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LRD14 | Schneider Electric Thermal Overload Relay
- Regular price
- $55.00
- Sale price
- $55.00
- Regular price
-
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Product Description P/N: LRD14
Description
The TeSys LRD14 thermal overload relay by Schneider Electric is designed for the protection of 3-phase motors rated at 4 kW at 400 V. It has a thermal setting range of 7 to 10 amperes and a tripping class of 10A. This device operates at a maximum voltage of 690 V. The relay features a differential device that detects phase failure and load unbalance.
Technical Specifications
|
Part # |
LRD14 |
|
Category |
Contactors & Starters |
|
Subcategory |
Solid State Overload/Relay |
|
Device Short Name |
LRD |
|
Relay Application |
Motor protection |
|
Network Type |
AC, DC |
|
Thermal Overload Class |
Class 10A IEC 60947-4-1 |
|
Thermal Protection Range |
7…10 A |
|
Network Frequency |
0...400 Hz |
|
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 signaling circuit |
|
Permissible Current |
3 A 120 V AC-15 signaling circuit |
|
|
0.22 A 125 V DC-13 signaling circuit |
|
[Ue] Rated Operational Voltage |
690 V AC 0...400 Hz power circuit IEC 60947-4-1 |
|
Associated Fuse Rating |
4 A gG for signaling circuit |
|
|
4 A BS for signaling circuit |
|
[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 |
Red push-button stop |
|
|
Blue push-button reset |
|
Temperature Compensation |
-4…140 °F (-20…60 °C) |
|
Height |
2.60 in (66 mm) |
|
Width |
1.77 in (45 mm) |
|
Depth |
2.76 in (70 mm) |
|
Net Weight |
0.27 lb (0.124 kg) |
|
Climatic Withstand |
IACS E10 |
|
IP Degree of Protection |
IP20 conforming to IEC 60529 |
|
Ambient Air Temperature for Operation |
-4…140 °F (-20…60 °C) without derating IEC 60947-4-1 |
|
Ambient Air Temperature for Storage |
-76…158 °F (-60…70 °C) |
|
Flame Retardance |
V1 UL 94 |
|
Mechanical Robustness |
Vibration 6 Gn IEC 60068-2-6 |
|
|
Shocks 15 Gn for 11 ms IEC 60068-2-7 |
|
Dielectric Strength |
1.89 kV 50 Hz IEC 60947-1 |
Information About LRD14
The LRD14 is a thermal overload relay manufactured by Schneider Electric under the TeSys LRD series. It is designed to provide protection for 3-phase motors rated at 4 kW when operating at 400V. This relay has a current rating of 10A and a voltage rating of 690V. The thermal setting range is adjustable from 7 to 10A, with a tripping class of 10A.
Equipped with a differential device, the LRD14 offers phase failure and load unbalance detection capabilities. It features various functional components including a thermal adjustment dial, a manual-automatic reset selector, a test selector for simulating tripping conditions, reset and stop buttons, a flag indicator, and 2 auxiliary contacts (1NO+1NC) for fault signaling.
The settings of the relay are safeguarded by a transparent cover that can be sealed to prevent tampering. Connection is facilitated through screw clamp terminals, allowing direct attachment to the bottom terminals of 3-pole contactors LC1D09-D38. The LRD14 can be mounted on a DIN rail or fixed using screws, and it can be separated from the contactor if needed, utilizing a terminal block LAD7B106 (sold separately).
Manufacturer Information
Schneider Electric, a global leader in energy management and automation, offers innovative solutions for efficiency and sustainability. With a diverse portfolio spanning power distribution, automation, and renewable energy, Schneider Electric is committed to shaping a more connected and sustainable future.
Description
The TeSys LRD14 thermal overload relay by Schneider Electric is designed for the protection of 3-phase motors rated at 4 kW at 400 V. It has a thermal setting range of 7 to 10 amperes and a tripping class of 10A. This device operates at a maximum voltage of 690 V. The relay features a differential device that detects phase failure and load unbalance.
Technical Specifications
|
Part # |
LRD14 |
|
Category |
Contactors & Starters |
|
Subcategory |
Solid State Overload/Relay |
|
Device Short Name |
LRD |
|
Relay Application |
Motor protection |
|
Network Type |
AC, DC |
|
Thermal Overload Class |
Class 10A IEC 60947-4-1 |
|
Thermal Protection Range |
7…10 A |
|
Network Frequency |
0...400 Hz |
|
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 signaling circuit |
|
Permissible Current |
3 A 120 V AC-15 signaling circuit |
|
|
0.22 A 125 V DC-13 signaling circuit |
|
[Ue] Rated Operational Voltage |
690 V AC 0...400 Hz power circuit IEC 60947-4-1 |
|
Associated Fuse Rating |
4 A gG for signaling circuit |
|
|
4 A BS for signaling circuit |
|
[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 |
Red push-button stop |
|
|
Blue push-button reset |
|
Temperature Compensation |
-4…140 °F (-20…60 °C) |
|
Height |
2.60 in (66 mm) |
|
Width |
1.77 in (45 mm) |
|
Depth |
2.76 in (70 mm) |
|
Net Weight |
0.27 lb (0.124 kg) |
|
Climatic Withstand |
IACS E10 |
|
IP Degree of Protection |
IP20 conforming to IEC 60529 |
|
Ambient Air Temperature for Operation |
-4…140 °F (-20…60 °C) without derating IEC 60947-4-1 |
|
Ambient Air Temperature for Storage |
-76…158 °F (-60…70 °C) |
|
Flame Retardance |
V1 UL 94 |
|
Mechanical Robustness |
Vibration 6 Gn IEC 60068-2-6 |
|
|
Shocks 15 Gn for 11 ms IEC 60068-2-7 |
|
Dielectric Strength |
1.89 kV 50 Hz IEC 60947-1 |
Information About LRD14
The LRD14 is a thermal overload relay manufactured by Schneider Electric under the TeSys LRD series. It is designed to provide protection for 3-phase motors rated at 4 kW when operating at 400V. This relay has a current rating of 10A and a voltage rating of 690V. The thermal setting range is adjustable from 7 to 10A, with a tripping class of 10A.
Equipped with a differential device, the LRD14 offers phase failure and load unbalance detection capabilities. It features various functional components including a thermal adjustment dial, a manual-automatic reset selector, a test selector for simulating tripping conditions, reset and stop buttons, a flag indicator, and 2 auxiliary contacts (1NO+1NC) for fault signaling.
The settings of the relay are safeguarded by a transparent cover that can be sealed to prevent tampering. Connection is facilitated through screw clamp terminals, allowing direct attachment to the bottom terminals of 3-pole contactors LC1D09-D38. The LRD14 can be mounted on a DIN rail or fixed using screws, and it can be separated from the contactor if needed, utilizing a terminal block LAD7B106 (sold separately).
Manufacturer Information
Schneider Electric, a global leader in energy management and automation, offers innovative solutions for efficiency and sustainability. With a diverse portfolio spanning power distribution, automation, and renewable energy, Schneider Electric is committed to shaping a more connected and sustainable future.