Model 610-N4X-SA
Inductive load: 5A, 240 VAC; 7.5A, 30 VDC
Max. operating current: 10A
Time delay relays K2 (and if applicable K5)
Resistive load: 10A, 240 VAC; 10A, 30 VDC
Inductive load: 7A, 240 VAC; 7.5A, 30 VDC
Max. operating current: 10A
Operating Temperature Range
-40°C to +175°C
Battery Backup
(If applicable)
2ea. 12V 2.9Ah batteries in series; ½ hour minimum operating time
Warranty
One
year
1.3 Relay Logic Description
Relay Assignments
The 610-N4X-SA comes with 3 or 5 Alarm Relays for use with one or two gases respectively. One or two of
these relays are timer relays (Dependent on one or two gas). (Refer to Figure 3) In this typical system the
Relays are:
K1 – Alarm 1 – H2S Low Relay
K2 – Alarm 2 – H2S High Time delay relay
K3 – Fault relay (Common Fault for three and five relay systems)
K4 – Alarm 1 – LEL Low Relay (If applicable)
K5 – Alarm 2 – LEL High Time delay Relay (If Applicable)
Alarm 1 – H2S/LEL Low
During Alarm 1 conditions, the Normally Energized coil(s) on the control modules will de-energize. This will
energize Alarm 1 Relay, K1 (or K4 if applicable), applying power to annunciators attached to alarm 1 (H2S or
LEL Low). Alarm 1 conditions can be Acknowledged and Reset via the RESET/ACK Switch on the front
panel of the unit.
Alarm 2 – H2S/LEL High
During Alarm 2 conditions the Normally Energized coil(s) on the control modules will de-energize. This will
energize the Alarm 2 Relay K2 (or K5 if applicable) applying power to annunciators attached to alarm 2 (H2S
or LEL High). The time delay relay controlling the annunciators will energize for a number of minutes
determined by the setting of the relay, and will then release. Alarm 2 conditions can be Acknowledged and
Reset via the RESET/ACK Switch on the front panel of the unit.
Fault Alarm
During Fault conditions, when any controller goes into fault, or upon loss of power, the Normally Energized
coil(s) on the control modules will de-energize. This will de-energize the Fault Relay K3, applying power to
the annunciators attached to the Fault relay.
1.4 Front Panel Alarm Reset
A Front Panel mounted, normally open, momentary switch is used to reset the alarms of all Model 10
controllers. The reset function is effective when the Model 10’s respective alarms have been programmed in
610-N4X-SA Instruction Manual
Rev. 0.1
Page 2 of 8
