Specifications table for model SG-B2-K2BC-5
ItemPerformance characteristics
Contact Arrangement
Cable Length5m
16.404 ft
Key Removal PositionB
(removable in UNLOCK position)
Applicable StandardsEN 1088, IEC 60947-5-1, EN 60947-5-1,
GS-ET-19, UL 508, CSA C22.2 No.14
Applicable Standards: Standards For UseIEC 60204-1, EN 60204-1
Applicable DirectivesMachinery directive (2006/42/EC)
Low voltage directive (2006/95/EC)
Operating Condition: Ambient Temperature -25 to +70 ℃ -13 to +158 ℉ (No dew condensation or icing allowed)
Storage : -40 to +80 ℃ -40 to +176 ℉
Operating Condition: Ambient Humidity 45 to 85 % RH
Operating Condition: Pollution Degree S3 (Inside 2)
Operating Condition: Altitude 2,000 m 6,561.68 ft max.
Impulse Withstand Voltage (Uimp)2.5 kV
Rated Insulation Voltage (Ui)250 V
(Note): Ratings approved by UL, c-UL : 125 V
Thermal Current (Ith)・2.5 A
・Ambient temperature :
-25 to +60 ℃ -13 to +140 ℉ : 2.5 A max.
+60 to +65 ℃ +140 to +149 ℉ : 1.5 A max.
+65 to +70 ℃ +149 to +158 ℉ : 1.0 A max.
Rated Operational Voltage (Ue)/Rated Operational Current (Le)
  30V 125V 250V
Ie AC Resistive load (AC-12) - 2.5A 1.5A
Inductive load (AC-15) - 1.5A 0.75A
DC Resistive load (DC-12) 2.5A 1.1A 0.55A
Inductive load (DC-13) 2.3A 0.55A 0.27A
Operating Frequency900 operations/hour
Actuator Operating Speed0.05 to 1.0 m/sec.
(ISO 13849-1 Annex C Table C.1)
Mechanical Durability1,000,000 operations min. (GS-ET-19)
Rear unlocking button : 3,000 operations min. (Type SG-B2-□-L5)
Electrical Durability100,000 operations min. (AC-12, 250 V 1 A)
1,000,000 operations min. (AC/DC 24 V 100 mA)
(900 operations/hour)
Electric Shock Protection ClassClass II (IEC 61140)(Note), 回(double-insulated)
(Note): Basic insulation of 2.5 kV impulse withstand voltage is ensured between different contact circuits.
When both SELV (safety extra low voltage) or PELV (protective extra low voltage) circuits and other circuits (such as 230 V AC circuits) are used for the solenoid power and contact circuits at the same time, the SELV or PELV requirements are not met any more.
Interlock Force1,400 N min. (GS-ET-19)(Note)
(500 N min. : SG-K24 actuator)
(Note): The actuator locking strength is rated at 1,400 N of static load. Do not apply a load higher than the rated value. When a higher load is expected to work on the actuator, provide an additional system consisting of another safety switch without lock (such as the SG-A1 safety switch) or a sensor to detect door opening and stop the machine.
Direct Opening Travel11 mm 0.433 in min. (actuator : SG-K21)
12 mm 0.472 in min. (for other actuators)
Direct Opening Force80 N min.
Contact Resistance700 mΩ max. (initial value, 5 m 16.404 ft cable)
ProtectionIP 65 (IEC 60529)
Shock ResistanceMalfunction : 100 m/s2, Destruction : 1,000 m/s2
Vibration ResistanceMalfunction : 10 to 55 Hz, half amplitude 0.35 mm 0.014 in
Destruction : 30 Hz, half amplitude 1.5 mm 0.059 in
Conditional Short-Circuit Current50 A (250 V)
Short-Circuit Protective DeviceUse 250 V / 10 A fast acting type fuse
MaterialEnclosure : PA66
CableUL style 2464, No.22 AWG 12-core
Key: Operating Specifications 2 positions
Key: Mechanical Durability 100,000 operations min.
Key: Key Operating Durability10,000 operations min.
Key: Key Tensile Strength1.0 N・m min.
Key: Direct Opening Force0.6 N・m min.
Key: Direct Opening Degree60°min.
Weight (Typ.)Approx. 680 g
DummyCE Marking [Machinery Directive(2006/42/EC), RoHS Directive], UKCA Marking [Machinery Regulations(2008 No.1597), RoHS Regulations]

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