APL-5 Series Limit Switch Box
Installation Operation & Maintenance Manual
Doc No. : HUMG-APL5-16 Rev0 Page 3 / 13
1. General
1.1. HKC APL-5… series limit switch boxes are designed to provide accurate and reliable valve
position signalling and indicating of most valves or actuators manufactured.
1.2. APL-5… limit switch boxes consists of a visual position indicator, quick-set cam ass’y, terminal
strip, switch ass’y and easy mounting bracket. Quick-set cam allows for a quick and simple
hand operation in the setting of switches.
2. Ordering Information
APL - 5 1 0 N
① ② ③
① Enclosure type of explosion proof is based on IECEx :
Ex d IIC T6 Gb
Ex ia IIC T6 Gb (APL-520 * only)
Ex tb IIIC T85℃ Db, IP67
Enclosure type of explosion proof is based on ATEX :
II 2 G Ex d IIC T6 Gb
II 2 G Ex ia IIC T6 Gb (APL-520 * only)
II 2 D Ex tb IIIC T85℃ Db, IP67
Enclosure type of explosion proof is based on KCs, NEPSI :
Ex d IIC T6 Gb
Ex ia IIC T6 Gb (APL-520 * only, KCs only)
Ex tD A21 IP67 T85℃ (KCs only)
Enclosure type of explosion proof is based on CSA :
Class I, Division 1, Group B, C & D T6
Class I, Zone 1, AEx d IIC T6
Ex d IIC T6
② Switch type
10 : 2-SPDT (Wonwoo : SZM-V16-5FA-61)
11 : 3-SPDT (Wonwoo : SZM-V16-5FA-61)
12 : 4-SPDT (Wonwoo : SZM-V16-5FA-61)
13 : 2-SPST (Wonwoo : SZM-V16-5FA-61)
14 : 2-DPDT (Omron : DZ-10GW-1B)
15 : 2-SPDT + Potentiometer (Wonwoo : SZM-V16-5FA-61)
16 : 2-SPDT + Signal Unit(4~20mA) (Wonwoo : SZM-V16-5FA-61)
20 : Proximity Sensor (P&F : NJ2-V3-N)
21 : Proximity Sensor (Autonics : PS17-5DNU) (Except CSA)
23 : Proximity Sensor (P&F : NBB2-V3)
25 : Proximity Sensor (P&F : NJ2-V3-N) + Potentiometer
26 : Proximity Sensor (P&F : NJ2-V3-N) + Signal Unit(4~20mA)
30 : Reed type Proximity Sensor (MS-B 301)
③ Enclosure Material
N : Aluminium Alloy
S : Stainless Steel
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