-1
phase failure sensitivity: Tripping current 130 % of Ir on two phase;the last one at 0
control type: Red push-button stop;Blue push-button reset
temperature compensation: -4…140 °F (-20…60 °C)
connections - terminals: Power circuit screw clamp terminals 1 0.01…0.05 in² (4…35 mm²) flexible without cable end;Power circuit screw clamp terminals 1 0.01…0.05 in² (4…35 mm²) flexible with cable end;Power circuit screw clamp terminals 1 0.01…0.05 in² (4…35 mm²) solid without cable end;Control circuit screw clamp terminals 2 0.00…0.00 in² (1…2.5 mm²) flexible without cable end;Control circuit screw clamp terminals 2 0.00…0.00 in² (1…2.5 mm²) flexible with cable end;Control circuit screw clamp terminals 2 0.00…0.00 in² (1…2.5 mm²) solid without cable end
tightening torque: Control circuit 15.05 lbf.in (1.7 N.m) screw clamp terminals;Power circuit 79.66 lbf.in (9 N.m) screw clamp terminals
Height: 3.19 in (81 mm)
Width: 2.76 in (70 mm)
Depth: 4.53 in (115 mm)
Net Weight: 1.12 lb(US) (0.51 kg)
climatic withstand: IACS E10
IP degree of protection: IP20 conforming to IEC 60529
ambient air temperature for operation: -4…140 °F (-20…60 °C) without derating IEC 60947-4-1
Ambient Air Temperature for Storage: -76…158 °F (-60…70 °C)
flame retardance: V1 conforming to UL 94
mechanical robustness: Vibrations6 Gn IEC 60068-2-6;Shocks15 Gn for 11 ms IEC 60068-2-7
dielectric strength: 2.2 kV 50 Hz IEC 60947-1
Standards: EN/IEC 60947-4-1;EN/IEC 60947-5-1;UL 60947-4-1;UL 60947-5-1;CSA C22.2 No 60947-4-1;CSA C22.2 No 60947-5-1;GB/T 14048.4;GB/T 14048.5;EN 50495
Product Certifications: IEC;UL;CSA;CCC;EAC;ATEX INERIS;UKCA
Category: 22347-CONTACTOR;D-LINE;OVERLOADS-NEW
Discount Schedule: I12
GTIN: 3389110519921
Returnability: Yes
Country of origin: FR
Unit Type of Package 1: PCE
Number of Units in Package 1: 1
Package 1 Height: 3.15 in (8.0 cm)
Package 1 Width: 3.46 in (8.8 cm)
Package 1 Length: 4.72 in (12.0 cm)
Package 1 Weight: 17.57 oz (498.0 g)
Unit Type of Package 2: S02
Number of Units in Package 2: 12
Package 2 Height: 5.91 in (15.0 cm)
Package 2 Width: 11.81 in (30.0 cm)
Package 2 Length: 15.75 in (40.0 cm)
Package 2 Weight: 13.93 lb(US) (6.32 kg)
Unit Type of Package 3: P06
Number of Units in Package 3: 192
Package 3 Height: 30.31 in (77.0 cm)
Package 3 Width: 31.50 in (80.0 cm)
Package 3 Length: 23.62 in (60.0 cm)
Package 3 Weight: 241.67 lb(US) (109.62 kg)
Warranty: 18 months