Skip to accessibility statement
Free shipping on orders over $99
●
Your Zip:
43230
ORDER STATUS
Your Zip:
43230
HELP
MENU
CONTACT & SUPPORT
Live Chat Offline:
Email Us
SIGN IN
0
CART
×
SIGN IN
Shop by Category
Plumbing
Heating
HVAC
Electrical
PEX
Fittings
Valves
Tools
Resources
Our Team
Account
Order History
Returns
Customer Support
Give Us Feedback
Tools
Reorder
Quick Order
Saved Carts
Lists
Resources
PEX Plumbing
PEX Tools
Radiant Heat
Boiler Room
Plumbing Supplies
Air Conditioning
Video Library
Project Calculators
Find Parts For Your Unit
Filter menu expanded
Filters
Hide Filters
885 items
Reset
SORT
Top Sellers
Default
Price ▲
Price ▼
Product Availability
–
Show In Stock Only</strong> Filter (540)
Show
In Stock Only
(540)
Category
–
Burner Accessories (30)
Miscellaneous Parts (680)
Pressure Controls (13)
Restrictors (1)
Temperature Sensors (161)
Review Score
–
5 Filter (16)
(16)
4 Filter (1)
(1)
Price Range
–
Under $1 Filter (1)
Under $1 (1)
$1 to $5 Filter (2)
$1 to $5 (2)
$5 to $10 Filter (7)
$5 to $10 (7)
$10 to $15 Filter (10)
$10 to $15 (10)
$15 to $20 Filter (11)
$15 to $20 (11)
$20 to $25 Filter (6)
$20 to $25 (6)
$25 to $30 Filter (18)
$25 to $30 (18)
$30 to $35 Filter (12)
$30 to $35 (12)
$35 to $40 Filter (10)
$35 to $40 (10)
$40 to $45 Filter (17)
$40 to $45 (17)
See More
Home
HVAC Supplies
HVAC Replacement Parts
Siemens Parts
Siemens Parts
885 items
FILTER
Grid
List
Sort: Top Sellers
ECCS1 Compare Checkbox
Compare
Collar Strap for Ground Bars (12-2/0 AWG)
SKU:
ECCS1
Siemens
SKU:
ECCS1
Brand:
Siemens
(1)
–
+
$3.78
each
ADD TO CART
Add to List
In Stock
Get 311 by
Tue, Jun 9
Total Available: 723
In Stock
Get 311 by
Tue, Jun 9
Total Available: 723
Add to List
QAP1030.200 Compare Checkbox
Compare
6.5" Cable Temperature Sensor, 10k Ohm Type 2 Thermistor
SKU:
QAP1030.200
Siemens
SKU:
QAP1030.200
Brand:
Siemens
(1)
–
+
$14.47
each
ADD TO CART
Add to List
In Stock
Get 23 by
Tue, Jun 9
Total Available: 226
In Stock
Get 23 by
Tue, Jun 9
Total Available: 226
Add to List
QAA2280.FWSC Compare Checkbox
Compare
Room Temperature Sensor, Full HMI
SKU:
QAA2280.FWSC
Siemens
SKU:
QAA2280.FWSC
Brand:
Siemens
(1)
–
+
$171.48
each
ADD TO CART
Add to List
In Stock
Get 57 by
Tue, Jun 9
Total Available: 347
In Stock
Get 57 by
Tue, Jun 9
Total Available: 347
Add to List
QRA4.U Compare Checkbox
Compare
QRA4.U UV Flame Detector
SKU:
QRA4.U
Siemens
SKU:
QRA4.U
Brand:
Siemens
(1)
–
+
$305.74
each
ADD TO CART
Add to List
In Stock
Get 1 by
Tue, Jun 9
Total Available: 16
In Stock
Get 1 by
Tue, Jun 9
Total Available: 16
Add to List
EC3GB27 Compare Checkbox
Compare
27 Position Ground Bar Kit
SKU:
EC3GB27
Siemens
SKU:
EC3GB27
Brand:
Siemens
–
+
$9.60
each
ADD TO CART
Add to List
Out of Stock
Get it by
Tue, Jun 23 - Tue, Jun 30
Out of Stock
Get it by
Tue, Jun 23 - Tue, Jun 30
Add to List
ECINSGB14 Compare Checkbox
Compare
14 Position Insulated Ground Bar Kit
SKU:
ECINSGB14
Siemens
SKU:
ECINSGB14
Brand:
Siemens
–
+
$22.19
each
ADD TO CART
Add to List
In Stock
Get 99 by
Tue, Jun 9
Total Available: 177
In Stock
Get 99 by
Tue, Jun 9
Total Available: 177
Add to List
ECGB10 Compare Checkbox
Compare
10 Position Ground Bar Kit
SKU:
ECGB10
Siemens
SKU:
ECGB10
Brand:
Siemens
–
+
$9.46
each
ADD TO CART
Add to List
In Stock
Get 3 by
Tue, Jun 9
Total Available: 582
In Stock
Get 3 by
Tue, Jun 9
Total Available: 582
Add to List
ECCS2 Compare Checkbox
Compare
Collar Strap for Ground Bars (6 AWG-250 kcmil)
SKU:
ECCS2
Siemens
SKU:
ECCS2
Brand:
Siemens
–
+
$11.93
each
ADD TO CART
Add to List
In Stock
Get 29 by
Wed, Jun 10
Total Available: 67
In Stock
Get 29 by
Wed, Jun 10
Total Available: 67
Add to List
ECLX069M Compare Checkbox
Compare
7 Position Ground Bar Kit
SKU:
ECLX069M
Siemens
SKU:
ECLX069M
Brand:
Siemens
–
+
$7.88
each
ADD TO CART
Add to List
In Stock
Get 10 by
Tue, Jun 9
Total Available: 121
In Stock
Get 10 by
Tue, Jun 9
Total Available: 121
Add to List
LFL1.335-110V Compare Checkbox
Compare
Gas Burner Control (120V)
SKU:
LFL1.335-110V
Siemens
SKU:
LFL1.335-110V
Brand:
Siemens
–
+
$2,018.44
each
ADD TO CART
Add to List
In Stock
Get 20 by
Wed, Jun 10
In Stock
Get 20 by
Wed, Jun 10
Add to List
540-680FA Compare Checkbox
Compare
Series 1000 Room Temperature Sensor w/ Setpoint, Beige
SKU:
540-680FA
Siemens
SKU:
540-680FA
Brand:
Siemens
–
+
$574.32
each
ADD TO CART
Add to List
In Stock
Get 4 by
Tue, Jun 9
Total Available: 44
In Stock
Get 4 by
Tue, Jun 9
Total Available: 44
Add to List
544-577-25 Compare Checkbox
Compare
2-1/2" Liquid Immersion Platinum Temperature Sensor, 1k Ohm (375 Alpha)
SKU:
544-577-25
Siemens
SKU:
544-577-25
Brand:
Siemens
–
+
$82.54
each
ADD TO CART
Add to List
In Stock
Get 9 by
Tue, Jun 9
Total Available: 56
In Stock
Get 9 by
Tue, Jun 9
Total Available: 56
Add to List
ECLX072M Compare Checkbox
Compare
15 Position Ground Bar Kit
SKU:
ECLX072M
Siemens
SKU:
ECLX072M
Brand:
Siemens
–
+
$11.19
each
ADD TO CART
Add to List
In Stock
Get 16 by
Tue, Jun 9
Total Available: 54
In Stock
Get 16 by
Tue, Jun 9
Total Available: 54
Add to List
540-984 Compare Checkbox
Compare
Flush Mount Room Temperature Sensor w/ 10K Ohm Type II Thermistor, Metal
SKU:
540-984
Siemens
SKU:
540-984
Brand:
Siemens
–
+
$16.12
each
ADD TO CART
Add to List
Backorder
Get it by
Wed, Jul 8 - Wed, Aug 5
Backorder
Get it by
Wed, Jul 8 - Wed, Aug 5
Add to List
540-143 Compare Checkbox
Compare
MMI Cable
SKU:
540-143
Siemens
SKU:
540-143
Brand:
Siemens
–
+
$82.57
each
ADD TO CART
Add to List
In Stock
Get 5 by
Tue, Jun 9
Total Available: 24
In Stock
Get 5 by
Tue, Jun 9
Total Available: 24
Add to List
QFA3171 Compare Checkbox
Compare
Room Sensor for Temperature & Relative Humidity, 4 to 20 mA
SKU:
QFA3171
Siemens
SKU:
QFA3171
Brand:
Siemens
–
+
$283.84
each
ADD TO CART
Add to List
In Stock
Get 6 by
Tue, Jun 9
Total Available: 31
In Stock
Get 6 by
Tue, Jun 9
Total Available: 31
Add to List
S55803-Y130-A100 Compare Checkbox
Compare
Wlan Stick, S55803-Y130-A100
SKU:
S55803-Y130-A100
Siemens
SKU:
S55803-Y130-A100
Brand:
Siemens
–
+
$147.77
each
ADD TO CART
Add to List
In Stock
Get 16 by
Wed, Jun 10
In Stock
Get 16 by
Wed, Jun 10
Add to List
201-1000 Compare Checkbox
Compare
Diaphragm-Operated Pressure Reducing Valve
SKU:
201-1000
Siemens
SKU:
201-1000
Brand:
Siemens
–
+
$138.21
each
ADD TO CART
Add to List
In Stock
Get 7 by
Tue, Jun 9
Total Available: 19
In Stock
Get 7 by
Tue, Jun 9
Total Available: 19
Add to List
544-339-18 Compare Checkbox
Compare
18" Platinum Duct Point Sensor, 1K Ohm (375 Alpha)
SKU:
544-339-18
Siemens
SKU:
544-339-18
Brand:
Siemens
–
+
$42.99
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Jun 9
Total Available: 19
In Stock
Get 2 by
Tue, Jun 9
Total Available: 19
Add to List
540-660B Compare Checkbox
Compare
TEC Room Sensor - White
SKU:
540-660B
Siemens
SKU:
540-660B
Brand:
Siemens
–
+
$245.19
each
ADD TO CART
Add to List
In Stock
Get 7 by
Tue, Jun 9
Total Available: 24
In Stock
Get 7 by
Tue, Jun 9
Total Available: 24
Add to List
540-660A Compare Checkbox
Compare
Series 1000 Room Temperature Sensor, 10K Ohm
SKU:
540-660A
Siemens
SKU:
540-660A
Brand:
Siemens
–
+
$248.28
each
ADD TO CART
Add to List
In Stock
Get 12 by
Tue, Jun 9
Total Available: 41
In Stock
Get 12 by
Tue, Jun 9
Total Available: 41
Add to List
ECLK2 Compare Checkbox
Compare
Neutral Lug Kit for EQIII, PL, and ES Load Centers 4-2/0 AWG
SKU:
ECLK2
Siemens
SKU:
ECLK2
Brand:
Siemens
(1)
–
+
$11.52
each
ADD TO CART
Add to List
In Stock
Get 8 by
Tue, Jun 9
Total Available: 17
In Stock
Get 8 by
Tue, Jun 9
Total Available: 17
Add to List
540-995 Compare Checkbox
Compare
APOGEE TEC NTC Thermistor, 10k Ohm
SKU:
540-995
Siemens
SKU:
540-995
Brand:
Siemens
(2)
–
+
$36.29
each
ADD TO CART
Add to List
In Stock
Get 4 by
Tue, Jun 9
Total Available: 30
In Stock
Get 4 by
Tue, Jun 9
Total Available: 30
Add to List
SAX61.03U Compare Checkbox
Compare
30 Sec. NSR Electromotoric Actuator, 0-10 VDC (24V)
SKU:
SAX61.03U
Siemens
SKU:
SAX61.03U
Brand:
Siemens
(1)
–
+
$363.47
each
ADD TO CART
Add to List
In Stock
Get 3 by
Tue, Jun 9
Total Available: 18
In Stock
Get 3 by
Tue, Jun 9
Total Available: 18
Add to List
587-184 Compare Checkbox
Compare
Room Temperature Sensor, Talon, White
SKU:
587-184
Siemens
SKU:
587-184
Brand:
Siemens
–
+
$189.54
each
ADD TO CART
Add to List
In Stock
Get 8 by
Tue, Jun 9
Total Available: 20
In Stock
Get 8 by
Tue, Jun 9
Total Available: 20
Add to List
ECLK1-2 Compare Checkbox
Compare
Neutral Lug Kit for EQIII Load Centers 2-1/0 AWG
SKU:
ECLK1-2
Siemens
SKU:
ECLK1-2
Brand:
Siemens
–
+
$8.87
each
ADD TO CART
Add to List
In Stock
Get 5 by
Tue, Jun 9
Total Available: 25
In Stock
Get 5 by
Tue, Jun 9
Total Available: 25
Add to List
QFM81.2 Compare Checkbox
Compare
Duct Hygrostat w/ External Setpoint Dial, SPDT
SKU:
QFM81.2
Siemens
SKU:
QFM81.2
Brand:
Siemens
–
+
$160.63
each
ADD TO CART
Add to List
Backorder
Get it by
Wed, Jul 8 - Wed, Aug 5
Backorder
Get it by
Wed, Jul 8 - Wed, Aug 5
Add to List
544-342-24 Compare Checkbox
Compare
24 Ft. Platinum Flexible Averaging Duct Temperature Sensor - 1k Ohm
SKU:
544-342-24
Siemens
SKU:
544-342-24
Brand:
Siemens
–
+
$123.21
each
ADD TO CART
Add to List
In Stock
Get 6 by
Tue, Jun 9
Total Available: 17
In Stock
Get 6 by
Tue, Jun 9
Total Available: 17
Add to List
533-380-24 Compare Checkbox
Compare
24 Ft. Platinum RTD Flexible Duct Averaging Temperature Sensor - 100 Ohm
SKU:
533-380-24
Siemens
SKU:
533-380-24
Brand:
Siemens
(1)
–
+
$154.40
each
ADD TO CART
Add to List
In Stock
Get 4 by
Tue, Jun 9
Total Available: 22
In Stock
Get 4 by
Tue, Jun 9
Total Available: 22
Add to List
GQD126.1P Compare Checkbox
Compare
24v Spring- Return Actuator 20in-lb 2-auxsw Act, GQD126.1P
SKU:
GQD126.1P
Siemens
SKU:
GQD126.1P
Brand:
Siemens
–
+
$244.92
each
ADD TO CART
Add to List
In Stock
Get 13 by
Wed, Jun 10
In Stock
Get 13 by
Wed, Jun 10
Add to List
QFM2101 Compare Checkbox
Compare
Q-Series Duct Humidity Sensor, (5%) 4 to 20 mA
SKU:
QFM2101
Siemens
SKU:
QFM2101
Brand:
Siemens
(1)
–
+
$160.20
each
ADD TO CART
Add to List
In Stock
Get 5 by
Wed, Jun 10
In Stock
Get 5 by
Wed, Jun 10
Add to List
QAE2030.005 Compare Checkbox
Compare
2-1/2" NTC Type 2 Immersion Temperature Sensor - 10k Ohm
SKU:
QAE2030.005
Siemens
SKU:
QAE2030.005
Brand:
Siemens
–
+
$57.50
each
ADD TO CART
Add to List
In Stock
Get 3 by
Tue, Jun 9
Total Available: 17
In Stock
Get 3 by
Tue, Jun 9
Total Available: 17
Add to List
QAM2030.010 Compare Checkbox
Compare
4" NTC Type 2 Duct Point Temperature Sensor - 10k Ohm
SKU:
QAM2030.010
Siemens
SKU:
QAM2030.010
Brand:
Siemens
–
+
$23.58
each
ADD TO CART
Add to List
In Stock
Get 5 by
Wed, Jun 10
Total Available: 8
In Stock
Get 5 by
Wed, Jun 10
Total Available: 8
Add to List
QAA2212.FWSN Compare Checkbox
Compare
Room Temperature Sensor, Full Feature
SKU:
QAA2212.FWSN
Siemens
SKU:
QAA2212.FWSN
Brand:
Siemens
–
+
$131.00
each
ADD TO CART
Add to List
In Stock
Get 13 by
Tue, Jun 9
Total Available: 50
In Stock
Get 13 by
Tue, Jun 9
Total Available: 50
Add to List
QFM3101 Compare Checkbox
Compare
Q-Series Duct Humidity Sensor, (2%) 4 to 20 mA
SKU:
QFM3101
Siemens
SKU:
QFM3101
Brand:
Siemens
(1)
–
+
$241.00
each
ADD TO CART
Add to List
In Stock
Get 9 by
Wed, Jun 10
Total Available: 13
In Stock
Get 9 by
Wed, Jun 10
Total Available: 13
Add to List
QRA2-1 Compare Checkbox
Compare
QRA2(1) Normal Sensitivity Flame Detector w/ Black Terminal Cover
SKU:
QRA2-1
Siemens
SKU:
QRA2-1
Brand:
Siemens
(1)
–
+
$534.93
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Jun 9
Total Available: 23
In Stock
Get 2 by
Tue, Jun 9
Total Available: 23
Add to List
QRI2B2.B180B Compare Checkbox
Compare
Infrared Flame Detector (Side Viewing)
SKU:
QRI2B2.B180B
Siemens
SKU:
QRI2B2.B180B
Brand:
Siemens
–
+
$1,144.67
each
ADD TO CART
Add to List
In Stock
Get 4 by
Tue, Jun 9
Total Available: 13
In Stock
Get 4 by
Tue, Jun 9
Total Available: 13
Add to List
QRI2A2.B180B Compare Checkbox
Compare
Infrared Flame Detector
SKU:
QRI2A2.B180B
Siemens
SKU:
QRI2A2.B180B
Brand:
Siemens
(1)
–
+
$1,432.62
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Jun 9
Total Available: 9
In Stock
Get 2 by
Tue, Jun 9
Total Available: 9
Add to List
RWF55.50A9 Compare Checkbox
Compare
RWF55.5 3-Position Analog Controller - Single Pack
SKU:
RWF55.50A9
Siemens
SKU:
RWF55.50A9
Brand:
Siemens
–
+
$1,970.44
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Jun 9
Total Available: 13
In Stock
Get 2 by
Tue, Jun 9
Total Available: 13
Add to List
7MF15654CA005EA1 Compare Checkbox
Compare
3" MNPT P200 Transducer 4-20 ma (0-150 PSI)
SKU:
7MF15654CA005EA1
Siemens
SKU:
7MF15654CA005EA1
Brand:
Siemens
–
+
$354.22
each
ADD TO CART
Add to List
In Stock
Get 9 by
Wed, Jun 10
In Stock
Get 9 by
Wed, Jun 10
Add to List
536-811 Compare Checkbox
Compare
Duct Temperature Sensor - 100k Ohm Thermistor
SKU:
536-811
Siemens
SKU:
536-811
Brand:
Siemens
–
+
$18.65
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Jun 9
Total Available: 21
In Stock
Get 2 by
Tue, Jun 9
Total Available: 21
Add to List
AGA22 Compare Checkbox
Compare
Setpoint Spring 6-48"
SKU:
AGA22
Siemens
SKU:
AGA22
Brand:
Siemens
–
+
$41.94
each
ADD TO CART
Add to List
Backorder
Get it by
Tue, Jun 30 - Wed, Jul 8
Backorder
Get it by
Tue, Jun 30 - Wed, Jul 8
Add to List
QRA2M-1 Compare Checkbox
Compare
QRA2M(1) High Sensitivity Flame Detector w/ Green Terminal Cover
SKU:
QRA2M-1
Siemens
SKU:
QRA2M-1
Brand:
Siemens
–
+
$757.45
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Jun 9
Total Available: 15
In Stock
Get 2 by
Tue, Jun 9
Total Available: 15
Add to List
ECGB14 Compare Checkbox
Compare
14 Position Ground Bar Kit
SKU:
ECGB14
Siemens
SKU:
ECGB14
Brand:
Siemens
–
+
$13.87
each
ADD TO CART
Add to List
In Stock
Get 234 by
Wed, Jun 10
In Stock
Get 234 by
Wed, Jun 10
Add to List
QAC3171 Compare Checkbox
Compare
Outdoor Temperature Sensor, 4-20mA
SKU:
QAC3171
Siemens
SKU:
QAC3171
Brand:
Siemens
–
+
$103.54
each
ADD TO CART
Add to List
In Stock
Get 5 by
Tue, Jun 9
Total Available: 24
In Stock
Get 5 by
Tue, Jun 9
Total Available: 24
Add to List
AQE2000.005 Compare Checkbox
Compare
2-1/2" (64 mm) Immersion Well
SKU:
AQE2000.005
Siemens
SKU:
AQE2000.005
Brand:
Siemens
–
+
$26.85
each
ADD TO CART
Add to List
In Stock
Get 3 by
Tue, Jun 9
Total Available: 10
In Stock
Get 3 by
Tue, Jun 9
Total Available: 10
Add to List
AGA25.2 Compare Checkbox
Compare
Dampening Orifice
SKU:
AGA25.2
Siemens
SKU:
AGA25.2
Brand:
Siemens
–
+
$79.46
each
ADD TO CART
Add to List
In Stock
Get 3 by
Wed, Jun 10
Total Available: 4
In Stock
Get 3 by
Wed, Jun 10
Total Available: 4
Add to List
AZL52.40B1 Compare Checkbox
Compare
Burner Digital Display Unit
SKU:
AZL52.40B1
Siemens
SKU:
AZL52.40B1
Brand:
Siemens
–
+
$2,169.97
each
ADD TO CART
Add to List
In Stock
Get 3 by
Wed, Jun 10
Total Available: 7
In Stock
Get 3 by
Wed, Jun 10
Total Available: 7
Add to List
1
2
3
4
...
19
Refresh
×
Video