WTR 2.5 OR
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WTR 2.5 OR

WTR 2.5 OR

Test-disconnect terminal, Screw connection, orange, 2.5 mm², 24 A, 500 V, Number of connections: 2, Number of levels: 1

Product ID 1878530000
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Approvals General ordering data Dimensions and weights Temperatures Environmental Product Compliance Material data Rating data IECEx/ATEX System specifications Additional technical data Conductors for clamping (additional connection) Conductors for clamping (rated connection) CSA rating data Dimensions General Rating data UL rating data Classifications

Approvals

Approvals
![](https://assets.dam.weidmueller.com/assets/api/8761d6a8-633c-4aff-8793-97a5d2b0ca50/DAP_Master_ICON,w_80,q_80) 
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![](https://assets.dam.weidmueller.com/assets/api/7849a070-6e16-4866-9b5a-c610b7f622e5/DAP_Master_ICON,w_80,q_80) 
![](https://assets.dam.weidmueller.com/assets/api/2fb608f0-c73d-4515-a7a5-878046a505f4/DAP_Master_ICON,w_80,q_80) 
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![](https://assets.dam.weidmueller.com/assets/api/52b59257-358c-4bc4-9ea4-df407cebf157/DAP_Master_ICON,w_80,q_80) 
![](https://assets.dam.weidmueller.com/assets/api/35c2d189-508a-474d-b19d-eb9035fb9c7c/DAP_Master_ICON,w_80,q_80) 
![](https://assets.dam.weidmueller.com/assets/api/5855f480-81e6-48e1-aa53-1e87419df7ba/DAP_Master_ICON,w_80,q_80) 
![](https://assets.dam.weidmueller.com/assets/api/70d4994d-1e1f-4a62-8b8a-96bcbd57aca3/DAP_Master_ICON,w_80,q_80) 
![](https://assets.dam.weidmueller.com/assets/api/5855f480-81e6-48e1-aa53-1e87419df7ba/DAP_Master_ICON,w_80,q_80) 
ROHS
Conform 
UL File Number Search
[UL Website](https://database.ul.com/cgi-bin/XYV/cgifind/LISEXT/1FRAME/gfilenbr.html) 
Certificate No. (UR)
E60693 

General ordering data

Version
Test-disconnect terminal, Screw connection, orange, 2.5 mm², 24 A, 500 V, Number of connections: 2, Number of levels: 1 
Order No.
1878530000 
Type
WTR 2.5 OR 
GTIN (EAN)
4032248491469 
Qty.
100 items

Dimensions and weights

Depth
48 mm
Depth (inches)
1,89 inch
Depth including DIN rail
49 mm
Height
60 mm
Height (inches)
2,362 inch
Width
5,1 mm
Width (inches)
0,201 inch
Net weight
8,04 g

Temperatures

Storage temperature
-25 °C...55 °C 
Ambient temperature
-50 °C…75 °C 
Continuous operating temp., min.
-50 °C
Continuous operating temp., max.
120 °C

Environmental Product Compliance

RoHS Compliance Status
Compliant without exemption 
REACH SVHC
No SVHC above 0.1 wt% 

Material data

Grundläggande material
Wemid 
Färgkod
orange 
Класс пожаростойкости UL 94
V-0 

Rating data IECEx/ATEX

Certificate No. (ATEX)
DEMKO14ATEX1389U 
Certificate No. (IECEX)
IECExUL14.0097U 
Max. voltage (ATEX)
500 V 
Current (ATEX)
21 A 
Wire cross section max. (ATEX)
2.5 mm² 
Max. voltage (IECEX)
500 V 
Current (IECEX)
21 A 
Wire cross section max. (IECEX)
2.5 mm² 
Marking EN 60079-7
Ex ec II C Gc 
Ex 2014/34/EU label
II 3 G 

System specifications

Version
Screw connection 
Spacer 
for plug-in cross-connector 
One end without connector 
End cover plate required
Yes 
Number of potentials
1 
Number of levels
1 
Number of clamping points per level
2 
Number of potentials per tier
1 
Levels cross-connected internally
No 
PE connection
No 
Mounting rail
TS 35 
N-function
No 
PE function
No 
PEN function
No 

Additional technical data

Explosion-tested version
No 
Type of mounting
Snap-on 
Öppna sidor
right 

Conductors for clamping (additional connection)

Connection type, additional connection
Screw connection 

Conductors for clamping (rated connection)

Screw connection 
Blade size
0.6 x 3.5 mm 
Clamping range, max.
4 mm²
Clamping range, min.
0,05 mm²
Clamping screw
M 2.5 
Connection cross-section, stranded, max.
4 mm²
Connection cross-section, stranded, min.
0,05 mm²
Connection direction
on side 
Gauge to IEC 60947-1
A3 
Number of connections
2 
Průřez připojení vodiče, pevné jádro, min.
0,05 mm²
Průřez připojení vodičů, jemně splétané, min.
0,05 mm²
Stripping length
10 mm
Tightening torque, max.
0,8 Nm
Tightening torque, min.
0,4 Nm
Torque level with DMS electric screwdriver
1 
Type of connection 2
Screw connection 
Wire connection cross section AWG, max.
AWG 12 
Wire connection cross section AWG, min.
AWG 30 
Wire connection cross section, finely stranded, max.
4 mm²
Wire connection cross section, finely stranded, min.
0,05 mm²
Wire connection cross-section, finely stranded with wire-end ferrules DIN 46228/1, max.
2,5 mm²
Wire connection cross-section, finely stranded with wire-end ferrules DIN 46228/1, min.
0,05 mm²
Wire connection cross-section, finely stranded with wire-end ferrules DIN 46228/4, min.
0,05 mm²
Wire connection cross-section, solid core, max.
4 mm²

CSA rating data

Průřez vodiče max. (CSA)
12 AWG 
Průřez vodiče min. (CSA)
26 AWG 
Velikost napětí C (CSA)
300 V 
Velikost proudu C (CSA)
10 A 
Č. osvědčení (CSA)
154685-1152890 

Dimensions

TS 35 offset
30 mm

General

Mounting rail
TS 35 
Standards
IEC 60947-7-1 
Wire connection cross section AWG, max.
AWG 12 
Wire connection cross section AWG, min.
AWG 30 

Rating data

Märkarea
2,5 mm²
Rated voltage
500 V
Märkspänning DC
500 V
Znamionowe natężenie prądu
24 A
Current at maximum wires
24 A
Standards
IEC 60947-7-1 
Volume resistance according to IEC 60947-7-x
1,33 mΩ
Rated impulse withstand voltage
6 kV 
Power loss in accordance with IEC 60947-7-x
0,77 W
Pollution severity
3 

UL rating data

Current size C (UR)
20 A 
Ledarstorlek Field wiring max (UR)
12 AWG 
N° certificato (UR)
E60693 
Sección del conductor Cableado de fábrica máx. (UR)
12 AWG 
Vezetékméret, gyári vezetékezés, min. (UR)
30 AWG 
Voltage size C (UR)
600 V 
컨덕터 크기 필드 결선 최소(UR)
30 AWG 

Classifications

ETIM 8.0
EC000902 
ETIM 9.0
EC000902 
ETIM 10.0
EC000902 
ECLASS 14.0
27-25-01-09 
ECLASS 15.0
27-25-01-09