General Purpose Relay




  • one of the most popular general purpose relays: 5A relay (relé industrial, relé de propósito general, relé miniatura)
  • can replace the below relays:

             Omron relay: MY

             Zelio relay (Schneide): RXM

             Magnecraft relay: 782XBX_/ 782XCX_/ 782XDX_

             Finder relay: 55

             Idec relay: RU/RM2

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

  • LED indicator is available in this model!!
  • wide choice of coil volts: 6V, 12V, 24V, 48V, 110V, 120V, 220V, 230V, 240V
  • relay socket PYF-08A, PTF-14A for plug-in style relay
  • can be pcb relay (pcb mounted pins if choosing P type instead of S type)
  • UL listed: E115915 


  • 3 contact loads:

          * 3 amp 28VDC, 3 amp 240VAC

          * 5 amp 28VDC, 5 amp 240VAC

          * 10 amp 120 VAC, 8 amp 28VDC, 8 amp 277VAC for 2C, 3C

  • configuration (changeover):

          * 2C (8 pin/ DPDT)

          * 3C (11 pin/ 3PDT)

          * 4C (14 pin/ 4PDT) 


  • terminal types:  PCB mounted terminlal or plug-in style
  • cover choice; plain cover (clear cover
  • functions: LED indicator
  • volts range:

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

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

  • relay socket (din rail base):

         * PYF-08A for BMY-2C

         * PYF-11A for BMY-3C

         * PYF-14A for BMY-4


End Applications

Spec MY LY
Application Control Panel
Sequence Control
Direct Load Switching
Industrial Automation Controllers
Public Adress Video Projector System
Surge Arrester


  • 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".)


  • 3A / 5A/10A of general purpose relay
  • DPDT and 4PDT contact arrangement
  • Bifurcated contact: To increase contact reliability
  • Epoxy sealed relays: (Optional)
  • E101358 (for BMY-2C5、BMY-4C5)


Contact form Current Plug-in socket/Solder terminals
假日價Standard With LED With LED and button
房型DPDT 平日價5A 假日價BMY-2C5-S-C- BMY-2C5-S-CL- BMY-2C5-S-CML-
平日價10A BMY-2C10-S-C- BMY-2C10-S-CL- BMY-2C10-S-CML-
房型4PDT 平日價3A BMY-4C1-S-C- BMY-4C1-S-CL- BMY-4C1-S-CML-
平日價5A BMY-4C5-S-C- BMY4C5-S-CL- BMY-4C5-S-CML-
 Bifurcated 3A BMY-4C3-S-C- BMY-4C3-S-CL- BMY-4C3-S-CML-
  1. There are two different types of terminal can be chose. For example:BMY-2C-P (P type ) can be changed to BMY-2C-S-C ( S type) byswitching the code.
  2. There are four different types of cover can be chose. For example: BMY-2C-S-C2 ( plain cover ) can be changed to BMY-2C-S-C2(Anti-rotation) by switching the code. C:plain cover C2:Anti-rotation C3:Top flange cover C6:Epoxy sealed style
Contact Form Front-connecting Socket (DIN-track/screw mounting)
平日價DPDT 假日價PYF-08A、PY-08-P/S
平日價4PDT 假日價PYF-14A、PY-14-P/S


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* 331 284 9.5 85% 30% 110% 1.2VA
平日價12V 94.2 73.5 46
平日價24V 54.5 46.5 180
 48V* 24.1 18.2 770
110V  11.2 8.1 3830
120V  11.5 8.4 4430
 220/230V 6.9 5.8 15000
平日價240V 6.1 3.8  15700
DC  6V* 150 40 80% 10% 0.9W
 12V 74.5 160
 24V  36 650
平日價48V* 14.5 2600
 110V 9.7 11000
  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 BMY-2C5 BMY-2C10 BMY-4C1/3 BMY-4V5
房型Resistive load(CosΦ=1) 5A 30VDC
5A 240VDC
10A 30VDC
10A 240VAC
3A 30VDC
3A 240VAC
5A 30VDC
5A 240VAC
房型Motor 1/6HP 120VAC 1/3HP 120VAC 1/10HP 120VAC 1/6HP 120VAC
Carry Current 5A 10A 3A 5A
房型Max. switching voltage 平日價250VAC 125VDC
房型Max. switching current 5A 10A 5A
房型Max. switching power 1200VA
Item All Relays
房型Contact resistance 50mΩ Maximum.
房型Operate time 20mS Maximum
房型Release time 平日價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 1000MΩ Minimum. At 500VDC.
Dielectric strength  Between open contact: 1000 VAC for 1 minute.
Coil to frame: 1500VAC for 1 minute.
Contact and coil: 1500VAC for 1 minute.
Pole to pole: 1500VAC for 1 minute.
Vibration resistance Destruction: 10 to 55 Hz, 0.5-mm single amplitude(1.0-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: 200 m/s² (approx. 10G)
房型Endurance 平日價Mechanical: 10,000,000 operations min
Electrical: 100,000 operations min
Ambient temperature Operating: -25℃ to +50℃(AC); -25℃ to +55℃(DC)
Ambient humidity Operating: 5% to 85%
Weight 32g 
  • SOCKETS Dielectric strength, Insulation resistance
Pole Model Dielectric withstand voltage Insulation resistance
DPDT 平日價PYF-08A 1800VAC,1mA/min 1000MΩ Minimum. At 500VDC
平日價PY-08-P/S 1800VAC,1mA/min  1000MΩ Minimum. At 500VDC 
4PDT  PYF-14A 1800VAC,1mA/min  1000MΩ Minimum. At 500VDC 
PY-14-P/S 1800VAC,1mA/min  1000MΩ Minimum. At 500VDC