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Picture of Electronic overcurrent relay, TeSys LR97D, 24VAC/DC, 5 to 25A, 1C/O
SKU:

LR97D25B

Electronic overcurrent relay, TeSys LR97D, 24VAC/DC, 5 to 25A, 1C/O

$240.47
Available for Shipping : 20-Jan-2025
Electronic overcurrent relay, TeSys LR97D, 24VAC/DC, 5 to 25A, 1C/O
  • Settings can be locked by sealing the transparent cover
  • It provides 3 dials to adjust the protection
  • Compact (45 mm wide) for easy integration into motor starter functions
  • Reduces production loss and associated downtime
  • Simple setting and signaling features
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Manufacturer: Schneider Electric
Instruction sheet
Catalogue
Product Page Link
Product Data Sheet
TeSys LR97D electronic overcurrent relay, 25A/690V, to be supplied with 24V AC/DC, for protection of motors with a rated current 5-21A. It provides 3 dials to adjust the protection, LOAD (5-25A) 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. Settings also include selectors for 1-phase/3-phase motors and manual/automatic reset, the device has a reset button, a test/stop button, 2 LED indicators (Run/Trip), 2 auxiliary contacts 1NO/NC for fault signaling. Settings can be locked by sealing the transparent cover. For direct attachment to the bottom terminals of a 3-phase contactor LC1D09-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.

Products specifications

Attribute name Attribute value
Main
Device short name LR97
Device application protection
Product compatibility LC1D09...D38
Quantity per set set of 10
[Us] rated supply voltage 24 V AC/DC
Product or component type electronic overcurrent relay
Relay application sensitivity to phase failure, locked rotor, mechanical jamming I > 3 x Isetting, overload Imax > Isetting
Network type DC, AC
Thermal protection adjustment range 5-25 A
[Ue] rated operational voltage 690 V AC 50/60 Hz for power circuit conforming to IEC 60947-4-1, 600 V AC 50/60 Hz for power circuit conforming to UL, 600 V AC 50/60 Hz for power circuit conforming to CSA
Complementary
Compatibility code LR97
Tripping threshold 5...21 A
Surge withstand 6 kV conforming to IEC 61000-4-5
Connections - terminals control circuit: lug-clamp 1 x 1-25 mm²flexible with cable end, control circuit: cable 2 x 1-25 mm²flexible without cable end, control circuit: cable 2 x 1-25 mm²flexible with cable end, power circuit: lug-clamp 1 x 1.5-10 mm²flexible without cable end, power circuit: lug-clamp 1 x 1-4 mm²flexible with cable end, power circuit: cable 1 x 1.5-10 mm²flexible without cable end, power circuit: cable 1 x 1-4 mm²flexible with cable end, control circuit: cable 1 x 1-25 mm²flexible without cable end, control circuit: lug-clamp 2 x 1-25 mm²flexible without cable end, control circuit: lug-clamp 2 x 1-25 mm²flexible with cable end, control circuit: lug-clamp 1 x 1-25 mm²flexible without cable end, control circuit: cable 1 x 1-25 mm²flexible with cable end
Protection type gG fuse 3 A - for control circuit, GB2 circuit breaker 3 A - for control circuit, BS fuse 3 A - for control circuit
Phase failure sensitivity < 3 s
[Ith] conventional free air thermal current 3 A for control circuit
Height 67.5 mm
Maximum power 70 VA at 24 V AC conforming to IEC 60947, 360 VA at 220 V AC conforming to IEC 60947, 360 VA at 110 V AC conforming to IEC 60947, 140 VA at 48 V AC conforming to IEC 60947, 55 W at 48 V DC conforming to IEC 60947, 55 W at 24 V DC conforming to IEC 60947, 28 W at 220 V DC conforming to IEC 60947, 28 W at 110 V DC conforming to IEC 60947
Depth 67.5 mm
Width 45 mm
Mounting support rail, direct on contactor
Contacts type and composition 1 C/O
[Ui] rated insulation voltage power circuit: 690 V conforming to IEC 60947-4-1, power circuit: 600 V conforming to UL, power circuit: 600 V conforming to CSA
[Uimp] rated impulse withstand voltage 6 kV
Net weight 0.172 kg
Signalling function 2 LEDs
Reset manual reset, electrical by interruption of power supply for minimum 0.1 s, automatic reset 120 s fixed
Tightening torque power circuit: 2 N.m on cable, control circuit: 0.6...1.2 N.m on lug-clamp
Network frequency 50...60 Hz
Time range 0.5..30 s - D-time knob, 0.3...10 s - O-time knob, 0.2...10 s - O-time knob
Environment
Resistance to fast transients 2 kV
Fire resistance 850 °C conforming to IEC 60695-2-1
Resistance to electrostatic discharge 8 kV in air, 6 kV in indirect mode
Protective treatment TH conforming to IEC 60068
Ambient air temperature for storage -30-80 °C
IP degree of protection IP20 conforming to IEC 60529
Shock resistance 15 gn 11 ms conforming to IEC 60068-2-7
Ambient air temperature for operation -25-60 °C conforming to IEC 60947-4-1
Disturbance radiated/conducted class A conforming to EN 55011, 10 V conforming to EN 61000-4-6
Operating altitude 2000 m
Vibration resistance 4 gn conforming to IEC 60068-2-6
Dielectric strength 2 V 50 Hz conforming to IEC 60255-5
Resistance to radiated fields 10 V/m level 3
Standards IEC 60255-6, IEC 60947
Product certifications CSA, GOST, UL
Packing Units
Unit Type of Package 1 1
Number of Units in Package 1 1
Package 1 Height 5.2 cm
Package 1 Width 7.7 cm
Package 1 Length 7.2 cm
Package 1 Weight 177.0 g
Unit Type of Package 2 2
Number of Units in Package 2 24
Package 2 Height 15.0 cm
Package 2 Width 30.0 cm
Package 2 Length 40.0 cm
Package 2 Weight 4.703 kg
Unit Type of Package 3 3
Number of Units in Package 3 384
Package 3 Height 77.0 cm
Package 3 Width 80.0 cm
Package 3 Length 60.0 cm
Package 3 Weight 83.748 kg

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