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Mechanical relay form a – Watlow EZ-ZONE PM Express User Manual

Page 15

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EZ-ZONE PM Express (PID)

• 15 •

Install and Wire

Switched DC
• Supplied current up to a maximum of 30 mA. See

Power Supply note above.

• Short circuit limited to <50 mA
• 22 to 32VÎ (dc) open circuit voltage
• Use dc- and dc+ to drive external solid-state relay.
• DIN-A-MITE compatible

- single-pole: up to 4 in parallel or 4 in series
- 2-pole: up to 2 in parallel or 2 in series
- 3-pole: up to 2 in series

Open Collector
• 100 mA maximum output current sink
• 30VÎ (dc) maximum supply voltage
• Any switched dc output can use the common

terminal.

• Use an external power supply to control a dc load,

with the load positive to the positive of the power

supply, the load negative to the open collector and

common to the power supply negative.

See Quencharc note.

Mechanical Relay Form C
• 5 A at 240VÅ (ac) or 30VÎ (dc) maximum resis-

tive load

• 20 mA at 24V minimum load
• 125 VA pilot duty at 120/240VÅ (ac), 25 VA at

24VÅ (ac)

• 100,000 cycles at rated load
• Output does not supply power.
• For use with ac or dc
See Quencharc note.

Mechanical Relay Form A
• 5 A at 240VÅ (ac) or 30VÎ (dc) maximum resis-

tive load

• 20 mV at 24V minimum load
• 125 VA pilot duty @ 120/240VÅ (ac), 25 VA at

24VÅ (ac)

• 100,000 cycles at rated load
• Output does not supply power.
• For use with ac or dc
See Quencharc note.

NO-ARC Relay Form A
• 15 A at 85 to 264VÅ (ac) resistive load only
• 1/16 DIN models only
• 2,000,000 cycle rating for NO-ARC circuit
• 100 mA minimum load
• 2 mA maximum off state leakage
• Do not use on dc loads.
• Output does not supply power.

Solid-State Relay Form A
• 0.5 A at 20 to 264VÅ (ac) maximum resistive

load

• 20 VA 120/240VÅ (ac) pilot duty
• Opto-isolated, without contact suppression
• Maximum off state leakage of 105 microamperes
• Output does not supply power
• Do not use on dc loads.
• See Quencharc note.

Universal Process
• 4 to 20 mA into 800 Ω maximum load
• 0 to 10VÎ (dc) into voltage 1 kΩ minimum load
• Scalable
• Output supplies power (See Power Supply note

previous page).

• Cannot use voltage and current outputs at same

time

Quencharc Note:

Switching pilot duty inductive loads (relay coils, solenoids, etc.) with

the mechanical relay, solid state relay or open collector output op-

tions requires use of an R.C. suppressor.

L2

K2

Mechanical Relay Form A

PM _ C _ _ (J) - A A A A B _ _