Fuji Electric MICREX-SX series SPF - Output Circuit Configuration and External Connections

3-11
Section 3 Specications
(2) Output circuit conguration and external connections
Each relay can provide current up to 2A. The maximum rated current in all output commons of SPF is 4A. Its mechanical lifetime
can reach up to 2 million times. The lifetime also varies depending on working voltage, load type (power factor cosψ) and
contact current. In the case of pure resistive load (cosψ=1.0) at 120VAC and 2A, the lifetime of contacts is about 250 thousand
times. While for high inductive or capacitive load with cosψ up to 0.2 and current within 1A, the lifetime decreases rapidly to
about 50 thousand times (AC200V) or 80 thousand times (AC120V).
AC/DC
power
supply
AC/DC
power
supply
A4
Fuse
A4
Fuse
SPF
resistive
resistive
Contact current (A)
Life curve
Operation (x10
4
)