Schneider Electric
TeSys Deca thermal overload relays - 12...18 A - class 20
SKU: LRD21L
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Tesys Deca thermal overload relays are designed to protect a.c. circuits and motors against overloads.
New modern look & feel of all machines
Easier to install and operate with multi-standard screws
Environmental Data
TeSys Deca Overload Relays
Tesys Deca thermal overload relays are designed to protect a.c. circuits and motors against overloads.
New modern look & feel of all machines
Easier to install and operate with multi-standard screws
Digital customer experience for technical documents
Maintenance guide via EcoStruxureTM Facility Expert
LRD21L is a TeSys LRD thermal overload relay from Schneider Electric to be used with a TeSys D contactor. It protects motors 7.5kW@400V thanks to a thermal range 12-18A, a tripping class 20 and phase unbalance protection. LRD21L is a TeSys LRD thermal overload relay from Schneider Electric for direct mounting on TeSys D contactors. With a thermal setting range 12-18A, a tripping class 20 and phase unbalance detection, it protects motors 7.5kW@400V. It provides manual test & reset buttons, automatic reset, trip auxiliary contact and flag indicator. Available worldwide, it is multi-standards certified (IEC, UL, CSA, CCC, EAC, Marine). Thermal overload protection relay, bimetallic type, with phase unbalance protection (differential). Direct mounting on the bottom terminals of a Tesys contactor LC1D18-D38 to form a compact starter. Light and compact, 45mm wide. Temperature compensated for a good accuracy of the protection. Manual control with test & reset buttons, manual / automatic reset selector. Trip signaling with 1NO+1NC auxiliary contacts and trip flag indicator. Can be completed with terminal blocks for separate mounting (LAD7B, LAD96) and remote control devices (LAD703, LA7D03).
Main
Range
Product name
Product or Component Type
Differential thermal overload relay
Device short name
LRD
Relay application
Motor protection
Product Compatibility
Network type
Thermal overload class
Class 20 IEC 60947-4-1
Thermal protection adjustment range
12…18 A
[Ui] rated insulation voltage
Complementary
Network Frequency
0...400 Hz
Mounting support
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
[Ue] rated operational voltage
690 V AC 0...400 Hz power circuit IEC 60947-4-1
Associated fuse rating
[Uimp] rated impulse withstand voltage
6 kV
Phase failure sensitivity
Tripping current 130 % of Ir on two phase, the last one at 0
Control type
Temperature compensation
-4…140 °F (-20…60 °C)
Connections - terminals
Tightening torque
Height
2.6 in (66 mm)
Width
1.8 in (45 mm)
Depth
3.0 in (76 mm)
Net Weight
0.317 lb(US) (0.144 kg)
Environmental footprint
Total lifecycle Carbon footprint
13 kg CO2 eq.
Carbon footprint of the manufacturing phase [A1 to A3]
1 kg CO2 eq.
Carbon footprint of the distribution phase [A4]
0 kg CO2 eq.
Carbon footprint of the installation phase [A5]
0 kg CO2 eq.
Carbon footprint of the use phase [B2, B3, B4, B6]
12 kg CO2 eq.
Carbon footprint of the end-of-life phase [C1 to C4]
0.2 kg CO2 eq.
Environmental Disclosure
Product Environmental ProfileUse Better
Materials and Substances
Packaging made with recycled cardboard
Yes
Packaging without single use plastic
Yes
SCIP Number
224fb0ea-2bc1-482e-b6b4-c1bdd9779659
EU RoHS Directive
CompliantREACh Regulation
Free of Substances of Very High Concern above the thresholdCalifornia proposition 65
WARNING: This product can expose you to chemicals including: Antimony oxide & Antimony trioxide, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov
Use Again
Repack and remanufacture
Recyclability potential, in %
50
Circularity Profile
End of Life InformationTake-back
No
WEEE Label
The product must be disposed on European Union markets following specific waste collection and never end up in rubbish bins.