TKR 52 - 54
Miniature Relay
for printed circuit

Ise Iskra Relays

• Low power consumption
• High contact current
• High vibration resistance
• High shock resistance
• Extinguishable casing
• VDE Nr. 5388
• UL Approval 63582
• According to EN 60730 (VDE 0631) - EN 60335 (VDE 0700)

Technical data

Characteristics

• Contact Form: 1 Change-over, 1 Make, 1 Break
• Contact Material: AgNi10
• Rated Current: 8A (cos_φ = 1)
• Max. Swich-on current: 16A (4 s, 10% duty cycle)
• Max. Operating Voltage: 250VAC, VDC (see diagram)
• Max. Switching Power: 2000VA, W (see diagram)
• Min. Switching Load: 12VDC, 100mA
• Max. Contact Resistance: 50 mΩ (New Relay)
• Mechanical Life: 5x10⁷ operations
• Electrical Life: 1x10⁵ operations at 8A 250VAC (see diagram)
• Rated Power: abt. 220 mW
• Pick up Power: abt. 110 mW
• Permanent Thermal Power: abt. 1.3 W
• Thermal Resistance: abt. 120 K / W
• Max. Temperature: 155°C
• Operating Voltage: Uop ≤ 70 U_n
• Drop-out Voltage: Udr ≥ 10 U_n

• Test Voltage Between: contact-coil ≥ 4 kVrms 50 Hz
  contact-contact ≥ 1 kVrms 50 Hz
• Surge Voltage: contact-contact ≥ 5 kV (1.2/50) µs
• Clearances and Creepage Distances: contact-coil ≥ 8 mm
  contact-contact ≥ 4 mm
• Operate Time at Un: ≤ 10 ms
• Release Time: ≤ 9 ms
• Bounce Time: ≤ 7 ms
• Max. Operating Frequency: 360/h rated load
  72000/h min. load
• Insulation Resistance (500 VDC): > 10³ MΩ
• Vibrations Resistance (10-55Hz): 20 G
• Shock Resistance (11 ms): functional 20 G destructive 100 G
• Ambient Temperature: operating -25°C/+55°C,
  storage -40°C/+85°C
• Protection Degree: IP 67, IEC 529
• Seal Test: Qc/2, IEC 68-2-17
• Pick-up Class: b, IEC 255-1-00
• Combustibility Class: V-0, UL 94
• Solvent Resistance: alcohol family-hot water
• Mounting Position: optional
• Relay Weight: abt. 10 g

Coil data at 20 °C

Nominal Coil Voltage	Coil Resistance	Operating Voltage Range
		Must Operate	Must Drop-out	UMAX Contin.
Un (VDC)	Rn(Ω) ± 10%	Uop ≤ (VDC)	Uop ≥ (VDC)	≤ (VDC)
3	40	2.1	0.3	7
5	118	3.5	0.5	12
6	165	4.2	0.6	14
9	370	6.3	0.7	21
12	650	8.4	1.2	28
18	1400	12.6	1.8	42
24	2500	16.8	2.4	56
36	5640	25.2	3.6	84
48	9500	33.6	4.8	112
60	15265	42	6	140