Zener barrier Z 787 31296
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Zener barrier Z 787 | 31296
Zener barrier Z 787
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The Zener barrier limits the amount of energy transferred from the non-hazardous area to the hazardous area.
If used in conjunction with AFRISO 2-wire Ex devices, only usable as a single-channel system.
The Zener barrier Z 787 barrier is used for evaluation of up to 2 signals from the hazardous area. No separate supply voltage required.
If used in conjunction with AFRISO 2-wire Ex devices, only usable as a single-channel system.
- Housing
- DIN rail housing
- W x H x D:
- 12.5 x 115 x 110 mm
- supply voltage
- max. DC 28 V
- Fuse rating
- 50 mA
- Connection
- 2-channel
- DC version, positive polarity
- current circuits (max. data)
- U0:
- 28 V
- I0:
- 93 mA
- P0:
- 650 mW
- Nominal resistance
- 300 Ohm
- Operating temperature range
- Ambient:
- -20/+60 °C
- EU type examination certificate
- IEC Ex BAS 09.0142 Ex II (1) GD [Ex ia] IIC
- Ex II (1) GD [Ex ia Ga] IIC, [Ex ia Da] IIIC