A reliable solution for circuit isolation, this 225A molded case switch is part of the Siemens QJ-Frame family. It installs into Siemens P1, P2, and P3 panelboards, providing a non-automatic disconnect function for commercial and industrial applications. Although it does not offer thermal overload protection, it features a self-protective instantaneous override to prevent damage during high-fault events. This model is reverse-feed capable and has been replaced by the newer QR22S225.
Specifications
Brand
Siemens
Series
QJ
Part Number
QJ22S225A
Amperage
225A
Voltage
240VAC
Poles
2
Phase
1
AIC Rating
10kA @ 240VAC
Mounting Style
Bolt-On
Terminal Type
Lugs
For Use With
Siemens Panelboards (P1, P2, P3), Switchboards
Trip Technology
Magnetic Only
Trip Function Code
I
Trip Function
Instantaneous Only
Wire Gauge
6 AWG - 300 kcmil (Cu), 4 AWG - 300 kcmil (Al)
Max Wire
300 kcmil
Min Wire
6 AWG (Cu) / 4 AWG (Al)
Available Options
Shunt Trip, Auxiliary Switch, Alarm Switch
Accessories
Load Side Lugs Included
Standards
CSA C22.2 No. 5, UL 489
Approval
CSA, UL
Temp Rating
40C
Construction Features
Non-Automatic (Disconnect), Reverse Feed
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