OMRON EJ1N-TC2A-QNHB EJ1N-TC2B-QNHB EJ1N-TC4A-QQ EJ1N-TC4B-QQ EJ1N-TC2A-CNB EJ1N-TC2B-CNB EJ1C-EDUA-NFLK EJ1C-EDUC-NFLK Modular Temperature Controller

Heat-
er 
burn-
out 
alarm

E- 
vent 
in- 
puts

Basic 
Unit 
(tem- 
perature
control) 
*1

24 VDC
supplied
from the
End Unit

2

Voltage
output: 
2 
points 
(for 
SSR 
drive) 
*2

Tran- 
sistor 
output: 
2 points
(sinking)

None

2 *3

2

G3ZA 
con- 
nection
port: 
RS-485
From 
End 
Unit: 
Port A 
or port 
B: 
RS-485

Thermo- 
couple, 
platinum 
resist- 
ance 
ther- 
mometer,
analog 
voltage, 
and 
analog 
current 
selecta- 
ble 
for each 
channel.

M3 
terminal

EJ1N-TC2A-QNHB

Screw- 
less 
clamp

EJ1N-TC2B-QNHB

4

Voltage 
output: 
2 points
(for SSR 
drive) *2

None

None

M3 
terminal

EJ1N-TC4A-QQ

Screw- 
less 
clamp

EJ1N-TC4B-QQ

2

Current
output: 
2 
points

Tran- 
sistor 
output: 
2 points
(sinking)

2

M3 
terminal

EJ1N-TC2A-CNB

Screw- 
less 
clamp

EJ1N-TC2B-CNB

End 
Unit 
*1

24 VDC

None

None

None

Tran- 
sistor 
output: 
2 points
(sinking)

None

Port A 
or B: 
RS-485
Con- 
nector: 
Port A

No input

M3 
terminal

EJ1C-EDUA-NFLK

De- 
tachable
con- 
nector

EJ1C-EDUC-NFLK