The Schlage S00033868134-KIT is the unassembled chassis kit for the Schlage ND Series electrified cylindrical lock, covering both the ND12EL (exit lock, electrically locked) and ND80EL (storeroom lock, electrically locked) functions. It ships unassembled, which means all internal chassis components are included but the kit requires on-site assembly before installation. This format is common in locksmith and facility maintenance supply chains where keeping an unassembled chassis in inventory allows one part number to be built out for multiple configurations as needed.

The EL designation on both ND12 and ND80 functions means Electrically Locked - also called Fail Safe. The outside lever is locked by applied voltage and unlocks when power fails. This is the correct configuration for any door where the default safe condition is unlocked: fire exits, emergency egress routes, and any door that building and life safety codes require to be passable when power is cut. For Fail Secure (electrically unlocked, default locked), the correct chassis is the ND12EU/ND80EU variant.

Schlage ND Series Chassis: EL vs EU and What the Chassis Switches

The electrified ND chassis is the core of what makes the ND12/ND80 a wired access control lock. Unlike mechanical ND functions, the electrified chassis houses the motor mechanism, mode select switch, and Allegion Connect Molex connector system. The mode select switch on the chassis body is what physically determines whether the lock operates as EL (fail safe) or EU (fail secure) - and critically, Schlage's wiring instruction confirms this can be changed by toggling that switch in the field. Specifying EL or EU on the order simply sets the factory pre-set position.

This matters for the unassembled kit: the chassis arrives in the factory-set EL position. If a field conversion to EU is later needed, a single switch toggle followed by a complete lock/unlock power cycle synchronizes the chassis to the new mode.

Schlage Mortise Chassis: ND12 and ND80 Function Difference

The ND12 and ND80 share the same electrified chassis - the S00033868134-KIT covers both functions. The difference is in trim and latch behavior, not the chassis itself. ND12 is the exit lock: the outside lever is fixed (closed), and the inside lever always operates freely for egress. ND80 is the storeroom lock: the outside lever is continuously locked until unlocked electrically or by key, and the inside lever always operates freely. Both functions use an auxiliary deadlatch to deadlock the latchbolt when the door closes.

Schlage ND Series Chassis Electrical Specifications

The electrified ND chassis runs on DC power only - AC power is not compatible and will damage the chassis. Operating voltage range is 10.8 to 26.4 VDC, meaning the chassis auto-detects and operates correctly at both 12VDC and 24VDC without any configuration change. Maximum current draw is 0.23 amps. The holding current is only 0.010 amps - a figure Schlage specifically engineered to eliminate hot levers in fail-safe (always-energized) applications. The motor-driven mechanism (rather than a solenoid) keeps power consumption low while still ensuring the latch engages reliably, even under load.

The Allegion Connect Molex connector system is integrated into the chassis, making hinge and harness installation quick and easy. If needed, it can be cut off and the system can be installed using standard wire splicing methods.