Watlow DIN-A-MITE Style C User Manual

Page 16

WATLOW DIN-A-MITE Style C User's Manual

WARNING:
Use National Electric (NEC)
or other country-specific
standard wiring practices to
install and operate the DIN-
A-MITE. Failure to do so may
result in damage to
equipment and property,
and/or injury or loss of life.

WARNING:
Wiring examples show L2 in
phase-to-phase, 200 VÅ (ac)
and above configuration. In
phase-to-neutral, 100 VÅ
(ac) and above applications,
L2 is neutral and must not be
fused or switched. Failure to
follow this guideline could
result in personal injury or
death.

WARNING:
Only authorized and qualified
personnel should be allowed
to install and perform
preventive and corrective
maintenance on this unit.
Failure to follow this
guideline could result in
damage to equipment, and
personal injury or death.

NOTE: If you plan to wire
multiple DIN-A-MITE alarm
outputs, you need to include
an intermediate relay for
each DIN-A-MITE used.

System Wiring Example

Ungrounded Delta or Wye Load

3-phase, 2-leg DIN-A-MITE

Alternative Latching Alarm Circuit

If there is a need for a latching alarm in the case of an open heater or
shorted SCR, the DIN-A-MITE alarm circuit could be used as shown in
the latching alarm example at right. If the DIN-A-MITE triac alarm
output energizes, it will energize the RY1 (external alarm relay)
mechanical relay coil. Once the RY1 coil is energized it will latch on (via
the RY1A normally open contact) until the power to the relay is
removed. You could cycle the power via a reset switch. The RY1B
contact set can be used for alarm signaling.

Breaker

120V~

(ac)

AC Common

AC High

480VÅ
(ac)

480V~

(ac)

CR1 = High-Limit Contactor

PM6C2FA - ALAJAAA

98
99
CC
CA
CB
B5
D6
D5

F1
G1
H1

T1
S1
R1

L4
K4
T2
S2
R2

High Limit TC

Controller TC

CR1

Coil

To DIN-A-MITE C

Pin 7+, 8- (page 17)