Description

Schneider EUCR-05S | Electronic undercurrent relay, EOCR Digital, 0.5 to 6A, 24 to 240VAC/DC, Standard

1. Technical Specifications 

  • Model: EUCR-05S (EOCR Digital)
  • Type: Electronic Undercurrent Relay
  • Current Range: 0.5A – 6A
  • Operating Voltage: 24 – 240V AC/DC
  • Trip Function: Protects against undercurrent and phase loss
  • Mounting Type: DIN Rail or Panel Mount
  • Response Time: Adjustable trip delay for precision protection
  • Standards Compliance: IEC & UL certified

2. Features:

Advanced Protection: Detects undercurrent conditions and prevents damage to motors and equipment.
Wide Voltage Range: Operates with both AC and DC supplies (24-240V).
Digital Precision: Ensures accurate and reliable monitoring.
Adjustable Settings: Allows fine-tuning of trip delay and sensitivity.
Compact & Easy to Install: Designed for quick DIN rail or panel mounting.
Enhanced Safety: Prevents motor burnouts and system failures due to phase loss.

3. Applications:

Industrial Motor Protection: Prevents damage due to low current conditions.
Pumps & Compressors: Ensures proper operation and prevents dry running.
HVAC Systems: Protects fans and blowers from undercurrent faults.
Automation & Control Panels: Ensures smooth functioning of critical processes.

4. Why Choose Schneider EUCR-05S?

  • Reliable Performance: Manufactured by Schneider Electric, a global leader in electrical protection.
  • Versatile & Flexible: Supports multiple voltage inputs and a wide current range.
  • Digital Accuracy: Provides precise detection of undercurrent issues.
  • Easy Installation & Configuration: Reduces downtime and simplifies maintenance.

Additional information

brands

Schneider Electric

Specifications

Main
Range of product EOCR
Device short name EUCR
Product or component type Protection relay
Protection type Underload, In < UC setting
Product specific application Undercurrent protection
network type AC
Network frequency 50...60 Hz
protection ajustment range 0.5…6 A
Tripping threshold 0.5...6 A
Complementary
[Us] rated supply voltage 220 V AC
Mounting support 35 mm DIN rail
Contacts type and composition 1 C/O (OL)
Short-circuit and overload protection By 4 A gG fuse
[Ue] rated operational voltage 600 V AC 50...60 Hz for power circuit conforming to UL 690 V AC 50...60 Hz for power circuit conforming to CSA 690 V AC 50...60 Hz for power circuit conforming to IEC 60947-4-1
[Uimp] rated impulse withstand voltage 6 kV conforming to IEC 60947-4-1
Reset Manual reset Electrical 0…1 s by interruption of power supply
Time delay type O-Time: 0.2...30 s
Display type 1 LED
power consumption per relay 2 W
Connections - terminals Control circuit: lug-clamp 2 x 1…2.5 mm²flexible without cable end - M3.5 Control circuit: cable 2 x 1…2.5 mm²flexible without cable end - M3.5 Control circuit: cable 2 x 1…2.5 mm²flexible with cable end - M3.5
Tightening torque Control circuit: 1.7 N.m on lug-clamp, cable, 7 mm
Height 60 mm
Width 54 mm
Depth 65 mm
Product weight 0.155 kg
Environment
Standards IEC 60947-4-1
IP degree of protection IP20 conforming to IEC 60529
Ambient air temperature for operation -20…60 °C conforming to IEC 60947-4-1
Ambient air temperature for storage -30…80 °C
Operating altitude 2000 m
Fire resistance 650 °C conforming to IEC 60695-2-12 960 °C conforming to UL 94
Shock resistance 15 gn for 11 ms conforming to IEC 60068-2-7
Vibration resistance 4 gn on panel mounting conforming to IEC 60068-2-6 2 gn on 35 mm DIN rail conforming to IEC 60068-2-6
Dielectric strength 2 kV 50...60 Hz in between case and circuit conforming to IEC 60255-5 1 kV 50...60 Hz in between contact conforming to IEC 60255-5 2 kV 50...60 Hz in between circuit conforming to IEC 60255-5
Surge withstand 6 kV conforming to IEC 61000-4-5
Electromagnetic compatibility Resistance to radiated electromagnetic fields: 10 V/m level 3 conforming to IEC 61000-4-3 Resistance to electrostatic discharge: 8 kV air, 6 kV contact conforming to IEC 61000-4-2 Resistance to fast transient: 2 kV conforming to IEC 61000-4-4 Conducted RF disturbances: 10 V conforming to EN 61000-4-6 Conducted RF disturbances: class A conforming to EN 55011
[Ith] conventional free air thermal current 5 A for control circuit
Permissible current 125 V, 5 A
Packing Units
Unit Type of Package 1 PCE
Number of Units in Package 1 1
Package 1 Height 5.9 cm
Package 1 Width 8.2 cm
Package 1 Length 7.9 cm
Package 1 Weight 179.3 g

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