LRD3357 Schneider Electric Industrial Automation Components
Part#:LRD3357
Manufacturer:Schneider Electric
Product Lifecycle:Active
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Schneider Electric LRD3357, part of the LRD sub-range, is a differential thermal overload relay designed for direct connection to a contactor. It features 3 poles and offers Class 10A protection functions. The rated current for this part is between 37-50 A, with protection settings specifically for thermal overload within the same range. It includes 1 Normally Open (NO) auxiliary contact and 1 Normally Closed (NC) auxiliary contact. The rated voltage for AC phase-to-phase, applicable up to 400Hz, is 690 V. The minimum current specification is 37 A, and it can handle a maximum current of 50 A.
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Product Details
- 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
- [Ui] Rated Insulation Voltage Power circuit 1000 V IEC 60947-4-1 Power circuit 600 V CSA Power circuit 600 V UL
- Mounting Support Plate, with specific accessories Rail, with specific accessories Under contactor
- 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
- Permissible Current 0.72 A 500 V AC-15 signalling circuit 0.06 A 440 V DC-13 signalling circuit
- Control Type Red push-button stop Blue push-button reset
- Associated Fuse Rating 4 A gG signalling circuit 4 A BS signalling circuit
- Network Type DC AC
- Product Compatibility LC1D95 LC1D80
- Height 3.19 in (81 mm)
- [Ue] Rated Operational Voltage 1000 V AC 0...400 Hz power circuit IEC 60947-4-1
- Depth 4.53 in (115 mm)
- Net Weight 1.12 lb(US) (0.51 kg)
- Width 2.76 in (70 mm)
- Temperature Compensation -4…140 °F (-20…60 °C)
- Phase Failure Sensitivity Tripping current 130 % of Ir on two phase, the last one at 0
- Auxiliary Contact Composition 1 NO + 1 NC
- [Uimp] Rated Impulse Withstand Voltage 6 kV IEC 60947-1
- [Ith] Conventional Free Air Thermal Current 5 A signalling circuit
- Tripping Threshold 1.14 +/- 0.06 Ir IEC 60947-4-1
- Network Frequency 0...400 Hz
- Relay Application Motor protection
- Thermal Protection Adjustment Range 37…50 A
- Thermal Overload Class Class 10A IEC 60947-4-1
- Product Name TeSys LRD
- Device Short Name LRD
- Product Or Component Type Differential thermal overload relay
- Range TeSys
Product condition
ORIGINAL PACKAGING
SURPLUS ORIGINAL PACKAGING - 100% unused and in original packaging
Related documents LRD3357 Specs
1-year warranty
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Schneider Electric Disclaimer:
The product is unused surplus. Quotebeam is not an authorized surplus dealer or affiliate for the Manufacturer of this product. Products may feature older date codes or be from an earlier series than what is currently available from the manufacturer or authorized dealers. Because Quotebeam is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Schneider Electric Controls products will have firmware already installed, Quotebeam makes no representation as to whether a Controls product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Quotebeam also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Schneider Electric, its distributors, or any other source. Quotebeam also makes no representations as to your right to install any such firmware on the product. Quotebeam will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.
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