LRD21 Schneider Electric Industrial Automation Components
Part#:LRD21
Manufacturer:Schneider Electric
Product Lifecycle:Active
In-stock parts: 50
Dec 23, 2024
Schneider Electric LRD21, part of the LRD sub-range, is a differential thermal overload relay designed for direct connection to a contactor and features screw-clamp terminals for both upstream and outgoing cables in the control circuit. This 3-pole device offers protection functions classified as Class 10A, with a rated current range of 12-18 A. It includes protection settings for thermal overload within the same range. The LRD21 is equipped with 1 Normally Open (NO) and 1 Normally Closed (NC) auxiliary contacts. It supports a rated voltage (AC) phase-to-phase of up to 690 V at frequencies from 0 to 400Hz, with a minimum operating current of 12 A and a maximum of 18 A.
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Product Details
- Product Compatibility LC1D32 LC1D18 LC1D25 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
- 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
- Network Type AC DC
- Permissible Current 1.5 A 240 V AC-15 signalling circuit 0.1 A 250 V DC-13 signalling circuit
- Tightening Torque Control circuit 15.05 lbf.in (1.7 N.m) screw clamp terminals Power circuit 22.13 lbf.in (2.5 N.m) screw clamp terminals
- Associated Fuse Rating 4 A gG signalling circuit 4 A BS signalling circuit
- Control Type Red push-button stop Blue push-button reset
- Width 1.77 in (45 mm)
- [Ue] Rated Operational Voltage 690 V AC 0...400 Hz power circuit IEC 60947-4-1
- Depth 2.76 in (70 mm)
- Net Weight 0.27 lb(US) (0.124 kg)
- Height 2.60 in (66 mm)
- Phase Failure Sensitivity Tripping current 130 % of Ir on two phase, the last one at 0
- [Uimp] Rated Impulse Withstand Voltage 6 kV
- Temperature Compensation -4…140 °F (-20…60 °C)
- Auxiliary Contact Composition 1 NO + 1 NC
- Network Frequency 0...400 Hz
- Tripping Threshold 1.14 +/- 0.06 Ir IEC 60947-4-1
- [Ith] Conventional Free Air Thermal Current 5 A signalling circuit
- Device Short Name LRD
- Product Name TeSys LRD
- Thermal Protection Adjustment Range 12…18 A
- Thermal Overload Class Class 10A IEC 60947-4-1
- Relay Application Motor protection
- 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 LRD21 Specs
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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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