Siemens UL 489 - Circuit Breaker Accessory Ratings

27 – 4
WL Circuit Breaker Accessory Ratings
Manual-operating mechanism with Mechanical Closing
Closing/charging the closing spring
Maximum actuating force required on hand
lever
52 lbs
Number of hand lever strokes required 9
Motor-operating mechanism with Mechanical and Electrical Closing
Charging the closing spring
Closing coil and Shunt Trip Coil voltage tolerance 24V DC 14 - 28V DC
48V DC 28 - 56V DC
120V AC /
125V DC
70 - 140V DC
104 - 127V AC
240V AC /
250V DC
140 - 280V DC
208 - 254V AC
180Y / 104V AC
220Y / 127V AC
Power consumption (5% duty cycle) 120 W for 50 ms
Minimum closing coil actuation signal required
(5% duty cycle)
50 ms
Motor-operating mechanism with Mechanical and Electrical Closing
Motor for charging closing spring
Motor voltage tolerance at 120V AC, 240V AC 85 - 110%
Extended tolerance for battery operation at 
24 V DC, 48 V DC, 125 V DC, 250 V DC
70 - 126%
Power consumption of the motor 110 W
Time required for charging the closing spring 10s
For motor and closing coil 
short-circuit protection
Short-circuit protection
Standard slow-blow cartridge
24 - 60 V 6A
110 - 250 V 3A
Auxiliary Release
Undervoltage release (UVR) Operating values 85% (circuit breaker can be closed)
35 - 70% (circuit breaker opens)
AC Coil voltage tolerance at 120 V AC, 
240 V AC
85 - 110%
DC Extended tolerance for battery operation
at 24 V DC, 48 V DC, 125 V DC, 250 V DC
85 - 126%
Rated control supply voltage AC 50/60 Hz V 120, 240
DC V 24, 48, 125, 250
Power consumption (inrush / contiuous) AC VA 200 / 5
DC W 200 / 5
Opening time of the circuit breaker for AC / DC ms 200
UVR (no delay time ), 2 settings
Setting 1 ms 80
Setting 2 ms 200
UVR (with delay time )
Adjustable delay s 0.2 to 3.2
Reset by additional NC direct opening ms 100