Hochiki Europe (UK) Ltd – HE-PSU(4.0) Installation Manual
Page 3 of 10
2-3-0-997/ISS1/OCT07
2.2 Fuse Ratings
Input fuse -
T2A L250V. Replace only with a fuse of the same type.
Load fuse -
self-resetting polyfuse 4 Amp rated. (Not replaceable).
RPSM fuse-
Glass antisurge fuse 4A; BS4265
2.3 Batteries
Rechargeable, sealed lead acid Yuasa NP or equivalent. Maximum capacity 17 Ah, minimum capacity 7Ah.
Maximum current consumption from battery – 4A.
Quiescent current in mains failure mode - 30 mA.
3. INSTALLATION
This product should be installed, commissioned and maintained by trained service personnel in accordance
with the following:
(i) IEE regulations for electrical equipment in buildings
(ii) Codes of practice
Statutory requirements
Any instructions specifically advised by the manufacturer
3.1 Environmental Considerations
The operating temperature range should not exceed -5°C to +40°C (±2°).
Humidity levels should not exceed 96% (non-condensing).
3.2 Mounting
The HE-PSU(4.0) is supplied as an enclosure in portrait orientation with the terminal block to the left. The
requirements of EN60950 regarding creepage, clearance, marking and segregation must be taken into
consideration and the power supply should remain accessible for fuse replacement and to access screw
terminal connections.
The equipment is of Class1 construction so must be permanently and reliably connected to the fixed earth of
the installation.
The primary earth of the end use application must be permanently marked with the protective earth symbol
(IEC415 No. 5017). A suitable primary disconnecting device must be provided in the end use application.
Battery and load connections must be considered for connection to SELV (safety extra low voltage) circuits
only.
The maximum leakage current of the completed and installed equipment must not exceed 3.5mA..
