B&R X20DO4529
4 digital outputs Relay module for 115 VAC 4 change over contacts Single-channel isolated outputs This module is equipped with 4 relay outputs with changeover contacts for 115 VAC. The outputs are single-channel isolated.
Lifecycle & replacement
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Technical specifications
Short description
| I/O module | 4 digital outputs 30 VDC / 115 VAC, outputs single-channel isolated |
General information
| Diagnostics / Module run/error | Yes, using LED status indicator and software |
| Diagnostics / Outputs | Yes, using LED status indicator |
| Power consumption / Bus | 0.8 W |
| Power consumption / Internal I/O | - |
| Certifications / CE | Yes |
| Certifications / UKCA | Yes |
| Certifications / CRA (Cyber Resilience Act) | In preparation |
| Certifications / ATEX | Zone 2, II 3G Ex nA nC IIA T5 Gc IP20, Ta (see X20 user's manual) FTZÚ 09 ATEX 0083X |
| Certifications / UL | cULus E115267 Industrial control equipment |
| Certifications / HazLoc | cCSAus 244665 Process control equipment for hazardous locations Class I, Division 2, Groups ABCD, T5 |
| Certifications / DNV | Temperature: B (0 to 55°C) Humidity: B (up to 100%) Vibration: B (4 g) EMC: B (bridge and open deck) |
| Certifications / CCS | Yes |
| Certifications / LR | ENV1 |
| Certifications / KR | Yes |
| Certifications / ABS | Yes |
| Certifications / BV | EC33B Temperature: 5 - 55°C Vibration: 4 g EMC: Bridge and open deck |
| Certifications / KC | Yes |
| B&R ID code | 0x20D9 |
| Status indicators | I/O function per channel, operating state, module status |
| Additional power dissipation caused by actuators (resistive) [W] | +0.3 |
Digital outputs
| Switching delay / 0 → 1 | ≤4 ms |
| Switching delay / 1 → 0 | ≤4 ms |
| Insulation voltages / Channel - Bus | Tested at 1500 VAC |
| Insulation voltages / Channel - Channel | Tested at 1000 VAC |
| Service life / Electrical | Min. 100 x 10³ ops. |
| Service life / Mechanical | Min. 50 x 10⁶ ops. (3 Hz) |
| Switching capacity / Minimum | 0.01 mA / 10 mV DC |
| Switching capacity / Maximum | 30 W / 62.5 VA |
| Protective circuit / External / AC | RC combination or VDR |
| Protective circuit / External / DC | Inverse diode, RC combination or VDR |
| Protective circuit / Internal | None |
| Execution | Relay / Changeover contact Channels are single-channel isolated. |
| Nominal voltage | 30 VDC / 115 VAC |
| Max. voltage | 125 VAC |
| Switching voltage | Max. 110 VDC / 125 VAC |
| Rated frequency | DC / 45 to 63 Hz |
| Nominal output current | 1 A at 30 VDC / 0.5 A at 115 VAC |
| Total nominal current | 4 A at 30 VDC / 2 A at 115 VAC |
| Actuator power supply | External |
| Inrush current | Max. 2 A (per channel) |
| Contact resistance | 75 mΩ at 6 VDC / 1 A |
Electrical properties
| Electrical isolation | Channel isolated from channel, bus and I/O power supply |
Operating conditions
| Mounting orientation / Horizontal | Yes |
| Mounting orientation / Vertical | Yes |
| Installation elevation above sea level / 0 to 2000 m | No limitation |
| Installation elevation above sea level / >2000 m | Reduction of ambient temperature by 0.5°C per 100 m |
| Degree of protection per EN 60529 | IP20 |
Ambient conditions
| Temperature / Operation / Horizontal mounting orientation | -25 to 60°C |
| Temperature / Operation / Vertical mounting orientation | -25 to 50°C |
| Temperature / Derating | - |
| Temperature / Storage | -40 to 85°C |
| Temperature / Transport | -40 to 85°C |
| Relative humidity / Operation | 5 to 95%, non-condensing |
| Relative humidity / Storage | 5 to 95%, non-condensing |
| Relative humidity / Transport | 5 to 95%, non-condensing |
Mechanical properties
| Note | Order 1x terminal block X20TB12 separately. Order 1x bus module X20BM11 separately. |
| Pitch | 12.5⁺⁰.² mm |
Documentation & CAD
Files hosted by B&R Industrial Automation; links open the official download page.
Datasheets
Manuals
ECAD / EPLAN
Certificates
- 2226379 CSA Certificate of Compliance X20 X67
- 64331_A1 BV Certificate of Compliance X20
- 64331_A1 BV Certificate of Compliance X20(de)
- ABS Certificate of Product Design Assessment - X20 IO Series
- CCS Type Approval Certificate - X20
- E115267 UL Certificate of Compliance X20
- EU Data Act - X20 IO - Connected Product Information Notice
- EU Declaration ATEX X20
- EU Declaration of conformity PLC X20
- FTZU 09 ATEX 0083X
- KR Type Approval Certificate MIL39390-AC003 (X20 System)
- Lloyds Register (X20 only)
Get a quote for a replacement
Industrial Automation Co. stocks, sources, and repairs B&R parts — new, refurbished, or exchange units with warranty.
Specifications from the official B&R product catalog. Always confirm against the datasheet for your exact revision.