LRD21L Schneider Electric Industrial Automation Components
Part#:LRD21L
Manufacturer:Schneider Electric
Product Lifecycle:Active
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Schneider Electric LRD21L, part of the LRD sub-range, is a differential thermal overload relay designed for direct connection to a contactor and features screw-clamp connections for both outgoing cables and the control circuit. This 3-pole device offers protection functions classified as Class 20, with a rated current range of 12-18 A. It includes protection settings for thermal overload within the same range (12-18A) and is equipped with 1 Normally Open (NO) and 1 Normally Closed (NC) auxiliary contacts. The rated voltage for phase-to-phase operation, applicable for frequencies up to 400Hz, is 690 V. The minimum and maximum current specifications are set at 12 A and 18 A, respectively.
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Product Details
- Connections - Terminals 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 m
- Product Compatibility LC1D25 LC1D18 LC1D32 LC1D38
- Mounting Support Plate, with specific accessories Rail, with specific accessories Under contactor
- [Ui] Rated Insulation Voltage Power circuit 600 V CSA Power circuit 600 V UL Power circuit 690 V IEC 60947-4-1
- Control Type Red push-button stop Blue push-button reset
- Tightening Torque Control circuit 15.05 lbf.in (1.7 N.m) screw clamp terminals Power circuit 15.05 lbf.in (1.7 N.m) screw clamp terminals
- Network Type DC AC
- Associated Fuse Rating 4 A gG signalling circuit 4 A BS signalling circuit
- Permissible Current 3 A 120 V AC-15 signalling circuit 0.22 A 125 V DC-13 signalling circuit
- Depth 2.99 in (76 mm)
- Height 2.60 in (66 mm)
- Width 1.77 in (45 mm)
- Net Weight 0.32 lb(US) (0.144 kg)
- Temperature Compensation -4…140 °F (-20…60 °C)
- Phase Failure Sensitivity Tripping current 130 % of Ir on two phase, the last one at 0
- [Ue] Rated Operational Voltage 690 V AC 0...400 Hz power circuit IEC 60947-4-1
- [Ith] Conventional Free Air Thermal Current 5 A signalling circuit
- Auxiliary Contact Composition 1 NO + 1 NC
- [Uimp] Rated Impulse Withstand Voltage 6 kV
- Tripping Threshold 1.14 +/- 0.06 Ir IEC 60947-4-1
- Thermal Overload Class Class 20 IEC 60947-4-1
- Network Frequency 0...400 Hz
- Thermal Protection Adjustment Range 12…18 A
- Product Or Component Type Differential thermal overload relay
- Product Name TeSys LRD
- Relay Application Motor protection
- Device Short Name LRD
- Range TeSys
Product condition
ORIGINAL PACKAGING
SURPLUS ORIGINAL PACKAGING - 100% unused and in original packaging
Related documents LRD21L 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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