Relay module for digital input signals for the electrically isolated coupling of 24 V DC field devices. The control path is protected by an integrated replaceable 1 A fuse. If the fuse fails, this is indicated by an LED. The module is installed on a corresponding VIP I/O-Marshalling base element by means of plug-in contact. Installation in zone 2, “ec” type of protection is permitted.
IOA REL 24V DI/BFI/1.0A/EX
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Relay module
2910155
Relay module for VIP I/O-Marshalling base elements. For the electrically isolated coupling of 24 V DC field devices to digital inputs. Integrated fuse and fuse failure indication.
This product needs further products for operation.
Mandatory accessories
Product details
| Product type | Relay Module |
| Product family | VIP I/O-Marshalling |
| Application | Input function |
| Operating mode | 100% operating factor |
| Mechanical service life | 2x 107 cycles |
| Insulation characteristics | |
| Overvoltage category | II |
| Pollution degree | 2 |
| Data management status | |
| Date of last data management | 06.03.2025 |
| Coil side | |
| Nominal input voltage UN | 24 V DC |
| Input voltage range in reference to UN | 0.9 ... 1.1 |
| Typical input current at UN | 7 mA |
| Typical response time | 5 ms |
| Typical release time | 8 ms |
| Protective circuit | Reverse polarity protection; Polarity protection diode |
| Freewheeling diode; Freewheeling diode | |
| Operating voltage display | Yellow LED |
| Switching | |
| Contact switching type | 1 N/O contact |
| Type of switch contact | Single contact |
| Contact material | AgSnO, hard gold-plated |
| Maximum switching voltage | 24 V DC |
| Minimum switching voltage | 100 mV (at 10 mA) |
| Limiting continuous current | 50 mA |
| Maximum inrush current | 50 mA |
| Min. switching current | 1 mA (at 24 V) |
| Interrupting rating (ohmic load) max. | 1.2 W (at 24 V DC) |
| Control circuits | |
| Connection method | Pin strip |
| Safety data | |
| Input voltage Ui | 24 V DC |
| Input current Ii | 7 mA |
| Dimensional drawing |
|
| Width | 10.3 mm |
| Height | 64.2 mm |
| Depth | 72.9 mm |
| Color | gray (RAL 7042) |
| Flammability rating according to UL 94 | V0 |
| Ambient conditions | |
| Degree of protection | IP20 |
| Ambient temperature (operation) | -40 °C ... 70 °C |
| Ambient temperature (storage/transport) | -40 °C ... 70 °C |
| Altitude | ≤ 2000 m |
| Permissible humidity (operation) | 0 % ... 95 % (non-condensing) |
| ATEX | |
| Identification | II 3G Ex ec nC IIC T4 Gc |
| Certificate | Sira 17ATEX4293X |
| IECEx | |
| Identification | Ex ec nC IIC T4 Gc |
| Certificate | IECEx SIR 17.0078X |
| UKEX | |
| Identification | II 3G Ex ec nC IIC T4 Gc |
| Certificate | PxCIF23UKEX2910153X |
| UL, USA/Canada | |
| Identification | Class I, Div. 2, Groups A, B, C, D T4 |
| Class I, Zone 2, IIC T4 | |
| CSA, USA/Canada | |
| Identification | Class I, Div. 2, Groups A, B, C, D T4 |
| Class I, Zone 2, AEx ec nC IIC T4 Gc | |
| Ex ec nC IIC T4 Gc | |
| Standards/regulations | IEC 60664 |
| DIN EN 50178 |
| Mounting type | Plug-in mounting |
| Assembly note | Plugs into VIP/...BASE... |
ATEX
Approval ID: SIRA 17ATEX4293XCSA
Approval ID: 70134758CSAus
Approval ID: 70134758cUL Listed
Approval ID: FILE E 196811UL Listed
Approval ID: FILE E 196811
Your advantages
Power line blown fuse indication
Active relay coil indication
Two-stage progressive release allowing for voltage checks with field-powered devices
Channel for marking accessories
Replaceable TE5-style fusing
24 V internal marshalling option for connected field device
Integrated keying reduces possible user error during replacement