Lenel LNL-3300-M5, Installation Manual, Page: 81 / 184

M Series Installation Guide
revision 7 —
81
26 Relay Output Wiring
Eight (8) Form-C and eight Form-A contact relays control door lock mechanisms or alarm signaling devices.
The relay contacts are rated at 2 A @ 30 VAC/DC, dry contact configuration.
When controlling power to the door strike, the Normally Open and Common poles are used. When
momentarily removing power to unlock the door, as with a magnetic lock, the Normally Closed and
Common poles are used. If the relay does not have a Normally Closed pole, the relay must be configured by
the host to be energized when in the locked state. Check with local building codes for proper egress door
installation.
Note: Excessive load switching causes contact wear and premature failure. Inductive load (strike)
switching causes EMI (electromagnetic interference) which may interfere with normal
operation of other equipment. To minimize premature contact failure and to increase system
reliability, use a contact protection circuit. Locate the protection circuit as close to the load as
possible [12 inches (30cm) recommended]. The circuit’s effectiveness decreases if it is located
further away.
Use a sufficiently large gauge wire to avoid voltage loss on the load current.
LNL-1200-16DOR Relay Definitions
Relay Terminal Block Description
1 TB1-1
TB1-2
TB1-3 Normally Closed (NC)
Common (C)
Normally Open (NO)
2 TB1-4
TB1-5
TB1-6 Normally Closed (NC)
Common (C)
Normally Open (NO)
3 TB1-7
TB1-8 Common (C)
Normally Open (NO)
4 TB1-9
TB1-10 Common (C)
Normally Open (NO)
5 TB2-1
TB2-2
TB2-3 Normally Closed (NC)
Common (C)
Normally Open (NO)
6 TB2-4
TB2-5
TB2-6 Normally Closed (NC)
Common (C)
Normally Open (NO)
7 TB2-7
TB2-8 Common (C)
Normally Open (NO)
8 TB2-9
TB2-10 Common (C)
Normally Open (NO)
9 TB3-1
TB3-2
TB3-3 Normally Closed (NC)
Common (C)
Normally Open (NO)