Mechanical Indicator Relay




  • one of the most popular general purpose relays: 10A relay (relé industrial, relé de propósito general, relé de potencia)
  • 16A relay is avilable on market right now!!
  • can replace the below relays:

             Omron relay: MJN

             Zelio relay (Schneide): RUMF

             Magnecraft relay: 788

             Finder relay: 62

             ** more cross reference detail? please check this link **

  • mechianical latching relay by manual button
  • lockable test button by one easy step, switching the lever
  • wide choice of coil volts: 6V, 12V, 24V, 48V, 110V, 120V, 220V, 230V, 240V
  • relay socket BTA3-11A, BTA3-11AN (W/ finger protection)
  • square base relay
  • we do have a relay which is the same structure but octal base relay, it is our BTA6.  and it is UL listed: E115915


  • 2 contact load:

          * 10 amp 28vdc, 10 amp 240vac

          * 16 amp 28vdc, 16 amp 277vac

  • terminal types: plug-in style ( sockets are avialable!!)
  • cover choice; dust cover
  • functions: LED indicator, flag indicator, manual button (lockable test button)
  • volts range:

          DC relay: 6V, 12V, 24V, 48V, 110V

          AC relay: 110V, 120V, 220V, 230V, 240V

  • relay socket (din rail base):

           * BTA3-11A for 2C/ 3C

           * BTA3-11AN for 2C/3C (finger protection)

End Applications

  • electric rolling door
  • power control system/ industrial automation
  • printing machine


  • BETA relay has been a relay manufacturer almost 50 years (El relé BETA ha sido un fabricante de relés durante casi 50 años.)
  • BETA relay has worked with world famous brand as their OEM/ ODM over 25 years. (Relé BETA ha trabajado con marca de fama mundial como su OEM / ODM más de 25 años)
  • Our insistence on quality and service has earned beta relay a good reputation among our users and clients.(Nuestra insistencia en la calidad y el servicio ha ganado relé beta de una buena reputación entre nuestros usuarios y clientes.)
  • We are specialized in industrial relay (BTA3, BTA2, BTA5, BTA7), general purpose relay (BLY5, BMY5, BTA6), miniature relay (BLY5, BMY5).Estamos especializados en el relé industrial (BTA3,BTA2, BTA5, BTA7), relé de propósito general (BLY5, BMY5, BTA6), relé miniatura (BLY5, BMY5).
  • See more about BETA relay, please click “ABOUT US”. (Ver más sobre relé BETA, por favor haga clic en "Sobre nosotros".)


  • Shows relay status in manual or powered condition.
  • Shows coil“on”or“off”status ideal in low light conditions.
  • Allows for manual operation of relay without the need for coil power. ideal for field service personnel to test control circuits
  • When activated, holds push button and contacts in the operate position. excellent for analyzing circuit problems
  • The full feature relay includes the combination for rotary button or plain button or light or indicator flag. they can be chosen for every combination
  • Allows operator to remove relays from sockets more easily than conventional relays
  • Used for identification of relays in multi-relay circuits


Type Contact form 假日價Standard With LED and flag With LEDpush button and flag With LED, lock downpush button and flag
房型S type terminal 平日價DPDT BTA7-2C-S-CW BTA7-2C-S-CL BTA7-2C-S-CML BTA7-2C-S-CM4L
房型P type terminal 平日價DPDT BTA7-2C-P-CW BTA7-2C-P-CL BTA7-2C-P-CML BTA7-2C-P-CM4L
Poles Sockets
平日價DPDT/3PDT 假日價BTA3-11A
Note: Above sockets are only applied to type “S” terminal.


Rated voltage Rated current Coil resistance (Ω) Must operate voltage  Must release voltage  Max. voltage  Power consumption (approx.)
假日價50 Hz 60  Hz % of rated voltage
房型AC 平日價6V* 假日價684  597 4.2 85 30 110 2.0-2.75VA
平日價12V 假日價294  240 18
平日價24V 假日價114.7  95.9 72
 48V  73.8 65.2  290
110/120V   22.5 19.2  1700
220V   15.5 13.1  7200
 230V 13.4 11.1  8000
平日價240V 假日價11.4 10.1  9000
DC  6V* 169.6  32 80 10 1.2-2.0W
 12V 106.2  120
 24V  52 470
平日價48V* 25.1 1800
 110V 10.6  10000
  1. The coil resistance is measured at a coil temperature of 25℃ and 35%-70% of humidity.
  2. The operating parameter is measured at a coil temperature of 25℃ indicated in the percentage of the rated voltages.
  3. The coil rated current is measured as the real current consumption under the rated voltages.
Item 2C/3C
房型Resistive load(CosΦ=1) 平日價10A 240VAC, 10A 28VDC
Inductive load (cosΦ=0.4L/R=7ms) 5A 240VAC, 5A 24VDC
房型Motor 平日價1/3HP 120VAC, 1/2HP 240VAC
房型Max. switching voltage 平日價250VAC, 125VDC
房型Max. switching current 平日價10A
房型Max. switching power 平日價2400VA 280W
Item All Relays
房型Contact resistance 平日價50mΩ Maximum.
Operate time 20mS Maximum
Release time 15mS Maximum
房型Max. operating frequency 平日價Mechanical: 18,000 operations/h
Electrical: 1,800 operations/h (under rated load)
Insulation resistance 500MΩ Minimum. At 500VDC.
Dielectric strength  Between open contact: 1500 VAC for 1 minute.
Between contact and coil: 1500VAC for 1 minute.
Between live parts and ground: 1500VAC for 1 minute.
Vibration resistance Destruction: 10 to 55 Hz, 0.5-mm single amplitude(1.5-mm double amplitude)
Malfunction: 10 to 55 Hz, 0.5-mm single amplitude(1.0-mm double amplitude)
Shock resistance Destruction: 1,000 m/s²(approx. 100G)
Malfunction: 1,00 m/s² (approx. 10G)
房型Endurance 平日價Mechanical: 10,000,000 operations min (at 18,000 operations/h)
Electrical: 100,000 operations min (at 1,800 operations/h under rated load)
Ambient temperature Operating: -30℃ to +50℃(AC); -30℃ to +65℃(DC)
Ambient humidity Operating: 5% to 85%
Weight 88g 
  • SOCKETS Dielectric strength, Insulation resistance
Pole Sockets Carry current Dielectric withstand voltage Insulation resistance
30A 1500VAC,1min 500MΩ Minimum. At 500VDC.
房型3PDT BTA3-11AN