Schneider Electric TeSys LR97D electronic overload relay for motor - 20...38 A - 200...240 V AC

LR97D38M7
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Description

TeSys LR97D electronic overcurrent relay, 38A/690V, to be supplied with 200-240V AC, for protection of motors with a rated current 20-34A. It provides 3 dials to adjust the protection, LOAD (20-38A) for the overcurrent level, O-TIME (0.3-10sec) for the acceptable duration of the overcurrent, D-TIME (0.5-30sec) for the starting duration. In addition, the device trips when the current is higher than 3 x LOAD during more than 0.5sec in steady state and if there is a missing phase during more than 3sec. The settings include selectors for 1-phase/3-phase motors and manual/automatic reset, and the device has a reset button, a test/stop button, 2 LED indicators (Run/Trip), 2 auxiliary contacts 1NO/NC for fault signalling. Settings can be locked by sealing the transparent cover. For direct attachement to the bottom terminals of a 3-pole contactor LC1D25-D38, with screw clamp terminals on bottom, the separate mounting from the contactor is possible using the terminal block LAD7B106 (to be ordered separately). Multi-standards certified (IEC, UL, CSA, CCC, EAC), compliant RoHs/Reach.

Product Details

Activity PPCTR
Show Accessory No
Weight (in Kg) 0.181
Net weight 0.172 kg
Quantity Per Set set of 10
[Us] rated supply voltage 200...240 V AC
Product Or Component Type electronic overcurrent relay
Protective Treatment TH conforming to IEC 60068
Reset automatic reset 120 s fixed
electrical by interruption of power supply for minimum 0.1 s
manual reset
Tripping Threshold 20...34 A
Network frequency 50...60 Hz
Resistance To Radiated Fields 10 V/m level 3
Thermal Protection Adjustment Range 20-38 A
[IP] Degree of Protection IP20 conforming to IEC 60529
Connections Terminals control circuit: cable 1 x 1-25 mm²flexible with cable end
power circuit: cable 1 x 2.5-10 mm²flexible with cable end
power circuit: lug-clamp 1 x 1-6 mm²flexible without cable end
power circuit: lug-clamp 1 x 2.5-10 mm²flexible with cable end
control circuit: cable 1 x 1-25 mm²flexible without cable end
control circuit: cable 2 x 1-25 mm²flexible without cable end
control circuit: lug-clamp 1 x 1-25 mm²flexible with cable end
control circuit: lug-clamp 1 x 1-25 mm²flexible without cable end
control circuit: lug-clamp 2 x 1-25 mm²flexible with cable end
control circuit: lug-clamp 2 x 1-25 mm²flexible without cable end
control circuit: cable 2 x 1-25 mm²
power circuit: cable 1 x 1-6 mm²flexible without cable end
Contacts Type and Composition 1 C/O
[Uimp] Rated Impulse Wthstand Voltage 6 kV
phase_failure_sensitivity < 3 s
protection_type BS fuse 3 A - for control circuit
GB2 circuit breaker 3 A - for control circuit
gG fuse 3 A - for control circuit
Ambient air temperature for operation -25-60 °C conforming to IEC 60947-4-1
Tightening Torque control circuit: 0.6...1.2 N.m on lug-clamp
power circuit: 2 N.m on cable
Standards IEC 60947
IEC 60255-6
Product Certifications CSA
GOST
UL
[Ith] Conventional Free Air Thermal Current 3 A for control circuit
[ui] Rated Insulation Voltage power circuit: 600 V conforming to CSA
power circuit: 600 V conforming to UL
power circuit: 690 V conforming to IEC 60947-4-1
Mounting support direct on contactor
rail
Fire Resistance 850 °C conforming to IEC 60695-2-1
Product Compatibility LC1D25...D38
Relay Application overload Imax > Isetting
sensitivity to phase failure
locked rotor, mechanical jamming I > 3 x Isetting
Dielectric Strength 2 V 50 Hz conforming to IEC 60255-5
Disturbance Radiated/Conducted 10 V conforming to EN 61000-4-6
class A conforming to EN 55011
Maximum Power 28 W at 110 V DC conforming to IEC 60947
28 W at 220 V DC conforming to IEC 60947
55 W at 24 V DC conforming to IEC 60947
55 W at 48 V DC conforming to IEC 60947
140 VA at 48 V AC conforming to IEC 60947
360 VA at 110 V AC conforming to IEC 60947
360 VA at 220 V AC conforming to IEC 60947
70 VA at 24 V AC conforming to IEC 60947
Resistance to Electrostatic Discharge 6 kV in indirect mode
8 kV in air
Resistance To Fast Transients 2 kV
Shock Resistance 15 gn 11 ms conforming to IEC 60068-2-7
Time Range 0.2...10 s - O-time knob
0.3...10 s - O-time knob
0.5..30 s - D-time knob
Device short name LR97
Depth 67.5 mm
Ambient air temperature for storage -30-80 °C
Height 67.5 mm
width 45 mm
Operating altitude 2000 m
Compatibility code LR97
Surge Withstand 6 kV conforming to IEC 61000-4-5
Network type AC
Signalling Function 2 LEDs
Vibration Resistance 4 gn conforming to IEC 60068-2-6
[Ue] Rated Operational Voltage 600 V AC 50/60 Hz for power circuit conforming to CSA
600 V AC 50/60 Hz for power circuit conforming to UL
690 V AC 50/60 Hz for power circuit conforming to IEC 60947-4-1
Brand Schneider Electric

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