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SKU: LRD21
Category: Relay
Overload Relay
Brand:
Schneider
Model:
LRD21
Description
TeSys LRD
thermal overload relay, 18A/690V, thermal setting range 12-18A, tripping class
10A, for protection of 3-phase motors 7.5kW@400V. Differential device with
phase failure and load unbalance detection. It provides a thermal adjustment
dial, a manual-automatic reset selector, a test selector for simulation of a
trip, reset and stop buttons, a flag indicator, and 2 auxiliary contacts (1NO
and 1NC) for fault signaling. Settings are protected by a transparent cover
lockable by sealing. Connection by screw clamp terminals: it connects directly
to the bottom terminals of 3-pole contactors LC1D18-D38. Mounting on DIN rail
or screw fixing, separated from the contactor, with use of a terminal block
LAD7B106 (to be ordered separately). Multi standards certified (IEC, UL, CSA,
CCC, EAC, ATEX, Marine), Green Premium compliant (RoHs/Reach).
Technical Data
|
Network
Frequency |
0...400 Hz |
|
Mounting
Support |
Plate, with specific accessories |
|
Tripping
Threshold |
1.14 +/- 0.06 Ir conforming to IEC
60947-4-1 |
|
Auxiliary
Contact Composition |
1 NO + 1 NC |
|
[Ith]
conventional free air thermal current |
5 A for signalling circuit |
|
Permissible
Current |
1.5 A at 240 V AC-15 for signalling
circuit |
|
[Ue]
Rated Operational Voltage |
690 V AC 0...400 Hz for power circuit
conforming to IEC 60947-4-1 |
|
Associated
Fuse Rating |
4 A gG for signalling circuit |
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