Tel: +86 0755 2300 6274

Phone: +86 189 2677 7882


Add: Block A,Co-talent Creative Wisdom Park,No.18 Shangliao Industrial Road,Xinqiao Community, Bao'an District,Shenzhen,China

Emergency Shunt Relay (ESR)

  •   LC-ESRLCU-107


  •   Product description
    ・Emergency lighting load control relays.
    ・Conforms To UL STD 924.
    ・Operating Voltage: 100Vac to 277Vac / 140Vdc to 390Vdc.
    ・Operating Temperature: -25℃ to +70℃.
    ・Built-in DALI PSU, 15V / 200mA.

    Signal Relay Specification
    ・One (1) SPDT Continuous Duty Coil.
    ・1 Million Cycles Minimum Mechanical Lifetime.
    ・Operate Time: 3mS.
    ・Maximum Switching Load Voltage:250Vac / 30Vdc.
    ・Maximum Switching Load Current:1A.

  • Data sheet
  • Feedback


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  Ordering Information            

  Full Product Code


  Full Product Name

 Relay CU

  Input Information                  

  Input Voltage

 100 ~ 277Vac / 140 ~ 390Vdc

  Input Curren

 0.1A max.

  Input Frequency

 50 / 60Hz

  Min. Operational Voltage 

 85Vac / 100Vdc

  Max. Operational Voltage

 300Vac / 420Vdc 

  Start Time ≤ 0.5S

  Inrush Current

 Cold start ≤ 45A @ 277Vac (twidth=200us measured at 10% Ipeak), per NEMA 410

  Output Information               

  DALI Output Voltage Range

 14Vdc to 17Vdc

  DALI Max. Output Voltage


  DALI Typ. Output Voltage


  DALI Min. Output Voltage


  DALI Guaranteed Output Current


  DALI Max. Output Current


  DALI Max. Output Power


  DALI Output Voltage Ripple

 ≤ 5% @ guaranteed output current

  Environment & Approbation 

  Protection Rating


  Ambient Temp Range

 -20℃ to +70℃

  Max. Case Temperature[Tcase]

 85℃ (please refer to Tc point location)

  Operating Condition

 Damp and dry

  Safety Standards

 UL 924: 2016 Ed.10+R: 01 May 2018, CSA C22.2 # 141: 2015 Ed.5

 IEC 61347-1, IEC 61347-2-13  

  EMC Emission

 Compliance to FCC Part 15, CAN ICES-005, IEC 55015

  EMC Immunity

 Compliance to IEC 61000-4-2,6, IEC 61547 

  Audible Noise

 < 24dB Class A

  LINE DIAGRAM - Normal / Emergency - (2-wire) Driver - w/ Relay CU (integrated PSU) - w/ (2-wire) SU

LC-ESRLCU-107 1.png

  LINE DIAGRAM - Normal / Emergency - (2-wire) Driver (integrated PSU) - w/ Relay CU - w/ (2-wire) SU

LC-ESRLCU-107 2.png                           


  Dimensions & Weight

Case Length  3.75"95.3

DALICU04-EN-2 尺寸.png

Case Width  2.378"60.4                            
Case Height  1.023"26
Weight  0.55Ib/0.25Kg

  Cable Specification

Input wire specifications:

 Color Cable Length Connector definition
 White 18AWG 12"/304mm AC Input Neutral
 Black 18AWG 12"/304mm AC Input Line
 Brown/Wht 18AWG 12"/304mm Signal Relay ( N/O )
 Wht/Violet 18AWG 12"/304mm Signal Relay ( COMM )
 Violet 18AWG 12"/304mm DA+
 Pink 18AWG 12"/304mm DA- / Signal Relay ( N/C )