EFR 012 Electronic hygrostat, 40-90% RH, 1NC/NO, 230VAC

Item code: ST.01245.0-00

Condition: New product


Electronic hygrostat senses the relative humidity in an enclosure.

Type EFR 012,

40-90% RH,

1NC/NO, 230VAC,

Approvals VDE, UL, EAC, 

Stego 01245.0-00

10 Items

36,76 € tax excl.

Data sheet

Product type Hygrostat
Switching function Change-over Contact (Heating/Cooling)
Power supply voltage 230V AC
Operating temperature 0°C ... +60°C
Degree of protection IP20
Approvals VDE, UL, EAC

More info

The electronic hygrostat senses the relative humidity in an enclosure with electric/electronic components and turns on a heater at the set point, helping prevent the formation of condensation in the enclosure. The LED integrated in the adjustment knob is lit when the connected heater is in operation.

Switch difference 5% RH (±3% RH tolerance) at +25°C (+77°F), 50% RH
Reaction time 5 sec.
Contact type change-over contact (relay)
Service life > 50,000 cycles
Max. switching capacity (relay output) 240VAC / 120VAC 8 (1.6) A
DC 100W at 24VDC
Max. inrush current AC 16A for 10 sec.
Optical indicator LED
Connection 5-pole terminal, clamping torque 0.5Nm max.:
rigid/stranded1 wire 2.5mm² (AWG 14)
Mounting clip for 35mm DIN rail, EN 60715
Casing plastic according to UL94 V-0, light grey
Dimensions 64.5 x 42 x 38mm
Weight approx. 70g
Fitting position vertical
Operating/Storage temperature 0 to +60°C (+32 to +140°F) / -20 to +70°C (-4 to +158°F)
Operating/Storage humidity max. 90% RH (non-condensing)
Protection type IP20

¹ When connecting with stranded wires, wire end ferrules must be used.

Art. No.Operating voltageSetting rangeApprovals
01245.0-00 230VAC, 50/60Hz 40 to 90% RH VDE UL File No. E164102 EAC



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