Internal Wiring to Power Terminal DTS 31x1, 31x1 SL, 32x1, 32x5, 33X1, 35X1, and 36x1
Tools Needed
A WAGO Screwdriver
General Requirements for Safe and Reliable Operation
Main supply connection
Potential hazard due to incorrect cables
An incorrect cable cross-section will cause the cable to overheat. Scorched insulation can cause fires.
The cable cross-section matches the output required for the power consumption and is 1 – 2.5mm² or AWG18 to AWG14.
Electric arcing can cause electric shock and burns.
When disconnecting and connecting the plug connector for mains connection under load
or voltage, electric arcing, dangerous voltage and electric shock can occur.
• The plug connector for mains connection must never be plugged in or disconnected under
load/voltage.
• Work on plug connectors must only be carried out with adequate lighting.
• Always disconnect power to unit.
The following general requirements must be ensured for safe and reliable operation of the
cooling units:
• Upstream installation of a supply-side temperature regulator is prohibited.
• Connect the upstream fuse specified on the type plate as wiring protection; see Type plate.
• Ensure that the type plate specifications for rated values match the present values for
mains voltage and mains frequency; see Type plate.
• Always connect the cooling unit to the mains by means of a separating device (switch/contactor).
Life-threatening hazard due to electric shock
Circuit breaker systems that are not connected or attached incorrectly can generate hazardous voltages and electric shock and cause severe accidents.
• Work on electrical connections must be carried out exclusively by trained, qualified electricians.
• Circuit breakers systems must be provided in accordance with DIN EN 60204-1, chapter 8.2.
• Each element of electrical equipment must be connected to the circuit breaker system.
• Never interrupt the circuit breaker system if electrical equipment is attached to covers, doors or
cover panels.
• If parts are removed, e.g. for maintenance work, ensure that the circuit breaker system is not
interrupted for the remaining parts
Requirements
• All general requirements for safe and reliable operation are assured
• The cooling unit is de-energized.
Procedure
• Feed the power cable into the unit.
• Use Figures 1, 2, and 3 to determine the correct connection terminal that
corresponds with the power cable connection.
• Insert a WAGO screwdriver firmly into the WAGO opening terminal. Never twist the
screwdriver: otherwise, the terminal will be damaged.
• After inserting the correct power cable connection remove the WAGO screwdriver and move
to the next connection.
• Repeat until all connections are inserted correctly.
• Before switching on, ensure that the mains voltage matches the upstream fuse; see Type plate.
• The cooling unit is connected electrically
