General Purpose Relay




  • 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".)


  • Plug-in style relay.
  • Quick connect receptacles or direct soldering. P.C.B terminals are also acceptable.
  • 13A contact rating.
  • SPDT, DPDT, 3PDT contact arrangement.
  • BTA2 general-purpose relays are available in a wide choice of AC or DC voltages with indicator lamp and/or manual push button.
  • UL E115915


Contact form Plug-in Terminals
假日價Standard With LED With LED and Manual button
平日價SPDT 假日價BTA2-1C-B-S2-C BTA2-1C-B-S2-C-L BTA2-1C-B-S2-C-LM
平日價DPDT BTA2-2C-B-S2-C BTA2-2C-B-S2-C-L BTA2-2C-B-S2-C-LM
平日價3PDT BTA2-3C-B-S2-C BTA2-3C-B-S2-C-L BTA2-3C-B-S2-C-LM
平日價SPNC BTA2-1B-B-S2-C BTA2-1B-B-S2-C-L BTA2-1B-B-S2-C-LM
平日價DPNC BTA2-2B-B-S2-C BTA2-2B-B-S2-C-L BTA2-2B-B-S2-C-LM
 3PNC BTA2-3B-B-S2-C BTA2-3B-B-S2-C-L BTA2-3B-B-S2-C-LM
SPNO BTA2-1A-B-S2-C  BTA2-1A-B-S2-C-L  BTA2-1A-B-S2-C-LM 
DPNO BTA2-2A-B-S2-C  BTA2-2A-B-S2-C-L  BTA2-2A-B-S2-C-LM 
3PNO BTA2-3A-B-S2-C  BTA2-3A-B-S2-C-L  BTA2-3A-B-S2-C-LM 
  1. You can choose contact material by switching the codes. For instance: BTA2-1C-B-S2-C (AGSNO2 gold flashed) can be changedto BTA2-1C-E-S2-C (AGCDO gold flashed)Blank:AGCDO B: AGSNO2 gold flashed E: AGCDO gold flashed D: AGNI gold flashed G: silver
  2. You can choose terminal style by switching the codes. For instance::BTA2-1C-B-S2-C (4.8X0.5) can be changed toBTA2-1C-B-S1-C (S1: 4.8X0.8)S1: 4.8X0.8 S2:4.8X0.5 P2: 1.2X0.8 P3:1.2X0.5 (See the Terminal Style figure below)
  3. You can choose cover style by switching the codes. For instance:: BTA2-1C-B-S2-C (plain cover )can be changed toBTA2-1C-F-S2-C1. (side flange cover)C: plain cover C1: side flange cover C2: 6-32 Tapped crop and anti-rotation lab C3: top flange coverC4: din rail cover C5: clip cover CS: black plain cover D: open type (See the Cover style figure below)
Poles Front-mounting Socket (DIN-track/screw mounting)
平日價1C/2C/3C 假日價BTA3-11A
Note: The socket in the table is used in the 0.5MM thickness of S2 terminal only.


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
平日價6V 442 425 6 85 30 110 2.0VA
平日價12V 假日價263 242 21
平日價24V 假日價122.4 110.9 85
 48V 51.3 45.6 350
110V  23 20.5 1900
120V  22.3 19.5 2250
 220V 14.5 12.8 7200
平日價240V 114.4 10.1  9110
6V 726 654 4.2 2.75VA
12V 297 268 18
24V 146.8 127.2 72
48V 73.8 65.3 280
110V 31.2 27.5 1500
120V 33.1 29.4 1700
220V 15.5 13.5 6000
240V 27 23.2 7200
 6V 165.7 32 80 10 1.2W
 12V 95.6 120
 24V  60.3 472
平日價48V 26.4 1800
 110V 10.8 10000
120V 10.8 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 1C 2C 3C
房型Resistive load(CosΦ=1) 平日價13A 240VAC
13A 28VDC
假日價12A 120VAC
12A 28VDC
11A 240VAC
11A 28VDC
房型Motor 平日價1/3HP,120VAC
房型Max. switching voltage 平日價250VAC 125VDC
房型Max. switching current 平日價13A
房型Max. switching power 3120VA 364W 假日價2880VA 364W 3640VA 308W
Item All Relays
房型Contact resistance 50mΩ Maximum.
房型Operate time 平日價AC: 30mS Maximum, DC:20mS Maximum
房型Release time 平日價AC: 25mS Maximum, DC: 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.
Between contact and coil: 1500VAC for 1 minute.
Between live parts and ground: 1500VAC for 1 minute.
Vibration resistance Destruction: 10 to 55 Hz, 0.75-mmsingle amplitude(1.5-mm double amplitude)
Malfunction: 10 to 55 Hz, 0. 5-mmsingle 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: -35℃ to +50℃(AC); -35℃ to +65℃(DC)
Ambient humidity Operating: 5% to 85%
Weight 88g 
Pole Model Carry current Dielectric withstand voltage Insulation resistance
房型1C/2C/3C 平日價BTA3-11A 假日價13A 1500VAC,1min 1000MΩ Minimum. At 500VDC.
平日價BTA3-11AN 假日價13A 1500VAC,1min  1000MΩ Minimum. At 500VDC.