Switching actuator for switching loads
DIN-rail mount device, width 72 mm (4TE,  SA4 - 230 / 16 /) or 144 mm (8 TE, SA8 - 230 / 16 /) for mounting on a DIN-rail (TH35 EN 60715) for installation in a switch cabinet
Transformer-based current measurement (+/- 10mA)
True effective value measurement (current)
Voltage-synchronous active power measurement
The device has four (SA4 - 230 / 16 /) or eight (SA8 - 230 / 16 /) independant potential-free NO contacts
The switching contacts are optimised for capacitive loads
Manual switches for switching without bus tension
The switching actuator is powered by the KNX bus, no additional power supply required
Connection of the outputs is realised by means of screw terminals
The voltage is assumed to be sinusoidal. For the channels 2 ... 4, the phase shift can be adjusted via ETS when using different phase conductors (three-phase alternating current).



Voltage: via KNX BUS
Dimensions: 90 x 72 x 64 mm (4 TE)
typ. power input: 5 mA typical, 20 mA max.
Power consumption: 0.15 W
Degree / class of protection: IP20  / Class II
Ambient temperature: -5 °C to +45 °C
Material color: grey
KNX TP 256: Yes
Connections and wires: 0.2 ... 4.0 mm² rigid, 0.25 ... 2.5 mm² fine-wired (with or without ferrule), USB
 Channel 1 to channel 4 or 8
Switching power: 3680 W, cos φ = 1 , max. inrush current Ip (150 µs) = 600 A
Type of contact: µ-contacts, dry NO contact, (if N is connected, channel 1 is no longer potential-free and is used to determine the phase position)
Outputs: 90139= 4 switching outputs, 93339= 8 switching outputs
 Current measurement
null Effective value measurementMeasuring range: 10 mA ... 20 A AC (no DC)Accuracy at AC sine typ.: 3% of actual current +/- 20 mAFrequency: 50/60 Hz
 Active power measurement
null Optionally without recognition of the phase state between current and voltage or with recognition of the phase state (input via ETS).Measuring range: 2 W ... 4600 W AC (no DC)Accuracy at AC sine typ.: 5 % of the current power value +/- 5 WFrequency: 50/60 Hz


Manufacturer: B.E.G. Brück Electronic GmbH
Description: SA4 - 230 / 16 / H / EM /  KNX REG
Material color: grey
Item number: 90139
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