Wiring the PYROBOX3C-TRACE
Heater load connection
Provide 3-Phase contactors C1 and C2 with up to 600 VAC, 50 AMP Maximum per pole.
Provide contactor C5 with with up to 300 VAC, 30 AMP.
Make sure the wire Gauge (AWG) is suitable for the circuit Amperage draw, as specified in the NEC/
CEC table 1.
Main supply for the power box
Provide terminals L1, N1 with 120 VAC supply.
Connection to 3
rd
party ice/snow sensor (GIT-1 / CIT-1 / SIT/6E) - option
3-wire shielded cable
Up to 2,000 ft (609 m) using 12 AWG 3-wire shielded cable.
Up to 500 ft (152 m) using 18 AWG 3-wire shielded cable.
Tel: (856) 2882882
Tel: +972-3-9626462
Fax: +972-3-9626620
support@meitavtec.com
PYROBOX3/3C/5
-TRACE
Owner’s manual & Technician Settings
Pg. 6
Caution: Incorrect voltage may cause fire or seriously damage the unit.
2
1
A
C C R
C
B
R
L1 N1
R
GFCI
F-5A
R
IN
IN
1
2
Current transformer
Transformer
130VA
120/24VAC
Heater load connection
L1,L2,L3 - 600 VAC max.
50 AMP max. per pole
Internal connec
tions
Main
supply
120 VAC
Branch circuit
protection and
disconnect
provided by
installer
Max. 60A
Internal connections
Heater load
connection
300 VAC max.
30 AMP max.
C.T
Important!
If the heaters are connected in star, the
neutral must pass through the internal
current transformer and the external
Branch circuit protection.
A1
A
C1
B1
B
C
A1
A
C1
B1
B
C
See
Appendix 1
Aquastat
(option)
PYROULS
(By Meitav-tec)
