Technical data

21
Add-on Residual Current Protection Unit PBHT
• By combination with miniature circuit breaker PLHT => RCBO-Unit (MCCB)
• Add-on residual current unit (screw connection) for 80 or 125 A
(2-pole and 4-pole)
• High flexibility and ease of installation thanks to variable wiring (400 mm
flexible connection wires 2p = 2 units, 4p = 4 units included in the set)
• Free selection of main power supply
• Auxiliary switch 1 NO included as standard in all PBHT versions
• Permits combinations with a variety of characteristics thanks to the differ-
ent rated currents and characteristics of the miniature circuit breakers PLHT
which can be connected
• For trade and industry applications
• For subsequent mounting onto 2, 3, 3+N and 4-pole-miniature circuit break-
ers PLHT
• Toggle (serves as switch position- and tripping indicator)
• The screw connection to the PLHT-device can be unscrewed at any time.
Consequently, in case of modifications of the systems to be protected, the
installation can be adapted to new requirements at any time.
Accessories:
Flexible connection wires (connection to PLHT) are included in the standard
set:
2-pole 80A 2 x 16mm
2
(400mm each)
4-pole 80A 4 x 16mm
2
(400mm each)
2-pole 125A 2 x 35mm
2
(400mm each)
4-pole 125A 4 x 35mm
2
(400mm each)
Electrical
Design according to IEC/EN 61009
Current test marks as printed onto the device
Current flow paths
Rated voltage U
e
230/400 V AC
Operational voltage range 196-440 V
Rated frequency 50 Hz
Rated current I
n
80 A, 125 A
Rated tripping current I
Δn
30, 300, 500, 1000 mA
Rated non-tripping current I
Δno
0.5 I
Δn
Sensitivity AC and pulsating DC
Tripping characteristic instantaneous 250A (8/20µs),
surge current-proof;
Type S 40 ms delay 6kA (8/20µs)
with selective disconnecting
function,
surge current-proof
Rated service short circuit breaking capacity I
cn
same as connected PLHT
Rated ultimate circuit breaking capacity I
cu
same as connected PLHT
Rated fault short circuit breaking capacity I
Δ/n
= I
cu
Rated peak withstand voltage U
imp
4 kV (1.2/50µs)
Endurance mechanical comp.
PBHT-80 >10000
PBHT-125 >8000
Endurance electrical comp.
PBHT-80 >1500
PBHT-125 >1000
Auxiliary Contact
Utilisation category AC15
Rated voltage U
e
250 V AC
Rated operational current I
e
16 A AC
Mechanical
Frame size 45 mm
Device height 90 mm
Device width 95 mm (5.5MU)
Depth of central body 60 mm
Mounting screwed onto PLHT
2-, 3-, 4-pole; PBHT-ASA
Upper and lower terminals lift terminals
Terminal protection finger and hand touch safe,
BGV A3, ÖVE-EN 6
Terminal capacity
Main conductor 2.5 - 50 mm
2
Auxiliary switch 1 - 25 mm
2
Degree of protection, built-in IP40
Permissible ambient temperature range -25°C to +40°C
Resistance to climatic conditions 25-55°C/90-95% relative
humidity acc. to IEC 60068-2
Dimensions (mm)
PBHT/2p + PLHT/2p PBHT/4p + PLHT/3p+N
PBHT/4p + PLHT/3p PBHT/4p + PLHT/4p
Connection diagrams
2-pole 4-pole
Technical Data
Protective Devices