Built for residential and commercial distribution, this 20-amp thermal-magnetic device provides essential overload and short-circuit protection. It mounts into standard Murray load centers, serving as a reliable component for 240V circuits like water heaters or baseboard heating. Featuring Insta-Wire connectors for faster installation, it carries HACR and SWD ratings. Note that this legacy Murray design has been officially replaced by the Siemens Q220 for modern panelboards.
Specifications
Brand
Siemens
Series
MP
Part Number
MP220
Amperage
20A
Voltage
120/240VAC
Poles
2
Phase
1
AIC Rating
10kA @ 120/240VAC
Mounting Style
Plug-On
Terminal Type
Lugs
For Use With
Murray Load Centers
Trip Technology
Thermal Magnetic
Trip Function Code
LI
Trip Function
Long-Time, Instantaneous
Trip Adjustability
Fixed
Wire Gauge
14-6 AWG (Cu), 12-6 AWG (Al)
Max Wire
6 AWG
Min Wire
14 AWG (Cu), 12 AWG (Al)
Available Options
Padlock Attachment
Standards
HACR, SWD, UL 489
Approval
CSA, UL
Temp Rating
40C
Construction Features
HACR Rated, Common Trip, Insta-Wire
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Thank you so much for sending me a 100 amp breaker that was in the condition that you said it would be in.With out your breaker I would still be in the dark Thank you David