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Intrinsically Safe Barrier

БІЗ-21-T02 Intrinsically Safe Barrier

Choose a modification:

Order code:

БІЗ-21-T02

Number:

Available for order.

The BIZ-21 intrinsic safety barrier is a specialized device designed to ensure explosion-proof connection of sensors installed in hazardous (explosive) zones to control and monitoring systems located in a safe area.

💡 The BIZ-21-T02 barrier is intended for signal protection of:

  • Thermocouple

​​​⚙️ Key Features:

  • Protection of signal lines (input/output) between safe and hazardous zones
  • Galvanic isolation between zones
  • Limitation of current and voltage to levels incapable of causing sparks or heating that could ignite a hazardous atmosphere 
Number of channels:
  • 1
Protection level:
  • highest
  • II(1)G[ExiaGa]IIC
Power supply:
  • passive, does not require power
Seller

4 254

including VAT

БІЗ-21-T01

БІЗ-21-T02

БІЗ-21-T02

General information:

Intrinsic Safety Level of the Electrical Circuit:

II(1)G[ExiaGa]IIC

II(1)G[ExiaGa]IIC

II(1)G[ExiaGa]IIC

Number of protection circuits in the barrier:

1

1

1

Barrier type:

passive

passive

passive

The maximum permissible voltage value (Um) at which the intrinsic safety of the circuit is ensured:

250 V

250 V

250 V

Device type:

Designed to protect:

Resistance temperature transducers (three-wire circuit)

Resistance temperature transducers (four-wire circuit)

Thermocouple

Output parameters:

Maximum barrier output voltage (U0):

13.8 V

13.8 V

13.8 V

Maximum barrier output current (I0):

116 mА

116 mА

116 mА

Barrier resistance:

From 140 to 162 Ohms

From 140 to 162 Ohms

From 140 to 162 Ohms

Resistance of one branch of the barrier:

From 70 to 81 Ohms

From 70 to 81 Ohms

From 70 to 81 Ohms

The difference in resistance between the branches:

0.02 Ohm

0.02 Ohm

Not normalized

Maximum permissible capacitance of the protected circuit (C0):

0.68 μF

0.68 μF

0.68 μF

Maximum permissible inductance of the protected circuit (L0):

1 mH

1 mH

1 mH

Fuse operating current:

50 mА

50 mА

50 mА

Leakage current for input voltage, no more than:

= 24 V: not supported
= 4 V : 1 μA
= 0.1 V: 0.1 μA

= 24 V: not supported
= 4 V : 1 μA
= 0.1 V: 0.1 μA

= 24 V: not supported
= 4 V : 1 μA
= 0.1 V: 0.1 μA

Corps:

Installation type:

DIN-rail

DIN-rail

DIN-rail

Overall dimensions:

82х23х99 mm

82х23х99 mm

82х23х99 mm

Operating conditions:

Ambient temperature:

-40 °C to +70 °C

-40 °C to +70 °C

-40 °C to +70 °C