Honeywell VARIODYN D1 User Manual

Installation Instruction VARIODYN
®
D1 System
FB 798663.GB0 / 05.19 45
6.3.1 Protection against a break in the neutral wire
The neutral conductor monitoring module (Part No. 584970) should be used to protect against a break in the
neutral conductor occurring. This module is connected upstream with the MSU contactor (Part No. 584971) and
enables the safe and immediate all-pole interruption of the power supply in the event of:
• undervoltage
• phase failure
• asymmetry, including for reverse voltage
• neutral conductor missing in the system
• neutral conductor break in the device supply cable
• neutral conductor mixed up with phase
The control panels must only be connected to the mains by qualified electricians and in compliance with all
relevant standards and guidelines.
MAINS
max.
3 x 18A
L1
L2
L3
N
PE
L1
L2
L3
N
1 3 5
2 4
6
8
L1
L2 L3 N
12
11
14 11 24 21
11
12
1
2
MSU
7
A1
A2
Fig. 38: Wiring example – protection against break in neutral conductor

Protection (Part No. 584971)

Neutral conductor monitoring module (Part No. 584970)
MSU Main-Switch-Unit (MSU) (Part No. 583371.21)

Honeywell VARIODYN D1 Specifications

General

Brand	Honeywell
Model	VARIODYN D1
Category	Network Hardware
Language	English