Schneider Electric LT4706M7S Electronic Over Current Relays, Tesys Lt47, Manual, 0.5 to 6A, 200 to 240Vac

TeSys LR47 electronic overcurrent relay, 6A/690V, with manual reset, to be supplied with 200-240V AC, for protection of motors with a rated current 0.5-5A. It provides 3 dials to adjust the protection, LOAD (0.5-6A) 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 there is a missing phase during more than O-TIME. The device has a reset button, a test/stop button, 2 LED indicators (Run/Trip), 2 auxiliary contacts 1NO+1NC for fault signalling. Settings can be locked by sealing the transparent cover. DIN rail mounting, without power terminals (currents monitored by 2 current transformers crossed by the motor cables). Multi standards certified (IEC, UL, CSA, CCC, EAC), it conforms to RoHS/REACh regulation.

Main

• Range: TeSys
• Product Name: TeSys LT
• Product or Component Type: Electronic Overcurrent Relay
• Device Short Name: LT47
• Device Application: Protection Relay Application
• Overload: Imax > Isetting
• Sensitivity to Phase Failure: Locked Rotor, Mechanical Jamming I > 3 x Isetting
• [Us] Rated Supply Voltage: 200...240 V AC
• Thermal Protection Adjustment Range: 0.5…6 A
• [Ui] Rated Insulation Voltage:
• Power Circuit: 600 V AC (Conforming to CSA)
• Power Circuit: 600 V AC (Conforming to UL)
• Power Circuit: 690 V AC (Conforming to IEC 60947-4-1)

Complementary

Network Frequency: 50...60 Hz
Mounting Support: Rail
Tripping Threshold: 0.5...5 A
Electromagnetic Compatibility:

• Resistance to electrostatic discharge: 8 kV in open air (conforming to IEC 61000-4-2)
• Resistance to electrostatic discharge: 6 kV in direct mode (conforming to IEC 61000-4-2)
• Conducted emission: class A (conforming to EN 55011)
• Immunity to electromagnetic interference: 10 V/m (conforming to IEC 61000-4-3)
• Immunity to fast transients: 2 kV (conforming to IEC 61000-4-4)
• Surge withstand: 6 kV (conforming to IEC 61000-4-5)
• Conducted HF disturbances: 10 V (conforming to IEC 61000-4-6)

Auxiliary Contact Composition: 1 NO + 1 NC
[Ith] Conventional Free Air Thermal Current: 3 A for signalling circuit
Associated Fuse Rating:

• 3 A gG for signalling circuit
• 3 A BS for signalling circuit

[Uimp] Rated Impulse Withstand Voltage: 6 kV
Time Range:

• Control type D-time: 0.5...30 s
• Control type O-time: 0.3...10 s

Local Signalling:

• 1 LED (green)
• 1 LED (red)

Control Type:

• Push-button: reset
• Electrical: reset

Connections - Terminals:

• Signalling circuit: screw clamp terminals 1 (1…2.5 mm²) - cable stiffness: flexible with cable end
• Signalling circuit: screw clamp terminals 1 (1…2.5 mm²) - cable stiffness: flexible without cable end
• Signalling circuit: screw clamp terminals 2 (1…2.5 mm²) - cable stiffness: flexible with cable end
• Signalling circuit: screw clamp terminals 2 (1…2.5 mm²) - cable stiffness: flexible without cable end

Tightening Torque:

• Signalling circuit: 1.7 N.m M3.5

Height: 70.3 mm
Width: 71 mm
Depth: 77.2 mm
Net Weight: 0.192 kg

Environment

Standards:

• IEC 60255-6
• IEC 60947

Product Certifications:

• UL
• CSA

Protective Treatment:

• TH conforming to IEC 60068

IP Degree of Protection:

• IP20 conforming to IEC 60529
• IP20 conforming to VDE 0106

Ambient Air Temperature:

• For Operation: -25…60 °C without derating (conforming to IEC 60947-4-1)
• For Storage: -30…80 °C

Operating Altitude: Up to 2000 m

Mechanical Robustness:

• Shocks: 15 Gn for 11 ms (conforming to IEC 60068-2-7)
• Vibrations: 4 gn (conforming to IEC 60068-2-6)

Dielectric Strength: 2 kV at 50 Hz (conforming to IEC 60255-5)