Hubbell Electric Heater Company J4 Connector, Common NO NC, Optional Remote Alarm Contacts

4.Make connections as required to the relay terminal block. When the temperature drops below the XB1 setpoint the relay is open between Normally Open (NO) and Common (C) and the LED will flash green. When the temperature is above the XB1 setpoint the relay is closed between NO and C and the LED will be solid green. Use NO and C for low temperature interlock or high temperature alarm. Use Normally Closed (NC) and C for low temperature alarm. A red LED indicates an error.

Relay Terminal Block	LED
Temperature Adjustment	Note: Rating (resistive):
	Max.: 5A	@ 120VAC
Potentiometer	5A	@ 24VDC

OPTIONAL REMOTE ALARM CONTACTS

1.If desired, the control board can be wired to a remote alarm to indicate a reset fault condition. These fault conditions include over-temperature, no probe, and low water (when the configuration is set to manual reset).

2.This alarm can be wired to the J4 connector on the control board as shown below. To facilitate this installation, an optional adapter, Hubbell P/N PLUG ADAPTER J4, can be purchased to provide wire connections.

J4 Connector

PLUG ADAPTER J4

Common (NO)

(NC)

Note: Rating (resistive)

Max. Switching Power:

60W, 62.5VA

Max. Switching Voltage:

220VDC, 250VAC

Max. Switching Current: 2A

Max. Carrying Current: 3A

OPTIONAL FIELD CONVERSION FROM SINGLE TO THREE PHASE OR THREE TO SINGLE PHASE (6, 7, and 9 kW models in 208 and 240 volts only)

1.Find the appropriate diagram for the unit to be converted in the following chart titled “Wiring Chart”.

2.Re-wire the unit according to the diagram.

NOTE: The wire to be used for internal wiring must conform to SEW-2 or PTFE (200°C) and must match the wire size currently in use. Contact the factory for assistance, if required.

3.Contact the factory for correct labels. The factory will need the serial number for proper identification.

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