Wiring the PYROBOX5-TRACE
Heater load connection
Provide 3-Phase contactors C1, C2, C3 and C4 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. 5
2
1
A
C C R
C
B
R
L1 N1
R
GFCI
Main
supply
120 VAC
F-5A
R
IN
IN
1
2
Current transformer
Transformer
130VA
120/24VAC
300 VAC max.
30 AMP max.
Heater load connection
L1,L2,L3 - 600 VAC max.
50 AMP max. per pole
Branch circuit protection and disconnect
provided by installer
Max. 60A
Aquastat
(option)
PYROULS
(By Meitav-tec)
In
ternal c
onnec
tions
Internal connections
Caution: Incorrect voltage may cause fire or seriously damage the unit.
Important!
If the heaters are connected in star, the neutral
must pass through the internal current transformer
ring and the external branch circuit protection.
A1
A
C1
B1
B
C
A1
A
C1
B1
B
C
A1
A
C1
B1
B
C
A1
A
C1
B1
B
C
See
Appendix 1
