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PW7K1R1E Wiring and Setup
Relay Circuit Wiring
Figure 2-4: Input Circuit Wiring
2.12 Relay Circuit Wiring
Four Form-C contact relays are provided for controlling door lock mechanisms or
alarm signaling. The relay contacts are rated at 2A @ 30VDC, resistive and are in a
dry contact configuration.
Each relay has a Common pole (C), a Normally Open pole (NO) and a Normally
Closed pole (NC).
• When you are controlling the delivery of power to the door strike, the
Normally Open and Common poles are used.
• When you are momentarily removing power to unlock the door, as with a
mag lock, the Normally Closed and Common poles are used.
Check with local building codes for proper egress door installation.
Note: It is possible for the PW7K1R1E to provide power for a 12 VDC door strike
providing the maximum current is not exceeded, see specification section
Caution: Door lock mechanisms can generate feedback to the relay circuit which can
cause damage and premature failure of the relay. For this reason, it is recommended
that you should use either a diode or MOV (metal oxide varistor) to protect the relay.
Wire should be of sufficient gauge to avoid voltage loss.
1K,1%
1K,1%
1K,1%
Standard Supervised Circuit,
Normally Closed Contact
Standard Supervised Circuit,
Normally Open Contact
Unsupervised Circuit,
Normally Open Contact
Unsupervised Circuit,
Normally Closed Contact
TB2
IN4
IN2
IN3
1
IN1
TB1
1
}
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