ABB REF542PLUS Bay Control and Protection Unit
The ABB REF542PLUS is a bay control and protection unit for ABB platforms. Line Voltage, Phase Voltage: 0.5, 0.2-1.5 Vn | Active, Reactive Energy: 2 | Active, Reactive, Apparent Power: 1. Factory-sealed, live-rack tested, 48-hour burn-in. 12-month warranty. Ships within 24 hours.
Technical Specifications
| Quantity Class Range | : |
|---|---|
| Phase Current, Earth Current | 0.5, 0.1-4 In |
| Line Voltage, Phase Voltage | 0.5, 0.2-1.5 Vn |
| Active, Reactive Energy | 2 |
| Active, Reactive, Apparent Power | 1 |
| Cosφ | 1, –1 to +1 |
| Frequency | 0.02, 40-75 Hz |
| Protection Functions and Operation Time | : |
| Protection Functions | Class 3 |
| Operation Time | Class 3 or minimum ±15 ms |
| Rated Current (In) | 0.2 A, 1 A, or 5 A |
| Rated Voltage (Un) | 100 V - 125 V |
| Rated Frequency (fn) | 50 Hz or 60 Hz |
| ANSI Code Protection Functions and Parameters | : |
| 68 Inrush Stabilization | (only in connection with 50 and 51): |
| N | 2.0 to 8.0 |
| M | 3.0 to 4.0 |
| Time | 200 to 100,000 ms |
| 68 Inrush Harmonic | : |
| Min Current Threshold | 0.05 to 40.00 x In |
| Fault Current Threshold | 0.05 to 40.00 x In |
| Harmonic Ratio Threshold | 5% to 50% |
| 50 Overcurrent Instantaneous | : |
| I>>> | 0.100 to 40.000 x In |
| t | 20 to 300,000 ms |
| 51 Overcurrent High | : |
| I>> | 0.05 to 40.00 x In |
| 51 Overcurrent Low | : |
| I> | 0.05 to 40.00 x In |
| 51 IDMT Overcurrent (Inverse Definite Minimum Time) | : |
| Ie | 0.050 to 40.000 In |
| K | 0.050 to 1.500 |
| Module Features | : |
| Input Channels | 14 |
| Possible Auxiliary Voltage Ranges | : |
| 19...72 V DC | (Threshold: 14 V DC) |
| 88...132 V DC | (Threshold: 72 V DC) |
| 176...264 V DC | (Threshold: 143 V DC) |
| Hardware-Fixed Filter Time | 1 ms (Additional filter time configurable in software) |
| Power Outputs (Channels BO 1 to 6) | : |
| Maximum Operating Voltage | 250 V DC |
| Make Current | 1.5 A peak |
| Load Current | 0.7 A continuous |
| Breaking Capacity | 70 W (1 contact), 130 W (2 contacts in series) at L/R ≤ 40 ms, 10,000 operations |
| Operating Time | 1 ms |
| Signal Outputs | : |
| Channels BO7 and BO8, and Watchdog Output (WD) | : |
| Optional Static Output on BO7 | : |
| Coil Supervision Circuit on BO2 | : |
| Coil OK | when impedance is below 10 Ω |
| Manufacturer | ABB |
| Model / SKU | REF542PLUS |
Ships within 24 hours | 12-Month Warranty | Worldwide Delivery
ABB REF542PLUS: Before You Buy
The ABB REF542PLUS Bay Control and Protection Unit has specific characteristics: Quantity Class Range: :
Phase Current, Earth Current: 0.5, 0.1-4 In
Line Voltage, Phase Voltage: 0.5, 0.2-1.5 Vn
Active, Reactive Energy: 2
Active, Reactive, Apparent Power: 1.
Compare against your existing unit. If any parameter differs, contact us for a compatibility check within 4 hours. 100% genuine ABB. Factory-sealed, live-rack tested, 48-hour burn-in at 55C. Printed test report. 12-month warranty.
Compatible Parts — Same System
These modules share the same system family as the REF542PLUS. Commonly ordered together for complete rack builds or spare parts kits.
Related Products
