REF542plus
PublishedBay Control and Protection Unit
ABBElectrical & LightingProtection RelayIndustrial supply
ABB REF542plus bay control and protection unit for medium-voltage switchgear. Rated current 0.2/1/5 A; rated voltage 100-125 V; protection and control class 3.
Wholesale supplyREF542plus
No public pricingPriced per agreement on volume and market. Send your quantities — Kaysan replies with availability and wholesale terms.
Product identity6 fields
Item nameBay Control and Protection Unit
Item number / codeREF542plus
BrandABB
Product lineIndustrial supply
CategoryElectrical & Lighting
Product typeProtection Relay
Technical data14 rows
RangePhase Current
Voltage100 V
176...264 V DC(Threshold: 143 V DC)
19...72 V DC(Threshold: 14 V DC)
68 Inrush Stabilization(only in connection with 50 and 51)
88...132 V DC(Threshold: 72 V DC)
Active, Reactive Energy2
Active, Reactive, Apparent Power1
Breaking Capacity70 W (1 contact), 130 W (2 contacts in series) at L/R ≤ 40 ms, 10,000 operations
Coil OKwhen impedance is below 10 Ω
Cosφ1, –1 to +1
Fault Current Threshold0.05 to 40.00 x In
Frequency0.02, 40-75 Hz
Hardware-Fixed Filter Time1 ms (Additional filter time configurable in software)
Reference numbers1 public
ABBREF542PLUS