ABB ACH550 Installation, Operation And Maintenance Manual page 5

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Connection diagrams – standard drive with input disconnect (wall mounted)
The following figure shows the Standard Drive with Input Disconnect (wall mounted)
wiring connection points.
UL Type / NEMA 1 & 12
Vertical Construction
UL Type / NEMA 3R
Enclosures
Fan/Space Heater
Power Supply &
Control Assembly
Disconnect Switch
or Circuit Breaker
Input Power
Terminals
I/O Conduit
(Bottom)
Note: Some UL Type 3R enclosures are designed to be mounted on a wall.
Mounting some of these 3R enclosures on an open rack system requires the use of
the supplied 3R enclosure back plates to maintain 3R integrity.
ACH550-PCR/PDR
Enclosures
Motor
Terminals
Gnd
Input Power
Terminals
Disconnect Switch
or Circuit Breaker
Input Power
Terminals
I/O Conduit
(Bottom)
ACH550 Installation, Operation and Maintenance Manual
UL Type / NEMA 1 & 12
ACH550
Hinged Door Wall Mount
Enclosures
Ground
Lug(s)
RHTR Temperature
HI / LO Jumper (X1)
Default Setting
(X1 jumper in LO position)
Alternate Setting
(X1 jumper in HI position)
The alternate (HI) setting further reduces the likelihood
of condensate in high humidity environments.
ACH550
Motor
Terminals
Ground
Lug
I/O Conduit
(Top)
Motor
Terminals
Heater ON Heater OFF
Temperature Temperature
14.4 °C 21.4 °C
58 °F 70.5 °F
17.8 °C 24.7 °C
64 °F 76.5 °C